Android PackageInfo get package version name

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;

public class Main {
    public static String getVersionName(Context context) {
        try {/*from  w w  w. j a v  a 2s  .co m*/
            String pkName = context.getPackageName();
            PackageManager pkg = context.getPackageManager();
            PackageInfo info = pkg.getPackageInfo(pkName, 0);
            String versionName = info.versionName;
            return versionName;
        } catch (Exception e) {

        }
        return "";

    }
}