// 需要传入您申请的高级版证书LicenseID，ID可以在百度智能云控制台查看
ProjectionEngine.setLicenseID(BaseApp.APP_ID);
// 设备发现回调，可以在这里将发现到的接收端信息保存起来
private ArrayList<DeviceUpnp> mCastReceivers = new ArrayList<>();
private DeviceUpnp.Devicelistener upnpListenerImp = new  DeviceUpnp.Devicelistener() {

    @Override
    public void OnAddDevice(DeviceUpnp device) {
        Log.d(TAG, "onAddDevice " + device.getUuid());
        mCastReceivers.add(device);
    }

    @Override
    public void OnRemoveDevice(DeviceUpnp device) {

    }
};
ProjectionEngine.getInstance().setUpnpDeviceServerListener(getContext(), upnpListenerImp);

ProjectionEngine.getInstance().searchDeviceBegin();

// 创建渲染控制器回调，当投屏开始后，会通知接收端的状态变化
private ProjectionRenderListenerImp projectionRenderListenerImp = new ProjectionRenderListenerImp();
class ProjectionRenderListenerImp  implements ProjectionRender.ProjectionRenderListener {
    @Override
    public void onSetAVTransportURI(int renderId, boolean result) {
        Log.i(TAG, "ProjectionRender onSetAVTransportURI " + renderId + ", result: " + result);
    }

    @Override
    public void onPaused(int renderId, boolean result) {
        Log.i(TAG, "ProjectionRender onPaused " + renderId + ", result " + result);
    }

    public ProjectionRenderListenerImp() {
    }

    @Override
    public void onDuration(int renderId, final Integer duration) {
        Log.i(TAG, "ProjectionRender onDuration " + renderId + ", duration " + duration);
    }

    @Override
    public void onCurrent(int renderId, final Integer current) {
        Log.i(TAG, "ProjectionRender onCurrentPosition " + renderId + ", position " + current);
    }

    @Override
    public void onPlayed(int renderId, boolean result) {
        Log.i(TAG, "ProjectionRender onPlayed " + renderId + ", result " + result);
    }

    @Override
    public void onStoped(int renderId, boolean result) {
        Log.i(TAG, "ProjectionRender onStoped " + renderId + ", result " + result);
    }
}
// 从之前保存的接收端信息中选出一个作为发起投屏的目标
DeviceUpnp device = mCastReceivers.get(position);
private int mCastReceiverIdx = -1;
if (null != device) {
    // 分配渲染控制器， mCastReceiverIdx作为渲染控制器标识，后续的媒体播放控制都基于它完成
    mCastReceiverIdx = ProjectionEngine.getInstance().distributeProjectionRender(device, projectionRenderListenerImp);
    // 设置接收端要播放的媒体url
    ProjectionEngine.getInstance().setAVTransportURL(mCastReceiverIdx, url);
    // 开始播放
    ProjectionEngine.getInstance().play(mCastReceiverIdx, 1);
}

// 播放
ProjectionEngine.getInstance().play(mCastReceiverIdx, 1);
// 暂停
ProjectionEngine.getInstance().pause(mCastReceiverIdx);
// seek, 单位为秒
ProjectionEngine.getInstance().seek(mCastReceiverIdx, 30);
// 停止
ProjectionEngine.getInstance().stop(mCastReceiverIdx);

ProjectionEngine.getInstance().searchDeviceEnd();

ProjectionEngine.getInstance().stop(mCastReceiverIdx);
ProjectionEngine.getInstance().releaseProjectionRender(mCastReceiverIdx);