genemotion
问题
https://blog.csdn.net/beiminglei/article/details/17399333
https://www.jianshu.com/p/f8fe6ab1e03c
https://blog.csdn.net/fendoudebb/article/details/52161993
https://blog.csdn.net/qq_38359483/article/details/79976941
Why can't I see the Genymotion plugin icon in Android Studio?
From Android Studio version 0.3.0 onwards, the toolbar, where Genymotion plugin icon is displayed, is hidden by default.
To display the toolbar, click View > Toolbar.
explame
http://www.runoob.com/w3cnote/android-tutorial-drawerlayout.html
handler
http://www.runoob.com/w3cnote/android-tutorial-handler-message.html
arm
https://www.cnblogs.com/zjutlitao/p/4790193.html