Fixed crash and activity leak

android/src/main/java/com/idlefish/flutterboost/BoostFlutterView.java

@@ -55,8 +55,6 @@ public class BoostFlutterView extends FrameLayout {
 
     private XFlutterView mFlutterView;
 
-    private PlatformPlugin mPlatformPlugin;
-
     private Bundle mArguments;
 
     private RenderingProgressCoverCreator mRenderingProgressCoverCreator;
@@ -116,8 +114,6 @@ public class BoostFlutterView extends FrameLayout {
             mArguments = new Bundle();
         }
 
-        mPlatformPlugin = new PlatformPlugin((Activity) getContext(), mFlutterEngine.getPlatformChannel());
-
         mFlutterView = new XFlutterView(getContext(), getRenderMode(), getTransparencyMode());
         addView(mFlutterView, new FrameLayout.LayoutParams(
                 ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
@@ -213,7 +209,6 @@ public class BoostFlutterView extends FrameLayout {
     @Override
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
-        mPlatformPlugin.onPostResume();
         ViewCompat.requestApplyInsets(this);
         getViewTreeObserver().addOnGlobalLayoutListener(mGlobalLayoutListener);
     }

android/src/main/java/com/idlefish/flutterboost/XFlutterView.java

@@ -168,8 +168,14 @@ public class XFlutterView extends FrameLayout {
   @Override
   protected void onConfigurationChanged(Configuration newConfig) {
     super.onConfigurationChanged(newConfig);
+    try {
       sendLocalesToFlutter(newConfig);
       sendUserSettingsToFlutter();
+    }catch (Throwable e){
+      Log.e(TAG, "onConfigurationChanged error ");
+
+    }
+
   }
 
   /**
@@ -462,6 +468,8 @@ public class XFlutterView extends FrameLayout {
         textInputPlugin
     );
     androidTouchProcessor = new AndroidTouchProcessor(this.flutterEngine.getRenderer());
+
+    if(accessibilityBridge==null){
       accessibilityBridge = new AccessibilityBridge(
               this,
               flutterEngine.getAccessibilityChannel(),
@@ -476,11 +484,15 @@ public class XFlutterView extends FrameLayout {
               accessibilityBridge.isAccessibilityEnabled(),
               accessibilityBridge.isTouchExplorationEnabled()
       );
+      textInputPlugin.getInputMethodManager().restartInput(this);
+
+    }
+
+
 
     // Inform the Android framework that it should retrieve a new InputConnection
     // now that an engine is attached.
     // TODO(mattcarroll): once this is proven to work, move this line ot TextInputPlugin
-    textInputPlugin.getInputMethodManager().restartInput(this);
 
     // Push View and Context related information from Android to Flutter.
     sendUserSettingsToFlutter();
@@ -511,7 +523,6 @@ public class XFlutterView extends FrameLayout {
     // signifies that this View does not process input (until a new engine is attached).
     // TODO(mattcarroll): once this is proven to work, move this line ot TextInputPlugin
     textInputPlugin.getInputMethodManager().restartInput(this);
-
     // Instruct our FlutterRenderer that we are no longer interested in being its RenderSurface.
     flutterEngine.getRenderer().detachFromRenderSurface();
     flutterEngine = null;
@@ -560,12 +571,15 @@ public class XFlutterView extends FrameLayout {
    * FlutterEngine must be non-null when this method is invoked.
    */
   private void sendUserSettingsToFlutter() {
+    if(flutterEngine!=null&&flutterEngine.getSettingsChannel()!=null){
       flutterEngine.getSettingsChannel().startMessage()
               .setTextScaleFactor(getResources().getConfiguration().fontScale)
               .setUse24HourFormat(DateFormat.is24HourFormat(getContext()))
               .send();
     }
 
+  }
+
   // TODO(mattcarroll): consider introducing a system channel for this communication instead of JNI
   private void sendViewportMetricsToFlutter() {
     Log.d(TAG, "sendViewportMetricsToFlutter()");