Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

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

import java.util.ArrayList;

import java.util.List;

public class Main {
    /**
     * @param context
     * @return String
     */
    public static String getVersion(Context context) {
        if (context == null) {
            return "";
        }

        String versionName = "";

        try {
            PackageManager pm = context.getPackageManager();
            PackageInfo pi = pm.getPackageInfo(context.getPackageName(), 0);
            versionName = pi.versionName;
            if (versionName == null || versionName.length() <= 0) {
                return "";
            }
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return versionName;
    }

    /**
     * @param context
     * @return List<PackageInfo>
     * @throws
     * @Title: getPackageInfo
     * @Description: TODO
     */
    public static List<PackageInfo> getPackageInfo(Context context) {

        List<PackageInfo> appList = new ArrayList<PackageInfo>();

        PackageManager mPackageManager = context.getPackageManager();

        List<PackageInfo> packageList = mPackageManager.getInstalledPackages(0);
        for (int i = 0; i < packageList.size(); i++) {
            PackageInfo pi = (PackageInfo) packageList.get(i);
            appList.add(pi);
        }
        return appList;
    }
}