IDE: Android Studio for android apps development.
CTRL + ALT + L = REFORMAT CODE in a file.
CTRL + ALT + O = REMOVE unused import.
CTRL + ALT + MAYUS LEFT + O =PROJECT STRUCTURE GRADLE VERSION AND ANDROID GRADDLE PLUGIN VERSION.
LEFT SHIFT + LEFT SHIFT = Searching any file.
CTRL + LEFT SHIFT + F =Searching for any word in any file in project.
SHIFT + 6 = Rename in all occurrences for a variable.
ALT + . = Select import from a suggested list.
CTRL + ALT + . = Navigate and select between custom regions
CTRL + . = minimize and maximize custom region
CTRL + - = minimize custom region
extras
ALT + j => Select word occurrences by each word. Its like CTRL + D in sublime text.
ALT+INSERT => Generate code
CTRL + ALT + t = Menu useful options code generate
CTRL + ALT + m = Extraer seleccion de codigo y lo extrae a un metodo