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According to Android Developer Site: after android 2.2 there is the function " setDisplayOrientation " to adjust the camera preview rotation. And also according to the Android Developer Site , we can find following source code. 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 ; break ; case Surface.ROTATION_90 : degrees = 90 ; break ; case Surface.ROTATION_180 : degrees = 180 ; break ; case Surface.ROTATION_270 : degrees = 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 ; } However, i can not work with some kind of Devices. Like Samsung Galaxy Y S5360, S5660 , YP-G1, YP-G70, etc Just part of machine not working, Galaxy Nexus, SII , or some high end device, it work fine. Does setDisplayOrientation not support , or the devices firmware is not ready? PS. All devices are Android 2.3.1 or above. Help.

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