Eclipse has a good feature, that is, when your code calls an Android API, the mouse moves to the corresponding function or method, it will automatically have a hover window to prompt the function of the description (the meaning of the parameters contained, the method function). After migrating to Android studio, this mouse moves to the function and you find that the hover window does not come out. So how exactly does Android studio look at the description of the function?
In Android Studio by default it will not be the same as eclipse, the mouse moves to a class or method or variable above, will pop up the hover box, display the relevant document. However, Android Studio can be configured to implement this feature.
First step: In the tab column, select File, and then in the pop-up drop-down menu, select Settings,
You can also click the small wrench icon in the toolbar to set the
Step two: After completing the first step, the Setting dialog box pops up.
After the dialog box pops up, select editor-> on the right side will show quick doc on mouse move Delay, which can be as prompt as Eclipse. Show Quick doc on mouse move delay the default prompt time is 500ms.
Set prompt function usage in Android Studio