Android 14 版本 TelephonyComponentFactory 技术点详解_各个oem厂商定制各自telephony功能的集成方法-优快云博客

本文链接：https://blog.youkuaiyun.com/xiaoyang1121/article/details/136410139

本文详细介绍了Android 14中TelephonyComponentFactory的工作原理，如何通过工厂模式允许OEM厂商定制Telephony功能，以及如何进行增量开发。重点讨论了生产流程、技术细节，包括XML配置解析和组件创建，强调了这一特性对于提升产品竞争力和可靠性的重要性。

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各个OEM厂商定制各自Telephony功能的集成方法

TelephonyComponentFactory生产流程

技术细节

小结

各个OEM厂商定制各自Telephony功能的集成方法

此要点，优快云没有详细介绍。主要使用设计模式中的“工厂模式”用于创建GsmCdmaPhone使用到的各个子对象，如下：

frameworks/opt/telephony/src/java/com/android/internal/telephony/GsmCdmaPhone.java

public GsmCdmaPhone(Context context, CommandsInterface ci, PhoneNotifier notifier,
              boolean unitTestMode, int phoneId, int precisePhoneType,
              TelephonyComponentFactory telephonyComponentFactory,
              ImsManagerFactory imsManagerFactory) {
...
......
//生产厂商自己的CarrierActionAgent
      mCarrierActionAgent = mTelephonyComponentFactory.inject(CarrierActionAgent.class.getName())
        .makeCarrierActionAgent(this);

//生产厂商自己的CarrierSignalAgent
mCarrierSignalAgent = mTelephonyComponentFactory.inject(CarrierSignalAgent.class.getName())
        .makeCarrierSignalAgent(this);

//生产厂商自己的AccessNetworksManager
mAccessNetworksManager = mTelephonyComponentFactory
        .inject(AccessNetworksManager.class.getName())
        .makeAccessNetworksManager(this, getLooper());

//生产厂商自己的SignalStrengthController
mSignalStrengthController = mTelephonyComponentFactory.inject(
        SignalStrengthController.class.getName()).makeSignalStrengthController(this);

//生产厂商自己的ServiceStateTracker
mSST = mTelephonyComponentFactory.inject(ServiceStateTracker.class.getName())
        .makeServiceStateTracker(this, this.mCi);

mEmergencyNumberTracker = mTelephonyComponentFactory
        .inject(EmergencyNumberTracker.class.getName()).makeEmergencyNumberTracker(
                this, this.mCi);

//生产厂商自己的DeviceStateMonitor
mDeviceStateMonitor = mTelephonyComponentFactory.inject(DeviceStateMonitor.class.getName())
        .makeDeviceStateMonitor(this);

// DisplayInfoController creates an OverrideNetworkTypeController, which uses
// DeviceStateMonitor so needs to be crated after it is instantiated.

mDisplayInfoController = mTelephonyComponentFactory.inject(
        DisplayInfoController.class.getName()).makeDisplayInfoController(this);

//生产厂商自己的DataNetworkController
//14彻底删除老版本的数据栈DcTracker，后续DataNetworkController的解析
mDataNetworkController = mTelephonyComponentFactory.inject(
        DataNetworkController.class.getName())
        .makeDataNetworkController(this, getLooper());

mCarrierResolver = mTelephonyComponentFactory.inject(CarrierResolver.class.getName())
        .makeCarrierResolver(this);
...
...
}

卖关子：这里并没有直接new一个对