AppUtil.java

package com.lh.fly.common.utils;

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

import java.util.List;

/**
 * @author MaTianyu
 * @date 2014-12-10
 */
public class AppUtil {

    /**
     * need < uses-permission android:name =“android.permission.GET_TASKS” />
     * 判断是否前台运行
     */
    public static boolean isRunningForeground(Context context) {
        ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
        List<ActivityManager.RunningTaskInfo> taskList = am.getRunningTasks(1);
        if (taskList != null && !taskList.isEmpty()) {
            ComponentName componentName = taskList.get(0).topActivity;
            if (componentName != null && componentName.getPackageName().equals(context.getPackageName())) {
                return true;
            }
        }
        return false;
    }

    /**
     * 获取App包 信息版本号
     *
     * @param context
     * @return
     */
    private PackageInfo getPackageInfo(Context context) {
        PackageManager packageManager = context.getPackageManager();
        PackageInfo packageInfo = null;
        try {
            packageInfo = packageManager.getPackageInfo(context.getPackageName(), 0);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return packageInfo;
    }


}