<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/tv_channel_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_margin="12dp"
        android:text="频道名称：xxx"
        android:textSize="16sp" />

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@id/tv_channel_name">

        <com.netease.lava.nertc.sdk.video.NERtcVideoView
            android:id="@+id/render_remote_user"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />


        <TextView
            android:id="@+id/tv_remote_uid"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_margin="12dp"
            android:text="对端uid：xxx"
            android:textSize="16sp" />
    </FrameLayout>

    <FrameLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/tv_channel_name"
        android:layout_alignParentEnd="true"
        android:layout_margin="12dp">

        <com.netease.lava.nertc.sdk.video.NERtcVideoView
            android:id="@+id/render_local_user"
            android:layout_width="135dp"
            android:layout_height="240dp" />

        <TextView
            android:id="@+id/tv_local_uid"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_margin="12dp"
            android:text="本地uid：xxx"
            android:textSize="16sp" />

    </FrameLayout>


    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn_enable_video"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="12dp"
            android:text="关闭视频"
            android:textColor="@color/black" />


        <Button
            android:id="@+id/btn_enable_audio"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="12dp"
            android:text="关闭语音"
            android:textColor="@color/black" />

        <Button
            android:id="@+id/btn_leave_channel"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="12dp"
            android:text="结束通话"
            android:textColor="@color/black" />

    </LinearLayout>

</RelativeLayout>

NERtcVideoView localRenderView = findViewById(R.id.render_view_local);
//小画布置于大画布上面
localRenderView.setZOrderMediaOverlay(true);

NERtcVideoView remoteRenderView = findViewById(R.id.render_view_remote);

NERtcCallback neRtcCallback = new NERtcCallbackEx() {
    @Override
    public void onJoinChannel(int result, long channelId, long elapsed, long uid) {
        if (result == NERtcConstants.ErrorCode.OK) {
            // 加入房间成功
        } else {
            // 加入房间失败 ，退出页面
            finish();
        }
    }

    @Override
    public void onLeaveChannel(int result) {
    }

    @Override
    public void onUserJoined(long uid) {
    }

    @Override
    public void onUserLeave (long uid,int reason) {
    }

    @Override
    public void onUserAudioStart(long uid) {
    }

    @Override
    public void onUserAudioStop(long uid) {
    }

    @Override
    public void onUserVideoStart(long uid,int maxProfile) {
        //对方开启视频，按需设置画布及订阅视频
        NERtcEx.getInstance().setupRemoteVideoCanvas(remoteRenderView,uid);
        NERtcEx.getInstance().subscribeRemoteVideoStream(uid, NERtcRemoteVideoStreamType.kNERtcRemoteVideoStreamTypeHigh,true);
    }

    @Override
    public void onUserVideoStop(long uid) {
        //释放之前绑定的画布
        NERtcEx.getInstance().setupRemoteVideoCanvas(null,uid);
    }

    @Override
    public void onDisconnect(int reason) {
        // 与服务器断连 ，退出页面
        finish();
    }

    //*******其他一些回调******
};

//初始化SDK
try {
    NERtc.getInstance().init(getApplicationContext(), "your_app_key", neRtcCallback, null);
} catch (Exception e) {
    e.printStackTrace();
    showToast("SDK初始化失败");
    finish();
    return;
}

//设置本地视频参数
NERtcVideoConfig videoConfig = new NERtcVideoConfig();
videoConfig.width = 1080;
videoConfig.height = 720;
videoConfig.frameRate = NERtcEncodeConfig.NERtcVideoFrameRate.FRAME_RATE_FPS_30;
NERtcEx.getInstance().setLocalVideoConfig(videoConfig);

//加入房间前提前设置好视频开启状态
NERtcEx.getInstance().enableLocalVideo(true,kNERtcVideoStreamTypeMain);

//设置本地画布
NERtcEx.getInstance().setupLocalVideoCanvas(localRenderView);

//加入房间
long yourUid = 1234567;//同一个房间不允许相同uid
NERtcEx.getInstance().joinChannel("your_token", "your_channel_name", yourUid，null);

//结束通话
NERtcEx.getInstance().leaveChannel();

//释放SDK
NERtcEx.getInstance().release();

实现基础的音视频通话，建议您参考 xml 界面的示例代码在界面上添加以下控件。

• 房间 ID
• 用户昵称
• 本端视频窗口
• 远端视频窗口
• 麦克风按钮
• 摄像头按钮
• 结束通话按钮

效果图如下图所示。

//对方开启视频，按需设置画布及订阅视频
NERtcVideoView remoteRenderView = findViewById(R.id.render_view_remote);
NERtcEx.getInstance().setupRemoteVideoCanvas(remoteRenderView,uid);
NERtcEx.getInstance().subscribeRemoteVideoStream(uid, NERtcRemoteVideoStreamType.kNERtcRemoteVideoStreamTypeHigh,true);