解决泄漏问题

android/build.gradle

@@ -22,7 +22,7 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 29
     buildToolsVersion '28.0.3'
     defaultConfig {
         minSdkVersion 16

android/src/main/java/com/idlefish/flutterboost/containers/BoostFlutterActivity.java

@@ -21,6 +21,7 @@ import android.view.*;
 import android.widget.*;
 import com.idlefish.flutterboost.FlutterBoost;
 import com.idlefish.flutterboost.XFlutterView;
+import com.idlefish.flutterboost.XPlatformPlugin;
 import io.flutter.Log;
 import io.flutter.embedding.android.DrawableSplashScreen;
 import io.flutter.embedding.android.FlutterView;
@@ -439,12 +440,8 @@ public class BoostFlutterActivity extends Activity
 
     @Nullable
     @Override
-    public PlatformPlugin providePlatformPlugin(@Nullable Activity activity, @NonNull FlutterEngine flutterEngine) {
-        if (activity != null) {
-            return new PlatformPlugin(getActivity(), flutterEngine.getPlatformChannel());
-        } else {
-            return null;
-        }
+    public XPlatformPlugin providePlatformPlugin( @NonNull FlutterEngine flutterEngine) {
+        return new XPlatformPlugin( flutterEngine.getPlatformChannel());
     }
 
     /**

android/src/main/java/com/idlefish/flutterboost/containers/FlutterActivityAndFragmentDelegate.java

@@ -23,6 +23,7 @@ import java.util.Map;
 import com.idlefish.flutterboost.FlutterBoost;
 import com.idlefish.flutterboost.Utils;
 import com.idlefish.flutterboost.XFlutterView;
+import com.idlefish.flutterboost.XPlatformPlugin;
 import com.idlefish.flutterboost.interfaces.IFlutterViewContainer;
 import com.idlefish.flutterboost.interfaces.IOperateSyncer;
 import io.flutter.Log;
@@ -30,6 +31,7 @@ import io.flutter.app.FlutterActivity;
 import io.flutter.embedding.android.*;
 import io.flutter.embedding.engine.FlutterEngine;
 import io.flutter.embedding.engine.FlutterShellArgs;
+import io.flutter.embedding.engine.plugins.activity.ActivityControlSurface;
 import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding;
 import io.flutter.plugin.platform.PlatformPlugin;
 
@@ -39,7 +41,7 @@ public class FlutterActivityAndFragmentDelegate implements IFlutterViewContainer
 
 
     private static final String TAG = "FlutterActivityAndFragmentDelegate";
-
+    private  static int ACTIVITY_CONTROL_SURFACE_ATTACH_TO_ACTVITY_HASH_CODE=0;
     @NonNull
     private Host host;
     @Nullable
@@ -49,7 +51,7 @@ public class FlutterActivityAndFragmentDelegate implements IFlutterViewContainer
     @Nullable
     private XFlutterView flutterView;
     @Nullable
-    private PlatformPlugin platformPlugin;
+    private XPlatformPlugin platformPlugin;
 
     private boolean isFlutterEngineFromHost;
 
@@ -95,7 +97,7 @@ public class FlutterActivityAndFragmentDelegate implements IFlutterViewContainer
         // TODO(mattcarroll): the PlatformPlugin needs to be reimagined because it implicitly takes
         //                    control of the entire window. This is unacceptable for non-fullscreen
         //                    use-cases.
-        platformPlugin = host.providePlatformPlugin(host.getActivity(), flutterEngine);
+        platformPlugin = host.providePlatformPlugin(flutterEngine);
 
 
         host.configureFlutterEngine(flutterEngine);
@@ -129,13 +131,6 @@ public class FlutterActivityAndFragmentDelegate implements IFlutterViewContainer
         Log.v(TAG, "Creating FlutterView.");
 
 
-        flutterEngine.getActivityControlSurface().attachToActivity(
-                host.getActivity(),
-                host.getLifecycle()
-        );
-
-
-
         mSyncer = FlutterBoost.instance().containerManager().generateSyncer(this);
 
         ensureAlive();
@@ -176,13 +171,19 @@ public class FlutterActivityAndFragmentDelegate implements IFlutterViewContainer
         Log.v(TAG, "onResume()");
         ensureAlive();
         flutterEngine.getLifecycleChannel().appIsResumed();
-
-        flutterEngine.getActivityControlSurface().attachToActivity(
-                host.getActivity(),
-                host.getLifecycle()
-        );
+        if(ACTIVITY_CONTROL_SURFACE_ATTACH_TO_ACTVITY_HASH_CODE==0||
+                ACTIVITY_CONTROL_SURFACE_ATTACH_TO_ACTVITY_HASH_CODE!=this.host.getActivity().hashCode()){
+            flutterEngine.getActivityControlSurface().detachFromActivityForConfigChanges();
+            flutterEngine.getActivityControlSurface().attachToActivity(
+                    host.getActivity(),
+                    host.getLifecycle()
+            );
+            ACTIVITY_CONTROL_SURFACE_ATTACH_TO_ACTVITY_HASH_CODE=this.host.getActivity().hashCode();
+        }
 
 
+        if(platformPlugin!=null)
+            platformPlugin.attachToActivity( host.getActivity());
 
 
     }
@@ -191,7 +192,6 @@ public class FlutterActivityAndFragmentDelegate implements IFlutterViewContainer
     public void onPostResume() {
         Log.v(TAG, "onPostResume()");
         ensureAlive();
-//        Utils.setStatusBarLightMode(host.getActivity(), true);
 
     }
 
@@ -230,10 +230,15 @@ public class FlutterActivityAndFragmentDelegate implements IFlutterViewContainer
         // Null out the platformPlugin to avoid a possible retain cycle between the plugin, this Fragment,
         // and this Fragment's Activity.
         if (platformPlugin != null) {
-//            platformPlugin.destroy();
+            platformPlugin.detachActivity();
             platformPlugin = null;
         }
 
+        if(ACTIVITY_CONTROL_SURFACE_ATTACH_TO_ACTVITY_HASH_CODE!=0||
+                ACTIVITY_CONTROL_SURFACE_ATTACH_TO_ACTVITY_HASH_CODE==this.host.getActivity().hashCode()){
+            flutterEngine.getActivityControlSurface().detachFromActivityForConfigChanges();
+        }
+
         Utils.fixInputMethodManagerLeak(host.getActivity());
 
     }
@@ -461,7 +466,7 @@ public class FlutterActivityAndFragmentDelegate implements IFlutterViewContainer
          * Flutter experience should control system chrome.
          */
         @Nullable
-        PlatformPlugin providePlatformPlugin(@Nullable Activity activity, @NonNull FlutterEngine flutterEngine);
+        XPlatformPlugin providePlatformPlugin( @NonNull FlutterEngine flutterEngine);
 
         /**
          * Hook for the host to configure the {@link FlutterEngine} as desired.

android/src/main/java/com/idlefish/flutterboost/containers/FlutterFragment.java

@@ -16,6 +16,7 @@ import androidx.fragment.app.FragmentActivity;
 import com.idlefish.flutterboost.FlutterBoost;
 import com.idlefish.flutterboost.Utils;
 import com.idlefish.flutterboost.XFlutterView;
+import com.idlefish.flutterboost.XPlatformPlugin;
 import io.flutter.embedding.android.*;
 import io.flutter.embedding.engine.FlutterEngine;
 import io.flutter.embedding.engine.FlutterShellArgs;
@@ -467,12 +468,9 @@ public class FlutterFragment extends Fragment implements FlutterActivityAndFragm
 
     @Nullable
     @Override
-    public PlatformPlugin providePlatformPlugin(@Nullable Activity activity, @NonNull FlutterEngine flutterEngine) {
-        if (activity != null) {
-            return new PlatformPlugin(getActivity(), flutterEngine.getPlatformChannel());
-        } else {
-            return null;
-        }
+    public XPlatformPlugin providePlatformPlugin( @NonNull FlutterEngine flutterEngine) {
+        return new XPlatformPlugin(flutterEngine.getPlatformChannel());
+
     }
 
     /**