ps call

最新推荐文章于 2022-12-14 17:59:48 发布

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最新推荐文章于 2022-12-14 17:59:48 发布

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分类专栏： Android 文章标签： ps-call

本文链接：https://blog.youkuaiyun.com/engineer_james/article/details/75088403

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本文详细解析了Android系统中PSCall的实现流程，从GsmCdmaPhone类开始，介绍了如何根据IMS服务状态选择呼叫方式，并深入到ImsPhone、ImsPhoneCallTracker等关键组件的具体实现。

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ps call

ps call 从 GsmCdmaPhone 开始判断是否注册ims 才开始进行imsphone 实例的获取
所以从GsmCdmaPhone开始跟踪流程如果不清楚可以查看结构图明确标出
com.android.internal.telephony.GsmCdmaPhone#dial

 @Override
    public Connection dial(String dialString, UUSInfo uusInfo, int videoState, Bundle intentExtras)
            throws CallStateException {
                //...

        Phone imsPhone = mImsPhone;

        //...

        if ((imsUseEnabled && (!isUt || useImsForUt)) || useImsForEmergency) {
            try {
                if (DBG) logd("Trying IMS PS call");
                return imsPhone.dial(dialString, uusInfo, videoState, intentExtras); //--->dial
            } catch (CallStateException e) {
               //...
            }
        }

        //...
    }

com.android.internal.telephony.imsphone.ImsPhone#dialInternal

    private Connection dialInternal(String dialString, int videoState, Bundle intentExtras)
            throws CallStateException {
        //...

        if (mmi == null) {
            return mCT.dial(dialString, videoState, intentExtras);//--- dial
        } else if (mmi.isTemporaryModeCLIR()) {
            return mCT.dial(mmi.getDialingNumber(), mmi.getCLIRMode(), videoState, intentExtras);
        } else if (!mmi.isSupportedOverImsPhone()) {
            // If the mmi is not supported by IMS service,
            // try to initiate dialing with default phone
            throw new CallStateException(CS_FALLBACK);
        } else {
//...
        }
    }

com.android.internal.telephony.imsphone.ImsPhoneCallTracker#dialInternal


private void dialInternal(ImsPhoneConnection conn, int clirMode, int videoState,
            Bundle intentExtras) {

        //...

        try {
            //...

            ImsCall imsCall = mImsManager.makeCall(mServiceId, profile,
                    callees, mImsCallListener); //---dial
            conn.setImsCall(imsCall);

            //...
        } catch (ImsException e) {
            loge("dialInternal : " + e);
            conn.setDisconnectCause(DisconnectCause.ERROR_UNSPECIFIED);
            sendEmptyMessageDelayed(EVENT_HANGUP_PENDINGMO, TIMEOUT_HANGUP_PENDINGMO);
        } catch (RemoteException e) {
        }
    }

com.android.ims.ImsManager#makeCall

   public ImsCall makeCall(int serviceId, ImsCallProfile profile, String[] callees,
            ImsCall.Listener listener) throws ImsException {
        if (DBG) {
            log("makeCall :: serviceId=" + serviceId
                    + ", profile=" + profile);
        }


        ImsCall call = new ImsCall(mContext, profile);

        call.setListener(listener);
        ImsCallSession session = createCallSession(serviceId, profile);

        if ((callees != null) && (callees.length == 1)) {
            call.start(session, callees[0]); //---dial
        } else {
            call.start(session, callees);
        }

        return call;
    }

com.android.ims.internal.ImsCallSession#start

    public void start(String callee, ImsCallProfile profile) {
        if (mClosed) {
            return;
        }

        try {
            miSession.start(callee, profile); //---dial
        } catch (RemoteException e) {
        }
    }