相关布局文件的位置:
frameworks/base/core/res目录下:
1. notification_template_base.xml
2. notification_template_big_base.xml
3. notification_template_big_picture.xml
4. notification_template_big_text.xml
5. notification_template_inbox.xml
相关类位置:
frameworks/base/core/java/android/app目录下:
1. Notification.java
重点
RemoteViews类
Binder机制