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FlutterBoost 3.0出现 Activity无法转换为ExclusiveAppComponent＜Activity＞的解决办法

2022-07-30 00:35:00 【51CTO】

在使用FlutterBoost 3.0过程中，一不小心升级了flutter的版本，会出现下面问题：

/flutter_boost-master/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostActivity.java:167: 错误: 不兼容的类型: Activity无法转换为ExclusiveAppComponent
getFlutterEngine().getActivityControlSurface().attachToActivity(getActivity(), getLifecycle());

这是由于新版本的flutter 改动了api的原因，导致attachToActivity里面的参数转换出错；

       
       void attachToActivity(
       
      @NonNull ExclusiveAppComponent<Activity> exclusiveActivity, @NonNull Lifecycle lifecycle);
      
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flutterboost官方给出的临时解决方案如下：

       
       diff --git a/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostActivity.java b/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostActivity.java
       
index ab28533..1608eb5 100644
       
--- a/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostActivity.java
       
+++ b/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostActivity.java
       
@@ -152,7 +152,7 @@ public class FlutterBoostActivity extends FlutterActivity implements FlutterView
       
     private void performAttach() {
       
         if (!isAttached) {
       
             // Attach plugins to the activity.
       
-            getFlutterEngine().getActivityControlSurface().attachToActivity(getActivity(), getLifecycle());
       
+            getFlutterEngine().getActivityControlSurface().attachToActivity(delegate, getLifecycle());
       
             if (platformPlugin == null) {
       
                 platformPlugin = new PlatformPlugin(getActivity(), getFlutterEngine().getPlatformChannel());
       
diff --git a/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostFragment.java b/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostFragment.java
       
index b4ead66..5f954e6 100644
       
--- a/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostFragment.java
       
+++ b/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostFragment.java
       
@@ -43,6 +43,17 @@ public class FlutterBoostFragment extends FlutterFragment implements FlutterView
       
     private boolean isAttached = false;
       
     private boolean isFinishing = false;
       
+    class FakeExclusiveAppComponent implements io.flutter.embedding.android.ExclusiveAppComponent<Activity> {
       
+        public void detachFromFlutterEngine() {
       
+            // do nothing.
       
+        }
       
+
       
+        public Activity getAppComponent() {
       
+            return getActivity();
       
+        }
       
+    }
       
+    private FakeExclusiveAppComponent fakeAppComponent = new FakeExclusiveAppComponent();
       
+
       
     // @Override
       
     public void detachFromFlutterEngine() {
       
         /**
       
@@ -303,7 +314,7 @@ public class FlutterBoostFragment extends FlutterFragment implements FlutterView
       
     private void performAttach() {
       
         if (!isAttached) {
       
             // Attach plugins to the activity.
       
-            getFlutterEngine().getActivityControlSurface().attachToActivity(getActivity(), getLifecycle());
       
+            getFlutterEngine().getActivityControlSurface().attachToActivity(fakeAppComponent, getLifecycle());
       
             if (platformPlugin == null) {
       
                 platformPlugin = new PlatformPlugin(getActivity(), getFlutterEngine().getPlatformChannel());
      
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简化下就是：

FlutterBoostActivity中：

       
       //getFlutterEngine().getActivityControlSurface().attachToActivity(getActivity(), getLifecycle());
       
            getFlutterEngine().getActivityControlSurface().attachToActivity(delegate, getLifecycle());
      
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FlutterBoostFragment中：

       
       //getFlutterEngine().getActivityControlSurface().attachToActivity(getActivity(), getLifecycle());
       
            getFlutterEngine().getActivityControlSurface().attachToActivity(fakeAppComponent, getLifecycle());
       
class FakeExclusiveAppComponent implements io.flutter.embedding.android.ExclusiveAppComponent<Activity> {
       
        public void detachFromFlutterEngine() {}
       
        public Activity getAppComponent() {
       
                return getActivity();
       
        }
       
    }
       
private FakeExclusiveAppComponent fakeAppComponent 
       
       = new FakeExclusiveAppComponent();
      
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当前位置：网站首页>FlutterBoost 3.0出现 Activity无法转换为ExclusiveAppComponent＜Activity＞的解决办法

FlutterBoost 3.0出现 Activity无法转换为ExclusiveAppComponent＜Activity＞的解决办法

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