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PORotating phone quickly 180 degrees, camera preview turns upside down
 

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  1. PORotating phone quickly 180 degrees, camera preview turns upside down
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    <p>I have a custom camera application. When I rotating the phone by 90, camera preview works fine. But when I rotate phone quickly 180 degree, camera preview turns upside down. Is there any solution...</p> <p>Here is my code below:</p> <pre><code>public class CustomCameraActivity extends Activity implements SurfaceHolder.Callback { Camera camera; SurfaceView surfaceView; SurfaceHolder surfaceHolder; boolean previewing = false; LayoutInflater controlInflater = null; private Sensor mOrientaion1; int cameraId = 0; public final String TAG = "CustomCamera"; private SensorManager sensorManager; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.main); context = this; sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE); mOrientaion1 = sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION); // setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); imageView = (ImageView) findViewById(R.id.imgError); getWindow().setFormat(PixelFormat.UNKNOWN); surfaceView = (SurfaceView) findViewById(R.id.camerapreview); surfaceHolder = surfaceView.getHolder(); surfaceHolder.addCallback(this); surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); controlInflater = LayoutInflater.from(getBaseContext()); View viewControl = controlInflater.inflate(R.layout.custom, null); LayoutParams layoutParamsControl = new LayoutParams( LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT); Button btn1 = (Button) viewControl.findViewById(R.id.Button01); Button btn2 = (Button) viewControl.findViewById(R.id.Button02); btn1.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // Toast.makeText(context, "1111111111111111111111111", // Toast.LENGTH_SHORT).show(); camera.takePicture(null, null, mPicture); Constant.rotationValueForCamera = Constant.rotationValue; } }); btn2.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // Toast.makeText(context, "22222222222222222222222222", // Toast.LENGTH_SHORT).show(); Log.e("0 imagePickerStatus", Constant.imagePickerStatus + ""); Constant.imagePickerStatus = 0; Log.e("0 imagePickerStatus", Constant.imagePickerStatus + ""); finish(); } }); this.addContentView(viewControl, layoutParamsControl); int ot = getResources().getConfiguration().orientation; if (Configuration.ORIENTATION_LANDSCAPE == ot) { imageView.setVisibility(View.GONE); Log.e("ori1111", "land"); } else { imageView.setVisibility(View.VISIBLE); Log.e("ori111", "port"); } } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); // Checks the orientation of the screen if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) { // Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show(); findViewById(R.id.Button01).setVisibility(View.VISIBLE); findViewById(R.id.Button02).setVisibility(View.VISIBLE); imageView.setVisibility(View.GONE); Log.e("ori", "land"); } else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT) { // Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show(); findViewById(R.id.Button01).setVisibility(View.INVISIBLE); findViewById(R.id.Button02).setVisibility(View.INVISIBLE); imageView.setVisibility(View.VISIBLE); Log.e("ori", "port"); } } public String getPollDeviceAttitude() { return Constant.rotationValueForCamera; } private SensorEventListener sensorEventListener = new SensorEventListener() { public void onAccuracyChanged(Sensor sensor, int accuracy) { } }; protected void onPause() { super.onPause(); sensorManager.unregisterListener(sensorEventListener); } @Override public void onResume() { super.onResume(); sensorManager.registerListener(sensorEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL); sensorManager.registerListener(sensorEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD), SensorManager.SENSOR_DELAY_NORMAL); sensorManager.registerListener(sensorEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION), SensorManager.SENSOR_DELAY_NORMAL); if (Constant.isCapturedOk) { Constant.isCapturedOk = false; finish(); } } PictureCallback mPicture = new PictureCallback() { @Override public void onPictureTaken(byte[] data, Camera camera) { Log.e("Camrera", "22222222222222222"); BitmapFactory.Options bfo = new BitmapFactory.Options(); bfo.inDither = false; // bfo.inJustDecodeBounds = true; bfo.inPurgeable = true; bfo.inTempStorage = new byte[16 * 1024]; Intent intent = new Intent(context, PreviewActivity.class); // intent.putExtra("data", data); Bitmap bitmapPicture = BitmapFactory.decodeByteArray(data, 0, data.length, bfo); Matrix matrix = new Matrix(); if (Constant.result == 180) { matrix.postRotate(270); } if (Constant.result == 270) { matrix.postRotate(180); } int height = bitmapPicture.getHeight(); int width = bitmapPicture.getWidth(); Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmapPicture, height, width, true); Bitmap rotatedBitmap = Bitmap.createBitmap(scaledBitmap, 0, 0, scaledBitmap.getWidth(), scaledBitmap.getHeight(), matrix, true); ByteArrayOutputStream blob = new ByteArrayOutputStream(); Log.e("Camrera1", "22222222222222222"); rotatedBitmap.compress(CompressFormat.JPEG, 50 /* ignored for PNG */, blob); byte[] bitmapdata = blob.toByteArray(); Constant.imageData = bitmapdata; Log.e("Camrera2", "22222222222222222"); startActivity(intent); } }; @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { if (previewing) { camera.stopPreview(); previewing = false; } if (camera != null) { try { camera.setPreviewDisplay(holder); camera.startPreview(); setCameraDisplayOrientation(this, cameraId, camera); previewing = true; } catch (Exception e) { e.printStackTrace(); } } } public static void setCameraDisplayOrientation(Activity activity, int cameraId, android.hardware.Camera camera) { android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo(); android.hardware.Camera.getCameraInfo(cameraId, info); int rotation = activity.getWindowManager().getDefaultDisplay() .getRotation(); int degrees = 0; switch (rotation) { case Surface.ROTATION_0: degrees = 0; Constant.result = 0; break; case Surface.ROTATION_90: degrees = 90; Constant.result = 90; break; case Surface.ROTATION_180: degrees = 180; Constant.result = 180; break; case Surface.ROTATION_270: degrees = 270; Constant.result = 270; break; } int result; if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { result = (info.orientation + degrees) % 360; result = (360 - result) % 360; // compensate the mirror } else { // back-facing result = (info.orientation - degrees + 360) % 360; } camera.setDisplayOrientation(result); } @Override public void surfaceCreated(SurfaceHolder holder) { camera = Camera.open(); } @Override public void surfaceDestroyed(SurfaceHolder holder) { camera.stopPreview(); camera.release(); camera = null; previewing = false; } @Override protected void onStop() { super.onStop(); Log.e("Tab", "Stoping"); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { return true; } return super.onKeyDown(keyCode, event); } </code></pre> <p>}</p> <p><img src="https://i.stack.imgur.com/ohbgr.png" alt="App crashes image"></p>
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    1. PTQuestion
    1. USMohammad Rajob
    1. USMohammad Rajob
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      1. PORotating phone quickly 180 degrees, camera preview turns upside down
      1. USfor3st
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    1. COsolution: don't do that. it's a hardware issue.
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      1. PORotating phone quickly 180 degrees, camera preview turns upside down
      1. USNikola
    2. CO@Nikola, so there is no solution for this problem?
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      1. PORotating phone quickly 180 degrees, camera preview turns upside down
      1. USMohammad Rajob
    3. COmaybe, i just don't think it has anything to do with your code.
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      1. PORotating phone quickly 180 degrees, camera preview turns upside down
      1. USNikola
 

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