Android Query phone installed third-party apps

1. Get the app name and package name for third-party apps installed on your phone and print

 private void Queryfilterappinfo () {
 Packagemanager pm = this.getpackag  Emanager (); 
//query all installed applications 
 list<applicationinfo> listappcations = pm.getinstalledapplications (Package  Manager.get_uninstalled_packages);  
 Collections.sort (Listappcations,new applicationinfo.displaynamecomparator (PM));//Sort 
//third-party applications 
 for (ApplicationInfo app:listappcations) {
//non-system program 
 if (App.flags & App Licationinfo.flag_system) <= 0) {
 log.e ("Sang", "+app.loadlabel (PM) +" Package name is: "+app.packagename"); 
} 
//is a system program that was manually updated by the user, and the system program became a third-party application. 
 Else if (App.flags & Applicationin Fo.            Flag_updated_system_app)! = 0) {
 log.e ("Sang", "+app.loadlabel (PM) +" Package name is: "+app.packagename); 
    } 
} 
 return; 
 }

Log output style, such as: "QQ package name is: COM.TENCENT.MOBILEQQ"!

Private List<pushdownlist> Queryfilterappinfo () {
PM = This.getpackagemanager ();
Querying all applications that have already been installed
list<applicationinfo> listappcations = pm.getinstalledapplications (packagemanager.get_uninstalled_packages) ;
Collections.sort (Listappcations,new Applicationinfo.displaynamecomparator (PM));//Sort
list<pushdownlist> Appinfos = new arraylist<pushdownlist> (); Save the filter found AppInfo

Third-party applications
Appinfos.clear ();
for (ApplicationInfo app:listappcations) {
Non-System programs
if ((App.flags & Applicationinfo.flag_system) <= 0) {
Appinfos.add (Getappinfo (APP));
}
Originally a system program, by the user manually updated, the system program has become a third-party application
else if ((App.flags & applicationinfo.flag_updated_system_app)! = 0) {
Appinfos.add (Getappinfo (APP));
}
}
return Appinfos;
}