Can't find getPackageManager() method in android

Question

I have problem with my project.

I can't find getPackageManager() method although i imported android.content.pm.PackageManager;

what wrong with this piece of code

List<PackageInfo> packs = getPackageManager().getInstalledPackages(0);

.Thanks for your helping

Is your class extends with FragmentActivity, Activity or Fragment??? — Piyush, Mar 14 '14 at 05:07

NameSpace · Answer 1 · 2016-09-26T11:09:20.923

The error is not in your line of code, but where you are calling it. getPackageManager() is a method of Context. You can use this method inside an Activity (because an Activity is a Context), but if you are calling it elsewhere, you need to pass a Context. In a fragment you may also have access to the getActivity() function, which returns the Acitivity-Context.

    Context context...;

    context.getPackageManager();
    getActivity().getPackageManager();

score 12 · Answer 2 · edited Feb 22 '18 at 07:38

12

If you are using it in Activity you will not get an error or warning for getPacketManager, but if you are using it in Fragments you should prefix it with getActivity.

example:

PackageManager pm = getActivity().getPackageManager();

edited Feb 22 '18 at 07:38

Linus

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answered Feb 22 '18 at 06:42

Shashank Pujari

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Hariharan · Answer 3 · 2014-03-14T05:03:17.023

5

Try this..

I guess you are extends is Fragment

So, you have to use getActivity().getPackageManager() like below

List<PackageInfo> packs = getActivity().getPackageManager().getInstalledPackages(0);

Or extends is BroadcastReceiver

In side onReceive you have to use context.getPackageManager() like below

List<PackageInfo> packs = context.getPackageManager().getInstalledPackages(0);

edited Mar 14 '14 at 05:03

answered Mar 14 '14 at 04:56

Hariharan

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score 4 · Answer 4 · answered Mar 14 '14 at 05:09

4

I think this may be due to Context

If you are using

Activity : Then you can directly access this method by importing android.content.pm.PackageManager;

If you are using Fragment : Then you need to provide getActivity() to avail method

I.E.

List<PackageInfo> packs = getActivity().getPackageManager().getInstalledPackages(0);

answered Mar 14 '14 at 05:09

Ronak Mehta

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@user3418401 If it works for you then you can mark and upvote it so any other developer can get solution quickly. – Ronak Mehta Apr 01 '14 at 05:09
@RonakMehta I m using AsyncTask, can you suggest what context I should use?? – Aashish Kumar Nov 25 '18 at 07:17
@Asahish, Please use Activity Context here. – Ronak Mehta Nov 25 '18 at 10:05

score 2 · Answer 5 · answered Mar 14 '14 at 04:59

2

you can also try context.getPackageManager() if you have context passed as a parameter in your class constructor eg for Broadcast receiver

answered Mar 14 '14 at 04:59

ARK

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score 1 · Answer 6 · answered Mar 14 '14 at 05:02

1

yep. if you extends fragment use getActivity().getPackageManager().getInstalledPackages(0); else context.getPackageManager().getInstalledPackages(0);

answered Mar 14 '14 at 05:02

Ashwin S Ashok

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score 0 · Answer 7 · answered Dec 15 '22 at 22:29

0

If using Jetpack Compose with Kotlin, use LocalContext.current.packageManager

answered Dec 15 '22 at 22:29

simpleuser

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Can't find getPackageManager() method in android

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