public static String currentPackageName() {
		ApplicationInfo ai = currentApplicationInfo();
		return (ai != null) ? ai.packageName : "android";
	}
Returns the Android package name of the main application in the current process.

<p>In a few cases, multiple apps might run in the same process, e.g. the SystemUI and the
Keyguard which both have {@code android:process="com.android.systemui"} set in their
manifest. In those cases, the first application that was initialized will be returned.
loader/src/main/java/android/app/AndroidAppHelper.java