场景解决方案

// 打开麦克风
mTRTCCloud.muteLocalAudio(false);
// 关闭麦克风
mTRTCCloud.muteLocalAudio(true);

// 打开扬声器
mTRTCCloud.muteAllRemoteAudio(false);
// 关闭扬声器
mTRTCCloud.muteAllRemoteAudio(true);

// 打开摄像头, 指定前置或后置摄像头及渲染控件
mTRTCCloud.startLocalPreview(isFrontCamera, videoView);
// 关闭摄像头
mTRTCCloud.stopLocalPreview();

// 切换听筒
mTRTCCloud.getDeviceManager().setAudioRoute(TXDeviceManager.TXAudioRoute.TXAudioRouteEarpiece);
// 切换免提
mTRTCCloud.getDeviceManager().setAudioRoute(TXDeviceManager.TXAudioRoute.TXAudioRouteSpeakerphone);

// 判断当前是否为前置摄像头
boolean isFrontCamera = mTRTCCloud.getDeviceManager().isFrontCamera();
// 切换前置或后置摄像头, true: 切换为前置; false: 切换为后置
mTRTCCloud.getDeviceManager().switchCamera(!isFrontCamera);

// 更新本地预览画面渲染控件
mTRTCCloud.updateLocalView(previewView);
// 更新远端用户视频渲染控件
mTRTCCloud.updateRemoteView(userId, TRTCCloudDef.TRTC_VIDEO_STREAM_TYPE_BIG, previewView);

@Override
public void onNetworkQuality(TRTCCloudDef.TRTCQuality localQuality, ArrayList<TRTCCloudDef.TRTCQuality> remoteQuality) {
    if (remoteQuality.size() > 0) {
        switch (remoteQuality.get(0).quality) {
            case TRTCCloudDef.TRTC_QUALITY_Excellent:
                Log.i(TAG, "对方网络非常好");
                break;
            case TRTCCloudDef.TRTC_QUALITY_Good:
                Log.i(TAG, "对方网络比较好");
                break;
            case TRTCCloudDef.TRTC_QUALITY_Poor:
                Log.i(TAG, "对方网络一般");
                break;
            case TRTCCloudDef.TRTC_QUALITY_Bad:
                Log.i(TAG, "对方网络较差");
                break;
            case TRTCCloudDef.TRTC_QUALITY_Vbad:
                Log.i(TAG, "对方网络很差");
                break;
            case TRTCCloudDef.TRTC_QUALITY_Down:
                Log.i(TAG, "对方网络极差");
                break;
            default:
                Log.i(TAG, "未定义");
                break;
        }
    }
}

// 开始通话时间
long callStartTime = 0;
// 结束通话时间
long callFinishTime = 0;
// 通话持续时长(秒)
long callDuration = 0;

// 远端用户进房回调
@Override
public void onRemoteUserEnterRoom(String userId) {
    callStartTime = System.currentTimeMillis();
}

// 本地用户退房回调
@Override
public void onExitRoom(int reason) {
    callFinishTime = System.currentTimeMillis();
    callDuration = (callFinishTime - callStartTime) / 1000;
}

V2TIMOfflinePushInfo v2TIMOfflinePushInfo = new V2TIMOfflinePushInfo();
v2TIMOfflinePushInfo.setTitle("推送标题");
v2TIMOfflinePushInfo.setDesc("推送内容");

// OPPO必须设置ChannelID才可以收到推送消息，这个channelID需要和控制台一致
v2TIMOfflinePushInfo.setAndroidOPPOChannelID("tuikit");
v2TIMOfflinePushInfo.setAndroidHuaWeiCategory("IM");
v2TIMOfflinePushInfo.setAndroidVIVOCategory("IM");

// 设置自定义铃声
v2TIMOfflinePushInfo.setIOSSound("phone_ringing.mp3");
v2TIMOfflinePushInfo.setAndroidSound("phone_ringing");

// 发送通话邀请信令
V2TIMManager.getSignalingManager().invite(userId, data, false, v2TIMOfflinePushInfo, timeout, new V2TIMCallback() {
    @Override
    public void onError(int code, String desc) {
        // 发送邀请信令失败
    }

    @Override
    public void onSuccess() {
        // 发送邀请信令成功
    }
});