Show list of items in Xamarin forms using a REST service
This application shows how to display a item list by calling a REST service deployed in Azure
Item Service Controller returns list of items like this.
private IItemService _itemService;
public ItemsController(IItemService itemService)
{
_itemService = itemService;
}
// GET: api/Item
[HttpGet]
public IEnumerable<Item> Get()
{
var items = _itemService.GetItems();
return items;
}
Item list view shows as below,
<ListView x:Name="listView" SeparatorColor="Green">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<ViewCell.View>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Label Grid.Row="0" Grid.Column="0" Text="{Binding Name}" FontSize="Medium"
TextColor="#065C2B"/>
<Label Grid.Row="0" Grid.Column="1" Text="{Binding Price}" FontSize="Small"
TextColor="#065C2B"/>
<Label Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2"
Text="{Binding Description}" FontSize="Small" TextColor="#6FCF97"/>
</Grid>
</ViewCell.View>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>You can call the display list method from the code behind file like this,
class PizzaService : IPizzaService
{
HttpClient client;
private string url = "https://pizzastore1.azurewebsites.net/api/item";
public PizzaService()
{
client = new HttpClient();
client.MaxResponseContentBufferSize = 256000;
}
public async Task<List<Item>> GetPizzasAsync()
{
List<Item> pizza = new List<Item>();
var uri = new Uri(string.Format(url, string.Empty));
try
{
var response = await client.GetAsync(uri);
if (response.IsSuccessStatusCode)
{
var content = await response.Content.ReadAsStringAsync();
pizza = JsonConvert.DeserializeObject<List<Item>>(content);
}
}
catch (Exception ex)
{
Debug.WriteLine(@"ERROR {0}", ex.Message);
}
return pizza;
}
}