带三个色谱柱的uipickerview-xamarin c#

我想要一个包含三列的UIPickerView，但它不工作。 我找不到错误，请有人帮忙。 代码如下：

static string[] nomesPeso = new string[]
{
    "Back Squat",
    "Front Squat",
    "OHS - Overhead Squat"
};

static string[] nomesUnidades = new string[]
{
    "Reps",
    "Kgs",
    "Lbs",
    "Metros"
};

static string[] nomesRepeticoes = new string[]
{
    "1 RM",
    "2 RM",
    "3 RM"
};

public override nint GetComponentCount(UIPickerView v)
{
    return 3;
}

public override nint GetRowsInComponent(UIPickerView pickerView, nint component)
{
    switch (component)
    {
        case 0:
            return nomesPeso.Length;
        case 1:
            return nomesRepeticoes.Length; 
        case 2:
            return nomesUnidades.Length;
        default:
            throw new NotImplementedException();
    }
}

public override string GetTitle(UIPickerView picker, nint row, nint component)
{
    switch (component)
    {
        case 0:
            return nomesPeso[row];
        case 1:
            return nomesRepeticoes[row]; 
        case 2:
            return nomesUnidades[row];
        default:
            throw new NotImplementedException();
    }
}

---

您可以通过覆盖

UIPickerViewDelegate

的

GetComponentWidth

来调整列宽：

class MyPickerViewDelegate : UIPickerViewDelegate
{
    public override nfloat GetComponentWidth(UIPickerView pickerView, nint component)
    {
        // equal size for every column
        return pickerView.Frame.Width/3;
    }
}

然后在

UIPickerView

myPickerView.Delegate = new MyPickerViewDelegate();

此代码将列平均分布。当然，您可以使用

组件

参数为每一列返回一个自定义宽度