/* * Copyright (C) 2018 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.car.settings.common; import androidx.preference.Preference; /** Contains utility function to operate on Preferences. */ public class PreferenceUtil { /** Ensures that the preference of given type. */ public static boolean checkPreferenceType(Preference preference, Class expectedType) { return expectedType.isInstance(preference); } /** * Requires that the preference is of given type. * * @throws IllegalArgumentException if the preference is not of the given type. */ public static void requirePreferenceType(Preference preference, Class expectedType) { if (!checkPreferenceType(preference, expectedType)) { throw new IllegalArgumentException( "Preference should be of type " + expectedType.getName()); } } }