diff --git a/app/src/main/assets/help/documentation/需要Root权限的触摸与多点触摸.md b/app/src/main/assets/help/documentation/需要Root权限的触摸与多点触摸.md
index 2898bed5..c5877897 100644
--- a/app/src/main/assets/help/documentation/需要Root权限的触摸与多点触摸.md
+++ b/app/src/main/assets/help/documentation/需要Root权限的触摸与多点触摸.md
@@ -2,9 +2,8 @@
 
 RootAutomator是一个使用Root权限来模拟触摸的对象，用它可以完成触摸与多点触摸，并且这些动作的执行没有延迟。
 
-构造RootAutomator需要一个context参数。
 ```
-var ra = RootAutomator(context);
+var ra = RootAutomator();
 ```
 
 ### RootAutomator.tap(x, y\[, id\])
@@ -14,7 +13,7 @@ var ra = RootAutomator(context);
 
 点击位置(x, y)。其中id是一个整数值，用于区分多点触摸，不同的id表示不同的"手指"，例如：
 ```
-var ra = RootAutomator(context);
+var ra = RootAutomator();
 //让"手指1"点击位置(100, 100)
 ra.tap(100, 100, 1);
 //让"手指2"点击位置(200, 200);
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/main/MainActivity.java b/app/src/main/java/com/stardust/scriptdroid/ui/main/MainActivity.java
index 842cee11..e3d47ff7 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/main/MainActivity.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/main/MainActivity.java
@@ -326,22 +326,4 @@ public class MainActivity extends BaseActivity implements OnActivityResultDelega
         return mActivityResultMediator;
     }
 
-    public static void onRecordStop(Context context, String script) {
-        Intent intent = new Intent(context, MainActivity_.class)
-                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-                .putExtra(EXTRA_ACTION, ACTION_ON_RECORD_STOP);
-        IntentExtras.newExtras()
-                .put(ARGUMENT_SCRIPT, script)
-                .putInIntent(intent);
-        context.startActivity(intent);
-    }
-
-
-    public static void onRootRecordStop(Context context, String path) {
-        Intent intent = new Intent(context, MainActivity_.class)
-                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-                .putExtra(EXTRA_ACTION, ACTION_ON_ROOT_RECORD_STOP)
-                .putExtra(ARGUMENT_PATH, path);
-        context.startActivity(intent);
-    }
 }
\ No newline at end of file
diff --git a/autojs/src/main/assets/modules/__RootAutomator__.js b/autojs/src/main/assets/modules/__RootAutomator__.js
index 3bc1acf8..82a91ba4 100644
--- a/autojs/src/main/assets/modules/__RootAutomator__.js
+++ b/autojs/src/main/assets/modules/__RootAutomator__.js
@@ -1,12 +1,13 @@
 module.exports = function(__runtime__, scope){
     function RootAutomator(){
-         this.__ra__ = Object.create(new com.stardust.autojs.runtime.api.RootAutomator(scope.context));
+        this.__ra__ = Object.create(new com.stardust.autojs.runtime.api.RootAutomator(scope.context));
         var methods = ["sendEvent", "touch", "setScreenMetrics", "touchX", "touchY", "sendSync",  "sendMtSync", "tap",
             "swipe", "press", "longPress", "touchDown", "touchUp", "touchMove", "getDefaultId", "setDefaultId", "exit"];
         for(var i = 0; i < methods.length; i++){
             var method = methods[i];
             this[method] = this.__ra__[method].bind(this.__ra__);
         }
+        return this;
    }
     var p = RootAutomator.prototype;
     return RootAutomator;