How to get package name from anywhere?

Question

I am aware of the availability of Context.getApplicationContext() and View.getContext(), through which I can actually call Context.getPackageName() to retrieve the package name of an application.

They work if I call from a method to which a View or an Activity object is available, but if I want to find the package name from a totally independent class with no View or Activity, is there a way to do that (directly or indirectly)?

Answer 1

An idea is to have a static variable in your main activity, instantiated to be the package name. Then just reference that variable.

You will have to initialize it in the main activity's onCreate() method:

Global to the class:

public static String PACKAGE_NAME; 

Then..

@Override public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.main);      PACKAGE_NAME = getApplicationContext().getPackageName(); } 

You can then access it via Main.PACKAGE_NAME.

Answer 2

If you use the gradle-android-plugin to build your app, then you can use

BuildConfig.APPLICATION_ID 

to retrieve the package name from any scope, incl. a static one.