Android Studio Shortcuts !
http://developer.android.com/intl/zh-cn/sdk/installing/studio-tips.html
https://www.jetbrains.com/idea/help/meet-intellij-idea.html
https://www.jetbrains.com/idea/help/keyboard-shortcuts-you-cannot-miss.html
http://www.androiddevelopersolutions.com/2015/02/android-studio-keyboard-short-cut.html