How to sort out a List<PackageInfo> in android..?

Question

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

How to Sort the PackageInfo, i did ApplicationInfo thats working fine

Collections.sort(installedList, new ApplicationInfo.DisplayNameComparator(packageManager));

but i want implement PackageInfo also..

i'm not sure how to do.. Please any one help me...!

Answer 1

Collections.sort method takes two parameters:

1. The list you want to sort
2. And a Comparator object used to compare elements which type is the type of elements in your list.

In your case you want to implement a Comparator<PackageInfo>. An example supposing a PackagInfo has a getName() method:

new Comparator<PackagInfo>() {
    @Override
    public int compare(PackagInfo arg0, PackagInfo arg1) {
      return arg0.getName().compareTo(arg1.getName());
    }
 };

Another solution is to get one from somewhere but I don't know Android well. Looking at the piece of code you provided, maybe you have a PackageInfo.xxxx static field which type is Comparator<PackageInfo> ?