Android-studio - Rename package in Android Studio

android-studio

How do you rename packages in the new IDE Android Studio, based on IntelliJ IDEA?

Is there an automatic refactoring included?

I want to make bulk refactoring, but I don't know how. I worked two years with Eclipse and in Eclipse it's a one-click operation.

Best Solution

In Android Studio, you can do this:

For example, if you want to change com.example.app to my.awesome.game, then:

In your Project pane, click on the little gear icon ( )
Uncheck the Compact Empty Middle Packages option
Your package directory will now be broken up into individual directories
Individually select each directory you want to rename, and:

Right-click it
Select Refactor
Click on Rename
In the pop-up dialog, click on Rename Package instead of Rename Directory
Enter the new name and hit Refactor
Click Do Refactor in the bottom
Allow a minute to let Android Studio update all changes
Note: When renaming com in Android Studio, it might give a warning. In such case, select Rename All

Now open your Gradle Build File (build.gradle - Usually app or mobile). Update the applicationId in the defaultConfig to your new Package Name and Sync Gradle, if it hasn't already been updated automatically:
You may need to change the package= attribute in your manifest.
Clean and Rebuild.
Done! Anyway, Android Studio needs to make this process a little simpler.

Steps

Go to System Tools → System Settings → Keyboard → Shortcuts tab → System → Lock Screen.
Select the row New Accelerator..., then press any special key with the Alpha key (e.g. Shift + L). You should've successfully changed the keyboard shortcut.
Check if the keyboard shortcut now works in Android Studio.

Alternative method

Ctrl + Alt + Shift + L (to show a dialog)

You can also use Eclipse shortcuts.

Windows and Linux: Go to menu File → Settings → Keymap
macOS: Go to menu Preferences → Keymap and choose Eclipse from the drop-down menu.

Using MenuBar

Select code which you want to reformat
Click on Code in the menu bar and select Reformat Code as shown in the image below:

In Android studio 3.5, there is problem with rearranging the xml code, it also rearrange the views as well, so need to use these settings first.

Settings -> Editor -> Code Style -> XML-> Set From -> Predefined Style > Android.

Update for Android Studio 4+

Since Android Studio 4+, you might face issue shortcuts on mac. Shortcuts not working after updating to Android studio 4, in Mac? have an answer for that.

Git - What should be in the .gitignore for an Android Studio project

Updated to Android Studio 3.0 Please share missing items in comments.

A late answer but this alternative answer was not right for us ...

So, here's our gitignore file:

#built application files
*.apk
*.ap_
*.aab
# files for the dex VM
*.dex
# Java class files
*.class
# generated files
bin/
gen/
# Local configuration file (sdk path, etc)
local.properties
# Windows thumbnail db
Thumbs.db
# OSX files
.DS_Store
# Android Studio
*.iml
.idea
#.idea/workspace.xml - remove # and delete .idea if it better suit your needs.
.gradle
build/
.navigation
captures/
output.json 
#NDK
obj/
.externalNativeBuild

Since Android Studio 2.2 and up to 3.0, new projects are created with this gitignore file:

*.iml
.gradle
/local.properties
/.idea/workspace.xml
/.idea/libraries
.DS_Store
/build
/captures
.externalNativeBuild

Deprecated - for older project format, add this section to your gitignore file:


/*/out
/*/*/build
/*/*/production
*.iws
*.ipr
*~
*.swp

This file should be located in the project's root folder and not inside the project's module folder.

Edit Notes:

Since version 0.3+ it seems you can commit and push *.iml and build.gradle files. If your project is based on Gradle: in the new open/import dialog, you should check the "use auto import" checkbox and mark the "use default gradle wrapper (recommended)" radio button. All paths are now relative as @George suggested.
Updated answer according to @128KB attached source and @Skela suggestions