Recently used apps android

Can someone give me pointers on how to display a list of recently used apps on the android system.

I intend to obtain this and display from within a web-view. Next step would be开发者_开发知识库 for me to figure out how to obtain the app icons to display on the webview

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Use ActivityManager.getRecentTasks(): http://developer.android.com/reference/android/app/ActivityManager.html#getRecentTasks(int, int)