Show Completions and Quick Help Tips in Xcode

I know it is troublesome, tedious, or just like hell. Apple has his own way to do a common task. Very often, we need to use the autocompletion in IDE to assist coding so we do not need to memorize the billions of function names.

In Eclipse, everything is automatic. A list of function names linked together with descriptions next to it pops up as soon as you type.

In Xcode, where is it? Yes, you need to press shortcuts. For the **completions, press “control + space”. But, where are the descriptions? It’s called “quick help”, press “control + command + ?” to open it. Look at the figure then you will understand. Good luck for your fatigued fingers.