问题
I just switched from Eclipse to Android Studio (IntelliJ).
I can't figure out how the autocompletion works! I tried Control + Space, Control + Shift + Space but i have no relevant suggestion. Not in the Java files, not in the layout files.
Is there another shortcut? Do I need to enable some option beforehand?
回答1:
Preferences > Keymap > Code > Completion > Basic/SmartType:
回答2:
It was actually a display problem. I'm using two screens, and the suggestions only appear when the IDE is on the main one.
The (imperfect) solution is to define the display where I'm using the IDE as the main one.
回答3:
Just remove all the folder "AndroidStudioPreview";
On Windows:
Go to your User Folder - on Windows 7/8 this would be:
[SYSDRIVE]:\Users\[your username] (ex. C:\Users\JohnDoe\)
In this folder there should be a folder called .AndroidStudioPreview
On Mac OS X
Remove these files:
~/Library/Application Support/AndroidStudioPreview
~/Library/Caches/AndroidStudioPreview
~/Library/Logs/AndroidStudioPreview
~/Library/Preferences/AndroidStudioPreview
回答4:
You can get your Autocompletion suggestions back in Android Studio by doing: File>Invalidate Coches/Restart...>Invalidate and Restart
来源：https://stackoverflow.com/questions/17553489/autocompletion-not-showing-in-android-studio-with-dual-screens