Show image from URL Xamarin.Forms

问题

I am using this code to show image with URL

.xaml

    <?xml version="1.0" encoding="UTF-8"?>
    <ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="LandAHand.VolunteerView">
        <ContentPage.Content>
             <AbsoluteLayout BackgroundColor="Maroon">
                 <Image x:Name="backgroundImage" AbsoluteLayout.LayoutBounds="0,0,1,1"   AbsoluteLayout.LayoutFlags="All" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Aspect="AspectFill"/>
             </AbsoluteLayout>
        </ContentPage.Content>
    </ContentPage>

.cs

using System;
using System.Collections.Generic;

using Xamarin.Forms;

namespace LandAHand
{
    public partial class VolunteerView : ContentPage
    {
        public VolunteerView()
        {
            InitializeComponent();
            backgroundImage.Source = new UriImageSource
            {
                Uri = new Uri("https://s9.postimg.org/aq1jt3fu7/handshake_87122244_std.jpg"),
                CachingEnabled = true,
                CacheValidity = new TimeSpan(5, 0, 0, 0)
            };
        }
    }
}

This code is successfully working with iOS but not working with android.

回答1:

Well you can do this thing easier with your Xaml just make your xaml like this

<Image x:Name="backgroundImage" Source="https://s9.postimg.org/aq1jt3fu7/handshake_87122244_std.jpg" AbsoluteLayout.LayoutBounds="0,0,1,1"   AbsoluteLayout.LayoutFlags="All" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Aspect="AspectFill"/>

And remove the code related in the code behind. The cashing is enabled by default for 24 hours

回答2:

It's not working because you use a https url. For fix it, you should be configure your Android Project like this : In Project Options > Android Options, click Advanced Options HttpClient implementation : choose Android SSL/TLS implementation : choose Native TLS 1.2+

https://docs.microsoft.com/en-us/xamarin/android/app-fundamentals/http-stack?tabs=windows

And update all Xamarin.Android packages

来源：https://stackoverflow.com/questions/38910715/show-image-from-url-xamarin-forms