How to get installed applications in Android and no system apps?

Question

I want to get all application which appears in the menu screen. But, now I only get the user installed apps or all the application (included the system application).

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Answer 1

final PackageManager pm = getActivity().getPackageManager();
Intent intent = new Intent(Intent.ACTION_MAIN, null);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
List apps = pm.queryIntentActivities(intent, PackageManager.GET_META_DATA);