安卓相机分辨率自定义与限制

Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
for(int cameraId=0; cameraId<Camera.getNumberOfCameras(); cameraId++)
{
       Camera.getCameraInfo( cameraId, cameraInfo);
       Camera camera = Camera.open(cameraId);
       Camera.Parameters params = camera.getParameters();
        List<Camera.Size> previewSIzes = params.getSupportedVideoSizes(_);
        logger.info("Video supported sizes: " + cameraSizesToString( previewSizes));
}



因为我们直接log输出previewSIzes的话，格式不是我们能看懂的整数，
所以我写了个cameraSizesToString()转化成类似640x420的格式

public static String cameraSizeToSting(Iterable<Camera.size> sizes)
{
       StringBuilder s = new StringBuilder();
       for (Camera.Size size : sizes)
       {
           if (s.length() != 0)
                s.append(",");
           s.append(size.width).append('x').append(size.height);
        }
        return s.toString();




camera拍照，拍照之前需要设置camera parameter，不然拍照分辨率会按照系统默认的最低分辨率(160x120)来设置，