diff --git a/app/src/main/java/org/autojs/autojs/external/shortcut/ShortcutManager.java b/app/src/main/java/org/autojs/autojs/external/shortcut/ShortcutManager.java
index 1666231e..d00a1031 100644
--- a/app/src/main/java/org/autojs/autojs/external/shortcut/ShortcutManager.java
+++ b/app/src/main/java/org/autojs/autojs/external/shortcut/ShortcutManager.java
@@ -14,6 +14,7 @@ import java.util.List;
  * Created by Stardust on 2017/10/25.
  */
 
+@RequiresApi(api = Build.VERSION_CODES.N_MR1)
 public class ShortcutManager {
 
     private static ShortcutManager sInstance;
diff --git a/app/src/main/java/org/autojs/autojs/pluginclient/DevPluginResponseHandler.java b/app/src/main/java/org/autojs/autojs/pluginclient/DevPluginResponseHandler.java
index 66386463..29f28966 100644
--- a/app/src/main/java/org/autojs/autojs/pluginclient/DevPluginResponseHandler.java
+++ b/app/src/main/java/org/autojs/autojs/pluginclient/DevPluginResponseHandler.java
@@ -15,6 +15,7 @@ import org.autojs.autojs.autojs.AutoJs;
 import org.autojs.autojs.model.script.Scripts;
 import org.autojs.autojs.storage.file.StorageFileProvider;
 
+import java.io.File;
 import java.util.HashMap;
 
 /**
@@ -98,7 +99,7 @@ public class DevPluginResponseHandler implements Handler {
         if (!name.endsWith(".js")) {
             name = name + ".js";
         }
-        PFiles.write(StorageFileProvider.getDefaultDirectoryPath() + name, script);
+        PFiles.write(new File(StorageFileProvider.getDefaultDirectoryPath(), name), script);
         GlobalAppContext.toast(R.string.text_script_save_successfully);
     }
 }
diff --git a/app/src/main/java/org/autojs/autojs/ui/doc/DocsFragment.java b/app/src/main/java/org/autojs/autojs/ui/doc/DocsFragment.java
index 36cc9987..3ddfbda7 100644
--- a/app/src/main/java/org/autojs/autojs/ui/doc/DocsFragment.java
+++ b/app/src/main/java/org/autojs/autojs/ui/doc/DocsFragment.java
@@ -35,6 +35,7 @@ public class DocsFragment extends ViewPagerFragment implements BackPressedHandle
     EWebView mEWebView;
     WebView mWebView;
 
+    private String mIndexUrl;
     private String mPreviousQuery;
 
 
@@ -52,14 +53,11 @@ public class DocsFragment extends ViewPagerFragment implements BackPressedHandle
     @AfterViews
     void setUpViews() {
         mWebView = mEWebView.getWebView();
-        mEWebView.getSwipeRefreshLayout().setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
-            @Override
-            public void onRefresh() {
-                if (TextUtils.equals(mWebView.getUrl(), mWebView.getOriginalUrl())) {
-                    loadUrl();
-                } else {
-                    mEWebView.onRefresh();
-                }
+        mEWebView.getSwipeRefreshLayout().setOnRefreshListener(() -> {
+            if (TextUtils.equals(mWebView.getUrl(), mIndexUrl)) {
+                loadUrl();
+            } else {
+                mEWebView.onRefresh();
             }
         });
         Bundle savedWebViewState = getArguments().getBundle("savedWebViewState");
@@ -71,8 +69,8 @@ public class DocsFragment extends ViewPagerFragment implements BackPressedHandle
     }
 
     private void loadUrl() {
-        String url = Pref.getDocumentationUrl() + "index.html";
-        mWebView.loadUrl(getArguments().getString(ARGUMENT_URL, url));
+        mIndexUrl = getArguments().getString(ARGUMENT_URL, Pref.getDocumentationUrl() + "index.html");
+        mWebView.loadUrl(mIndexUrl);
     }