android之获取手机安装包里面的信息、获取目录空间的大小-白红宇

android之获取手机安装包里面的信息、获取目录空间的大小

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发布时间：2019-05-27

本文共 2239 字，大约阅读时间需要 7 分钟。

public class RuanjianmanagerInfo extends Object {    private Drawable  icon;//图标    private String name;//标题    private String packname;    private boolean inRom;//是否在内部存储中    private boolean userApp;//是否是系统应用    public Drawable getIcon() {        return icon;    }    public String getName() {        return name;    }    public String getPackname() {        return packname;    }    public boolean isInRom() {        return inRom;    }    public boolean isUserApp() {        return userApp;    }    public void setIcon(Drawable icon) {        this.icon = icon;    }    public void setName(String name) {        this.name = name;    }    public void setPackname(String packname) {        this.packname = packname;    }    public void setInRom(boolean inRom) {        this.inRom = inRom;    }    public void setUserApp(boolean userApp) {        this.userApp = userApp;    }}

* 获取某个目录的可用空间    *    * */    private long getAvailabelSpace(String path) {        StatFs statf = new StatFs(path);        statf.getBlockCount();//获取分区的个数        long size = statf.getBlockSize();//获取分区的大小        long count = statf.getAvailableBlocks();//获取可用分区的个数        return size * count;    }

/** * Created by wofu on 2018/4/25. * 业务方法，提供手机里面所有安装信息 */public  class RuanjianManagerInfoProvide {    private static List
   
     ruanjianmanagerInfos;    public static List
    
      getInfos(Context context){        PackageManager pm=context.getPackageManager();List
     
       packageInfos=pm.getInstalledPackages(0);        ruanjianmanagerInfos = new ArrayList
      
       ();for(PackageInfo packinfo:packageInfos){    //packinfo相当于一个apk包的清单文件    String packname=packinfo.packageName;// 获取包名    Drawable ico=packinfo.applicationInfo.loadIcon(pm);//获取icon    String name=packinfo.applicationInfo.loadLabel(pm).toString();//app名//判断应用的来源和安装位置    int flags=packinfo.applicationInfo.flags;//应用程序信息标记    if((flags&ApplicationInfo.FLAG_SYSTEM)==0){//用户程序    }else {//系统程序    }    if((flags&ApplicationInfo.FLAG_EXTERNAL_STORAGE)==0){//手机内存    }else {//手机外存储设备    }    RuanjianmanagerInfo info=new RuanjianmanagerInfo();    info.setPackname(packname);    info.setIcon(ico);    info.setName(name);    ruanjianmanagerInfos.add(info);}return ruanjianmanagerInfos;    }}