Question: i am facing problem in android studio. In eclipse when i want to use class like Intent, then i write intent starting with lower case it give me suggestion box indicating class name Intent, but in android studio if i type intent starting with lower case it does not Provide Suggestion class name Intent.Thanks in advance.

Answer: 
In my case Ctrl + Space was overloaded by mac shortcuts. And even in the case, I disabled them, they conflict with Android Studio.

So, I gave them another keys and it solved the problem.

Go to the `System Preferences -> Keyboard -> Shortcuts -> Input Sources` and use new keys for them.

[![enter image description here](https://i.stack.imgur.com/cVfF1.png)](https://i.stack.imgur.com/cVfF1.png)
`File --> Settings --> Editor --> General --> Code Completion --> Case sensitive completion --> None`