应用市场管理类

package com.hwc.oklib.util;

import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.Uri;

import java.util.ArrayList;
import java.util.List;

/**
 * 时间：2017/9/13
 * 作者：黄伟才
 * ：http://www.jianshu.com/p/87e7392a16ff
 * github：https://github.com/huangweicai/OkLibDemo
 * 描述：应用市场管理类
 */

public class MarketUtils {

    // 360手机助手
    public static final String MARKET = "com.qihoo.appstore";
    // 淘宝手机助手
    public static final String MARKET_TAOBAO = "com.taobao.appcenter";
    // 应用宝
    public static final String MARKET_QQDOWNLOADER = "com.tencent.Android.qqdownloader";
    // 安卓市场
    public static final String MARKET_HIAPK = "com.hiapk.marketpho";
    // 安智市场
    public static final String MARKET_GOAPK = "cn.goapk.market";
    // 包名
    public static final String APP_PACKAGE_NAME = "com.*.*";

    public MarketUtils() {
        throw new AssertionError();
    }

    /**
     * 跳转到应用市场
     * @param marketPkg ：应用市场的包名
     */
    public static void goToMarket(Context context, String marketPkg) {
        Uri uri = Uri.parse("market://details?id=" + marketPkg);
        Intent goToMarket = new Intent(Intent.ACTION_VIEW, uri);
        try {
            context.startActivity(goToMarket);
        } catch (ActivityNotFoundException e) {
        }
    }

    /**
     * 启动App
     *
     * @param context
     */
    public static void launchapp(Context context) {
        // 判断是否安装过App，否则去市场下载
        if (isAppInstalled(context, APP_PACKAGE_NAME)) {
            context.startActivity(context.getPackageManager()
                    .getLaunchIntentForPackage(APP_PACKAGE_NAME));
        } else {
            goToMarket(context, APP_PACKAGE_NAME);
        }
    }

    /**
     * 检测某个应用是否安装
     *
     * @param context
     * @param packageName
     * @return
     */
    public static boolean isAppInstalled(Context context, String packageName) {
        try {
            context.getPackageManager().getPackageInfo(packageName, 0);
            return true;
        } catch (PackageManager.NameNotFoundException e) {
            return false;
        }
    }

    /**
     * 判断市场是否存在的方法
     *
     * @param context
     * @param packageName 应用市场包名
     * @return true or false
     */
    public static boolean isAvilible(Context context, String packageName) {
        final PackageManager packageManager = context.getPackageManager();// 获取packagemanager
        List packageInfo = packageManager.getInstalledPackages(0);// 获取所有已安装程序的包信息
        List NameList = new ArrayList();// 用于存储所有已安装程序的包名
        // 从packageInfo中取出包名，放入NameList中
        if (packageInfo != null) {
            for (int i = 0; i < packageInfo.size(); i++) {
                String pn = packageInfo.get(i).packageName;
                NameList.add(pn);
            }
        }
        return NameList.contains(packageName);// 判断pName中是否有目标程序的包名，有TRUE，没有FALSE
    }

}