Apps android lastModified is very slow with many files

[Paulo Tacio]

I am creating an image gallery application and you want to sort images by date, but when I use the method lastModified() 5000 files in folders or more, the list becomes very slow. My question is, as the native Android Gallery and other apps like QuickPic can do the listing by date so fast, even with many files?

 

[Unforgiven]

Application Development thread moved to the Development forum for better exposure.