android, how to get package name?

Question

In my application I need to know the name of package name. I have no problem when I want to grab it in activities but i can\'t take it in other classes. Following code is workin

Answer 1

Use following

ActivityManager am = (ActivityManager) getSystemService(Activity.ACTIVITY_SERVICE);

                        String packageName2 = am.getRunningTasks(1).get(0).topActivity.getPackageName();