使用 C# 在 Xamarin Forms 中嵌入图像 [重复]

Question

伙计们，我在尝试将图像作为特定页面的背景时遇到了一些麻烦。我试图通过这里提到的嵌入式方法来做到这一点：https://developer.xamarin.com/guides/xamarin-forms/user-interface/images/#Embedded_Images .由于某种原因，当我运行该应用程序时，它崩溃了。我认为'BackgroundImage ='行出了点问题，因为当我这样做时我有点猜到了。当我注释掉该行时，应用程序加载正常，只是没有背景图像。我使用 build action = content 并作为设置复制到输出目录...

public class LoginPage : ContentPage
{
    Entry emailBox = new Entry();
    Entry passwordBox = new Entry();
    Button createAccount = new Button();
    Button forgotPassword = new Button();
    StackLayout layout = new StackLayout();
    Image embeddedImage = new Image { Source = ImageSource.FromResource("Charity.Properties.hands-426x640.jpg") };

    public LoginPage()
    {
        Title = "Login";
        BackgroundColor = Color.LightPink;
        BackgroundImage = "Charity.Properties.hands-426x640.jpg";

        emailBox.Placeholder = "email";
        emailBox.BackgroundColor = Color.LightPink;
        emailBox.PlaceholderColor = Color.HotPink;

        passwordBox.Placeholder = "password";
        passwordBox.BackgroundColor = Color.LightPink;
        passwordBox.PlaceholderColor = Color.HotPink;
        passwordBox.IsPassword = true;

        createAccount.Text = "create an account";
        createAccount.TextColor = Color.HotPink;
        createAccount.Font = Font.SystemFontOfSize(NamedSize.Medium);
        createAccount.BorderWidth = 0;
        createAccount.HorizontalOptions = LayoutOptions.Center;
        createAccount.VerticalOptions = LayoutOptions.CenterAndExpand;

        forgotPassword.Text = "recover password";
        forgotPassword.TextColor = Color.HotPink;
        forgotPassword.Font = Font.SystemFontOfSize(NamedSize.Medium);
        forgotPassword.BorderWidth = 0;
        forgotPassword.HorizontalOptions = LayoutOptions.Center;
        forgotPassword.VerticalOptions = LayoutOptions.CenterAndExpand;

        layout.VerticalOptions = LayoutOptions.End;
        layout.BackgroundColor = Color.LightPink;

        layout.Children.Add(emailBox);
        layout.Children.Add(passwordBox);
        layout.Children.Add(createAccount);
        layout.Children.Add(forgotPassword);

        Content = layout;
    }
}

Answer 1

这很有效，经过多次试验和错误，我只需要将图像添加到 .Droid(drawable) 和 .iOS(resources) 文件夹。我之前没有将它添加到iOS文件夹中，因此当我在iOS模拟器上运行时它一直在崩溃。

    Image image = new Image();

    public LoginPage()
    {
        Title = "Login"; 
        BackgroundImage = "hands426x640.jpg";}