Android app Information Retrieval

 

Packagemanager = This. getpackagemanager ();
List <packageinfo> packageinfolist = packagemanager. getinstalledpackages (0 );

Through the above method, you can obtain all the applications installed on your mobile phone, including information about the APK package that is manually installed and the pre-installed application software, to distinguish between the two types of software, you can use the following methods:

A. Obtain packageinfo from packageinfolist, and then obtain applicationinfo through packageinfo. applicationinfo.

B. determine the value of (applicationinfo. Flags & applicationinfo. flag_system). If the value is greater than 0, the obtained application is a pre-installed application, and vice versa.

You can check the code and the description has been written in comments.

Get the application code:

Public static list <packageinfo> getallapps (context ){
  List <packageinfo> apps = new arraylist <packageinfo> ();
  Packagemanager pmanager = context. getpackagemanager ();
  // Obtain all applications on the mobile phone
  List <packageinfo> paklist = pmanager. getinstalledpackages (0 );
  For (INT I = 0; I <paklist. Size (); I ++ ){
 Packageinfo Pak = (packageinfo) paklist. Get (I );
 // Determine whether the application is pre-installed.
 If (Pak. applicationinfo. Flags & Pak. applicationinfo. flag_system) <= 0 ){
 // Customs applications
 Apps. Add (PAK );
 }
  }
  Return Apps;
}

Obtain the image, application name, and package name:

       Packagemanager pmanager = messagesendactivity. This. getpackagemanager ();
       List <packageinfo> applist = Utils. getallapps (messagesendactivity. This );
        
       For (INT I = 0; I <applist. Size (); I ++ ){
       Packageinfo pinfo = applist. Get (I );
       Required iteminfo items item = new required iteminfo ();
       // Set icon
       Using item. seticon (pmanager. getapplicationicon (pinfo. applicationinfo ));
       // Set Application name
       Using item. setlabel (pmanager. getapplicationlabel (pinfo. applicationinfo). tostring ());
       // Set package name
       Using item. setpackagename (pinfo. applicationinfo. packagename );
       
       }

The iteminfo class is customized locally. You can ignore it!

In addition, someone may be looking for a shared Application List. Let's talk about it here.

Obtain the code of the shared application:

  
Public static list <resolveinfo> getmediaapps (context ){
   List <resolveinfo> mapps = new arraylist <resolveinfo> ();
   Intent intent = new intent (intent. action_send, null );
   Intent. addcategory (intent. category_default );
   Intent. settype ("text/plain ");
   Packagemanager pmanager = context. getpackagemanager ();