Quick Start for Android Studio shortcut keys

Adjustment
Settings->ide Settings->editor->appearance->show Line numbers display number of lines of code
Settings->ide Settings->editor->show Quick doc on mouse move hover display doc
Keymap->main Menu->code->completion->basic: The default is ctrl+space code smart hints can be changed to alt+/
Keymap->other->show Intention Action: Default is alt+enter bug fix prompt list (quick fix,ctrl+1 in eclipse)
Keymap->main menu->navigate->file Structure: Default is ctrl+f3 quick call up outline outline

Ctrl+d Copying rows
Ctrl+x Deleting rows
CTRL+J automatic code, quickly generate code, such as Findviewbyid, etc. can be used, Button = Ctrl+j to see the effect

Ctrl+alt+l Automatic Formatting code

shift+alt+ switch the code up or down on the arrow keys

The class structure diagram is on the left panel, DDMS is a separate window.
CTRL+H Display class structure diagram

Quick Start for Android Studio shortcut keys