Many popular apps like Google Maps, Facebook, Foursquare, etc. have header and/or footer bars on most of their activities. These headers often include very useful buttons, and I would like to create one for my app. Does anyone know how they are done? I haven't been able to find anything so far.Many popular apps like Google Maps, Facebook, F
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如何为Android应用程序创建页眉或页脚按钮栏
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