内容uri在android jelly bean上崩溃相机（4.3）

Question

使用内容uri和android 4.3 jelly bean时遇到问题（API级别18） 这是我用来在设备上打开相机并录制视频的代码

完成录制并尝试保存我的视频后，显示我不幸停止了，任何解决方案

注意：我在logcat（第241行）中的问题行代码从此代码开始

mVideoURI = data.getData(); 

这是我的NullPointerException问题

  if (requestCode == VIDEO_CAPTURE && resultCode == RESULT_OK) {

        mVideoURI = data.getData();
        MediaMetadataRetriever mb = new MediaMetadataRetriever();
        mb.setDataSource(mVideoPath);
        Bitmap image = mb.getFrameAtTime();
        if (image != null) {
            messageList.add(new Message(mVideoURI, time, R.drawable.msg_status_gray_waiting, state, msgStatutSend, image));
            updateAdapter();
        }


    }

这是我的 logcat

04-01 17:57:03.384 16263-16263/com.example.android.task4 E/AndroidRuntime: FATAL EXCEPTION: main
                                                                       java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=101, result=-1, data=null} to activity {com.example.android.task4/com.example.android.task4.Main2ActivityChat}: java.lang.NullPointerException
                                                                           at android.app.ActivityThread.deliverResults(ActivityThread.java:3510)
                                                                           at android.app.ActivityThread.handleSendResult(ActivityThread.java:3553)
                                                                           at android.app.ActivityThread.access$1200(ActivityThread.java:165)
                                                                           at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1374)
                                                                           at android.os.Handler.dispatchMessage(Handler.java:99)
                                                                           at android.os.Looper.loop(Looper.java:137)
                                                                           at android.app.ActivityThread.main(ActivityThread.java:5455)
                                                                           at java.lang.reflect.Method.invokeNative(Native Method)
                                                                           at java.lang.reflect.Method.invoke(Method.java:525)
                                                                           at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1187)
                                                                           at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
                                                                           at dalvik.system.NativeStart.main(Native Method)
                                                                        Caused by: java.lang.NullPointerException
                                                                           at com.example.android.task4.Main2ActivityChat.onActivityResult(Main2ActivityChat.java:241)
                                                                           at android.app.Activity.dispatchActivityResult(Activity.java:5563)
                                                                           at android.app.ActivityThread.deliverResults(ActivityThread.java:3506)
                                                                           at android.app.ActivityThread.handleSendResult(ActivityThread.java:3553) 
                                                                           at android.app.ActivityThread.access$1200(ActivityThread.java:165) 
                                                                           at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1374) 
                                                                           at android.os.Handler.dispatchMessage(Handler.java:99) 
                                                                           at android.os.Looper.loop(Looper.java:137) 
                                                                           at android.app.ActivityThread.main(ActivityThread.java:5455) 
                                                                           at java.lang.reflect.Method.invokeNative(Native Method) 
                                                                           at java.lang.reflect.Method.invoke(Method.java:525) 
                                                                           at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1187) 
                                                                           at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003) 
                                                                           at dalvik.system.NativeStart.main(Native Method)