/*
 * Copyright (C) 2017 Haoge
 *
 * 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.rnboat.framework.updatepluginlib.util;

import android.app.Activity;
import android.os.Handler;
import android.os.Looper;

public class Utils {

    private static Handler handler;
    /**
     * 提供一个Main Handler。用于将更新状态派发传递到主线程中进行通知
     * @return Main Handler
     */
    public static Handler getMainHandler() {
        if (handler == null) {
            handler = new Handler(Looper.getMainLooper());
        }
        return handler;
    }

    public static boolean isValid(Activity activity) {
        return activity != null && !activity.isFinishing();
    }
}