切换摄像头时Camera is being used after

/** * 释放摄像头资源 */  

private void freeCameraResource() {  

    if (mCamera != null) {  

        mCamera.setPreviewCallback(null);  

        mCamera.stopPreview();  

        mCamera.lock();  

        mCamera.release();  

        mCamera =null;  

    }  

}  

我之前漏了一句        mCamera.setPreviewCallback(null);  导致报错。

参考链接：

java.lang.RuntimeException: Camera is being used after Camera.release() was called

https://blog.csdn.net/Stromg_zzp/article/details/52196520