摘要:
1. Processes and Threads When an application component starts and the application does not have any other components running, the Android system star... 阅读全文
摘要:
The Android Home screen available on most Android devices allows the user to embed app widgets for quick access to content. 阅读全文
摘要:
1. App Widgets App Widgets are miniature application views that can be embedded in other applications (such as the Home screen) and receive periodic ... 阅读全文
摘要:
1. Storage Access Framework Android 4.4 (API level 19) introduces the Storage Access Framework (SAF). The SAF makes it simple for users to browse and... 阅读全文