标签/选择器中的自动换行不正确

Question

有时我在Android中的标签或摘录中的文字会在标签结束之前换行。它不会每次都发生，但是当它发生时，文本最初会正确显示，然后很快就会被错误地重新渲染。这只发生在视图位于网格中时，但我无法确定原因是什么。使用“显示布局边界”选项，我可以看到标签的宽度是正确的并且不会改变，它只是不正确的自动换行。

ContentView子类构造函数中的相关代码：

Grid _contentGrid = new Grid()
{
    RowDefinitions = new RowDefinitionCollection()
    {
        new RowDefinition() { Height = new GridLength(1, GridUnitType.Auto) },
        new RowDefinition() { Height = new GridLength(1, GridUnitType.Auto) },
        new RowDefinition() { Height = new GridLength(1, GridUnitType.Auto) },
        new RowDefinition() { Height = new GridLength(1, GridUnitType.Auto) },
    },
    ColumnDefinitions = new ColumnDefinitionCollection()
    {
        new ColumnDefinition() { Width = 48 },
        new ColumnDefinition() { Width = new GridLength(1, GridUnitType.Star) },
    },
    BackgroundColor = Color.Transparent,
    Padding = new Thickness(16, 16, 16, 16),
    ColumnSpacing = 16,
    RowSpacing = 8,
    HorizontalOptions = LayoutOptions.FillAndExpand
};

Label _questionLabel = new Label()
{
    Text = "Do you want to update the instrument setup?",
    TextColor = Color.FromHex(Colours.TextGrey),
    HorizontalOptions = LayoutOptions.FillAndExpand,
    XAlign = TextAlignment.Start,
    WidthRequest = 344

};

_contentGrid.Children.Add(_questionLabel, 0, 2, 3, 4);

DialogView dialogView = new DialogView()
{
    TopView = TitleLabel,
    MiddleView = _contentGrid,
    BottomView = ButtonGrid,
    TopColour = Color.FromHex(Colours.Blue),
    MiddleColour = Color.White,
    BottomColour = Color.White,
    MiddleHeight = 150,
};

Grid Holder = new Grid()
{
    ColumnDefinitions = new ColumnDefinitionCollection()
    {
        new ColumnDefinition() { Width = new GridLength(1, GridUnitType.Star) },
        new ColumnDefinition() { Width = 368 },
        new ColumnDefinition() { Width = new GridLength(1, GridUnitType.Star) },
    },
    RowDefinitions = new RowDefinitionCollection()
    {
        new RowDefinition() { Height = new GridLength(1, GridUnitType.Star) },
        new RowDefinition() { Height = new GridLength(1, GridUnitType.Auto) },
        new RowDefinition() { Height = new GridLength(1, GridUnitType.Star) },
    },
    BackgroundColor = Color.FromHex("b0000000")
};

Holder.Children.Add(dialogView, 1, 1);
this.Content = Holder;

_questionLabel文本仅显示“你想要”