How to take screenshot and share it from program to social media(Facebook,Telegram and other)?

Issue

I make a screenshot on page and I want to share it to social media. I do not know how to share image to the social media. I know only how to share text, but I need to share image.Please help me to share screenshot from program

 <ContentPage.Content>
        <StackLayout HeightRequest="30" WidthRequest="30">

            <StackLayout x:Name="header">
                <Frame
                    Padding="3"
                    BackgroundColor="White"
                    BorderColor="#DBDBDB"
                    CornerRadius="15"
                    HasShadow="False">
                    <StackLayout Orientation="Horizontal">
                        <StackLayout
                            Margin="5,0,0,0"
                            HorizontalOptions="Start"
                            Orientation="Horizontal">

                            <StackLayout VerticalOptions="Center">
                                <Label
                                    FontSize="16"
                                    HorizontalOptions="Start"
                                    Text="USD"
                                    TextColor="Black" />
                                <Label
                                    FontSize="10"
                                    HorizontalOptions="Start"
                                    Text="US Dollar"
                                    TextColor="Black" />
                            </StackLayout>


                        </StackLayout>

                    </StackLayout>
                </Frame>
            </StackLayout>

            <Button x:Name="ShareButton" Text="Share" />
            <Image x:Name="result" />
        </StackLayout>
    </ContentPage.Content>



 public async void Button_Clicked(Object o,EventArgs e)
        {
            var image =await header.CaptureImageAsync();
            result.Source = ImageSource.FromStream(() => image);

        }

It is code how I make screenshot.Please help me to share image from program to social media

Solution

You can use Xamarin.Essentials for all that.

For example, if you want to share a screenshot you can save the screenshot to a file (demo code):

async Task<string> CaptureScreenshotAsync()
{
    var screenshot = await Xamarin.Essentials.Screenshot.CaptureAsync();
    var stream = await screenshot.OpenReadAsync();
    var file = Path.Combine(FileSystem.CacheDirectory, "screenshot.png");
    using (FileStream fs = File.Open(file, FileMode.CreateNew))
    {
        await stream.CopyToAsync(fs);
        await fs.FlushAsync();
    }
    return file;
}

and then share this file (demo code):

async Task ShareFile(string filename, string filepath) 
{
    await Share.RequestAsync(new ShareFileRequest()
            {
                Title = filename,
                File = new ShareFile(filepath)
            });
}

Note: You should make sure the file extension is correct. I experienced some problems sharing or opening files with no or wrong file extensions.

Answered By - AlexS