有三列的uipickerview xamarin c#
有三列的uipickerview xamarin c#
提问于 2016-04-04 16:32:05
我想要一个有三列但不能工作的UIPickerView。我找不到错误，有人能帮忙吗？以下是代码：
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();
}
}回答 1
Stack Overflow用户
回答已采纳
发布于 2016-04-04 17:15:43
可以通过重写GetComponentWidth的UIPickerViewDelegate来调整列的宽度。
class MyPickerViewDelegate : UIPickerViewDelegate
{
public override nfloat GetComponentWidth(UIPickerView pickerView, nint component)
{
// equal size for every column
return pickerView.Frame.Width/3;
}
}然后在您的UIPickerView上设置它
myPickerView.Delegate = new MyPickerViewDelegate();此代码分发相等的列。当然，您可以使用component参数为每一列返回自定义宽度。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/36408085
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