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Compare Android ApplicationInfo so that collections of them can be sorted
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public static class ApplicationInfoComparer implements Comparator<ApplicationInfo> { | |
private PackageManager pm1; | |
ApplicationInfoComparer(PackageManager pm) { | |
pm1 = pm; | |
} | |
@Override | |
public int compare(ApplicationInfo x, ApplicationInfo y) { | |
if (null == pm1) | |
return 0; | |
if (null == x || null == x.loadLabel(pm1)) | |
return -1; | |
if (null == y || null == y.loadLabel(pm1)) | |
return 1; | |
try { | |
return compare(x.loadLabel(pm1).toString(), y.loadLabel(pm1).toString()); | |
} catch (NullPointerException ex) { | |
return 0; | |
} | |
} | |
// Compares two strings lexicographically. Returns an integer indicating whether this string is greater than (result is > 0), | |
// equal to (result is = 0), or less than (result is < 0) the argument. | |
private static int compare(String a, String b) { | |
return a.compareTo(b); | |
} | |
} |
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// get list of installed applications | |
List<ApplicationInfo> list_user_app = pm1.getInstalledApplications(0); | |
// sort the list using the comparer | |
Collections.sort(list_user_app, new ApplicationInfoComparer(pm1)); | |
// list_user_app is now sorted |
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