android.hardware.camera2.CaptureResult#LENS_STATE_STATIONARY源码实例Demo

private boolean isLensStationary(TotalCaptureResultProxy metadata)
{
    Integer lensState = metadata.get(CaptureResult.LENS_STATE);
    if (lensState == null)
    {
        return true;
    } else
    {
        switch (lensState)
        {
            case CaptureResult.LENS_STATE_STATIONARY:
                return true;
            default:
                return false;
        }
    }
}
 

/**
 * Utility function: converts CaptureResult.LENS_STATE to String.
 */
private static String lensStateToString(int lensState)
{
    switch (lensState)
    {
        case CaptureResult.LENS_STATE_MOVING:
            return "moving";
        case CaptureResult.LENS_STATE_STATIONARY:
            return "stationary";
        default:
            return "unknown";
    }
}