diff --git a/app/build.gradle b/app/build.gradle
index e99537be..c6a67c5a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,8 +8,8 @@ android {
         applicationId "com.stardust.scriptdroid"
         minSdkVersion 17
         targetSdkVersion 23
-        versionCode 257
-        versionName "3.1.1 Alpha"
+        versionCode 258
+        versionName "3.1.1 Alpha2"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
         ndk {
diff --git a/app/src/main/assets/sample/界面控件/复选框单选框控件.js b/app/src/main/assets/sample/界面控件/复选框单选框控件.js
index 2e5a21d5..fcb55d8a 100644
--- a/app/src/main/assets/sample/界面控件/复选框单选框控件.js
+++ b/app/src/main/assets/sample/界面控件/复选框单选框控件.js
@@ -17,7 +17,7 @@ ui.layout(
     </vertical>
 );
 
-id.cb1.on("check", (checked)=>{
+ui.cb1.on("check", (checked)=>{
     if(checked){
         toast("第一个框被勾选了");
     }else{
diff --git a/app/src/main/java/com/stardust/scriptdroid/App.java b/app/src/main/java/com/stardust/scriptdroid/App.java
index 1961131f..e31dce20 100644
--- a/app/src/main/java/com/stardust/scriptdroid/App.java
+++ b/app/src/main/java/com/stardust/scriptdroid/App.java
@@ -15,6 +15,7 @@ import com.raizlabs.android.dbflow.config.FlowConfig;
 import com.raizlabs.android.dbflow.config.FlowManager;
 import com.raizlabs.android.dbflow.runtime.DirectModelNotifier;
 import com.squareup.leakcanary.LeakCanary;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.core.ui.inflater.ImageLoader;
 import com.stardust.autojs.core.ui.inflater.util.Drawables;
 import com.stardust.scriptdroid.autojs.AutoJs;
@@ -40,7 +41,6 @@ public class App extends MultiDexApplication {
     private static final String TAG = "App";
 
     private static WeakReference<App> instance;
-    private UiHandler mUiHandler;
 
     public static App getApp() {
         return instance.get();
@@ -48,8 +48,8 @@ public class App extends MultiDexApplication {
 
     public void onCreate() {
         super.onCreate();
+        GlobalAppContext.set(this);
         instance = new WeakReference<>(this);
-        mUiHandler = new UiHandler(this);
         setUpStaticsTool();
         setUpDebugEnvironment();
         init();
@@ -142,7 +142,4 @@ public class App extends MultiDexApplication {
     }
 
 
-    public UiHandler getUiHandler() {
-        return mUiHandler;
-    }
 }
diff --git a/app/src/main/java/com/stardust/scriptdroid/Pref.java b/app/src/main/java/com/stardust/scriptdroid/Pref.java
index 7aaec39f..3118037b 100644
--- a/app/src/main/java/com/stardust/scriptdroid/Pref.java
+++ b/app/src/main/java/com/stardust/scriptdroid/Pref.java
@@ -4,6 +4,7 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.runtime.accessibility.AccessibilityConfig;
 import com.stardust.scriptdroid.autojs.key.GlobalKeyObserver;
 
@@ -14,7 +15,7 @@ import java.util.concurrent.TimeUnit;
  */
 public class Pref {
 
-    private static final SharedPreferences DISPOSABLE_BOOLEAN = App.getApp().getSharedPreferences("DISPOSABLE_BOOLEAN", Context.MODE_PRIVATE);
+    private static final SharedPreferences DISPOSABLE_BOOLEAN = GlobalAppContext.get().getSharedPreferences("DISPOSABLE_BOOLEAN", Context.MODE_PRIVATE);
     private static final String KEY_SERVER_ADDRESS = "Still love you...17.5.14";
     private static final String KEY_SHOULD_SHOW_ANNUNCIATION = "Sing about all the things you forgot, things you are not";
     private static final String KEY_FIRST_SHOW_AD = "En, Today is 17.7.7, but, I'm still love you so....";
@@ -40,7 +41,7 @@ public class Pref {
     }
 
     private static SharedPreferences def() {
-        return PreferenceManager.getDefaultSharedPreferences(App.getApp());
+        return PreferenceManager.getDefaultSharedPreferences(GlobalAppContext.get());
     }
 
     private static boolean getDisposableBoolean(String key, boolean defaultValue) {
@@ -68,7 +69,7 @@ public class Pref {
     }
 
     private static String getString(int id) {
-        return App.getApp().getString(id);
+        return GlobalAppContext.getString(id);
     }
 
     public static boolean isFirstUsing() {
diff --git a/app/src/main/java/com/stardust/scriptdroid/autojs/AutoJs.java b/app/src/main/java/com/stardust/scriptdroid/autojs/AutoJs.java
index 19135e71..d71bc376 100644
--- a/app/src/main/java/com/stardust/scriptdroid/autojs/AutoJs.java
+++ b/app/src/main/java/com/stardust/scriptdroid/autojs/AutoJs.java
@@ -3,6 +3,7 @@ package com.stardust.scriptdroid.autojs;
 import android.app.Application;
 import android.content.Context;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.core.console.GlobalStardustConsole;
 import com.stardust.autojs.runtime.ScriptRuntime;
 import com.stardust.autojs.runtime.accessibility.AccessibilityConfig;
@@ -33,13 +34,13 @@ public class AutoJs extends com.stardust.autojs.AutoJs {
         return instance;
     }
 
-    public static void initInstance(Context context) {
-        instance = new AutoJs(context);
+    public static void initInstance(Application application) {
+        instance = new AutoJs(application);
     }
 
 
-    private AutoJs(final Context context) {
-        super(context);
+    private AutoJs(final Application application) {
+        super(application);
         getScriptEngineService().registerGlobalScriptExecutionListener(new ScriptExecutionGlobalListener());
     }
 
@@ -60,15 +61,15 @@ public class AutoJs extends com.stardust.autojs.AutoJs {
             return;
         }
         String errorMessage = null;
-        if (AccessibilityServiceTool.isAccessibilityServiceEnabled(App.getApp())) {
-            errorMessage = App.getApp().getString(R.string.text_auto_operate_service_enabled_but_not_running);
+        if (AccessibilityServiceTool.isAccessibilityServiceEnabled(GlobalAppContext.get())) {
+            errorMessage = GlobalAppContext.getString(R.string.text_auto_operate_service_enabled_but_not_running);
         } else {
             if (Pref.shouldEnableAccessibilityServiceByRoot()) {
                 if (!AccessibilityServiceTool.enableAccessibilityServiceByRootAndWaitFor(2000)) {
-                    errorMessage = App.getApp().getString(R.string.text_enable_accessibility_service_by_root_timeout);
+                    errorMessage = GlobalAppContext.getString(R.string.text_enable_accessibility_service_by_root_timeout);
                 }
             } else {
-                errorMessage = App.getApp().getString(R.string.text_no_accessibility_permission);
+                errorMessage = GlobalAppContext.getString(R.string.text_no_accessibility_permission);
             }
         }
         if (errorMessage != null) {
@@ -83,15 +84,15 @@ public class AutoJs extends com.stardust.autojs.AutoJs {
             return;
         }
         String errorMessage = null;
-        if (AccessibilityServiceTool.isAccessibilityServiceEnabled(App.getApp())) {
-            errorMessage = App.getApp().getString(R.string.text_auto_operate_service_enabled_but_not_running);
+        if (AccessibilityServiceTool.isAccessibilityServiceEnabled(GlobalAppContext.get())) {
+            errorMessage = GlobalAppContext.getString(R.string.text_auto_operate_service_enabled_but_not_running);
         } else {
             if (Pref.shouldEnableAccessibilityServiceByRoot()) {
                 if (!AccessibilityServiceTool.enableAccessibilityServiceByRootAndWaitFor(2000)) {
-                    errorMessage = App.getApp().getString(R.string.text_enable_accessibility_service_by_root_timeout);
+                    errorMessage = GlobalAppContext.getString(R.string.text_enable_accessibility_service_by_root_timeout);
                 }
             } else {
-                errorMessage = App.getApp().getString(R.string.text_no_accessibility_permission);
+                errorMessage = GlobalAppContext.getString(R.string.text_no_accessibility_permission);
             }
         }
         if (errorMessage != null) {
@@ -111,11 +112,6 @@ public class AutoJs extends com.stardust.autojs.AutoJs {
         return config;
     }
 
-    @Override
-    protected Application getApplication() {
-        return App.getApp();
-    }
-
     @Override
     protected ScriptRuntime createRuntime() {
         ScriptRuntime runtime = super.createRuntime();
diff --git a/app/src/main/java/com/stardust/scriptdroid/autojs/ScriptExecutionGlobalListener.java b/app/src/main/java/com/stardust/scriptdroid/autojs/ScriptExecutionGlobalListener.java
index 18b2076e..b77d56e3 100644
--- a/app/src/main/java/com/stardust/scriptdroid/autojs/ScriptExecutionGlobalListener.java
+++ b/app/src/main/java/com/stardust/scriptdroid/autojs/ScriptExecutionGlobalListener.java
@@ -1,5 +1,6 @@
 package com.stardust.scriptdroid.autojs;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.engine.JavaScriptEngine;
 import com.stardust.autojs.execution.ScriptExecution;
 import com.stardust.autojs.execution.ScriptExecutionListener;
@@ -29,7 +30,7 @@ public class ScriptExecutionGlobalListener implements ScriptExecutionListener {
             return;
         double seconds = (System.currentTimeMillis() - millis) / 1000.0;
         AutoJs.getInstance().getScriptEngineService().getGlobalConsole()
-                .verbose(App.getApp().getString(R.string.text_execution_finished), execution.getSource().toString(), seconds);
+                .verbose(GlobalAppContext.getString(R.string.text_execution_finished), execution.getSource().toString(), seconds);
     }
 
     @Override
diff --git a/app/src/main/java/com/stardust/scriptdroid/autojs/build/AutoJsApkBuilder.java b/app/src/main/java/com/stardust/scriptdroid/autojs/build/AutoJsApkBuilder.java
index 37e82072..98a6333a 100644
--- a/app/src/main/java/com/stardust/scriptdroid/autojs/build/AutoJsApkBuilder.java
+++ b/app/src/main/java/com/stardust/scriptdroid/autojs/build/AutoJsApkBuilder.java
@@ -2,6 +2,7 @@ package com.stardust.scriptdroid.autojs.build;
 
 import android.graphics.Bitmap;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.apkbuilder.ApkBuilder;
 import com.stardust.autojs.apkbuilder.ManifestEditor;
 import com.stardust.autojs.apkbuilder.util.StreamUtils;
@@ -98,7 +99,7 @@ public class AutoJsApkBuilder extends ApkBuilder {
     @Override
     public AutoJsApkBuilder prepare() throws IOException {
         if (mProgressCallback != null) {
-            App.getApp().getUiHandler().post(() -> mProgressCallback.onPrepare(AutoJsApkBuilder.this));
+            GlobalAppContext.post(() -> mProgressCallback.onPrepare(AutoJsApkBuilder.this));
         }
         return (AutoJsApkBuilder) super.prepare();
     }
@@ -179,7 +180,7 @@ public class AutoJsApkBuilder extends ApkBuilder {
     @Override
     public AutoJsApkBuilder build() throws IOException {
         if (mProgressCallback != null) {
-            App.getApp().getUiHandler().post(() -> mProgressCallback.onBuild(AutoJsApkBuilder.this));
+            GlobalAppContext.post(() -> mProgressCallback.onBuild(AutoJsApkBuilder.this));
         }
         mManifestEditor.commit();
         if (mAppConfig.icon != null) {
@@ -196,7 +197,7 @@ public class AutoJsApkBuilder extends ApkBuilder {
     @Override
     public AutoJsApkBuilder sign() throws Exception {
         if (mProgressCallback != null) {
-            App.getApp().getUiHandler().post(() -> mProgressCallback.onSign(AutoJsApkBuilder.this));
+            GlobalAppContext.post(() -> mProgressCallback.onSign(AutoJsApkBuilder.this));
         }
         return (AutoJsApkBuilder) super.sign();
     }
@@ -204,7 +205,7 @@ public class AutoJsApkBuilder extends ApkBuilder {
     @Override
     public AutoJsApkBuilder cleanWorkspace() {
         if (mProgressCallback != null) {
-            App.getApp().getUiHandler().post(() -> mProgressCallback.onClean(AutoJsApkBuilder.this));
+            GlobalAppContext.post(() -> mProgressCallback.onClean(AutoJsApkBuilder.this));
         }
         return (AutoJsApkBuilder) super.cleanWorkspace();
     }
diff --git a/app/src/main/java/com/stardust/scriptdroid/autojs/record/GlobalActionRecorder.java b/app/src/main/java/com/stardust/scriptdroid/autojs/record/GlobalActionRecorder.java
index db6b2511..9128ab70 100644
--- a/app/src/main/java/com/stardust/scriptdroid/autojs/record/GlobalActionRecorder.java
+++ b/app/src/main/java/com/stardust/scriptdroid/autojs/record/GlobalActionRecorder.java
@@ -6,6 +6,7 @@ import android.view.ContextThemeWrapper;
 import android.widget.Toast;
 
 import com.stardust.app.DialogUtils;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.core.record.Recorder;
 import com.stardust.autojs.core.record.inputevent.InputEventRecorder;
 import com.stardust.autojs.core.record.inputevent.InputEventToAutoFileRecorder;
@@ -106,7 +107,7 @@ public class GlobalActionRecorder implements Recorder.OnStateChangedListener {
     @Override
     public void onStart() {
         if (Pref.isRecordToastEnabled())
-            App.getApp().getUiHandler().toast(R.string.text_start_record);
+            GlobalAppContext.toast(R.string.text_start_record);
         for (Recorder.OnStateChangedListener listener : mOnStateChangedListeners) {
             listener.onStart();
         }
@@ -150,13 +151,13 @@ public class GlobalActionRecorder implements Recorder.OnStateChangedListener {
         if (Looper.myLooper() == Looper.getMainLooper()) {
             showRecordHandleDialog(script);
         } else {
-            App.getApp().getUiHandler().post(() -> showRecordHandleDialog(script));
+            GlobalAppContext.post(() -> showRecordHandleDialog(script));
         }
     }
 
     private void handleRecordedFile(final String path) {
         if (Looper.myLooper() != Looper.getMainLooper()) {
-            App.getApp().getUiHandler().post(() -> handleRecordedFile(path));
+            GlobalAppContext.post(() -> handleRecordedFile(path));
             return;
         }
         new ScriptOperations(mContext, null)
diff --git a/app/src/main/java/com/stardust/scriptdroid/external/widget/ScriptWidgets.java b/app/src/main/java/com/stardust/scriptdroid/external/widget/ScriptWidgets.java
index b80f0d05..ffa34c93 100644
--- a/app/src/main/java/com/stardust/scriptdroid/external/widget/ScriptWidgets.java
+++ b/app/src/main/java/com/stardust/scriptdroid/external/widget/ScriptWidgets.java
@@ -4,6 +4,7 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.util.Log;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.scriptdroid.App;
 
 import java.util.HashSet;
@@ -22,7 +23,7 @@ public class ScriptWidgets {
 
 
     private static final String LOG_TAG = "ScriptWidgets";
-    private static SharedPreferences widgets = App.getApp().getSharedPreferences("ScriptWidgets", Context.MODE_PRIVATE);
+    private static SharedPreferences widgets = GlobalAppContext.get().getSharedPreferences("ScriptWidgets", Context.MODE_PRIVATE);
     private static final Pattern ID_PATTERN = Pattern.compile("[a-zA-Z]+_([0-9])+");
 
     static String getPathForAppWidgetId(int id) {
diff --git a/app/src/main/java/com/stardust/scriptdroid/model/script/Scripts.java b/app/src/main/java/com/stardust/scriptdroid/model/script/Scripts.java
index 343345be..89c40a4d 100644
--- a/app/src/main/java/com/stardust/scriptdroid/model/script/Scripts.java
+++ b/app/src/main/java/com/stardust/scriptdroid/model/script/Scripts.java
@@ -4,6 +4,7 @@ import android.content.Intent;
 import android.net.Uri;
 import android.support.annotation.Nullable;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.execution.ExecutionConfig;
 import com.stardust.autojs.execution.ScriptExecution;
 import com.stardust.autojs.execution.ScriptExecutionListener;
@@ -39,7 +40,7 @@ public class Scripts {
 
         @Override
         public void onSuccess(ScriptExecution execution, Object result) {
-            App.getApp().sendBroadcast(new Intent(ACTION_ON_EXECUTION_FINISHED));
+            GlobalAppContext.get().sendBroadcast(new Intent(ACTION_ON_EXECUTION_FINISHED));
         }
 
         @Override
@@ -51,11 +52,11 @@ public class Scripts {
                 col = rhinoException.columnNumber();
             }
             if (ScriptInterruptedException.causedByInterrupted(e)) {
-                App.getApp().sendBroadcast(new Intent(ACTION_ON_EXECUTION_FINISHED)
+                GlobalAppContext.get().sendBroadcast(new Intent(ACTION_ON_EXECUTION_FINISHED)
                         .putExtra(EXTRA_EXCEPTION_LINE_NUMBER, line)
                         .putExtra(EXTRA_EXCEPTION_COLUMN_NUMBER, col));
             } else {
-                App.getApp().sendBroadcast(new Intent(ACTION_ON_EXECUTION_FINISHED)
+                GlobalAppContext.get().sendBroadcast(new Intent(ACTION_ON_EXECUTION_FINISHED)
                         .putExtra(EXTRA_EXCEPTION_MESSAGE, e.getMessage())
                         .putExtra(EXTRA_EXCEPTION_LINE_NUMBER, line)
                         .putExtra(EXTRA_EXCEPTION_COLUMN_NUMBER, col));
@@ -67,7 +68,7 @@ public class Scripts {
 
     public static void openByOtherApps(String path) {
         Uri uri = Uri.parse("file://" + path);
-        App.getApp().startActivity(new Intent(Intent.ACTION_VIEW).setDataAndType(uri, "text/plain").addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
+        GlobalAppContext.get().startActivity(new Intent(Intent.ACTION_VIEW).setDataAndType(uri, "text/plain").addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
     }
 
     public static void openByOtherApps(File file) {
@@ -75,7 +76,7 @@ public class Scripts {
     }
 
     public static void createShortcut(ScriptFile scriptFile) {
-        new Shortcut(App.getApp()).name(scriptFile.getSimplifiedName())
+        new Shortcut(GlobalAppContext.get()).name(scriptFile.getSimplifiedName())
                 .targetClass(ShortcutActivity.class)
                 .iconRes(R.drawable.ic_node_js_black)
                 .extras(new Intent().putExtra(ScriptIntents.EXTRA_KEY_PATH, scriptFile.getPath()))
@@ -84,7 +85,7 @@ public class Scripts {
 
 
     public static void edit(ScriptFile file) {
-        EditActivity.editFile(App.getApp(), file.getSimplifiedName(), file.getPath());
+        EditActivity.editFile(GlobalAppContext.get(), file.getSimplifiedName(), file.getPath());
     }
 
     public static void edit(String path) {
@@ -128,10 +129,10 @@ public class Scripts {
     }
 
     public static void send(ScriptFile file) {
-        App.getApp().startActivity(Intent.createChooser(new Intent(Intent.ACTION_SEND)
+        GlobalAppContext.get().startActivity(Intent.createChooser(new Intent(Intent.ACTION_SEND)
                         .setType("text/plain")
                         .putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file)),
-                App.getApp().getString(R.string.text_send)
+                GlobalAppContext.getString(R.string.text_send)
         ).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
 
     }
diff --git a/app/src/main/java/com/stardust/scriptdroid/pluginclient/DevPluginResponseHandler.java b/app/src/main/java/com/stardust/scriptdroid/pluginclient/DevPluginResponseHandler.java
index 52e54c15..101d0b74 100644
--- a/app/src/main/java/com/stardust/scriptdroid/pluginclient/DevPluginResponseHandler.java
+++ b/app/src/main/java/com/stardust/scriptdroid/pluginclient/DevPluginResponseHandler.java
@@ -5,6 +5,7 @@ import android.text.TextUtils;
 import com.google.gson.JsonElement;
 import com.google.gson.JsonNull;
 import com.google.gson.JsonObject;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.execution.ScriptExecution;
 import com.stardust.autojs.script.StringScriptSource;
 import com.stardust.pio.PFiles;
@@ -100,6 +101,6 @@ public class DevPluginResponseHandler implements Handler {
             name = "<remote>" + name;
         }
         PFiles.write(StorageFileProvider.DEFAULT_DIRECTORY_PATH + name, script);
-        App.getApp().getUiHandler().toast(R.string.text_script_save_successfully);
+        GlobalAppContext.toast(R.string.text_script_save_successfully);
     }
 }
diff --git a/app/src/main/java/com/stardust/scriptdroid/storage/file/StorageFileProvider.java b/app/src/main/java/com/stardust/scriptdroid/storage/file/StorageFileProvider.java
index 4fcb5aea..c8f97798 100644
--- a/app/src/main/java/com/stardust/scriptdroid/storage/file/StorageFileProvider.java
+++ b/app/src/main/java/com/stardust/scriptdroid/storage/file/StorageFileProvider.java
@@ -2,6 +2,7 @@ package com.stardust.scriptdroid.storage.file;
 
 import android.os.Environment;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.pio.PFile;
 import com.stardust.scriptdroid.App;
 import com.stardust.scriptdroid.R;
@@ -27,7 +28,7 @@ public class StorageFileProvider {
     public static final int CREATE = 1;
     public static final int CHANGE = 2;
     public static final int ALL = 3;
-    public static final String DEFAULT_DIRECTORY_PATH = Environment.getExternalStorageDirectory() + App.getApp().getString(R.string.folder_name);
+    public static final String DEFAULT_DIRECTORY_PATH = Environment.getExternalStorageDirectory() + GlobalAppContext.getString(R.string.folder_name);
     public static final PFile DEFAULT_DIRECTORY = new PFile(DEFAULT_DIRECTORY_PATH);
     public static final FileFilter SCRIPT_FILTER = file ->
             file.isDirectory() || file.getName().endsWith(".js") || file.getName().endsWith(".auto");
diff --git a/app/src/main/java/com/stardust/scriptdroid/timing/TimedTaskManager.java b/app/src/main/java/com/stardust/scriptdroid/timing/TimedTaskManager.java
index 4f00cea2..e287b93b 100644
--- a/app/src/main/java/com/stardust/scriptdroid/timing/TimedTaskManager.java
+++ b/app/src/main/java/com/stardust/scriptdroid/timing/TimedTaskManager.java
@@ -11,6 +11,7 @@ import com.raizlabs.android.dbflow.rx2.language.RXSQLite;
 import com.raizlabs.android.dbflow.sql.language.SQLite;
 import com.raizlabs.android.dbflow.structure.BaseModel;
 import com.raizlabs.android.dbflow.structure.ModelAdapter;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.scriptdroid.App;
 import com.stardust.scriptdroid.storage.database.ModelChange;
 import com.stardust.scriptdroid.storage.database.TimedTaskDatabase;
@@ -37,7 +38,7 @@ public class TimedTaskManager {
 
     public static TimedTaskManager getInstance() {
         if (sInstance == null) {
-            sInstance = new TimedTaskManager(App.getApp());
+            sInstance = new TimedTaskManager(GlobalAppContext.get());
         }
         return sInstance;
     }
diff --git a/app/src/main/java/com/stardust/scriptdroid/tool/AccessibilityServiceTool.java b/app/src/main/java/com/stardust/scriptdroid/tool/AccessibilityServiceTool.java
index b8f0df2e..780e21a7 100644
--- a/app/src/main/java/com/stardust/scriptdroid/tool/AccessibilityServiceTool.java
+++ b/app/src/main/java/com/stardust/scriptdroid/tool/AccessibilityServiceTool.java
@@ -4,6 +4,7 @@ import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.text.TextUtils;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.scriptdroid.Pref;
 import com.stardust.scriptdroid.App;
 import com.stardust.scriptdroid.R;
@@ -32,14 +33,14 @@ public class AccessibilityServiceTool {
     }
 
     public static void goToAccessibilitySetting() {
-        Context context = App.getApp();
+        Context context = GlobalAppContext.get();
         if (Pref.isFirstGoToAccessibilitySetting()) {
-            App.getApp().getUiHandler().toast(context.getString(R.string.text_please_choose) + context.getString(R.string._app_name));
+            GlobalAppContext.toast(context.getString(R.string.text_please_choose) + context.getString(R.string._app_name));
         }
         try {
             AccessibilityServiceUtils.goToAccessibilitySetting(context);
         } catch (ActivityNotFoundException e) {
-            App.getApp().getUiHandler().toast(context.getString(R.string.go_to_accessibility_settings) + context.getString(R.string._app_name));
+            GlobalAppContext.toast(context.getString(R.string.go_to_accessibility_settings) + context.getString(R.string._app_name));
         }
     }
 
@@ -55,7 +56,7 @@ public class AccessibilityServiceTool {
             "settings put secure accessibility_enabled 1";
 
     public static boolean enableAccessibilityServiceByRoot(Class<? extends android.accessibilityservice.AccessibilityService> accessibilityService) {
-        String serviceName = App.getApp().getPackageName() + "/" + accessibilityService.getName();
+        String serviceName = GlobalAppContext.get().getPackageName() + "/" + accessibilityService.getName();
         try {
             return TextUtils.isEmpty(ProcessShell.execCommand(String.format(Locale.getDefault(), cmd, serviceName), true).error);
         } catch (Exception e) {
diff --git a/app/src/main/java/com/stardust/scriptdroid/tool/CrashHandler.java b/app/src/main/java/com/stardust/scriptdroid/tool/CrashHandler.java
index c57736fb..bd32b44d 100644
--- a/app/src/main/java/com/stardust/scriptdroid/tool/CrashHandler.java
+++ b/app/src/main/java/com/stardust/scriptdroid/tool/CrashHandler.java
@@ -12,6 +12,7 @@ import android.util.Log;
 import android.view.WindowManager;
 import android.widget.Toast;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.scriptdroid.App;
 import com.stardust.scriptdroid.BuildConfig;
 import com.stardust.scriptdroid.R;
@@ -48,14 +49,14 @@ public class CrashHandler implements UncaughtExceptionHandler {
             return;
         }
         if (causedByBadWindowToken(ex)) {
-            Toast.makeText(App.getApp(), R.string.text_no_floating_window_permission, Toast.LENGTH_SHORT).show();
-            IntentUtil.goToAppDetailSettings(App.getApp());
+            Toast.makeText(GlobalAppContext.get(), R.string.text_no_floating_window_permission, Toast.LENGTH_SHORT).show();
+            IntentUtil.goToAppDetailSettings(GlobalAppContext.get());
         } else {
             try {
                 Log.e(TAG, "Uncaught Exception", ex);
                 if (crashTooManyTimes())
                     return;
-                String msg = App.getApp().getString(R.string.sorry_for_crash) + ex.toString();
+                String msg = GlobalAppContext.getString(R.string.sorry_for_crash) + ex.toString();
                 startErrorReportActivity(msg, throwableToString(ex));
                 System.exit(1);
             } catch (Throwable throwable) {
@@ -75,11 +76,11 @@ public class CrashHandler implements UncaughtExceptionHandler {
     }
 
     private void startErrorReportActivity(String msg, String detail) {
-        Intent intent = new Intent(App.getApp(), this.mErrorReportClass);
+        Intent intent = new Intent(GlobalAppContext.get(), this.mErrorReportClass);
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);
         intent.putExtra("message", msg);
         intent.putExtra("error", detail);
-        App.getApp().startActivity(intent);
+        GlobalAppContext.get().startActivity(intent);
     }
 
     private boolean crashTooManyTimes() {
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptLoopDialog.java b/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptLoopDialog.java
index f7fd20c9..acab30c8 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptLoopDialog.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptLoopDialog.java
@@ -9,6 +9,7 @@ import android.view.Window;
 import com.afollestad.materialdialogs.DialogAction;
 import com.afollestad.materialdialogs.MaterialDialog;
 import com.stardust.app.DialogUtils;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.scriptdroid.App;
 import com.stardust.scriptdroid.R;
 import com.stardust.scriptdroid.model.script.ScriptFile;
@@ -60,7 +61,7 @@ public class ScriptLoopDialog {
             float loopDelay = Float.parseFloat(mLoopDelay.getText().toString());
             Scripts.runRepeatedly(mScriptFile, loopTimes, (long) (1000L * loopDelay), (long) (loopInterval * 1000L));
         } catch (NumberFormatException e) {
-            App.getApp().getUiHandler().toast(R.string.text_number_format_error);
+            GlobalAppContext.toast(R.string.text_number_format_error);
         }
     }
 
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptOperations.java b/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptOperations.java
index 444ad65e..95ed191b 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptOperations.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptOperations.java
@@ -16,6 +16,7 @@ import android.widget.Toast;
 import com.afollestad.materialdialogs.DialogAction;
 import com.afollestad.materialdialogs.MaterialDialog;
 import com.stardust.app.DialogUtils;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.pio.PFile;
 import com.stardust.pio.PFiles;
 import com.stardust.pio.UncheckedIOException;
@@ -159,7 +160,7 @@ public class ScriptOperations {
             showMessageWithoutThreadSwitch(resId);
         }
         //switch to ui thread to show message
-        App.getApp().getUiHandler().post(() -> showMessageWithoutThreadSwitch(resId));
+        GlobalAppContext.post(() -> showMessageWithoutThreadSwitch(resId));
     }
 
     private void showMessageWithoutThreadSwitch(int resId) {
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/floating/FloatyWindowManger.java b/app/src/main/java/com/stardust/scriptdroid/ui/floating/FloatyWindowManger.java
index ba35d61c..bdb4f187 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/floating/FloatyWindowManger.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/floating/FloatyWindowManger.java
@@ -4,6 +4,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.widget.Toast;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.util.FloatingPermission;
 import com.stardust.enhancedfloaty.FloatyService;
 import com.stardust.enhancedfloaty.FloatyWindow;
@@ -53,13 +54,13 @@ public class FloatyWindowManger {
     }
 
     public static boolean showCircularMenu() {
-        if (!SettingsCompat.canDrawOverlays(App.getApp())) {
-            Toast.makeText(App.getApp(), R.string.text_no_floating_window_permission, Toast.LENGTH_SHORT).show();
-            manageDrawOverlays(App.getApp());
+        if (!SettingsCompat.canDrawOverlays(GlobalAppContext.get())) {
+            Toast.makeText(GlobalAppContext.get(), R.string.text_no_floating_window_permission, Toast.LENGTH_SHORT).show();
+            manageDrawOverlays(GlobalAppContext.get());
             return false;
         } else {
-            App.getApp().startService(new Intent(App.getApp(), FloatyService.class));
-            CircularMenu menu = new CircularMenu(App.getApp());
+            GlobalAppContext.get().startService(new Intent(GlobalAppContext.get(), FloatyService.class));
+            CircularMenu menu = new CircularMenu(GlobalAppContext.get());
             sCircularMenu = new WeakReference<>(menu);
             return true;
         }
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/main/drawer/DrawerFragment.java b/app/src/main/java/com/stardust/scriptdroid/ui/main/drawer/DrawerFragment.java
index 4a86dab3..90749cfb 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/main/drawer/DrawerFragment.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/main/drawer/DrawerFragment.java
@@ -18,6 +18,7 @@ import com.afollestad.materialdialogs.MaterialDialog;
 import com.bumptech.glide.load.engine.DiskCacheStrategy;
 import com.bumptech.glide.request.target.SimpleTarget;
 import com.bumptech.glide.request.transition.Transition;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.notification.NotificationListenerService;
 import com.stardust.scriptdroid.App;
 import com.stardust.scriptdroid.Pref;
@@ -276,7 +277,7 @@ public class DrawerFragment extends android.support.v4.app.Fragment {
                             new UpdateInfoDialogBuilder(getActivity(), versionInfo)
                                     .show();
                         } else {
-                            Toast.makeText(App.getApp(), R.string.text_is_latest_version, Toast.LENGTH_SHORT).show();
+                            Toast.makeText(GlobalAppContext.get(), R.string.text_is_latest_version, Toast.LENGTH_SHORT).show();
                         }
                         setProgress(mCheckForUpdatesItem, false);
                     }
@@ -284,7 +285,7 @@ public class DrawerFragment extends android.support.v4.app.Fragment {
                     @Override
                     public void onError(@io.reactivex.annotations.NonNull Throwable e) {
                         e.printStackTrace();
-                        Toast.makeText(App.getApp(), R.string.text_check_update_error, Toast.LENGTH_SHORT).show();
+                        Toast.makeText(GlobalAppContext.get(), R.string.text_check_update_error, Toast.LENGTH_SHORT).show();
                         setProgress(mCheckForUpdatesItem, false);
                     }
                 });
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/main/task/Task.java b/app/src/main/java/com/stardust/scriptdroid/ui/main/task/Task.java
index 8526962f..c6f86a7d 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/main/task/Task.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/main/task/Task.java
@@ -3,6 +3,7 @@ package com.stardust.scriptdroid.ui.main.task;
 import android.os.Parcel;
 import android.os.Parcelable;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.engine.JavaScriptEngine;
 import com.stardust.autojs.engine.ScriptEngine;
 import com.stardust.autojs.engine.ScriptEngineFactory;
@@ -22,7 +23,7 @@ import org.joda.time.format.DateTimeFormat;
  * Created by Stardust on 2017/11/28.
  */
 
-public abstract class Task implements Parcelable {
+public abstract class Task  {
 
     public abstract String getName();
 
@@ -32,16 +33,6 @@ public abstract class Task implements Parcelable {
 
     public abstract String getEngineName();
 
-    @Override
-    public int describeContents() {
-        return 0;
-    }
-
-    @Override
-    public void writeToParcel(Parcel dest, int flags) {
-
-    }
-
     public static class PendingTask extends Task {
 
         private TimedTask mTimedTask;
@@ -63,7 +54,7 @@ public abstract class Task implements Parcelable {
         @Override
         public String getDesc() {
             long nextTime = mTimedTask.getNextTime();
-            return App.getApp().getString(R.string.text_next_run_time) + ": " +
+            return GlobalAppContext.getString(R.string.text_next_run_time) + ": " +
                     DateTimeFormat.shortDateTime().print(nextTime);
         }
 
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/update/UpdateCheckDialog.java b/app/src/main/java/com/stardust/scriptdroid/ui/update/UpdateCheckDialog.java
index ed2f21ce..c815513b 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/update/UpdateCheckDialog.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/update/UpdateCheckDialog.java
@@ -4,6 +4,7 @@ import android.content.Context;
 import android.widget.Toast;
 
 import com.afollestad.materialdialogs.MaterialDialog;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.scriptdroid.App;
 import com.stardust.scriptdroid.R;
 import com.stardust.scriptdroid.network.VersionService;
@@ -42,7 +43,7 @@ public class UpdateCheckDialog {
                             new UpdateInfoDialogBuilder(mContext, versionInfo)
                                     .show();
                         } else {
-                            Toast.makeText(App.getApp(), R.string.text_is_latest_version, Toast.LENGTH_SHORT).show();
+                            Toast.makeText(GlobalAppContext.get(), R.string.text_is_latest_version, Toast.LENGTH_SHORT).show();
                         }
                     }
 
@@ -50,7 +51,7 @@ public class UpdateCheckDialog {
                     public void onError(@NonNull Throwable e) {
                         e.printStackTrace();
                         mProgress.dismiss();
-                        Toast.makeText(App.getApp(), R.string.text_check_update_error, Toast.LENGTH_SHORT).show();
+                        Toast.makeText(GlobalAppContext.get(), R.string.text_check_update_error, Toast.LENGTH_SHORT).show();
                     }
                 });
     }
diff --git a/app/src/main/java/com/stardust/theme/ThemeColorManagerCompat.java b/app/src/main/java/com/stardust/theme/ThemeColorManagerCompat.java
index 0c23a47e..f53726a0 100644
--- a/app/src/main/java/com/stardust/theme/ThemeColorManagerCompat.java
+++ b/app/src/main/java/com/stardust/theme/ThemeColorManagerCompat.java
@@ -1,5 +1,6 @@
 package com.stardust.theme;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.scriptdroid.*;
 import com.stardust.scriptdroid.R;
 
@@ -12,7 +13,7 @@ public class ThemeColorManagerCompat {
     public static int getColorPrimary() {
         int color = ThemeColorManager.getColorPrimary();
         if (color == 0) {
-            return App.getApp().getResources().getColor(R.color.colorPrimary);
+            return GlobalAppContext.get().getResources().getColor(R.color.colorPrimary);
         } else {
             return color;
         }
diff --git a/autojs/src/main/assets/init.js b/autojs/src/main/assets/init.js
index b2367199..63ee9547 100644
--- a/autojs/src/main/assets/init.js
+++ b/autojs/src/main/assets/init.js
@@ -96,6 +96,7 @@ runtime.init();
     importClass(android.view.KeyEvent);
     importClass(com.stardust.autojs.core.util.Shell);
     importClass(android.graphics.Paint);
+    importClass(android.graphics.Canvas);
 
     //重定向require以便支持相对路径
     (function(){
diff --git a/autojs/src/main/assets/modules/__ui__.js b/autojs/src/main/assets/modules/__ui__.js
index a063855b..ae9f2803 100644
--- a/autojs/src/main/assets/modules/__ui__.js
+++ b/autojs/src/main/assets/modules/__ui__.js
@@ -161,7 +161,9 @@ module.exports = function(__runtime__, scope){
         function emit(){
             var args = arguments;
             scope.__exitIfError__(function(){
-               view.emit.apply(view, args);
+                //不支持使用apply的原因是rhino会把参数中的primitive变成object
+                functionApply(view.emit, args);
+               //view.emit.apply(view, args);
             });
         }
         return view;
@@ -198,7 +200,7 @@ module.exports = function(__runtime__, scope){
         if(args.length == 5)
             return func(args[0], args[1], args[2], args[3], args[4]);
         if(args.length == 6)
-            return func(args[0], args[1], args[2], args[3], args[5]);
+            return func(args[0], args[1], args[2], args[3], args[4], args[5]);
         throw new Error("too many arguments: " + args.length);
     }
 
diff --git a/autojs/src/main/java/com/stardust/autojs/AutoJs.java b/autojs/src/main/java/com/stardust/autojs/AutoJs.java
index 51022c5c..6052ed7f 100644
--- a/autojs/src/main/java/com/stardust/autojs/AutoJs.java
+++ b/autojs/src/main/java/com/stardust/autojs/AutoJs.java
@@ -4,6 +4,10 @@ import android.app.Activity;
 import android.app.Application;
 import android.content.Context;
 import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
 import android.os.Build;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
@@ -52,6 +56,7 @@ public abstract class AutoJs {
     private ScriptEngineManager mScriptEngineManager;
     private final LayoutInspector mLayoutInspector = new LayoutInspector();
     private final Context mContext;
+    private final Application mApplication;
     private final UiHandler mUiHandler;
     private final AppUtils mAppUtils;
     private final AccessibilityInfoProvider mAccessibilityInfoProvider;
@@ -60,13 +65,14 @@ public abstract class AutoJs {
     private final Console mGlobalConsole;
 
 
-    protected AutoJs(final Context context) {
-        mContext = context;
-        mUiHandler = new UiHandler(context);
-        mAppUtils = new AppUtils(context);
+    protected AutoJs(final Application application) {
+        mContext = application.getApplicationContext();
+        mApplication = application;
+        mUiHandler = new UiHandler(mContext);
+        mAppUtils = new AppUtils(mContext);
         mGlobalConsole = createGlobalConsole();
-        mNotificationObserver = new AccessibilityNotificationObserver(context);
-        mAccessibilityInfoProvider = new AccessibilityInfoProvider(context.getPackageManager());
+        mNotificationObserver = new AccessibilityNotificationObserver(mContext);
+        mAccessibilityInfoProvider = new AccessibilityInfoProvider(mContext.getPackageManager());
         mScriptEngineService = buildScriptEngineService();
         init();
     }
@@ -85,7 +91,9 @@ public abstract class AutoJs {
 
     public abstract void ensureAccessibilityServiceEnabled();
 
-    protected abstract Application getApplication();
+    protected Application getApplication() {
+        return mApplication;
+    }
 
     protected ScriptEngineService buildScriptEngineService() {
         initScriptEngineManager();
diff --git a/autojs/src/main/java/com/stardust/autojs/core/graphics/Canvas.java b/autojs/src/main/java/com/stardust/autojs/core/graphics/Canvas.java
new file mode 100644
index 00000000..f305f111
--- /dev/null
+++ b/autojs/src/main/java/com/stardust/autojs/core/graphics/Canvas.java
@@ -0,0 +1,463 @@
+package com.stardust.autojs.core.graphics;
+
+import android.graphics.Bitmap;
+import android.graphics.DrawFilter;
+import android.graphics.Matrix;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.Picture;
+import android.graphics.PorterDuff;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.graphics.Region;
+import android.os.Build;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.annotation.RequiresApi;
+
+import com.stardust.autojs.core.image.ImageWrapper;
+import com.stardust.autojs.runtime.ScriptRuntime;
+import com.stardust.autojs.runtime.exception.ScriptException;
+
+/**
+ * Created by Stardust on 2018/3/22.
+ */
+
+public class Canvas {
+
+    private final android.graphics.Canvas mCanvas;
+
+    public Canvas(android.graphics.Canvas canvas) {
+        mCanvas = canvas;
+    }
+
+    public Canvas(@NonNull Bitmap bitmap) {
+        mCanvas = new android.graphics.Canvas(bitmap);
+    }
+
+    public Canvas(@NonNull ImageWrapper image) {
+        this(image.getBitmap());
+    }
+
+    public boolean isHardwareAccelerated() {
+        return mCanvas.isHardwareAccelerated();
+    }
+
+    public void setBitmap(@Nullable Bitmap bitmap) {
+        mCanvas.setBitmap(bitmap);
+    }
+
+    public boolean isOpaque() {
+        return mCanvas.isOpaque();
+    }
+
+    public int getWidth() {
+        return mCanvas.getWidth();
+    }
+
+    public int getHeight() {
+        return mCanvas.getHeight();
+    }
+
+    public int getDensity() {
+        return mCanvas.getDensity();
+    }
+
+    public void setDensity(int density) {
+        mCanvas.setDensity(density);
+    }
+
+    public int getMaximumBitmapWidth() {
+        return mCanvas.getMaximumBitmapWidth();
+    }
+
+    public int getMaximumBitmapHeight() {
+        return mCanvas.getMaximumBitmapHeight();
+    }
+
+    public int save() {
+        return mCanvas.save();
+    }
+
+    public int save(int saveFlags) {
+        return mCanvas.save(saveFlags);
+    }
+
+    public int saveLayer(@Nullable RectF bounds, @Nullable Paint paint, int saveFlags) {
+        return mCanvas.saveLayer(bounds, paint, saveFlags);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
+    public int saveLayer(@Nullable RectF bounds, @Nullable Paint paint) {
+        ScriptRuntime.requiresApi(Build.VERSION_CODES.LOLLIPOP);
+        return mCanvas.saveLayer(bounds, paint);
+    }
+
+    public int saveLayer(float left, float top, float right, float bottom, @Nullable Paint paint, int saveFlags) {
+        return mCanvas.saveLayer(left, top, right, bottom, paint, saveFlags);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
+    public int saveLayer(float left, float top, float right, float bottom, @Nullable Paint paint) {
+        ScriptRuntime.requiresApi(Build.VERSION_CODES.LOLLIPOP);
+        return mCanvas.saveLayer(left, top, right, bottom, paint);
+    }
+
+    public int saveLayerAlpha(@Nullable RectF bounds, int alpha, int saveFlags) {
+        return mCanvas.saveLayerAlpha(bounds, alpha, saveFlags);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
+    public int saveLayerAlpha(@Nullable RectF bounds, int alpha) {
+        ScriptRuntime.requiresApi(Build.VERSION_CODES.LOLLIPOP);
+        return mCanvas.saveLayerAlpha(bounds, alpha);
+    }
+
+    public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, int saveFlags) {
+        return mCanvas.saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
+    public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha) {
+        ScriptRuntime.requiresApi(Build.VERSION_CODES.LOLLIPOP);
+        return mCanvas.saveLayerAlpha(left, top, right, bottom, alpha);
+    }
+
+    public void restore() {
+        mCanvas.restore();
+    }
+
+    public int getSaveCount() {
+        return mCanvas.getSaveCount();
+    }
+
+    public void restoreToCount(int saveCount) {
+        mCanvas.restoreToCount(saveCount);
+    }
+
+    public void translate(float dx, float dy) {
+        mCanvas.translate(dx, dy);
+    }
+
+    public void scale(float sx, float sy) {
+        mCanvas.scale(sx, sy);
+    }
+
+    public void scale(float sx, float sy, float px, float py) {
+        mCanvas.scale(sx, sy, px, py);
+    }
+
+    public void rotate(float degrees) {
+        mCanvas.rotate(degrees);
+    }
+
+    public void rotate(float degrees, float px, float py) {
+        mCanvas.rotate(degrees, px, py);
+    }
+
+    public void skew(float sx, float sy) {
+        mCanvas.skew(sx, sy);
+    }
+
+    public void concat(@Nullable Matrix matrix) {
+        mCanvas.concat(matrix);
+    }
+
+    public void setMatrix(@Nullable Matrix matrix) {
+        mCanvas.setMatrix(matrix);
+    }
+
+    @Deprecated
+    public void getMatrix(@NonNull Matrix ctm) {
+        mCanvas.getMatrix(ctm);
+    }
+
+    @Deprecated
+    public Matrix getMatrix() {
+        return mCanvas.getMatrix();
+    }
+
+    public boolean clipRect(@NonNull RectF rect, @NonNull Region.Op op) {
+        return mCanvas.clipRect(rect, op);
+    }
+
+    public boolean clipRect(@NonNull Rect rect, @NonNull Region.Op op) {
+        return mCanvas.clipRect(rect, op);
+    }
+
+    public boolean clipRect(@NonNull RectF rect) {
+        return mCanvas.clipRect(rect);
+    }
+
+    public boolean clipRect(@NonNull Rect rect) {
+        return mCanvas.clipRect(rect);
+    }
+
+    public boolean clipRect(float left, float top, float right, float bottom, @NonNull Region.Op op) {
+        return mCanvas.clipRect(left, top, right, bottom, op);
+    }
+
+    public boolean clipRect(float left, float top, float right, float bottom) {
+        return mCanvas.clipRect(left, top, right, bottom);
+    }
+
+    public boolean clipRect(int left, int top, int right, int bottom) {
+        return mCanvas.clipRect(left, top, right, bottom);
+    }
+
+    public boolean clipPath(@NonNull Path path, @NonNull Region.Op op) {
+        return mCanvas.clipPath(path, op);
+    }
+
+    public boolean clipPath(@NonNull Path path) {
+        return mCanvas.clipPath(path);
+    }
+
+    @Deprecated
+    public boolean clipRegion(Region region, Region.Op op) {
+        return mCanvas.clipRegion(region, op);
+    }
+
+    @Deprecated
+    public boolean clipRegion(Region region) {
+        return mCanvas.clipRegion(region);
+    }
+
+    public DrawFilter getDrawFilter() {
+        return mCanvas.getDrawFilter();
+    }
+
+    public void setDrawFilter(@Nullable DrawFilter filter) {
+        mCanvas.setDrawFilter(filter);
+    }
+
+    public boolean quickReject(@NonNull RectF rect, @NonNull android.graphics.Canvas.EdgeType type) {
+        return mCanvas.quickReject(rect, type);
+    }
+
+    public boolean quickReject(@NonNull Path path, @NonNull android.graphics.Canvas.EdgeType type) {
+        return mCanvas.quickReject(path, type);
+    }
+
+    public boolean quickReject(float left, float top, float right, float bottom, @NonNull android.graphics.Canvas.EdgeType type) {
+        return mCanvas.quickReject(left, top, right, bottom, type);
+    }
+
+    public boolean getClipBounds(@Nullable Rect bounds) {
+        return mCanvas.getClipBounds(bounds);
+    }
+
+    public Rect getClipBounds() {
+        return mCanvas.getClipBounds();
+    }
+
+    public void drawRGB(int r, int g, int b) {
+        mCanvas.drawRGB(r, g, b);
+    }
+
+    public void drawARGB(int a, int r, int g, int b) {
+        mCanvas.drawARGB(a, r, g, b);
+    }
+
+    public void drawColor(int color) {
+        mCanvas.drawColor(color);
+    }
+
+    public void drawColor(int color, @NonNull PorterDuff.Mode mode) {
+        mCanvas.drawColor(color, mode);
+    }
+
+    public void drawPaint(@NonNull Paint paint) {
+        mCanvas.drawPaint(paint);
+    }
+
+    public void drawPoints(float[] pts, int offset, int count, @NonNull Paint paint) {
+        mCanvas.drawPoints(pts, offset, count, paint);
+    }
+
+    public void drawPoints(@NonNull float[] pts, @NonNull Paint paint) {
+        mCanvas.drawPoints(pts, paint);
+    }
+
+    public void drawPoint(float x, float y, @NonNull Paint paint) {
+        mCanvas.drawPoint(x, y, paint);
+    }
+
+    public void drawLine(float startX, float startY, float stopX, float stopY, @NonNull Paint paint) {
+        mCanvas.drawLine(startX, startY, stopX, stopY, paint);
+    }
+
+    public void drawLines(@NonNull float[] pts, int offset, int count, @NonNull Paint paint) {
+        mCanvas.drawLines(pts, offset, count, paint);
+    }
+
+    public void drawLines(@NonNull float[] pts, @NonNull Paint paint) {
+        mCanvas.drawLines(pts, paint);
+    }
+
+    public void drawRect(@NonNull RectF rect, @NonNull Paint paint) {
+        mCanvas.drawRect(rect, paint);
+    }
+
+    public void drawRect(@NonNull Rect r, @NonNull Paint paint) {
+        mCanvas.drawRect(r, paint);
+    }
+
+    public void drawRect(float left, float top, float right, float bottom, @NonNull Paint paint) {
+        mCanvas.drawRect(left, top, right, bottom, paint);
+    }
+
+    public void drawOval(@NonNull RectF oval, @NonNull Paint paint) {
+        mCanvas.drawOval(oval, paint);
+    }
+
+    public void drawOval(float left, float top, float right, float bottom, @NonNull Paint paint) {
+        mCanvas.drawOval(left, top, right, bottom, paint);
+    }
+
+    public void drawCircle(float cx, float cy, float radius, @NonNull Paint paint) {
+        mCanvas.drawCircle(cx, cy, radius, paint);
+    }
+
+    public void drawArc(@NonNull RectF oval, float startAngle, float sweepAngle, boolean useCenter, @NonNull Paint paint) {
+        mCanvas.drawArc(oval, startAngle, sweepAngle, useCenter, paint);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
+    public void drawArc(float left, float top, float right, float bottom, float startAngle, float sweepAngle, boolean useCenter, @NonNull Paint paint) {
+        ScriptRuntime.requiresApi(Build.VERSION_CODES.LOLLIPOP);
+        mCanvas.drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
+    }
+
+
+    public void drawRoundRect(@NonNull RectF rect, float rx, float ry, @NonNull Paint paint) {
+        mCanvas.drawRoundRect(rect, rx, ry, paint);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
+    public void drawRoundRect(float left, float top, float right, float bottom, float rx, float ry, @NonNull Paint paint) {
+        ScriptRuntime.requiresApi(Build.VERSION_CODES.LOLLIPOP);
+        mCanvas.drawRoundRect(left, top, right, bottom, rx, ry, paint);
+    }
+
+    public void drawPath(@NonNull Path path, @NonNull Paint paint) {
+        mCanvas.drawPath(path, paint);
+    }
+
+    public void drawBitmap(@NonNull Bitmap bitmap, float left, float top, @Nullable Paint paint) {
+        mCanvas.drawBitmap(bitmap, left, top, paint);
+    }
+
+    public void drawBitmap(@NonNull Bitmap bitmap, @Nullable Rect src, @NonNull RectF dst, @Nullable Paint paint) {
+        mCanvas.drawBitmap(bitmap, src, dst, paint);
+    }
+
+    public void drawBitmap(@NonNull Bitmap bitmap, @Nullable Rect src, @NonNull Rect dst, @Nullable Paint paint) {
+        mCanvas.drawBitmap(bitmap, src, dst, paint);
+    }
+
+    @Deprecated
+    public void drawBitmap(@NonNull int[] colors, int offset, int stride, float x, float y, int width, int height, boolean hasAlpha, @Nullable Paint paint) {
+        mCanvas.drawBitmap(colors, offset, stride, x, y, width, height, hasAlpha, paint);
+    }
+
+    @Deprecated
+    public void drawBitmap(@NonNull int[] colors, int offset, int stride, int x, int y, int width, int height, boolean hasAlpha, @Nullable Paint paint) {
+        mCanvas.drawBitmap(colors, offset, stride, x, y, width, height, hasAlpha, paint);
+    }
+
+    public void drawBitmap(@NonNull Bitmap bitmap, @NonNull Matrix matrix, @Nullable Paint paint) {
+        mCanvas.drawBitmap(bitmap, matrix, paint);
+    }
+
+    public void drawBitmapMesh(@NonNull Bitmap bitmap, int meshWidth, int meshHeight, @NonNull float[] verts, int vertOffset, @Nullable int[] colors, int colorOffset, @Nullable Paint paint) {
+        mCanvas.drawBitmapMesh(bitmap, meshWidth, meshHeight, verts, vertOffset, colors, colorOffset, paint);
+    }
+
+    public void drawVertices(@NonNull android.graphics.Canvas.VertexMode mode, int vertexCount, @NonNull float[] verts, int vertOffset, @Nullable float[] texs, int texOffset, @Nullable int[] colors, int colorOffset, @Nullable short[] indices, int indexOffset, int indexCount, @NonNull Paint paint) {
+        mCanvas.drawVertices(mode, vertexCount, verts, vertOffset, texs, texOffset, colors, colorOffset, indices, indexOffset, indexCount, paint);
+    }
+
+    public void drawText(@NonNull char[] text, int index, int count, float x, float y, @NonNull Paint paint) {
+        mCanvas.drawText(text, index, count, x, y, paint);
+    }
+
+    public void drawText(@NonNull String text, float x, float y, @NonNull Paint paint) {
+        mCanvas.drawText(text, x, y, paint);
+    }
+
+    public void drawText(@NonNull String text, int start, int end, float x, float y, @NonNull Paint paint) {
+        mCanvas.drawText(text, start, end, x, y, paint);
+    }
+
+    public void drawText(@NonNull CharSequence text, int start, int end, float x, float y, @NonNull Paint paint) {
+        mCanvas.drawText(text, start, end, x, y, paint);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    public void drawTextRun(@NonNull char[] text, int index, int count, int contextIndex, int contextCount, float x, float y, boolean isRtl, @NonNull Paint paint) {
+        ScriptRuntime.requiresApi(Build.VERSION_CODES.M);
+        mCanvas.drawTextRun(text, index, count, contextIndex, contextCount, x, y, isRtl, paint);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    public void drawTextRun(@NonNull CharSequence text, int start, int end, int contextStart, int contextEnd, float x, float y, boolean isRtl, @NonNull Paint paint) {
+        ScriptRuntime.requiresApi(Build.VERSION_CODES.M);
+        mCanvas.drawTextRun(text, start, end, contextStart, contextEnd, x, y, isRtl, paint);
+    }
+
+    @Deprecated
+    public void drawPosText(@NonNull char[] text, int index, int count, @NonNull float[] pos, @NonNull Paint paint) {
+        mCanvas.drawPosText(text, index, count, pos, paint);
+    }
+
+    @Deprecated
+    public void drawPosText(@NonNull String text, @NonNull float[] pos, @NonNull Paint paint) {
+        mCanvas.drawPosText(text, pos, paint);
+    }
+
+    public void drawTextOnPath(@NonNull char[] text, int index, int count, @NonNull Path path, float hOffset, float vOffset, @NonNull Paint paint) {
+        mCanvas.drawTextOnPath(text, index, count, path, hOffset, vOffset, paint);
+    }
+
+    public void drawTextOnPath(@NonNull String text, @NonNull Path path, float hOffset, float vOffset, @NonNull Paint paint) {
+        mCanvas.drawTextOnPath(text, path, hOffset, vOffset, paint);
+    }
+
+    public void drawPicture(@NonNull Picture picture) {
+        mCanvas.drawPicture(picture);
+    }
+
+    public void drawPicture(@NonNull Picture picture, @NonNull RectF dst) {
+        mCanvas.drawPicture(picture, dst);
+    }
+
+    public void drawPicture(@NonNull Picture picture, @NonNull Rect dst) {
+        mCanvas.drawPicture(picture, dst);
+    }
+
+    public void drawImage(@NonNull ImageWrapper image, float left, float top, @Nullable Paint paint) {
+        mCanvas.drawBitmap(image.getBitmap(), left, top, paint);
+    }
+
+    public void drawImage(@NonNull ImageWrapper image, float left, float top, float width, float height, @Nullable Paint paint) {
+        mCanvas.drawBitmap(image.getBitmap(), null, new RectF(left, top, left + width, top + height), paint);
+    }
+
+    public void drawImage(@NonNull ImageWrapper image, int sx, int sy, int swidth, int sheight, float left, float top, float width, float height, @Nullable Paint paint) {
+        mCanvas.drawBitmap(image.getBitmap(), new Rect(sx, sy, sx + swidth, sy + sheight),
+                new RectF(left, top, left + width, top + height), paint);
+    }
+
+    public void drawImage(@NonNull ImageWrapper image, @Nullable Rect src, @NonNull RectF dst, @Nullable Paint paint) {
+        mCanvas.drawBitmap(image.getBitmap(), src, dst, paint);
+    }
+
+    public void drawImage(@NonNull ImageWrapper image, @Nullable Rect src, @NonNull Rect dst, @Nullable Paint paint) {
+        mCanvas.drawBitmap(image.getBitmap(), src, dst, paint);
+    }
+
+    public void drawImage(@NonNull ImageWrapper image, @NonNull Matrix matrix, @Nullable Paint paint) {
+        mCanvas.drawBitmap(image.getBitmap(), matrix, paint);
+    }
+}
diff --git a/autojs/src/main/java/com/stardust/autojs/runtime/ScriptRuntime.java b/autojs/src/main/java/com/stardust/autojs/runtime/ScriptRuntime.java
index 55de154c..ac95f3c0 100644
--- a/autojs/src/main/java/com/stardust/autojs/runtime/ScriptRuntime.java
+++ b/autojs/src/main/java/com/stardust/autojs/runtime/ScriptRuntime.java
@@ -6,6 +6,7 @@ import android.os.Looper;
 import android.view.MotionEvent;
 import android.view.View;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.R;
 import com.stardust.autojs.ScriptEngineService;
 import com.stardust.autojs.annotation.ScriptVariable;
@@ -303,9 +304,9 @@ public class ScriptRuntime {
         return Thread.currentThread().isInterrupted();
     }
 
-    public void requiresApi(int i) {
+    public static void requiresApi(int i) {
         if (Build.VERSION.SDK_INT < i) {
-            throw new ScriptException(uiHandler.getContext().getString(R.string.text_requires_sdk_version_to_run_the_script) + SdkVersionUtil.sdkIntToString(i));
+            throw new ScriptException(GlobalAppContext.getString(R.string.text_requires_sdk_version_to_run_the_script) + SdkVersionUtil.sdkIntToString(i));
         }
     }
 
diff --git a/common/src/main/java/com/stardust/app/GlobalAppContext.java b/common/src/main/java/com/stardust/app/GlobalAppContext.java
new file mode 100644
index 00000000..ae5c9952
--- /dev/null
+++ b/common/src/main/java/com/stardust/app/GlobalAppContext.java
@@ -0,0 +1,77 @@
+package com.stardust.app;
+
+import android.annotation.SuppressLint;
+import android.app.Application;
+import android.content.Context;
+import android.os.Build;
+import android.os.Handler;
+import android.os.Looper;
+import android.support.annotation.RequiresApi;
+import android.widget.Toast;
+
+/**
+ * Created by Stardust on 2018/3/22.
+ */
+
+public class GlobalAppContext {
+
+    @SuppressLint("StaticFieldLeak")
+    private static Context sApplicationContext;
+    private static Handler sHandler;
+
+    public static void set(Application a) {
+        if (sApplicationContext != null)
+            throw new IllegalStateException();
+        sHandler = new Handler(Looper.getMainLooper());
+        sApplicationContext = a.getApplicationContext();
+    }
+
+    public static Context get() {
+        if (sApplicationContext == null)
+            throw new IllegalStateException("Call GlobalAppContext.set() to set a application context");
+        return sApplicationContext;
+    }
+
+    public static String getString(int resId) {
+        return get().getString(resId);
+    }
+
+    public static String getString(int resId, Object... formatArgs) {
+        return get().getString(resId, formatArgs);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    public static int getColor(int id) {
+        return get().getColor(id);
+    }
+
+    public static void toast(final String message) {
+        if (Looper.myLooper() == Looper.getMainLooper()) {
+            Toast.makeText(get(), message, Toast.LENGTH_SHORT).show();
+            return;
+        }
+        sHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                Toast.makeText(get(), message, Toast.LENGTH_SHORT).show();
+            }
+        });
+    }
+
+    public static void toast(final int resId) {
+        if (Looper.myLooper() == Looper.getMainLooper()) {
+            Toast.makeText(get(), resId, Toast.LENGTH_SHORT).show();
+            return;
+        }
+        sHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                Toast.makeText(get(), resId, Toast.LENGTH_SHORT).show();
+            }
+        });
+    }
+
+    public static void post(Runnable r) {
+        sHandler.post(r);
+    }
+}
diff --git a/inrt/src/main/java/com/stardust/auojs/inrt/App.java b/inrt/src/main/java/com/stardust/auojs/inrt/App.java
index 0aa175b3..f62e8994 100644
--- a/inrt/src/main/java/com/stardust/auojs/inrt/App.java
+++ b/inrt/src/main/java/com/stardust/auojs/inrt/App.java
@@ -10,6 +10,7 @@ import android.widget.ImageView;
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.request.target.SimpleTarget;
 import com.bumptech.glide.request.transition.Transition;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.auojs.inrt.autojs.AutoJs;
 import com.stardust.auojs.inrt.autojs.GlobalKeyObserver;
 import com.stardust.autojs.core.ui.inflater.ImageLoader;
@@ -21,16 +22,11 @@ import com.stardust.autojs.core.ui.inflater.util.Drawables;
 
 public class App extends Application {
 
-    private static App sApp;
-
-    public static App getApp() {
-        return sApp;
-    }
 
     @Override
     public void onCreate() {
         super.onCreate();
-        sApp = this;
+        GlobalAppContext.set(this);
         AutoJs.initInstance(this);
         GlobalKeyObserver.init();
         Drawables.setDefaultImageLoader(new ImageLoader() {
diff --git a/inrt/src/main/java/com/stardust/auojs/inrt/Pref.java b/inrt/src/main/java/com/stardust/auojs/inrt/Pref.java
index 7b19237b..7bc32f18 100644
--- a/inrt/src/main/java/com/stardust/auojs/inrt/Pref.java
+++ b/inrt/src/main/java/com/stardust/auojs/inrt/Pref.java
@@ -3,6 +3,8 @@ package com.stardust.auojs.inrt;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
 
+import com.stardust.app.GlobalAppContext;
+
 /**
  * Created by Stardust on 2017/12/8.
  */
@@ -14,7 +16,7 @@ public class Pref {
 
     public static SharedPreferences getPreferences() {
         if (sPreferences == null)
-            sPreferences = PreferenceManager.getDefaultSharedPreferences(App.getApp());
+            sPreferences = PreferenceManager.getDefaultSharedPreferences(GlobalAppContext.get());
         return sPreferences;
     }
 
@@ -23,7 +25,7 @@ public class Pref {
     }
 
     private static String getString(int res) {
-        return App.getApp().getString(res);
+        return GlobalAppContext.getString(res);
     }
 
     public static boolean shouldEnableAccessibilityServiceByRoot() {
diff --git a/inrt/src/main/java/com/stardust/auojs/inrt/autojs/AccessibilityServiceTool.java b/inrt/src/main/java/com/stardust/auojs/inrt/autojs/AccessibilityServiceTool.java
index ceae8d6b..f2119adb 100644
--- a/inrt/src/main/java/com/stardust/auojs/inrt/autojs/AccessibilityServiceTool.java
+++ b/inrt/src/main/java/com/stardust/auojs/inrt/autojs/AccessibilityServiceTool.java
@@ -6,6 +6,7 @@ import android.content.Intent;
 import android.provider.Settings;
 import android.text.TextUtils;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.auojs.inrt.App;
 import com.stardust.autojs.core.util.ProcessShell;
 
@@ -45,7 +46,7 @@ public class AccessibilityServiceTool {
     }
 
     public static void goToAccessibilitySetting() {
-        App.getApp().startActivity(new Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
+        GlobalAppContext.get().startActivity(new Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
     }
 
 }
diff --git a/inrt/src/main/java/com/stardust/auojs/inrt/autojs/AutoJs.java b/inrt/src/main/java/com/stardust/auojs/inrt/autojs/AutoJs.java
index 7536b217..fb255594 100644
--- a/inrt/src/main/java/com/stardust/auojs/inrt/autojs/AutoJs.java
+++ b/inrt/src/main/java/com/stardust/auojs/inrt/autojs/AutoJs.java
@@ -3,6 +3,7 @@ package com.stardust.auojs.inrt.autojs;
 import android.app.Application;
 import android.content.Context;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.auojs.inrt.App;
 import com.stardust.auojs.inrt.LogActivity;
 import com.stardust.auojs.inrt.Pref;
@@ -27,12 +28,12 @@ public class AutoJs extends com.stardust.autojs.AutoJs {
         return instance;
     }
 
-    public static void initInstance(Context context) {
-        instance = new AutoJs(context);
+    public static void initInstance(Application application) {
+        instance = new AutoJs(application);
     }
 
-    private AutoJs(Context context) {
-        super(context);
+    private AutoJs(Application application) {
+        super(application);
     }
 
 
@@ -43,14 +44,14 @@ public class AutoJs extends com.stardust.autojs.AutoJs {
         }
         String errorMessage = null;
         if (AccessibilityServiceUtils.isAccessibilityServiceEnabled(getApplication(), AccessibilityService.class)) {
-            errorMessage = App.getApp().getString(R.string.text_auto_operate_service_enabled_but_not_running);
+            errorMessage = GlobalAppContext.getString(R.string.text_auto_operate_service_enabled_but_not_running);
         } else {
             if (Pref.shouldEnableAccessibilityServiceByRoot()) {
                 if (!AccessibilityServiceTool.enableAccessibilityServiceByRootAndWaitFor(getApplication(), 2000)) {
-                    errorMessage = App.getApp().getString(R.string.text_enable_accessibility_service_by_root_timeout);
+                    errorMessage = GlobalAppContext.getString(R.string.text_enable_accessibility_service_by_root_timeout);
                 }
             } else {
-                errorMessage = App.getApp().getString(R.string.text_no_accessibility_permission);
+                errorMessage = GlobalAppContext.getString(R.string.text_no_accessibility_permission);
             }
         }
         if (errorMessage != null) {
@@ -66,14 +67,14 @@ public class AutoJs extends com.stardust.autojs.AutoJs {
         }
         String errorMessage = null;
         if (AccessibilityServiceUtils.isAccessibilityServiceEnabled(getApplication(), AccessibilityService.class)) {
-            errorMessage = App.getApp().getString(R.string.text_auto_operate_service_enabled_but_not_running);
+            errorMessage = GlobalAppContext.getString(R.string.text_auto_operate_service_enabled_but_not_running);
         } else {
             if (Pref.shouldEnableAccessibilityServiceByRoot()) {
                 if (!AccessibilityServiceTool.enableAccessibilityServiceByRootAndWaitFor(getApplication(), 2000)) {
-                    errorMessage = App.getApp().getString(R.string.text_enable_accessibility_service_by_root_timeout);
+                    errorMessage = GlobalAppContext.getString(R.string.text_enable_accessibility_service_by_root_timeout);
                 }
             } else {
-                errorMessage = App.getApp().getString(R.string.text_no_accessibility_permission);
+                errorMessage = GlobalAppContext.getString(R.string.text_no_accessibility_permission);
             }
         }
         if (errorMessage != null) {
@@ -84,11 +85,6 @@ public class AutoJs extends com.stardust.autojs.AutoJs {
         }
     }
 
-    @Override
-    protected Application getApplication() {
-        return App.getApp();
-    }
-
     @Override
     protected ScriptRuntime createRuntime() {
         ScriptRuntime runtime = super.createRuntime();
diff --git a/inrt/src/main/java/com/stardust/auojs/inrt/launch/GlobalProjectLauncher.java b/inrt/src/main/java/com/stardust/auojs/inrt/launch/GlobalProjectLauncher.java
index adf4bcff..ea8e5297 100644
--- a/inrt/src/main/java/com/stardust/auojs/inrt/launch/GlobalProjectLauncher.java
+++ b/inrt/src/main/java/com/stardust/auojs/inrt/launch/GlobalProjectLauncher.java
@@ -3,6 +3,7 @@ package com.stardust.auojs.inrt.launch;
 import android.app.Activity;
 import android.content.Context;
 
+import com.stardust.app.GlobalAppContext;
 import com.stardust.auojs.inrt.App;
 
 /**
@@ -15,7 +16,7 @@ public class GlobalProjectLauncher extends AssetsProjectLauncher {
 
     public static GlobalProjectLauncher getInstance() {
         if (sInstance == null)
-            sInstance = new GlobalProjectLauncher(App.getApp());
+            sInstance = new GlobalProjectLauncher(GlobalAppContext.get());
         return sInstance;
     }