我正在尝试使用我的Android应用程序中的相机开发.

问题是相机总是返回结果代码0,无论我是按完还是取消.

我使用的代码片段如下：

protected void startCameraActivity()

{

Log.i("MakeMachine", "startCameraActivity()" );

File file = new File( _path );

Uri outputFileUri = Uri.fromFile( file );

Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);

intent.putExtra( MediaStore.EXTRA_OUTPUT, outputFileUri );

startActivityForResult(intent, 0);

}

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data)

{

Log.i( "MakeMachine", "resultCode: " + resultCode );

switch( resultCode )

{

case 0:

Log.i( "MakeMachine", "User cancelled" );

break;

case -1:

Log.i( "MakeMachine", "User done" );

onPhotoTaken();

break;

}

}

logcat显示：

05-31 14:58:15.367: E/asset(29114): MAS: getAppPckgAndVerCode package: makemachine.android.examples === version 1

05-31 14:58:15.398: D/dalvikvm(29114): Trying to load lib lib_glossary.so 0x0

05-31 14:58:15.414: D/dalvikvm(29114): Added shared lib lib_glossary.so 0x0

05-31 14:58:26.125: I/MakeMachine(29114): ButtonClickHandler.onClick()

05-31 14:58:26.125: I/MakeMachine(29114): startCameraActivity()

05-31 14:58:26.507: W/IInputConnectionWrapper(29114): showStatusIcon on inactive InputConnection

05-31 14:58:36.375: I/MakeMachine(29114): User cancelled

05-31 14:58:36.375: I/MakeMachine(29114): resultCode: 0

05-31 14:58:50.945: I/MakeMachine(29114): ButtonClickHandler.onClick()

05-31 14:58:50.945: I/MakeMachine(29114): startCameraActivity()

05-31 14:58:51.429: W/IInputConnectionWrapper(29114): showStatusIcon on inactive InputConnection

05-31 14:59:01.554: I/MakeMachine(29114): User cancelled

05-31 14:59:01.554: I/MakeMachine(29114): resultCode: 0