Csharp 毛伊岛使用列表创建多个按钮

这里的问题是，您设置了View的Content或循环的Page inside，这意味着您将用每次迭代替换它.

要解决此问题，您需要将Add()个项目添加到StackLayout.Children，而不是每次都用新内容替换:

private void CreateButton()
{
    string names = "1;2;3";
    var list = names.ToString().Split(';');

    var stackLayout = new StackLayout();

    for (int i = 0; i < list.Length; i++)
    {
        Label lblName = new Label { Text = list[i].ToString() };
        var counter = 0;
        Label lblCounter = new Label
        {
            Text = $": {counter}",            
        };
        Button btnAdd = new Button
        {
            Text = $"{list[i]}: add",
            BackgroundColor = Colors.Green,
            BorderColor= Colors.Black,
            Command = new Command
            (
                execute: async() =>
                {
                    counter += 1;
                    lblCounter.Text = $": {counter.ToString()}";
                }
            )
        };
        Button btnRemove = new Button
        {
            Text = $"{list[i]}: remove",
            BackgroundColor = Colors.Red,
            BorderColor = Colors.Black,
            Command = new Command
            (
                execute: async () =>
                {
                    counter -= 1;
                    if (counter <= 0)
                    {
                        counter = 0;
                    }
                    lblCounter.Text = $": {counter.ToString()}";
                }
            )
        };

        stackLayout.Children.Add(lblName);
        stackLayout.Children.Add(lblCounter );
        stackLayout.Children.Add(btnAdd);
        stackLayout.Children.Add(btnRemove);
    }

    Content = stackLayout;
}

我认为您也可以使用Add()扩展方法直接将项目添加到stackLayout中:

stackLayout.Add(btnAdd);