Android判断应用是否在前台工具类封装

文章已同步更新到个人博客：www.tianshaojiao.com
闲话少说，封装的工具类如下：

package com.corecmd.tcloud.tcim.utils;

import android.app.ActivityManager;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;

import com.corecmd.tcloud.tcim.common.Constant;

import java.util.List;

/**
 * @author : tianshaojiao
 * @version : 1.0
 * @apiNote :
 * @date : 2021/3/3
 * @copyright :
 */
public class AppUtil {
    /**
     * 返回当前的应用是否处于前台显示状态
     * @param $packageName 应用包名
     * @return
     */
    public static boolean isTopActivity(Context context,String $packageName)
    {
        boolean isTop = false;
        //_context是一个保存的上下文
        ActivityManager am = (ActivityManager) context.getApplicationContext().getSystemService(Context.ACTIVITY_SERVICE);
        List<ActivityManager.RunningAppProcessInfo> process = am.getRunningAppProcesses();
        if(process.size() > 0) {
            for(ActivityManager.RunningAppProcessInfo processInfo : process)
            {
                if(processInfo.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND &&
                        processInfo.processName.equals($packageName)){
                    isTop = true;
                    break;
                }
            }
        }
        return isTop;
    }

    /**
     * 取得应用程序包名
     * @param context 上下文
     * @return
     */
    public static String getAppPackageName(Context context){
        String packageName = null;
        try {
            PackageManager packageManager = context.getPackageManager();
            PackageInfo packageInfo = packageManager.getPackageInfo(context.getPackageName(), 0);
            packageName = packageInfo.packageName;
        } catch (Exception e) {
            System.out.println("取得包名异常"+e.getMessage());
            packageName = Constant.TCIMPACKAGENAME;
        }
        return packageName;
    }
}

本文地址：https://blog.csdn.net/MasterAjoe/article/details/114319066