2018年のXamarinの概要と活用方法
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The document contains code snippets from different platforms showing login functionality: - An Android code snippet shows a button click handler starting a new activity - An iOS code snippet connects a button to login logic - A Xamarin.Forms code snippet defines a login page with an image, label, entry and button laid out in a stack layout
![[Register ("TodoListViewController")]
partial class TodoListViewController
{
[Outlet]
[GeneratedCode ("iOS Designer", "1.0")]
UIButton LoginButton { get; set; }
...
}
LoginButton.TouchUpInside += (object sender,
EventArgs e) => {
// TODO: add logic here
}
ViewController.designer.cs
ViewController.cs](https://image.slidesharecdn.com/20180323manabiya-180323050347/85/2018-Xamarin-12-320.jpg)
2018年のXamarinの概要と活用方法
- 8. button.Click += async (sender, e) => { var client = new HttpClient(); using (var reader = new StreamReader(await client.GetStreamAsync("xxx"))) { var deserializer = new XmlSerializer(typeof(Rss)); var latest = deserializer.Deserialize(reader) as Rss; var feed = latest.Channel.Items .Where(x => x.Link.Contains("xamarin")) .Select(x => x.Title).ToList(); } };
- 12. [Register ("TodoListViewController")] partial class TodoListViewController { [Outlet] [GeneratedCode ("iOS Designer", "1.0")] UIButton LoginButton { get; set; } ... } LoginButton.TouchUpInside += (object sender, EventArgs e) => { // TODO: add logic here } ViewController.designer.cs ViewController.cs
- 16. public class MainActivity : Activity { ... void OnClick(object sender, EventArgs e) { var intent = new Intent(this, typeof(Activity2)); base.StartActivity(intent); } }
- 25. <?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="App1.Views.XamlPage" ... Title="Login Page"> <StackLayout Padding="8" Spacing="4"> <Image Source="/Images/Xamagon.png" HeightRequest="300" WidthRequest="300" /> <Label FontSize="Large" Text="Xamarin.Forms Login Page" /> <Entry x:Name="entry" Text="{Binding Name}" /> <Button x:Name="loginButton" Clicked="LoginButton_Clicked" Text="Login" /> </StackLayout> </ContentPage> public class CSharpPage : ContentPage { public CSharpPage() { var image = new Image { ... }; var label = new Label {... }; var entry = new Entry { ... }; var loginButton = new Button {... }; loginButton.Clicked += LoginButton_Clicked; Title = "Login Page"; Content = new StackLayout { Children = { image, label, entry, loginButton }, }; } }