Android判断是否是系统App

判断是否是系统App

public static boolean isSystemApplication(Context context, String packageName) {
            if (context == null) {
                return false;
            }
            PackageManager packageManager = context.getPackageManager();
            if (packageManager == null || packageName == null || packageName.length() == 0) {
                return false;
            }

            try {
                ApplicationInfo app = packageManager.getApplicationInfo(packageName, 0);
                return (app != null && (app.flags & ApplicationInfo.FLAG_SYSTEM) > 0);
            } catch (PackageManager.NameNotFoundException e) {
                e.printStackTrace();
            }
            return false;
        }