package com.example.administrator.ximengjianyu.utils;

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;

/**
 * Created by xukai on 2017/2/16.
 */
public class ApkUtils {
    private Context mContext;

    public ApkUtils(Context context) {
        mContext = context;
    }

    /**
     * 该方法用来卸载程序
     */
    public void uninstallAPK(String packageName) {
        // 通过程序的包名创建URI
        Uri packageURI = Uri.parse("package:" + packageName);
        // 创建Intent意图
        Intent intent = new Intent(Intent.ACTION_DELETE);
        intent.setData(packageURI);
        // 执行卸载程序
        mContext.startActivity(intent);

    }

    /**
     * 该方法用来判断某个手机上是否安卓了指定的软件
     */
    public boolean haveInstallApk( String packageName){
        //获取packagemanager
        final PackageManager packageManager = mContext.getPackageManager();
        //获取所有已安装程序的包信息
        List<PackageInfo> packageInfos = packageManager.getInstalledPackages(0);
        //用于存储所有已安装程序的包名
        List<String> packageNames = new ArrayList<String>();
        //从pinfo中将包名字逐一取出，压入pName list中
        if(packageInfos != null){
            for(int i = 0; i < packageInfos.size(); i++){
                String packName = packageInfos.get(i).packageName;
                packageNames.add(packName);
            }
        }
        //判断packageNames中是否有目标程序的包名，有TRUE，没有FALSE
        return packageNames.contains(packageName);
    }

    /**
     * 判断相对应的APP是否存在
     *
     * @param context
     * @param packageName(包名)(若想判断QQ，则改为com.tencent.mobileqq，若想判断微信，则改为com.tencent.mm)
     * @return
     */
    public static boolean isAvilible(Context context, String packageName) {
        PackageManager packageManager = context.getPackageManager();

        //获取手机系统的所有APP包名，然后进行一一比较
        List<PackageInfo> pinfo = packageManager.getInstalledPackages(0);
        for (int i = 0; i < pinfo.size(); i++) {
            if (((PackageInfo) pinfo.get(i)).packageName
                    .equalsIgnoreCase(packageName))
                return true;
        }
        return false;
    }

}