Android上的相机预览 - 三星Galaxy S上的奇怪

Question

在我的活动中,我在surfaceView上显示相机预览.它在Nexus One和HTC Desire上完美运行,但在三星Galaxy SI上看到奇怪的线条,奇怪的比例和所有三次.请参阅下面的截图.

问题似乎与此类似: Android上的相机预览 - 1.5版本的sdk上的奇怪行, 但没有任何评论有帮助.我试图交换相机参数的高度,宽度,但差别不大.

(旁注:我的活动始终处于横向模式,已修复.我在清单中将其修复为screenOrientation参数,以防万一).

我的SurfaceHolderCallback的代码(我活动中的相关内部类):

class SurfaceHolderCallback implements SurfaceHolder.Callback {
    private static final int IMAGE_WIDTH = 512;
    private static final int IMAGE_HEIGHT = 384;
    private static final String ORIENTATION = "orientation";
    private static final String ROTATION = "rotation";
    private static final String PORTRAIT = "portrait";
    private static final String LANDSCAPE = "landscape";

    public void surfaceCreated(SurfaceHolder holder) {
        camera = Camera.open(); 

        //Surface.setOrientation(Display.DEFAULT_DISPLAY,Surface.ROTATION_90);            
        Parameters p = camera.getParameters();
        p.setPictureSize(IMAGE_WIDTH, IMAGE_HEIGHT);
        p.set(ORIENTATION, PORTRAIT);
        p.set(ROTATION, 90);
        // p.setPreviewSize(640, 480);

        Camera.Size s = p.getSupportedPreviewSizes().get(0);
        Log.d(APP, "preview params " + s.width +"/"+ s.height);            
        p.setPreviewSize( s.width,s.height );

        p.setPictureFormat(PixelFormat.JPEG);
        p.set("flash-mode", "auto");
        camera.setParameters(p);

        try {
            camera.setPreviewDisplay(surfaceHolder);
        } catch (Throwable ignored) {
            Log.e(APP, "set preview error.", ignored);
        }
    }

    public void surfaceChanged(SurfaceHolder holder, int format, int width,
                               int height) {

        if (isPreviewRunning) {
            camera.stopPreview();
        }
        try {
            camera.startPreview();
        } catch(Exception e) {
            Log.d(APP, "Cannot start preview", e);    
        }
        isPreviewRunning = true;
    }

    ...

Answer 1

我发现三星似乎有参数问题

p.set("orientation", "portrait");
p.set("rotation", 90);

取消注释后,它看起来没问题.我只需要手动旋转图像然后.