100 lines
3.4 KiB
Java
100 lines
3.4 KiB
Java
/*
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* Copyright 2016 Hippo Seven
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.hippo.preference;
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import android.preference.Preference;
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import android.preference.PreferenceManager;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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public final class PreferenceUtils {
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private PreferenceUtils() {}
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private static final Method mRegisterOnActivityDestroyListener;
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private static final Method mUnregisterOnActivityDestroyListener;
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static {
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Method method;
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Class<?> clazz = PreferenceManager.class;
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method = null;
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try {
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method = clazz.getDeclaredMethod("registerOnActivityDestroyListener",
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PreferenceManager.OnActivityDestroyListener.class);
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if (null != method) {
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method.setAccessible(true);
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}
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} catch (NoSuchMethodException e) {
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e.printStackTrace();
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}
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mRegisterOnActivityDestroyListener = method;
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method = null;
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try {
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method = clazz.getDeclaredMethod("unregisterOnActivityDestroyListener",
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PreferenceManager.OnActivityDestroyListener.class);
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if (null != method) {
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method.setAccessible(true);
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}
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} catch (NoSuchMethodException e) {
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e.printStackTrace();
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}
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mUnregisterOnActivityDestroyListener = method;
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}
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@SuppressWarnings("TryWithIdenticalCatches")
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public static void registerOnActivityDestroyListener(Preference preference,
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PreferenceManager.OnActivityDestroyListener listener) {
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if (null == mRegisterOnActivityDestroyListener || null == preference || null == listener) {
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return;
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}
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PreferenceManager preferenceManager = preference.getPreferenceManager();
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if (null == preferenceManager) {
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return;
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}
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try {
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mRegisterOnActivityDestroyListener.invoke(preferenceManager, listener);
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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} catch (InvocationTargetException e) {
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e.printStackTrace();
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}
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}
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@SuppressWarnings("TryWithIdenticalCatches")
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public static void unregisterOnActivityDestroyListener(Preference preference,
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PreferenceManager.OnActivityDestroyListener listener) {
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if (null == mUnregisterOnActivityDestroyListener || null == preference || null == listener) {
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return;
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}
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PreferenceManager preferenceManager = preference.getPreferenceManager();
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if (null == preferenceManager) {
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return;
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}
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try {
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mUnregisterOnActivityDestroyListener.invoke(preferenceManager, listener);
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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} catch (InvocationTargetException e) {
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e.printStackTrace();
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}
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}
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}
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