<string name=“agora_app_id”><#YOUR APP ID#></string>

private RtcEngine mRtcEngine;

/**
 * Tutorial Step 1
 * 初始化Agora，创建 RtcEngine 对象
 */
private void initializeAgoraEngine() {
    try {
        mRtcEngine = RtcEngine.create(getBaseContext(), getString(R.string.agora_app_id), mRtcEventHandler);
    } catch (Exception e) {
        Log.e(LOG_TAG, Log.getStackTraceString(e));

throw new RuntimeException(“Agora初始化失败了，检查一下是哪儿出错了\n” + Log.getStackTraceString(e));
    }
}

private final IRtcEngineEventHandler mRtcEventHandler = new IRtcEngineEventHandler() {
    @Override
    public void onFirstRemoteVideoDecoded(final int uid, int width, int height, int elapsed) {
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                //设置远端视频显示属性
                setupRemoteVideo(uid);
            }
        });
    }

@Override
    public void onUserOffline(int uid, int reason) {
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                //其他用户离开当前频道回调
                onRemoteUserLeft();
            }
        });
    }

@Override
    public void onUserMuteVideo(final int uid, final boolean muted) {
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                //其他用户已停发/已重发视频流回调
                onRemoteUserVideoMuted(uid, muted);
            }
        });
    }
};

private void onRemoteUserLeft() {
    FrameLayout container = (FrameLayout) findViewById(R.id.remote_video_view_container);
    container.removeAllViews();

//文案可随意定制
    View tipMsg = findViewById(R.id.quick_tips_when_use_agora_sdk);
    tipMsg.setVisibility(View.VISIBLE);
}

private void onRemoteUserVideoMuted(int uid, boolean muted) {
    FrameLayout container = (FrameLayout) findViewById(R.id.remote_video_view_container);

SurfaceView surfaceView = (SurfaceView) container.getChildAt(0);

Object tag = surfaceView.getTag();
    if (tag != null && (Integer) tag == uid) {
        surfaceView.setVisibility(muted ? View.GONE : View.VISIBLE);
    }
}

/**
 * Tutorial Step 2
 * 打开视频模式，并设置本地视频属性
 */
private void setupVideoProfile() {
    //打开视频模式
    mRtcEngine.enableVideo();
    //设置本地视频属性
    mRtcEngine.setVideoProfile(Constants.VIDEO_PROFILE_360P, false);
}

/**
 * Tutorial Step 3
 * 设置本地视频显示属性
 */
private void setupLocalVideo() {
    FrameLayout container = (FrameLayout) findViewById(R.id.local_video_view_container);
    SurfaceView surfaceView = RtcEngine.CreateRendererView(getBaseContext());
    surfaceView.setZOrderMediaOverlay(true);
    container.addView(surfaceView);
    mRtcEngine.setupLocalVideo(new VideoCanvas(surfaceView, VideoCanvas.RENDER_MODE_ADAPTIVE, 0));
}

/**
 * Tutorial Step 4
 * 加入一个频道
 */
private void joinChannel() {
    //如果不指定UID，Agroa将自动生成并分配一个UID
    mRtcEngine.joinChannel(null, “demoChannel1”, “Extra Optional Data”, 0);
}

/**
 * Tutorial Step 5
 * 设置远端视频显示属性
 */
private void setupRemoteVideo(int uid) {
    FrameLayout container = (FrameLayout) findViewById(R.id.remote_video_view_container);

if (container.getChildCount() >= 1) {
        return;
    }

SurfaceView surfaceView = RtcEngine.CreateRendererView(getBaseContext());
    container.addView(surfaceView);
    mRtcEngine.setupRemoteVideo(new VideoCanvas(surfaceView, VideoCanvas.RENDER_MODE_ADAPTIVE, uid));

surfaceView.setTag(uid);
    //文案可随意定制
    View tipMsg = findViewById(R.id.quick_tips_when_use_agora_sdk);
    tipMsg.setVisibility(View.GONE);
}

/**
 * Tutorial Step 6
 * 离开当前频道
 */
private void leaveChannel() {
    mRtcEngine.leaveChannel();
}

public void onEncCallClicked(View view) {
    finish();
}

@Override
protected void onDestroy() {
    super.onDestroy();

leaveChannel();
    RtcEngine.destroy();
    mRtcEngine = null;
}

/**
 * Tutorial Step 7
 * 切换前置/后置摄像头
 */
public void onSwitchCameraClicked(View view) {
    mRtcEngine.switchCamera();
}

/**
 * Tutorial Step 8
 * 将自己静音
 */
public void onLocalAudioMuteClicked(View view) {
    ImageView iv = (ImageView) view;
    if (iv.isSelected()) {
        iv.setSelected(false);
        iv.clearColorFilter();
    } else {
        iv.setSelected(true);
        iv.setColorFilter(getResources().getColor(R.color.colorPrimary), PorterDuff.Mode.MULTIPLY);
    }

mRtcEngine.muteLocalAudioStream(iv.isSelected());
}

/**
 * Tutorial Step 9
 * 暂停本地视频流
 */
public void onLocalVideoMuteClicked(View view) {
    ImageView iv = (ImageView) view;
    if (iv.isSelected()) {
        iv.setSelected(false);
        iv.clearColorFilter();
    } else {
        iv.setSelected(true);
        iv.setColorFilter(getResources().getColor(R.color.colorPrimary), PorterDuff.Mode.MULTIPLY);
    }

mRtcEngine.muteLocalVideoStream(iv.isSelected());

FrameLayout container = (FrameLayout) findViewById(R.id.local_video_view_container);
    SurfaceView surfaceView = (SurfaceView) container.getChildAt(0);
    surfaceView.setZOrderMediaOverlay(!iv.isSelected());
    surfaceView.setVisibility(iv.isSelected() ? View.GONE : View.VISIBLE);
}