相机意图返回空

我想用默认相机使用意图从我的android应用程序捕获图像和视频。相机意图返回空

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

      startActivityForResult(intent, IMAGE_FROM_CAMERA);

使用上面的代码我试图捕捉图片，并在onActivityResult我在data.getData()

我通过开放的我们的意图试图获得空数据，但开放的我们变空。

相机意图无法在uri上写入图像。我需要uri发送带有电子邮件的图像视频。

错误日志

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

来源

2012-07-26 Krishnakant Dalal

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);

来源

2012-07-26 15:34:45 MAC

相机意图返回空

回答

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