카메라 의도는 null을 반환합니다

Question

INTENT를 사용하여 기본 카메라를 사용하여 Android 응용 프로그램에서 이미지와 비디오를 캡처하려고합니다.

Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");

            startActivityForResult(intent, IMAGE_FROM_CAMERA);

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위의 코드를 사용하여 이미지를 캡처하려고 시도하고 onActivityResult에서 data.getData() 의 데이터에 null을 얻고 있습니다.

URI를 의도로 통과시켜 URI가 비어 있지 않게되었습니다.

카메라 의도는 URI에 이미지를 쓸 수 없습니다.전자 메일로 이미지 비디오를 보내는 URI가 필요합니다.

오류 로그

 07-26 21:16:54.125: E/AndroidRuntime(6142): java.lang.RuntimeException: Failure    delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { act=inline-data (has extras) }} to activity {com.cam/com.cam.CameraDemoActivity}: java.lang.NullPointerException
  07-26 21:16:54.125: E/AndroidRuntime(6142):   at android.app.ActivityThread.deliverResults(ActivityThread.java:3712)
  07-26 21:16:54.125: E/AndroidRuntime(6142):   at android.app.ActivityThread.handleSendResult(ActivityThread.java:3754)
07-26 21:16:54.125: E/AndroidRuntime(6142):     at android.app.ActivityThread.access$2800(ActivityThread.java:135)
07-26 21:16:54.125: E/AndroidRuntime(6142):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2162)
07-26 21:16:54.125: E/AndroidRuntime(6142):     at android.os.Handler.dispatchMessage(Handler.java:99)
07-26 21:16:54.125: E/AndroidRuntime(6142):     at android.os.Looper.loop(Looper.java:143)
07-26 21:16:54.125: E/AndroidRuntime(6142):     at android.app.ActivityThread.main(ActivityThread.java:4914)
07-26 21:16:54.125: E/AndroidRuntime(6142):     at java.lang.reflect.Method.invokeNative(Native Method)
07-26 21:16:54.125: E/AndroidRuntime(6142):     at java.lang.reflect.Method.invoke(Method.java:521)
07-26 21:16:54.125: E/AndroidRuntime(6142):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
07-26 21:16:54.125: E/AndroidRuntime(6142):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
  07-26 21:16:54.125: E/AndroidRuntime(6142):   at dalvik.system.NativeStart.main(Native Method)
   07-26 21:16:54.125: E/AndroidRuntime(6142): Caused by: java.lang.NullPointerException
   07-26 21:16:54.125: E/AndroidRuntime(6142):  at com.cam.CameraDemoActivity.onActivityResult(CameraDemoActivity.java:48)
  07-26 21:16:54.125: E/AndroidRuntime(6142):   at android.app.Activity.dispatchActivityResult(Activity.java:3931)
   07-26 21:16:54.125: E/AndroidRuntime(6142):  at android.app.ActivityThread.deliverResults(ActivityThread.java:3708)
   07-26 21:16:54.125: E/AndroidRuntime(6142):  ... 11 more

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Answer 1

Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
 File dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
 File output = new File(dir, "camerascript.png");
 cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT,Uri.fromFile(output));
startActivityForResult(cameraIntent, 1);

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