Sort Arraylist in Android

Question

I'm trying to sort an ArrayList in my Android app, but its throwing an exception. Here's the part of my code where it happens:

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

Does anybody have any ideas?

What kind of error? Post your logcat

Egor
– Egor

2011-07-19 06:58:03 +00:00
Commented Jul 19, 2011 at 6:58 — Egor
– Egor, Commented Jul 19, 2011 at 6:58
Show us the error or exception you're getting.

Flo
– Flo

2011-07-19 06:58:15 +00:00
Commented Jul 19, 2011 at 6:58 — Flo
– Flo, Commented Jul 19, 2011 at 6:58
Have you try to use in-built sort function?

Manoj Savalia
– Manoj Savalia

2011-12-14 10:31:24 +00:00
Commented Dec 14, 2011 at 10:31 — Manoj Savalia
– Manoj Savalia, Commented Dec 14, 2011 at 10:31

JamesSugrue · Accepted Answer · 2012-08-13 23:26:35Z

3

packs contains PackageInfo objects, and sort can not find a natural order for those is my best guess. If you want to sort, use a Comparator with the sort which defines what you want to sort the PackageInfo objects on.

edited Aug 13, 2012 at 23:26

JamesSugrue

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answered Jul 19, 2011 at 7:02

MrJre

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Android · Accepted Answer · 2011-07-19 07:14:13Z

2

sorting
another example
one more
this also
may above link helpful to you Happy Coding..:):) thanks Pragna

answered Jul 19, 2011 at 7:14

Android

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Comments

BenMorel · Accepted Answer · 2014-06-14 09:18:24Z

2

here is a simple example of How to sort array in android?.

String[] array = new String[]{"one","two","three","four"};
Arrays.sort(array);

edited Jun 14, 2014 at 9:18

BenMorel

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answered Jul 19, 2011 at 6:57

Niranj Patel

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