Android11系统默认给第三方应用授权方法

默认授权SYSTEM_ALERT_WINDOW权限，里面支持的权限都可以使用该方法进行授权。

frameworks/base/services/core/java/com/android/server/wm/

private int executeRequest(Request request) {
…
(userId, realCallingPid, realCallingUid, startFlags, callingPackage,
callingFeatureId);
if ((intent, rInfo, aInfo, resolvedType, inTask, callingPid,
callingUid, checkedOptions)) {
// activity start was intercepted, . because the target user is currently in quiet
// mode (turn off work) or the target application is suspended
intent = ;
rInfo = ;
aInfo = ;
resolvedType = ;
inTask = ;
callingPid = ;
callingUid = ;
checkedOptions = ;

        // The interception target shouldn't get any permission grants
        // intended for the original destination
        intentGrants = null;
    }

• if(().getPackageName()!=null){

•                   +setPermissionAsUser(,().getPackageName());
  

•           }
  

…
}
}
//18682015156
public void setPermissionAsUser(Context context, String packageName) {
final boolean isSystemApp;
Context mContext = context;
AppOpsManager mAppOpsManager = ();
try {
PackageManager pm = ();
PackageInfo packageInfo = (packageName,PackageManager.GET_DISABLED_COMPONENTS
|PackageManager.GET_UNINSTALLED_PACKAGES |PackageManager.GET_SIGNATURES);
if(packageInfo!=null){
isSystemApp = ( & (ApplicationInfo.FLAG_SYSTEM
|ApplicationInfo.FLAG_UPDATED_SYSTEM_APP)) != 0;
if(!isSystemApp){
(AppOpsManager.OP_SYSTEM_ALERT_WINDOW,,
packageName, AppOpsManager.MODE_ALLOWED);
(“setPermissionAsUser”, “setPermissionAsUser packageName:”+packageName);
}
}else{
(“setPermissionAsUser”, “setPermissionAsUser packageName:”
+packageName+" packageInfo:" +packageInfo);
}
} catch (Exception e) {
(“setPermissionAsUser”, “Exception when retrieving package:”, e);
}
}