Mavic Enterprise Advanced Android 开发下载文件后，在切换到拍摄模式，执行推流结果无法推流

Mavic Enterprise Advanced Android 开发下载文件后，在切换到拍摄模式，执行推流结果无法推流

//文件下载完成重新设置拍照模式
DJISampleApplication.getCameraInstance().setMode(SettingsDefinitions.CameraMode.RECORD_VIDEO, error -> {

});
startStream();

/**
 * 下载完成重新推流
 */
private void startStream() {
    if (!isLiveStreamManagerOn()) {
        return;
    }

    if (DJISDKManager.getInstance().getLiveStreamManager().isStreaming()) {
        //wang
        Toast.makeText(context, "already started!", Toast.LENGTH_SHORT).show();
        return;
    }
    new Thread() {
        @Override
        public void run() {

            DJISDKManager.getInstance().getLiveStreamManager().setLiveUrl("");
            int result = DJISDKManager.getInstance().getLiveStreamManager().startStream();
            DJISDKManager.getInstance().getLiveStreamManager()
                    .setVideoEncodingEnabled(true);
            DJISDKManager.getInstance().getLiveStreamManager().setStartTime();

            //wang
            ToastUtils.setResultToToast("startLive:" + result +
                    "\n isVideoStreamSpeedConfigurable:" + DJISDKManager.getInstance().getLiveStreamManager().isVideoStreamSpeedConfigurable() +
                    "\n isLiveAudioEnabled:" + DJISDKManager.getInstance().getLiveStreamManager().isLiveAudioEnabled() +
                    "\n 视频帧率为：" + DJISDKManager.getInstance().getLiveStreamManager().getLiveVideoFps() + "fps");
        }
    }.start();

}

private boolean isLiveStreamManagerOn() {
    if (DJISDKManager.getInstance().getLiveStreamManager() == null) {
        //    ToastUtils.setResultToToast("No live stream manager!");
        //wang
        Toast.makeText(context, "No live stream manager!", Toast.LENGTH_SHORT).show();
        return false;
    }
    return true;
}