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私は画像を描くために使用されているSurfaceViewを持っていて、それらを電話のカメラからのライブフィードにオーバーレイしたいと思います。私はあなたがそれを実行する場合は、プレビューSurfaceView上の画像を1を見ることができるOverlay images onto camera preview surfaceview とhow to draw an overlay on a surfaceview used by camera on android画像をカメラプレビューSurfaceViewにオーバーレイし、保存する方法は？
public class TestCameraOverlayActivity extends Activity {
Bitmap bitmap;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
Preview mPreview = new Preview(this);
DrawOnTop mDraw = new DrawOnTop(this);
bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.icon);
setContentView(mPreview);
addContentView(mDraw, new LayoutParams (LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
}
class DrawOnTop extends View {
public DrawOnTop(Context context) {
super(context);
}
@Override
protected void onDraw(Canvas canvas) {
Paint paint = new Paint();
paint.setStyle(Paint.Style.STROKE);
paint.setColor(Color.BLACK);
canvas.drawText("Test Text", 10, 10, paint);
canvas.drawBitmap(bitmap, 0, 0, null);
super.onDraw(canvas);
}
}
class Preview extends SurfaceView implements SurfaceHolder.Callback {
SurfaceHolder mHolder;
Camera mCamera;
Preview(Context context) {
super(context);
// Install a SurfaceHolder.Callback so we get notified when the
// underlying surface is created and destroyed.
mHolder = getHolder();
mHolder.addCallback(this);
mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
public void surfaceCreated(SurfaceHolder holder) {
// The Surface has been created, acquire the camera and tell it where
// to draw.
mCamera = Camera.open();
try {
mCamera.setPreviewDisplay(holder);
} catch (IOException e) {
e.printStackTrace();
}
}
public void surfaceDestroyed(SurfaceHolder holder) {
// Surface will be destroyed when we return, so stop the preview.
// Because the CameraDevice object is not a shared resource, it's very
// important to release it when the activity is paused.
mCamera.stopPreview();
mCamera = null;
}
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
// Now that the size is known, set up the camera parameters and begin
// the preview.
Camera.Parameters parameters = mCamera.getParameters();
parameters.setPreviewSize(w, h);
mCamera.setParameters(parameters);
mCamera.startPreview();
}
}
}
を読みましたが、私の質問には、SDカードにJPEGとしてそれらを一緒に保存する方法です。フォーマット変換が必要な場合は、私は同時にそれらを保存することができますいくつかのアドバイスを与えることができますか？イメージを保存する私の部分的な解決
/** Handles data for jpeg picture */
PictureCallback jpegCallback = new PictureCallback() {
public void onPictureTaken(byte[] data, Camera camera) {
FileOutputStream outStream = null;
try {
// write to local sandbox file system
// outStream = CameraDemo.this.openFileOutput(String.format("%d.jpg",
System.currentTimeMillis()), 0);
// Or write to sdcard
outStream = new FileOutputStream(String.format("/sdcard/%d.jpg",
System.currentTimeMillis()));
outStream.write(data);
outStream.close();
Log.d(TAG, "onPictureTaken - wrote bytes: " + data.length);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
}
Log.d(TAG, "onPictureTaken - jpeg");
}
};