我有一个用来用相机拍照的surfaceview类，我想知道如何将这个拍摄的图像发回调用它的类。我尝试通过不确定我是否正确实施的意图将图像发回。我的主类 onActivityResult 如下：
//WHAT TO DO WITH RESULT DATA FROM CAMERA
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == CAMERA_PIC_REQUEST && picCount < 5) {
//curPic = (Bitmap) data.getExtras().get("data");
curPic = (Bitmap) data.getExtras().get("files");
ImageView images = new ImageView(getApplicationContext());
//SET PICTURE TO NEW VIEW AND ANIMATE INTO POSITION
images.setImageBitmap(curPic);
//ADD TO PREVPICS LAYOUT
images.setPadding(3, 0, 0, 0);
showCase.addView(images);
badge.setImageBitmap(curPic);
//ADDS CLICK LISTENER TO EACH ELEMENT AND SETS ID
try{
Log.i("AFTER TAKING PIC", "PICCOUNT IS NOW:"+picCount);
showCase.getChildAt(picCount).setId(picCount);
images.setId(picCount);
showCase.getChildAt(picCount).setOnClickListener(btnListener);
images.setTag("pics");
//SAVE PITCTURE
savePic(curPic);
previewImages(picCount);
}catch(Exception e){Log.e("ERROR TAKING PIC", e.toString());}
}else
Toast.makeText(getApplicationContext(), "Unable to add more pictures", Toast.LENGTH_SHORT).show();
}
而surfaceview类如下：
public class SecondCamera extends Activity implements SurfaceHolder.Callback {
Camera camera;
SurfaceView surfaceView;
SurfaceHolder surfaceHolder;
boolean previewing = false;
LayoutInflater controlInflater = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second_cam);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
getWindow().setFormat(PixelFormat.UNKNOWN);
surfaceView = (SurfaceView) findViewById(R.id.surfaceView1);
surfaceHolder = surfaceView.getHolder();
surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
controlInflater = LayoutInflater.from(getBaseContext());
/*
* View viewControl = controlInflater.inflate(R.layout.control, null);
* LayoutParams layoutParamsControl = new
* LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
* this.addContentView(viewControl, layoutParamsControl);
*/
Button buttonTakePicture = (Button) findViewById(R.id.button1);
buttonTakePicture.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
camera.takePicture(myShutterCallback, myPictureCallback_RAW,
myPictureCallback_JPG);
}
});
}
ShutterCallback myShutterCallback = new ShutterCallback() {
@Override
public void onShutter() {
}
};
PictureCallback myPictureCallback_RAW = new PictureCallback() {
@Override
public void onPictureTaken(byte[] arg0, Camera arg1) {
}
};
PictureCallback myPictureCallback_JPG = new PictureCallback() {
@Override
public void onPictureTaken(byte[] rawImg, Camera arg1) {
Bitmap bitmapPicture = BitmapFactory.decodeByteArray(rawImg, 0, rawImg.length);
try {
Intent cameraIntent = new Intent();
cameraIntent.putExtra("files", bitmapPicture);
setResult(123, cameraIntent);
finish();
} catch (Exception e) {
Log.e("IMAGE CONVERT", e.toString());
}
}
};
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
if (previewing) {
camera.stopPreview();
previewing = false;
}
if (camera != null) {
try {
camera.setPreviewDisplay(surfaceHolder);
camera.startPreview();
previewing = true;
} catch (IOException e) {
e.printStackTrace();
}
}
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
camera = Camera.open();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
camera.stopPreview();
camera.release();
camera = null;
previewing = false;
}
}