Xamarin.Essentials Unable to select images in "File Picker" on iOS - xamarin.ios

Question

When I try to select an image using the "File Picker" in Xamarin.Essentials, I can't select it only in the iOS simulator.
Xamarin.Essentials: File Picker
https://learn.microsoft.com/en-us/xamarin/essentials/file-picker?context=xamarin%2Fandroid&tabs=ios
var options = new PickOptions
{
PickerTitle = "Please select files",
FileTypes = FilePickerFileType.Images,
};
IEnumerable<FileResult> results = await FilePicker.PickMultipleAsync(options);
FilePickerFileType.Jpeg setting did not work for me. In addition, I could not select a PDF file with FilePickerFileType.Pdf settings.
However, when I launched the Android simulator, I was able to select the image successfully; only the iOS simulator was unable to select it.
Since PickerTitle is also not reflected, it seems that options itself is not enabled.
Also, even if I modified the customFileType area as pointed out in the answer below, it still did not allow me to select files.
var customFileType =
new FilePickerFileType(new Dictionary<DevicePlatform, IEnumerable<string>>
{
{DevicePlatform.iOS, new[] { "com.adobe.pdf" , "public.jpeg" } },
});
var options = new PickOptions
{
PickerTitle = "Please select files",
//FileTypes = FilePickerFileType.Images,
FileTypes = customFileType,
};
IEnumerable<FileResult> results = await FilePicker.PickMultipleAsync(options);
Do I need to set anything else?
Apple M1(macOS Monterey)
Visual Studio for Mac 8.10.17
Xamarin.Essentials 1.7.0
Xamarin.Forms 5.0.0.2291

Answer 1

Since your FileTypes property is set to FilePickerFileType.Images, pdf files are not allowed to select. So when setting FileTypes, you need to add it.
Here is the background code:
private void Button_Clicked(object sender, EventArgs e)
{
Task<FileResult> results = PickAndShow();
}
async Task<FileResult> PickAndShow()
{
var customFileType =
new FilePickerFileType(new Dictionary<DevicePlatform, IEnumerable<string>>
{
{DevicePlatform.iOS, new[] { "com.adobe.pdf" , "public.image" } },
});
try
{
var result = await FilePicker.PickAsync(new PickOptions
{
PickerTitle = "Please select files",
FileTypes = customFileType,
}) ;
if (result != null)
{
Text = $"File Name: {result.FileName}";
if (result.FileName.EndsWith("jpg", StringComparison.OrdinalIgnoreCase) ||
result.FileName.EndsWith("png", StringComparison.OrdinalIgnoreCase))
{
var stream = await result.OpenReadAsync();
Image = ImageSource.FromStream(() => stream);
}
}
return result;
}
catch (Exception ex)
{
// The user canceled or something went wrong
}
return null;
}
The main difference is that I create a customFileType and use it when setting FileTypes.