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Agora-SDK-在Android中的使用(在线视频通话)，移动端网站开发工具

2021-12-18 10:06:39 作者：互联网

}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile(‘proguard-android.txt’), ‘proguard-rules.pro’
}
}
sourceSets {//这里是jniLibs的目录
main {
jniLibs.srcDirs = [’…/…/…/libs’]
}
}
}

dependencies {//这里是依赖
implementation fileTree(dir: ‘…/…/…/libs’, include: [’*.jar’]) // DO NOT CHANGE, CI may needs it when packaging
implementation ‘com.android.support:appcompat-v7:26.1.0’
}

4.查看`AndroidManifest.xml`,得到入口Activity

可见示例的入口是VideoChatViewActivity,并看一下权限

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|— 权限 ------------

三、创建IChat项目

1、配置项目

项目的配置如图,将依赖包以及.so文件放在对应位置

为了方便些,将res文件夹的资源拷贝一下

2、配置APP ID

3.视频通话Activity的分析

一共也就200多行,还包括一大坨权限申请的代码,这里权限申请的代码单独拎出来,就当复习一下。

3.1:权限申请(非要点，可忽略)

---->[成员变量]----------------------------------
private static final int PERMISSION_REQ_ID = 22;
//WRITE_EXTERNAL_STORAGE 权限只是为了保存日志到SD卡
private static final String[] REQUESTED_PERMISSIONS = {
Manifest.permission.RECORD_AUDIO,//录音权限
Manifest.permission.CAMERA,//相机权限
Manifest.permission.WRITE_EXTERNAL_STORAGE//SD卡写权限
};

if (checkSelfPermission(REQUESTED_PERMISSIONS[0], PERMISSION_REQ_ID) &&
checkSelfPermission(REQUESTED_PERMISSIONS[1], PERMISSION_REQ_ID) &&
checkSelfPermission(REQUESTED_PERMISSIONS[2], PERMISSION_REQ_ID)) {
//执行到此处说明已有权限成功
initAgoraEngineAndJoinChannel();
}

/**

检查权限的方法
@param permission 权限
@param requestCode 请求码
@return 是否拥有权限
*/
public boolean checkSelfPermission(String permission, int requestCode) {
Log.i(LOG_TAG, "checkSelfPermission " + permission + " " + requestCode);
if (ContextCompat.checkSelfPermission(this, permission)
!= PackageManager.PERMISSION_GRANTED) {
//发送权限请求
ActivityCompat.requestPermissions(this, REQUESTED_PERMISSIONS, requestCode);
return false;
}
return true;
}

@Override
public void onRequestPermissionsResult(
int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
Log.i(LOG_TAG, "onRequestPermissionsResult " + grantResults[0] + " " + requestCode);
switch (requestCode) {
case PERMISSION_REQ_ID: {//请求码
if (grantResults[0] != PackageManager.PERMISSION_GRANTED ||
grantResults[1] != PackageManager.PERMISSION_GRANTED ||
grantResults[2] != PackageManager.PERMISSION_GRANTED) {
//三个权限有任意的未被允许,弹吐司，退出
showLongToast("Need permissions " +
Manifest.permission.RECORD_AUDIO + “/” +
Manifest.permission.CAMERA + “/” +
Manifest.permission.WRITE_EXTERNAL_STORAGE);
finish();
break;
}
//执行到此处说明用户已允许权限
initAgoraEngineAndJoinChannel();
break;
}
}
}

4.初始化Agora引擎和连接频道

/**

初始化Agora引擎和连接频道
*/
private void initAgoraEngineAndJoinChannel() {
initializeAgoraEngine();//初始化Agora引擎
setupVideoProfile();//设置视频信息
setupLocalVideo();//设置本地的视频窗
joinChannel();//连接频道
}

/**

初始化Agora引擎
*/
private void initializeAgoraEngine() {
try {
mRtcEngine = RtcEngine.create(//实例化Rtc引擎
getBaseContext(),//传入Context
getString(R.string.agora_app_id), //传入APP ID
mRtcEventHandler);//RTC事件处理器
} catch (Exception e) {//发生异常时捕获异常
Log.e(LOG_TAG, Log.getStackTraceString(e));
throw new RuntimeException(“NEED TO check rtc sdk init fatal error\n” + Log.getStackTraceString(e));
}
}

/**

设置视频信息
*/
private void setupVideoProfile() {
mRtcEngine.enableVideo();//启用视屏
mRtcEngine.setVideoEncoderConfiguration(//视频解码配置
new VideoEncoderConfiguration(//实例化对象
VideoEncoderConfiguration.VD_120x120,//尺寸
VideoEncoderConfiguration.FRAME_RATE.FRAME_RATE_FPS_15,//帧率
VideoEncoderConfiguration.STANDARD_BITRATE,//比特率
VideoEncoderConfiguration.ORIENTATION_MODE.ORIENTATION_MODE_FIXED_PORTRAIT));//旋转模式
}
|—关于VideoEncoderConfiguration对象---->[VideoEncoderConfiguration构造方法]------------------
public VideoEncoderConfiguration(
VideoEncoderConfiguration.VideoDimensions dimensions, //尺寸
VideoEncoderConfiguration.FRAME_RATE frameRate,//帧率
int bitrate, //比特率
VideoEncoderConfiguration.ORIENTATION_MODE orientationMode)//旋转模式

/**

设置本地视频窗
*/
private void setupLocalVideo() {
FrameLayout container = findViewById(R.id.local_video_view_container);//FrameLayout视图
SurfaceView surfaceView = RtcEngine.CreateRendererView(getBaseContext());//创建SurfaceView
surfaceView.setZOrderMediaOverlay(true);
container.addView(surfaceView);
mRtcEngine.setupLocalVideo(new VideoCanvas(surfaceView, VideoCanvas.RENDER_MODE_FIT, 0));
}

/**

连接到频道
*/
private void joinChannel() {
mRtcEngine.joinChannel(null, “demoChannel1”, “Extra Optional Data”, 0);
// 如果你不指定 uid(第四参), 我们会为你生成一个 uid
}

5.RTC事件处理器:`IRtcEngineEventHandler`

IRtcEngineEventHandler是一个抽象类,定义了非常多的抽象方法还有一些静态内部类

private final IRtcEngineEventHandler mRtcEventHandler = new IRtcEngineEventHandler() {
@Override//已完成远端视频首帧解码回调。
public void onFirstRemoteVideoDecoded(final int uid, int width, int height, int elapsed) {
runOnUiThread(() -> setupRemoteVideo(uid));
}
@Override//远端用户（通信模式）/主播（直播模式）离开当前频道回调。
public void onUserOffline(int uid, int reason) {
runOnUiThread(() -> onRemoteUserLeft());
}
@Override//远端用户静音回调。
public void onUserMuteVideo(final int uid, final boolean muted) {
runOnUiThread(() -> onRemoteUserVideoMuted(uid, muted));
}
};

/**

根据uid设置远端视频
@param uid 唯一标识符
*/
private void setupRemoteVideo(int uid) {
FrameLayout container = 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_FIT, u
surfaceView.setTag(uid); // 用uid为surfaceView打标签
View tipMsg = findViewById(R.id.quick_tips_when_use_agora_sdk); // 隐藏文字UI
tipMsg.setVisibility(View.GONE);
}

/**

远端用户挂断
*/
private void onRemoteUserLeft() {
FrameLayout container = findViewById(R.id.remote_video_view_container);
container.removeAllViews();
View tipMsg = findViewById(R.id.quick_tips_when_use_agora_sdk); // 显示文字UI
tipMsg.setVisibility(View.VISIBLE);
}

/**

远端用户静音
@param uid 标识符
@param muted 是否静音
*/
private void onRemoteUserVideoMuted(int uid, boolean muted) {
FrameLayout container = 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);
}
}

6.几个点击事件

/**

是否屏蔽视频
@param view
*/
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());//核心的一句API,
FrameLayout container = 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);
}

/**

是否静音
@param view
*/
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());//核心的一句API,
}

/**

切换摄像头
@param view
*/
public void onSwitchCameraClicked(View view) {
mRtcEngine.switchCamera();
}

/**

关闭
@param view
*/
public void onEncCallClicked(View view) {
finish();
}

@Override
protected void onDestroy() {
super.onDestroy();
leaveChannel();//离开频道
RtcEngine.destroy();//引擎销毁
mRtcEngine = null;//引擎置空
}

/**

离开频道
切换摄像头
@param view
*/
public void onSwitchCameraClicked(View view) {
mRtcEngine.switchCamera();
}

/**

关闭
@param view
*/
public void onEncCallClicked(View view) {
finish();
}