• 不能构造apk

1. File -> Invalidate Caches -> Invalidate.
2. File -> Close Project.
3. Remove the project from the AS project selector window.
4. Quit from Android Studio
5. Start AS and open project again

• R文件爆红.

  1. 检查布局文件是否有报错

  2. 如果你的项目比较大

     1. Help -> Edit Custome Properties
     
     2. idea.max.intellisense.filesize=99999