解决registerPlugins 时候，必须attach activity

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

@@ -12,10 +12,12 @@ import io.flutter.embedding.android.FlutterView;
 import io.flutter.embedding.engine.FlutterEngine;
 import io.flutter.embedding.engine.FlutterShellArgs;
 import io.flutter.embedding.engine.dart.DartExecutor;
+import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding;
 import io.flutter.embedding.engine.plugins.shim.ShimPluginRegistry;
 import io.flutter.plugin.common.PluginRegistry;
 import io.flutter.view.FlutterMain;
 
+import java.lang.reflect.Method;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -27,8 +29,9 @@ public class NewFlutterBoost {
     private FlutterEngine mEngine;
     private Activity mCurrentActiveActivity;
     private PluginRegistry mRegistry;
-    static NewFlutterBoost sInstance = null;
+    private boolean hasRegistry=false;
 
+    static NewFlutterBoost sInstance = null;
 
     public static NewFlutterBoost instance() {
         if (sInstance == null) {
@@ -154,19 +157,11 @@ public class NewFlutterBoost {
                 FlutterMain.findAppBundlePath(),
                 "main"
         );
+
         flutterEngine.getDartExecutor().executeDartEntrypoint(entrypoint);
 
         mRegistry = new BoostPluginRegistry(createEngine());
 
-//        ((BoostPluginRegistry) mRegistry).currentActivity(mCurrentActiveActivity);
-
-        mPlatform.registerPlugins(mRegistry);
-
-        if(mPlatform.lifecycleListener!=null){
-            mPlatform.lifecycleListener.onPluginsRegistered();
-        }
-
-
     }
 
 
@@ -322,6 +317,25 @@ public class NewFlutterBoost {
 
     }
 
+    public void registerPlugins() {
+        if(!hasRegistry&&mRegistry!=null){
+            try {
+                Class clz = Class.forName("io.flutter.plugins.GeneratedPluginRegistrant");
+                Method method = clz.getDeclaredMethod("registerWith", PluginRegistry.class);
+                method.invoke(null, mRegistry);
+            } catch (Throwable t) {
+                throw new RuntimeException(t);
+            }
+
+            if(mPlatform.lifecycleListener!=null){
+                mPlatform.lifecycleListener.onPluginsRegistered();
+            }
+            hasRegistry=true;
+        }
+
+
+    }
+
     public FlutterEngine engineProvider() {
         return  mEngine;
     }

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

@@ -34,15 +34,7 @@ public abstract class Platform {
     }
 
 
-        public void registerPlugins(PluginRegistry registry) {
-        try {
-            Class clz = Class.forName("io.flutter.plugins.GeneratedPluginRegistrant");
-            Method method = clz.getDeclaredMethod("registerWith", PluginRegistry.class);
-            method.invoke(null, registry);
-        } catch (Throwable t) {
-            throw new RuntimeException(t);
-        }
-    }
+
 
 
 }

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

@@ -130,6 +130,12 @@ public class FlutterActivityAndFragmentDelegate  implements IFlutterViewContaine
     @NonNull
     View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
         Log.v(TAG, "Creating FlutterView.");
+        flutterEngine.getActivityControlSurface().attachToActivity(
+                host.getActivity(),
+                host.getLifecycle()
+        );
+        NewFlutterBoost.instance().registerPlugins();
+
 
         mSyncer = NewFlutterBoost.instance().containerManager().generateSyncer(this);
 
@@ -173,10 +179,15 @@ public class FlutterActivityAndFragmentDelegate  implements IFlutterViewContaine
         ensureAlive();
         flutterEngine.getLifecycleChannel().appIsResumed();
 
-        flutterEngine.getActivityControlSurface().attachToActivity(
-                host.getActivity(),
-                host.getLifecycle()
-        );
+        BoostPluginRegistry registry= (BoostPluginRegistry)NewFlutterBoost.instance().getPluginRegistry();
+        ActivityPluginBinding  binding=registry.getRegistrarAggregate().getActivityPluginBinding();
+        if(binding!=null&&(binding.getActivity()!=this.host.getActivity())){
+            flutterEngine.getActivityControlSurface().attachToActivity(
+                    host.getActivity(),
+                    host.getLifecycle()
+            );
+        }
+
     }