FilePickerPage.xaml

<views:BasePage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
                xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
                xmlns:views="clr-namespace:Samples.View"
                xmlns:viewmodels="clr-namespace:Samples.ViewModel"
                x:Class="Samples.View.FilePickerPage"
                Title="File Picker">
    <views:BasePage.BindingContext>
        <viewmodels:FilePickerViewModel />
    </views:BasePage.BindingContext>

    <Grid RowDefinitions="Auto,*">
        <Label Text="Pick files from storage." FontAttributes="Bold" Margin="12" />

        <ScrollView Grid.Row="1">
            <StackLayout Padding="12,0,12,12" Spacing="6">
                <Button Text="Pick file" Command="{Binding PickFileCommand}" />
                <Button Text="Pick image" Command="{Binding PickImageCommand}" />
                <Button Text="Pick pdf" Command="{Binding PickPdfCommand}" />
                <Button Text="Pick custom type" Command="{Binding PickCustomTypeCommand}" />
                <Button Text="Pick image and send email" Command="{Binding PickAndSendCommand}" />
                <Button Text="Pick multiple files" Command="{Binding PickMultipleFilesCommand}" />

                <Label Text="{Binding Text}" HorizontalOptions="FillAndExpand" />

                <Image Source="{Binding Image}" IsVisible="{Binding IsImageVisible}"
                       HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" />
            </StackLayout>
        </ScrollView>
    </Grid>

</views:BasePage>