Xamarin & Multiple Filepicker - ios

Question

i'm building a project on Xamarin. Right now i have a big issue. I need to browse user's computer for upload any file. He can of course upload multiple files. As i know Xamarin does not provide browsing of all the system but just its. So i tried to find a way with some drag n drop, i didn't find. I tried a filepicker but he let me pick just one file (my client would upload 100 files at once) so it doesn't fit to what i need. Finally i decided to do my own browsing system but it takes forever to browse because of the UI. Do you have any solution for me ? I would appreciate a package with a filepicker that allow multiple files.
Thanks

Answer 1

Have you tried the class FileOpenPicker in UWP ?
It supports to pick multiple files , check the method FileOpenPicker.PickMultipleFilesAsync.
Sample
Define interface in Forms project
public interface MyFilePicker
{
Task OpenFilePickerAsync();
}
Implement in UWP project
[assembly: Dependency(typeof(UWPFilePicker))]
namespace App24.UWP
{
class UWPFilePicker : MyFilePicker
{
public async Task OpenFilePickerAsync()
{
var openPicker = new FileOpenPicker();
openPicker.ViewMode = PickerViewMode.Thumbnail;
openPicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
openPicker.FileTypeFilter.Add(".jpg");
openPicker.FileTypeFilter.Add(".jpeg");
openPicker.FileTypeFilter.Add(".png");
IReadOnlyList<StorageFile> files = await openPicker.PickMultipleFilesAsync();
if (files.Count > 0)
{
StringBuilder output = new StringBuilder("Picked files:\n");
// Application now has read/write access to the picked file(s)
}
else
{
return;
}
}
}
}
Call it in Forms project
private async void Button_Clicked(object sender, EventArgs e)
{
MyFilePicker service = DependencyService.Get<MyFilePicker>();
await service.OpenFilePickerAsync();
}