タスクが残らないように修正。

ABVJE_Launcher_Android/AndroidManifest.xml

@@ -251,9 +251,11 @@
             android:theme="@style/Theme.AppCompat.Light.NoActionBar.FullScreen" >
         </activity>
 
-        <activity android:name="jp.agentec.abook.abv.ui.home.activity.ChatWebViewActivity" android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation"
+        <activity android:name="jp.agentec.abook.abv.ui.home.activity.ChatWebViewActivity"
+            android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation"
             android:taskAffinity=".ChatWebViewActivity"
             android:resizeableActivity="true"
+            android:excludeFromRecents="true"
             android:supportsPictureInPicture="true"/>
 
     </application>

ABVJE_UI_Android/src/jp/agentec/abook/abv/ui/home/activity/ChatWebViewActivity.java

@@ -112,6 +112,8 @@ public class ChatWebViewActivity extends CommunicationWebViewActivity implements
     private String selectedUserIdList;
     private String mSkey;
     private boolean isPIP;
+    private boolean startPIP = false; // PIPモードを開始していたらtrue;
+    private boolean needFinishOnStop = false;  // ×ボタンでPIP閉じた時用
     private boolean isStop;
     private String encodedFilePath;
 
@@ -794,7 +796,7 @@ public class ChatWebViewActivity extends CommunicationWebViewActivity implements
         } else {
             intent.setClass(ChatWebViewActivity.this, OperationListActivity.class);
         }
-        intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK);
+        intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
         intent.putExtra(AppDefType.ChatPushMessageKey.baseActivityName, ChatWebViewActivity.class.getName());
         startActivity(intent, NaviConsts.Left);
     }
@@ -806,17 +808,20 @@ public class ChatWebViewActivity extends CommunicationWebViewActivity implements
         }
     }
 
+    /**
+     * PIPモードから元にもどる
+     */
     public void finishPIPmode() {
-        if (!isPIP) { return; }
-        getApplication()
-                .startActivity(new Intent(this, ChatWebViewActivity.class)
-                        .addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_NEW_TASK)
-                );
-    }
-
-    public void startPIPmode() {
-        PictureInPictureParams.Builder mPipBuilder = new PictureInPictureParams.Builder();
-        enterPictureInPictureMode(mPipBuilder.build());
+        if (!isPIP) {
+            return;
+        }
+        if (startPIP) {
+            Intent intent = new Intent();
+            intent.setClass(this, ChatWebViewActivity.class);
+            intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
+            getApplication().startActivity(intent);
+            startPIP = false;
+        }
     }
 
     public void exitAndDeleteMeetingRoom() {
@@ -842,8 +847,6 @@ public class ChatWebViewActivity extends CommunicationWebViewActivity implements
         Intent intent = new Intent();
         intent.setClass(targetActivity, OperationRelatedContentActivity.class);
         intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
-        intent.putExtra("isCollaboration", true);
-        intent.putExtra("isCollaborationOwner", isOwner);
         targetActivity.startActivity(intent);
     }
     public void connectMeetingServer() throws Exception {
@@ -1013,6 +1016,19 @@ public class ChatWebViewActivity extends CommunicationWebViewActivity implements
     protected void onStop() {
         isStop = true;
         super.onStop();
+
+        if (needFinishOnStop) {
+            try {
+                chatData.finishCollaboration();
+            } catch (NetworkDisconnectedException e) {
+                e.printStackTrace();
+            } catch (AcmsException e) {
+                e.printStackTrace();
+            }
+            // PIPモードは、状態変化のイベントがonStopくらいしかない。なので、PIPの時は、ここでfinish()する
+            finish();
+            needFinishOnStop = false;
+        }
     }
 
     @Override
@@ -1248,8 +1264,7 @@ public class ChatWebViewActivity extends CommunicationWebViewActivity implements
 
     public int createContentView() {
         finishBeforeContentListActivity();
-        PictureInPictureParams.Builder mPipBuilder = new PictureInPictureParams.Builder();
-        enterPictureInPictureMode(mPipBuilder.build());
+        startPIPMode();
         Integer meetingId = null;
         meetingManager.close();
         try {
@@ -1272,8 +1287,7 @@ public class ChatWebViewActivity extends CommunicationWebViewActivity implements
 
     public void startContentView() {
         finishBeforeContentListActivity();
-        PictureInPictureParams.Builder mPipBuilder = new PictureInPictureParams.Builder();
-        enterPictureInPictureMode(mPipBuilder.build());
+        startPIPMode();
         meetingManager.close();
         try {
             connectMeetingServer();
@@ -1288,8 +1302,7 @@ public class ChatWebViewActivity extends CommunicationWebViewActivity implements
 
     public void joinMeetingRoom(int newMeetingId) {
         finishBeforeContentListActivity();
-        PictureInPictureParams.Builder mPipBuilder = new PictureInPictureParams.Builder();
-        enterPictureInPictureMode(mPipBuilder.build());
+        startPIPMode();
         meetingManager.close();
         try {
             connectMeetingServer();
@@ -1301,10 +1314,14 @@ public class ChatWebViewActivity extends CommunicationWebViewActivity implements
         }
         startContentListActivity(false);
     }
-
+    /**
+     * PIPモードに変更
+     */
     public void startPIPMode() {
         PictureInPictureParams.Builder mPipBuilder = new PictureInPictureParams.Builder();
         enterPictureInPictureMode(mPipBuilder.build());
+        needFinishOnStop = true;
+        startPIP = true;
     }
 
     public void exitPIPmode() {
@@ -1348,5 +1365,4 @@ public class ChatWebViewActivity extends CommunicationWebViewActivity implements
         // 最後のチャットのルーム
         PreferenceUtil.putUserPref(getApplicationContext(), AppDefType.UserPrefKey.CHAT_LAST_ROOMID, roomId);
     }
-
 }

ABVJE_UI_Android/src/jp/agentec/abook/abv/ui/home/helper/ActivityHandlingHelper.java

@@ -388,7 +388,7 @@ public class ActivityHandlingHelper extends ABookHelper implements RemoteObserve
         //資料が変更されたらPIPモードに更新する。
         ChatWebViewActivity chatWebViewActivity = getActivity(ChatWebViewActivity.class);
         if (chatWebViewActivity != null && meetingManager.isSubscribed() && !chatWebViewActivity.isInPictureInPictureMode()) {
-            chatWebViewActivity.startPIPmode();
+            chatWebViewActivity.startPIPMode();
         }
 
         if (!StringUtil.equalsAny(