"Android" gets the installed APK file information (PackageInfo, ResolveInfo) (app image, app name, package name, etc.) from your phone

As we all know, through the Packagemanager can obtain the mobile phone installed apk file information, the specific code is as follows

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1. Packagemanager Packagemanager = This.getpackagemanager ();
2. list<packageinfo> packageinfolist = packagemanager.getinstalledpackages (0);

Through the above method, you can get all the applications installed in the phone, including the manual installation of the APK package information, but also includes the system preinstalled application software information, to distinguish between the two types of software can use the following methods:

A. PackageInfo obtained from Packageinfolist, and then acquired ApplicationInfo through Packageinfo.applicationinfo.

B. The value of Judgment (Applicationinfo.flags & Applicationinfo.flag_system), which is greater than 0 o'clock, indicates that the acquired app is an app preinstalled by the system, and vice versa is a manually installed app.

You can look at the code and say it's written in the comments.

Get the app's code:

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2. /**
4. * Inquire about non-system applications in mobile phone
6. * @param context
8. * @return
10. */
12. public static list<packageinfo> Getallapps (context context) {
14. List<packageinfo> apps = new arraylist<packageinfo> ();
16. Packagemanager Pmanager = Context.getpackagemanager ();
18. Get all apps in your phone
20. list<packageinfo> paklist = pmanager.getinstalledpackages (0);
22. for (int i = 0; i < paklist.size (); i++) {
24. PackageInfo Pak = (packageinfo) paklist.get (i);
26. Determine if a non-system preinstalled application
28. if ((Pak.applicationInfo.flags & Pak.applicationInfo.FLAG_SYSTEM) <= 0) {
30. Customs applications
32. Apps.add (Pak);
34. }
36. }
38. return apps;
40. }

Get picture, App name, package name:

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2. Packagemanager Pmanager = MessageSendActivity.this.getPackageManager ();
4. list<packageinfo> applist = Utils.getallapps (messagesendactivity.this);
8. for (int i=0;i<applist.size (); i++) {
10. PackageInfo pinfo = Applist.get (i);
12. Shareiteminfo Shareitem = new Shareiteminfo ();
14. Set Icon
16. Shareitem.seticon (Pmanager.getapplicationicon (pinfo.applicationinfo));
18. Set Application Name
20. Shareitem.setlabel (Pmanager.getapplicationlabel (pinfo.applicationinfo). toString ());
22. Set Package Name
24. Shareitem.setpackagename (Pinfo.applicationInfo.packageName);
28. }

Where the Shareiteminfo class is my local custom, you can ignore!

Alternatively, someone might be looking for a list of sharing apps, and here's the next one.

Get the code for the app that supports sharing:

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2. /**
4. * Find all the apps that support sharing in your phone
6. * @param context
8. * @return
10. */
12. public static list<resolveinfo> Getshareapps (context context) {
14. list<resolveinfo> Mapps = new arraylist<resolveinfo> ();
16. Intent intent=new Intent (intent.action_send,null);
18. Intent.addcategory (Intent.category_default);
20. Intent.settype ("Text/plain");
22. Packagemanager Pmanager = Context.getpackagemanager ();
24. Mapps = Pmanager.queryintentactivities (Intent,packagemanager.component_enabled_state_default);
28. return Mapps;
30. }

Because of this method, the returned PackageInfo object is not. But ResolveInfo. So the way to get pictures, app names, and package names is different, as follows:

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2. Packagemanager Pmanager = MessageSendActivity.this.getPackageManager ();
6. /********************* Find all the apps that support sharing in your phone *********************/
8. list<resolveinfo> resolvelist = Utils.getshareapps (messagesendactivity.this);
12. for (int i=0;i<resolvelist.size (); i++) {
14. ResolveInfo resolve = Resolvelist.get (i);
16. Shareiteminfo Shareitem = new Shareiteminfo ();
18. Set Icon
20. Shareitem.seticon (Resolve.loadicon (Pmanager));
22. Set Application Name
24. Shareitem.setlabel (Resolve.loadlabel (Pmanager). toString ());
26. Set Package Name
28. Shareitem.setpackagename (Resolve.activityInfo.packageName);
32. }

Summarize:

Get the specific information method by PackageInfo:

Package name Get method: Packageinfo.packagename

Icon Get Get Method: Packagemanager.getapplicationicon (ApplicationInfo)

Application name Get method: Packagemanager.getapplicationlabel (ApplicationInfo)

Access method using permissions: Packagemanager.getpackageinfo (packagename,packagemanager.get_permissions)

. requestedpermissions

Get the specific information method by ResolveInfo:

Package name Get method: Resolve.activityInfo.packageName

Icon Get Get Method: Resolve.loadicon (Packagemanager)

App Name Get method: Resolve.loadlabel (Packagemanager). ToString ()

"Android" gets the installed APK file information (PackageInfo, ResolveInfo) (app image, app name, package name, etc.) from your phone