OpenHarmony 通话应用源码剖析 原创 精华
深开鸿
发布于 2022-4-28 18:49
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作者：赖尧
一、简介
通话应用主要提供通话相关用户交互界面，根据电话服务子系统提供的通话数据和状态显示语音去电界面、语音来电界面、语音通话界面、语音多方通话界面、会议通话界面、会议管理界面；并根据用户界面上的操作完成接听、挂断、拒接、静音、保持、音频通道切换、DTMF键盘指令等下发电话服务子系统。
二、架构图
三、代码结构
/applications_call
├── callui # 通话应用主Ability，提供拉起应用入口
│ └── src
│ └── main
│ ├── ets # ets代码目录
│ ├── default
│ ├── assets # 图片资源
│ ├── common # 公共组件或方法配置目录
│ ├── components # 公共组件
│ ├── configs # 应用配置对象目录
│ ├── constant # 应用常量对象目录
│ ├── utils # 公共方法
│ ├── model # Model层代码目录
│ ├── pages # 通话页面目录
| ├── app.ets # 全局ets逻辑和应用生命周期管理文件
│ ├── ServiceAbility # 服务ability
│ ├── callManagerService.ets # ServiceAbility方法
│ ├── service.ts # ServiceAbility方法
│ ├── telephonyApi.ets # ServiceAbility方法
│ ├── resources # 资源配置文件存放目录
| ├── base # 默认图片资源，字体大小，颜色资源存放目录
| ├── zh_CN # 中文语言场景资源内容存放目录
│ ├── config.json # 全局配置文件
├── figures # 架构图目录
│ └── callui_en.png # 架构设计图
├── signature # 签名证书文件目录
│ └── com.ohos.callui.p7b # 签名文件
├── LICENSE # 许可证
四、流程图
五、时序图
六、源码分析
1、启动通话常驻服务
开机启动 通话应用常驻服务PA， 由元能力子系统拉起 代码路径/foundation/aafwk/standard/services/abilitymgr/src/ability_manager_service.cpp
void AbilityManagerService::StartingPhoneServiceAbility()
{
HILOG_DEBUG("%{public}s", __func__);
auto bms = GetBundleManager();
CHECK_POINTER_IS_NULLPTR(bms);
AppExecFwk::AbilityInfo phoneServiceInfo;
Want phoneServiceWant;
phoneServiceWant.SetElementName(AbilityConfig::PHONE_SERVICE_BUNDLE_NAME,
AbilityConfig::PHONE_SERVICE_ABILITY_NAME);
auto userId = GetUserId();
int attemptNums = 1;
HILOG_DEBUG("%{public}s, QueryAbilityInfo, userId is %{public}d", __func__, userId);
IN_PROCESS_CALL_WITHOUT_RET(
while (!(bms->QueryAbilityInfo(phoneServiceWant,
OHOS::AppExecFwk::AbilityInfoFlag::GET_ABILITY_INFO_DEFAULT, userId, phoneServiceInfo)) &&
attemptNums <= MAX_NUMBER_OF_CONNECT_BMS) {
HILOG_INFO("Waiting query phone service ability info completed.");
usleep(REPOLL_TIME_MICRO_SECONDS);
attemptNums++;
}
);
(void)StartAbility(phoneServiceWant, userId, DEFAULT_INVAL_VALUE);
}
2、服务注册监听
service ability 应用启动加载入口文件service.ts文件， 执行onStart钩子函数， 实例化CallManagerService类时添加注册监听， registerCallStateCallback 调用注册电话子系统接口function on(type: ‘callDetailsChange’, callback: Callback<CallAttributeOptions>): void;
添加注册监听子系统上报的状态
/**
* add register listener
*/
addRegisterListener() {
this.mTelephonyCall.registerCallStateCallback(this.getCallData.bind(this));
}
public registerCallStateCallback(callBack) {
call.on('callDetailsChange', (data) => {
if (!data) {
HiLog.i(TAG,prefixLog + 'call.on registerCallStateCallback' + JSON.stringify(data))
return;
}
HiLog.i(TAG,prefixLog + 'call.on registerCallStateCallback callState: ' + JSON.stringify(data.callState))
callBack(data);
});
}
根据上报通话当前状态校验是来电还是去电如果是就做拉起操作， 否则通话发布公共事件；
getCallData(callData) {
this.callData = callData;
this.updateCallList();
const {callState} = this.callData;
/**
* single call or dialing pull up the application
*/
if ((callState === CALL_STATUS_INCOMING && this.callList.length === 1) || callState === CALL_STATUS_DIALING) {
this.startAbility(callData);
} else if (callState !== CALL_STATUS_DISCONNECTING) {
this.publishData(callData);
}
}
publishData(callData) {
commonEvent.publish('callui.event.callDetailsChange', {
bundleName: CALL_BUNDLE_NAME,
isOrdered: false,
data: JSON.stringify(callData)
}, (res) => {
HiLog.i(TAG, "callUI service commonEvent.publish callback res : %s")
});
}
3、服务注册公共事件广播
在启动注册监听后同时也注册添加公共事件广播， 其中’callui.event.callEvent’事件监听通话FA获取初始化数据， ‘callui.event.click’ 事件监听systemui 通知栏操作按钮事件；
const events = ['callui.event.callEvent', 'callui.event.click'];
async addSubscriber() {
subscriber = await new Promise((resolve) => {
commonEvent.createSubscriber({
events
}, (err, data) => {
HiLog.i(TAG, "addSubscriber %s")
resolve(data);
});
});
commonEvent.subscribe(subscriber, (err, res) => {
if (err.code === 0) {
if (res.event === events[0]) {
const obj = JSON.parse(res.data);
if (obj && obj.key === 'getInitCallData') {
this.publishData(this.callData);
}
}
if (res.event === events[1]) {
const {callId,btnType} = res.parameters
this.btnclickAgent(callId, btnType)
}
} else {
HiLog.i(TAG, "callui service commonEvent.subscribe failed err : %s" + JSON.stringify(err))
}
subscriber.finishCommonEvent()
.then(() => {
HiLog.i(TAG, "addSubscriber finishCommonEvent : %s")
})
});
}
4、拉起通话应用初始化数据
在service中通过 PA.startAbility方法拉起 通话FA应用， 通话应用FA在启动入口页面index， 实例化CallManager类，调用initCallData方法， 获取初始通话数据， 调用update更新通话状态；
private initCallData() {
featureAbility.getWant().then((want) => {
if (want && want.parameters && ('callState' in want.parameters)) {
this.update(want.parameters);
HiLog.i(TAG, "initCallData featureAbility.getWant : %s")
} else {
this.mCallServiceProxy.publish({
key: 'getInitCallData',
params: []
});
}
})
.catch((error) => {
HiLog.i(TAG, "initCallData catch error : %s" + JSON.stringify(error))
});
}
5、更新通话状态
在CallManger类实例化时候， 添加公共事件广播监听’callui.event.callDetailsChange’, 应用中订阅到数据调用callDataManager中的update方法，更新callData和callList校验通话状态， 是单方通话或者是多方通话；
const events = ['callui.event.callDetailsChange'];
private async registerSubscriber() {
subscriber = await new Promise((resolve) => {
commonEvent.createSubscriber({
events
},
(err, data) => {
resolve(data);
}
);
});
commonEvent.subscribe(subscriber, (err, res) => {
if (err.code === 0) {
const callData = JSON.parse(res.data);
this.callData = callData
HiLog.i(TAG, "commonEvent subscribe : %s")
if (callData) {
this.update(callData);
}
HiLog.i(TAG, "commonEvent subscribe : %s")
} else {
HiLog.i(TAG, "commonEvent.subscribe err: %s" + JSON.stringify(err))
}
});
}
async update(callData) {
if (globalThis.permissionFlag) {
await this.contactManager.getContactInfo(callData)
}
this.mCallDataManager.update(callData);
call.formatPhoneNumber(callData.accountNumber, (err, data) => {
if (data === undefined) {
AppStorage.SetOrCreate("AccountNumber", callData.accountNumber)
} else {
AppStorage.SetOrCreate("AccountNumber", data)
}
});
HiLog.i(TAG, "update : ")
}
public update(callData) {
const { callState, callId } = callData;
const targetObj = this.callList.find((v) => v.callId === callId);
HiLog.i(TAG, "update : ")
if (targetObj) {
Object.assign(targetObj, {
...callData
});
} else {
this.addCallList({
...callData
});
}
if (callData.callState === CallStateConst.CALL_STATUS_ACTIVE) {
this.updateCallTimeList(callData);
}
const singleCallState = callState === CallStateConst.CALL_STATUS_ACTIVE ||
callState === CallStateConst.CALL_STATUS_WAITING || this.callList.length === 1;
const multiCallState = (callState === CallStateConst.CALL_STATUS_DIALING ||
callState === CallStateConst.CALL_STATUS_ALERTING) && this.callList.length > 1;
if (singleCallState || multiCallState) {
this.mCallStateManager.update(callData);
this.callStateChange(callState);
}
if (callState === CallStateConst.CALL_STATUS_DISCONNECTED) {
if (this.callList.length === 1) {
this.NotificationManager.cancelNotification();
AppStorage.Get<NotificationManager>('notificationManager').sendCapsuleNotification(callData, true);
app.terminate();
} else {
this.removeCallById(callId);
const activeCallData = this.callList.find((v) => v.callState === CallStateConst.CALL_STATUS_ACTIVE);
if (activeCallData) {
this.mCallStateManager.update(activeCallData);
this.callStateChange(activeCallData);
} else if (this.callList[0]) {
this.mCallStateManager.update(this.callList[0]);
this.callStateChange(this.callList[0].callState);
}
}
}
}
通话状态callState 包含的类型：
// calling
public static CALL_STATUS_ACTIVE: number = 0; // 通话中
// State keeping
public static CALL_STATUS_HOLDING: number = 1; // 保持
// Dialing
public static CALL_STATUS_DIALING: number = 2; // 正在拨号
// The other party is ringing
public static CALL_STATUS_ALERTING: number = 3; // 对方已振铃
// Call from the other party
public static CALL_STATUS_INCOMING: number = 4; // 来电
// Waiting for third-party calls
public static CALL_STATUS_WAITING: number = 5; // 三方来电等待
// Hung up
public static CALL_STATUS_DISCONNECTED: number = 6; // 已挂断
// Hanging up
public static CALL_STATUS_DISCONNECTING: number = 7; // 正在挂断
6、发布通知
在通话应用切换到后台， 会触发onPageHide钩子函数发送通知， 其中notificationManager.sendNotification方法发送按钮通知, notificationManager.sendCapsuleNotification方法发送的是胶囊通知；
发布按钮通知， 配置actionButtons， 其中消息类型contentType 等于 notification.ContentType.NOTIFICATION_CONTENT_LONG_TEXT, 表示长消息类型， want下的 action配置为’callui.event.click’, 点击通知按钮会触发systemUI 中的WantAgent.trigger 系统会发布公共事件’callui.event.click’，在通话service中订阅
公共事件’callui.event.click’响应的数据
onPageHide() {
HiLog.i(TAG, "onPageHide :")
this.appInactiveState = true;
const {callState, accountNumber, contactName, callId} = this.callData;
let fool = (callState !== CallStateConst.callStateObj.CALL_STATUS_DISCONNECTED && callId)
if (callState !== CallStateConst.callStateObj.CALL_STATUS_DISCONNECTED && callId) {
let text = contactName + ' ' + accountNumber + ' ';
if (!contactName) {
text = accountNumber + ' ' ;
}
this.notificationManager.sendNotification(text, this.callData);
this.notificationManager.sendCapsuleNotification(this.callData, true);
HiLog.i(TAG, "onPageHide end : ")
}
}
// 发布通知
async sendNotification(text, callData) {
const {callState, callId} = callData;
const actionBtnKeys = this.getMapObj(callState) || [];
const {START_ABILITY, SEND_COMMON_EVENT} = wantAgent.OperationType;
const wantAgentObj = await this.getWantAgent(callData, START_ABILITY);
notificationRequest.wantAgent = wantAgentObj;
notificationRequest.actionButtons = [];
if (actionBtnKeys.length) {
for (const key of actionBtnKeys) {
const data = {
callId, btnType: key
};
const wantAgentObj = await this.getWantAgent(data, SEND_COMMON_EVENT);
resourceManager.getResourceManager((error, mgr) => {
if (error != null) {
return;
}
mgr.getString(textMap[key].id, (error, value) => {
if (error != null) {
} else {
notificationRequest.actionButtons.push({
title: value,
wantAgent: wantAgentObj
});
Object.assign(notificationRequest.content.longText, {
title: text,
expandedTitle: text
});
notification.publish(notificationRequest);
}
});
});
}
}
HiLog.i(TAG, "sendNotification end : ")
}
// 发送胶囊通知
sendCapsuleNotification(callData, isBackground) {
HiLog.i(TAG, "sendCapsuleNotification isBackground : %s" + JSON.stringify(isBackground))
callData.startTime = (callData.startTime)
HiLog.i(TAG, "sendCapsuleNotification callData.startTime : ")
const {callState, startTime} = callData;
commonEvent.publish('CAPSULE_EVENT_CALL_UI', {
bundleName: 'com.ohos.callui',
isOrdered: false,
data: JSON.stringify({
callState,
startTime: startTime*1000,
isBackground,
wantBundleName: CALL_BUNDLE_NAME,
wantAbilityName: CALL_ABILITY_NAME
})
}, (res) => {
HiLog.i(TAG, "callUI app commonEvent.publish CAPSULE_EVENT_CALL_UI callback res : %s")
});
}
七、列举调用电话子系统接口
1、来电接听， 拒接；通话中挂断， 保持， 取消保持接口调用；
// 接听
public acceptCall = function (callId) {
call.answer(callId).then((res) => {
HiLog.i(TAG,prefixLog + "call.answer : %s")
}).catch((err) => {
HiLog.i(TAG, prefixLog + "call.answer catch : %s" + JSON.stringify(err))
});
};
// 拒接
public rejectCall = function (callId, isSendSms = false, msg = '') {
// 普通拒接和短信拒接
const rejectCallPromise = isSendSms ? call.reject(callId, {messageContent: msg}) : call.reject(callId);
rejectCallPromise.then((res) => {
HiLog.i(TAG,prefixLog + "then:rejectCall : %s")
})
.catch((err) => {
HiLog.i(TAG, prefixLog + "catch:rejectCall : %s" + JSON.stringify(err))
});
};
// 挂断
public hangUpCall = (callId) => new Promise((resolve, reject) => {
call.hangup(callId).then((res) => {
resolve(res);
HiLog.i(TAG, prefixLog + "then:hangUpCall : %s")
}).catch((err) => {
reject(err);
HiLog.i(TAG, prefixLog + "catch:hangUpCall : %s" + JSON.stringify(err))
});
});
// 保持
public holdCall = (callId) => new Promise((resolve, reject) => {
call.holdCall(callId).then((res) => {
resolve(res);
HiLog.i(TAG,prefixLog + "then:holdCall : %s")
})
.catch((err) => {
reject(err);
HiLog.i(TAG,prefixLog + "catch:holdCall : %s" + JSON.stringify(err))
});
});
// 取消保持
public unHoldCall = (callId) => new Promise((resolve, reject) => {
call.unHoldCall(callId).then((res) => {
resolve(res);
HiLog.i(TAG,prefixLog + "then:unHoldCall : %s")
})
.catch((err) => {
reject(err);
HiLog.i(TAG,prefixLog + "catch:unHoldCall : %s" + JSON.stringify(err))
});
});
2、拨号盘拨号接口调用
// 拨号
public dialCall(phoneNumber, accountId = 0, videoState = 0, dialScene = 0) {
HiLog.i(TAG, "dialCall phoneNumber : ")
return call.dial(phoneNumber, {
accountId,
videoState,
dialScene
});
}
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已于2023-2-2 10:19:33修改
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赞，感谢整理！
call.on('callDetailsChange')这个api在3568上不回调，大佬你那边这个能调成功吗
call.on('callDetailsChange')这个接口使用api7打包是ok的， 使用api8 打包项目， n-api底层ACE出现崩溃问题, OpenHarmony那边还没有解决