NotificationManagerService启动（“Notifications通知”拆解）

NotificationManagerService启动&＃xff08;“Notifications 通知”拆解&＃xff09;

android12-release

应用侧一般导入NotificationCompat

Jetpack: androidx.core.app.NotificationCompat、androidx.core.app.NotificationManagerCompat
实质&＃xff1a;对mNotificationManager &＃61; (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE)封装

NotificationManagerService启动

frameworks/base/services/java/com/android/server/SystemServer.java

• NotificationManagerService依赖于StorageManagerService
• publishBinderService将Context.NOTIFICATION_SERVICE添加到ServiceManager.java

t.traceBegin("StartNotificationManager");
mSystemServiceManager.startService(NotificationManagerService.class);
SystemNotificationChannels.removeDeprecated(context);
SystemNotificationChannels.createAll(context);
notification &＃61; INotificationManager.Stub.asInterface(ServiceManager.getService(Context.NOTIFICATION_SERVICE));
t.traceEnd();