Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.List;

import android.content.Context;

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

public class Main {

    public static int getInstalledAppVersionCodeByPackageName(Context context, String packageName) {
        PackageManager pm = context.getPackageManager();
        List<PackageInfo> packages = pm.getInstalledPackages(0);
        for (PackageInfo pInfo : packages) {
            ApplicationInfo info = pInfo.applicationInfo;
            if (info.packageName.equals(packageName)) {
                return pInfo.versionCode;
            }
        }
        return -1;
    }

    public static List<PackageInfo> getInstalledPackages(Context context) {
        PackageManager pm = context.getPackageManager();
        List<PackageInfo> infos = pm.getInstalledPackages(0);
        return infos;
    }
}