Android Application-Telephony-RIL 2 PhoneApp
2014-12-29 16:53
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系统环境:Ubuntu14.04 / Eclipse + adt
目标环境:Android4.2.2
目标环境:Android4.2.2
/** * Top-level Application class for the Phone app. * 能从注释看出来PhoneApp是整个电话应用的核心类 */ public class PhoneApp extends Application { PhoneGlobals mPhoneGlobals; public PhoneApp() { //空的构造方法,也没有人调用 } @Override public void onCreate() { if (UserHandle.myUserId() == 0) { // 必须是primary user才能初始化phoneGlobals // We are running as the primary user, so should bring up the // global phone state. // PhoneApp的核心作用,持有一个PhoneGlobals类的实例,构造器 // 将context传入。new的过程中只是执行了父类的构造方法,并将自己保存为sMe mPhoneGlobals = new PhoneGlobals(this); // 真正有用的是onCreate,其实在phone对象不存在时新建一个phone对象 // 另外几个重要的framework层对象也在这里创建 mPhoneGlobals.onCreate(); } } // 好像是用作屏幕旋转等时候的配置变化,这里忽略它的存在,主要研究的是流程 @Override public void onConfigurationChanged(Configuration newConfig) { if (mPhoneGlobals != null) { mPhoneGlobals.onConfigurationChanged(newConfig); } super.onConfigurationChanged(newConfig); } }
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