CameraSourcePreview.java 文件源码

@RequiresPermission(Manifest.permission.CAMERA)
public void start(CameraSource cameraSource) throws IOException, SecurityException {
    if (cameraSource == null) {
        stop();
    }

    mCameraSource = cameraSource;

    if (mCameraSource != null) {
        mStartRequested = true;
        startIfReady();
    }
}