android 自定義相機畫面倒立解決方案

    有部分手機的影像是倒立的，如何解決這個問題呢？ 請看下面


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; 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;  
     }  
     camera.setDisplayOrientation(result);  
 }  
 @Override  
    public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {  
        // TODO Auto-generated method stub  
                     setCameraDisplayOrientation(this,0,camera)  


        }</pre>