PIPでjava.lang.IllegalStateExceptionが発生する問題対応

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

@@ -1324,10 +1324,12 @@ public class ChatWebViewActivity extends CommunicationWebViewActivity implements
      * PIPモードに変更
      */
     public void startPIPMode() {
+        if (!startPIP) {
             PictureInPictureParams.Builder mPipBuilder = new PictureInPictureParams.Builder();
             enterPictureInPictureMode(mPipBuilder.build());
             startPIP = true;
         }
+    }
 
     public void exitPIPmode() {
         finishPIPMode();