Android 8.0来电流程分析为什么InCallService.this.onCallAdded(call)调用的父类InCallServiceImp.lonCallAdded(call)

最新推荐文章于 2023-10-04 08:04:53 发布

原创最新推荐文章于 2023-10-04 08:04:53 发布 · 2.7k 阅读

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CC 4.0 BY-SA版权

https://blog.youkuaiyun.com/qq_27540925/article/details/79290319

本文以上文章，本人不理解部分补充

当看到以下部分 InCallService.this.onCallAdded(call);怎么就是调用父类InCallServiceImp.lonCallAdded(call)；

很是不解；

10.在 InCallService 中handleMessage处理MSG_SET_IN_CALL_ADAPTER消息的时候就注册了监听，这里继续跟进到InCallService中的实现去

private Phone.Listener mPhoneListener = new Phone.Listener()
...
@Override
public void onCallAdded(Phone phone, Call call) {
//调用InCallService对象的onCallAdded方法
InCallService.this.onCallAdded(call);
}

Dialer
11.查找InCallService的子类

public class InCallServiceImpl extends InCallService

@Override
public void onCallAdded(Call call) {

if ((CallList.getInstance().getVideoUpgradeRequestCall() != null ||
CallList.getInstance().getSendingVideoUpgradeRequestCall() != null ||
/// M: When is cancel upgrade progress,we can't add another call in calllist. @{
CallList.getInstance().getSendingCancelUpgradeRequestCall() != null)
///@}
&& !isEmergency(call)) {
...
} else {
InCallPresenter.getInstance().onCallAdded(call);
}
}

6.查看监听Call添加的观察者
在CallsManager构造函数初始化的时候添加了一些列观察者，还有就是通过addListener去添加的。

mListeners.add(mInCallWakeLockController);
mListeners.add(statusBarNotifier);
mListeners.add(mCallLogManager);
mListeners.add(mPhoneStateBroadcaster);
mListeners.add(mInCallController);
mListeners.add(mCallAudioManager);
mListeners.add(missedCallNotifier);
mListeners.add(mHeadsetMediaButton);
mListeners.add(mProximitySensorManager);
...
mListeners.add(new CallConnectedVibrator(mContext));

这里我们继续跟进mInCallController，

@Override
public void onCallAdded(Call call) {
if (!isBoundAndConnectedToServices()) {
bindToServices(call);
} else {
// We are bound, and we are connected.
adjustServiceBindingsForEmergency();

// This is in case an emergency call is added while there is an existing call.
mEmergencyCallHelper.maybeGrantTemporaryLocationPermission(call,
mCallsManager.getCurrentUserHandle());

//添加Call
addCall(call);

List<ComponentName> componentsUpdated = new ArrayList<>();
for (Map.Entry<InCallServiceInfo, IInCallService> entry : mInCallServices.entrySet()) {
InCallServiceInfo info = entry.getKey();

if (call.isExternalCall() && !info.isExternalCallsSupported()) {
continue;
}

if (call.isSelfManaged() && !info.isSelfManagedCallsSupported()) {
continue;
}

// Only send the RTT call if it's a UI in-call service
boolean includeRttCall = info.equals(mInCallServiceConnection.getInfo());

componentsUpdated.add(info.getComponentName());
IInCallService inCallService = entry.getValue();

ParcelableCall parcelableCall = ParcelableCallUtils.toParcelableCall(call,
true /* includeVideoProvider */, mCallsManager.getPhoneAccountRegistrar(),
info.isExternalCallsSupported(), includeRttCall);
try {
//AIDL调用远程的addCall方法
inCallService.addCall(parcelableCall);
} catch (RemoteException ignored) {
}
}
Log.i(this, "Call added to components: %s", componentsUpdated);
}
}

InCallController.java

private boolean onConnected(InCallServiceInfo info, IBinder service) {
Trace.beginSection("onConnected: " + info.getComponentName());
Log.i(this, "onConnected to %s", info.getComponentName());

IInCallService inCallService = IInCallService.Stub.asInterface(service);
mInCallServices.put(info, inCallService);

..............略
}

135 private class InCallServiceBindingConnection extends InCallServiceConnection {

136
137        private final ServiceConnection mServiceConnection = new ServiceConnection() {
138            @Override
139            public void onServiceConnected(ComponentName name, IBinder service) {
140                Log.startSession("ICSBC.oSC");
141                synchronized (mLock) {
142                    try {
143                        Log.d(this, "onServiceConnected: %s %b %b", name, mIsBound, mIsConnected);
144                        mIsBound = true;
145                        if (mIsConnected) {
146                            // Only proceed if we are supposed to be connected.
147                            onConnected(service);
148                        }
149                    } finally {
150                        Log.endSession();
151                    }
152                }
153            }
};

搜mServiceConnection；

@Override
public int connect(Call call) {
if (mIsConnected) {
Log.addEvent(call, LogUtils.Events.INFO, "Already connected, ignoring request.");
return CONNECTION_SUCCEEDED;
}

if (call != null && call.isSelfManaged() &&
!mInCallServiceInfo.isSelfManagedCallsSupported()) {
Log.i(this, "Skipping binding to %s - doesn't support self-mgd calls",
mInCallServiceInfo);
mIsConnected = false;
return CONNECTION_NOT_SUPPORTED;
}

Intent intent = new Intent(InCallService.SERVICE_INTERFACE);
intent.setComponent(mInCallServiceInfo.getComponentName());
if (call != null && !call.isIncoming() && !call.isExternalCall()){
intent.putExtra(TelecomManager.EXTRA_OUTGOING_CALL_EXTRAS,
call.getIntentExtras());
intent.putExtra(TelecomManager.EXTRA_PHONE_ACCOUNT_HANDLE,
call.getTargetPhoneAccount());
}

Log.i(this, "Attempting to bind to InCall %s, with %s", mInCallServiceInfo, intent);
mIsConnected = true;
if (!mContext.bindServiceAsUser(intent, mServiceConnection,
Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE |
Context.BIND_ABOVE_CLIENT,
UserHandle.CURRENT)) {
Log.w(this, "Failed to connect.");
mIsConnected = false;
}

if (call != null && mIsConnected) {
call.getAnalytics().addInCallService(
mInCallServiceInfo.getComponentName().flattenToShortString(),
mInCallServiceInfo.getType());
}

return mIsConnected ? CONNECTION_SUCCEEDED : CONNECTION_FAILED;
}

InCallService.SERVICE_INTERFACE = "android.telecom.InCallService";

incallUi的AndroidManifest.xml中service InCallServiceImpl 配置

<action android:name="android.telecom.InCallService"/>

<intent-filter>
<action android:name="android.telecom.InCallService"/>
</intent-filter>
</service>

所以：mContext.bindServiceAsUser(intent, mServiceConnection,
Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE |
Context.BIND_ABOVE_CLIENT,
UserHandle.CURRENT)

bindServiceAsUser 启动的Service就是InCallServiceImpl；

所以 InCallService.this.onCallAdded(call);会调用子类InCallServiceImpl的onCallAdded(call)方法；

就能理解了telecom 到InCallUI 界面显示的调用；

第一次写，感觉逻辑不是很清楚，见谅！如有不正确的地方，欢迎指正，谢谢！