Add RecordingApplication

app/src/main/java/com/hippo/content/RecordingApplication.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright 2018 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.content;
+
+/*
+ * Created by Hippo on 2018/3/27.
+ */
+
+import android.app.Activity;
+import android.os.Bundle;
+import com.hippo.scene.SceneApplication;
+import java.lang.ref.WeakReference;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+
+public abstract class RecordingApplication extends SceneApplication {
+
+  private List<WeakReference<Activity>> list = new LinkedList<>();
+
+  @Override
+  public void onCreate() {
+    super.onCreate();
+
+    registerActivityLifecycleCallbacks(new ActivityLifecycleCallbacks() {
+      @Override
+      public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
+        list.add(new java.lang.ref.WeakReference<>(activity));
+      }
+
+      @Override
+      public void onActivityDestroyed(Activity activity) {
+        Iterator<WeakReference<Activity>> iterator = list.iterator();
+        while (iterator.hasNext()) {
+          WeakReference<Activity> reference = iterator.next();
+          Activity a = reference.get();
+          // Remove current activity and null
+          if (a == null || a == activity) {
+            iterator.remove();
+          }
+        }
+      }
+
+      @Override
+      public void onActivityStarted(Activity activity) {}
+
+      @Override
+      public void onActivityResumed(Activity activity) {}
+
+      @Override
+      public void onActivityPaused(Activity activity) {}
+
+      @Override
+      public void onActivityStopped(Activity activity) {}
+
+      @Override
+      public void onActivitySaveInstanceState(Activity activity, Bundle outState) {}
+    });
+  }
+
+  public void recreate() {
+    // Copy list
+    ArrayList<Activity> listCopy = new ArrayList<>(list.size());
+    for (WeakReference<Activity> reference: list) {
+      Activity activity = reference.get();
+      if (activity == null) continue;
+      listCopy.add(activity);
+    }
+
+    // Finish all activities
+    for (int i = listCopy.size() - 1; i >= 0; --i) {
+      listCopy.get(i).recreate();
+    }
+  }
+}