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java实现获取安卓设备里已安装的软件包

2020-01-12 14:54hebedich JAVA教程

本文给大家介绍的是如何获取设备中已经安装的应用软件包的代码,其核心方法原理很简单,我们通过Android中提供的PackageManager类,来获取手机中安装的应用程序信息

之前的文章向大家介绍了几个项目中常用的实用功能,那么在这篇文中,我将向大家介绍如何获取Android手机中已经安装的手机应用程序,好了,废话不多说,直接上代码

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private String getInstalledAppListAsString(){
    PackageManager pm = context.getPackageManager();
    List<ApplicationInfo> apps = pm.getInstalledApplications(PackageManager.GET_GIDS);
    StringBuffer stringBuffer = new StringBuffer();
    for (ApplicationInfo app : apps) {
      if(pm.getLaunchIntentForPackage(app.packageName) != null) {
        // apps with launcher intent
        if((app.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) == 1) {
          // updated system apps
 
        } else if ((app.flags & ApplicationInfo.FLAG_SYSTEM) == 1) {
          // system apps
 
        } else {
          // user installed apps
          stringBuffer.append(app.packageName).append(';');
        }
      }
    }
    return stringBuffer.toString();
  }

下面我们看看具体如何获取各个应用的相关信息呢

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package cn.lyz.mobilesafe.domain;
 
import android.graphics.drawable.Drawable;
 
/**
 * 获取的应用基本信息实体类
 * @author liuyazhuang
 *
 */
public class AppInfo {
    //图标
    private Drawable app_icon;
    //应用名称
    private String app_name;
    //应用版本号
    private String app_version;
    //应用包名
    private String packagename;
    //是否是用户app
    private boolean isUserApp;
    
    
    public AppInfo() {
        super();
        // TODO Auto-generated constructor stub
    }
    public AppInfo(Drawable app_icon, String app_name, String app_version,
            String packagename) {
        super();
        this.app_icon = app_icon;
        this.app_name = app_name;
        this.app_version = app_version;
        this.packagename = packagename;
    }
    
    
    public AppInfo(Drawable app_icon, String app_name, String app_version,
            String packagename, boolean isUserApp) {
        super();
        this.app_icon = app_icon;
        this.app_name = app_name;
        this.app_version = app_version;
        this.packagename = packagename;
        this.isUserApp = isUserApp;
    }
    public Drawable getApp_icon() {
        return app_icon;
    }
    public void setApp_icon(Drawable app_icon) {
        this.app_icon = app_icon;
    }
    public String getApp_name() {
        return app_name;
    }
    public void setApp_name(String app_name) {
        this.app_name = app_name;
    }
    public String getApp_version() {
        return app_version;
    }
    public void setApp_version(String app_version) {
        this.app_version = app_version;
    }
    public String getPackagename() {
        return packagename;
    }
    public void setPackagename(String packagename) {
        this.packagename = packagename;
    }
    
    public boolean isUserApp() {
        return isUserApp;
    }
    public void setUserApp(boolean isUserApp) {
        this.isUserApp = isUserApp;
    }
    
    @Override
    public String toString() {
        return "AppInfo [app_icon=" + app_icon + ", app_name=" + app_name
                + ", app_version=" + app_version + ", packagename="
                + packagename + ", isUserApp=" + isUserApp + "]";
    }
}

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