private List<ResolveInfo> getMainActivitys(PackageManager pm,String packageName)
		{
			Intent infoIntent = new Intent();
			infoIntent.addCategory("android.intent.category.LAUNCHER");
			infoIntent.setAction("android.intent.action.MAIN");
			infoIntent.setPackage(packageName);
			return pm.queryIntentActivities(infoIntent, 0);
		}