Question

IThe scenario is that my application search all installed application in order to determine versions of those applications. Then store name of the application with its versions on the same file. If new version of the application is available, then give notification to the user. The question is “how can I learn the version of the other application from my application ?”

Thanks for all your help

Answer 1

Something like this should work to get the current version:

List<PackageInfo> packages = getPackageManager().getInstalledPackages();

for(int i=0;i<packages.size();i++)
{
    int version = packages.get(i).versionCode;
    // do whatever with it here
}

Getting the most recent version in the Play Store doesn’t really work, though. Like A–C said, you could check versionName instead, and just notify as updated if the two aren’t exactly the same(don’t worry about higher/lower, just inequality).