Leadcore代碼
開機會調用SystemServer的main方面啓動安卓app層,在此方法內調用initAndLoop()初始化各個Manager,各個系統設置從此開始,比如:disableTelephony
初始化WindowManagerService,調用systemReady()
在WindowManagerService中WindowManagerPolicy mPolicy = PolicyManager.makeNewWindowManager()
調用mPolicy.systemReady();
PolicyManager中
public static WindowManagerPolicy makeNewWindowManager() {
return sPolicy.makeNewWindowManager();
}
Policy中
public WindowManagerPolicy makeNewWindowManager() {
return new PhoneWindowManager();
}
也就是最後調用了PhoneWindowManager的systemReady方法
PhoneWindowManager的操作最終將通過KeyguardServiceDelegate影響到鎖屏。
PhoneWindowManager的init方法是在WindowManagerService構造時調用,兩個參數都是WindowManagerService.this
1.PhoneWindowManager.java
systemReady()、systemBooted()
2.KeyguardServiceDelegate.java
bindServiceAsUser("com.android.keyguard","com.android.keyguard.KeyguardService”)
3.KeyguardServiceWrapper.java
4.KeyguardService.java
5.KeyguardViewMediator
6.通過KeyguardViewManager控制,WindowManager顯示鎖屏,內部類ViewManagerHost顯示,加載佈局文件keyguard_host_view,KeyguardHostView控制鎖屏內部View響應顯示
7.KeyguardHostView 的getSecurityView方法獲取不同安全模式下不同的鎖屏佈局。
8.KeyguardSelectorView 中定義了快捷方式的Intent與響應,updateTargets()方法設置。通過
String storedTargets = Settings.System.getStringForUser(mContext.getContentResolver(),
Settings.System.LOCKSCREEN_TARGETS, UserHandle.USER_CURRENT);
得到列表,圖標從Intent獲取。
9.上面的全局參數由設置中進行設置,在設置中又從xml中讀取,這個xml爲config.xml,屬性爲default_lockscreen_icon,位於Keyguard資源中。
10.com.android.settings.cyanogenmod.LockscreenTargets
private String getItemFromSystemUi(String name, String type) {
PackageManager pm = getActivity().getPackageManager();
if (pm != null) {
try {
mKeyguardResources = pm.getResourcesForApplication("com.android.keyguard");
} catch (Exception e) {
mKeyguardResources = null;
}
}
if (mKeyguardResources != null) {
int resId = (int) mKeyguardResources.getIdentifier(name, type, "com.android.keyguard");
if (resId > 0) {
try {
if (type.equals("string")) {
return (String) mKeyguardResources.getString(resId);
}
} catch (NotFoundException e) {
}
}
}
return null;
}
GlobalKeyManager 這個類能控制那些沒被特殊處理的按鍵被廣播