在UWP

时间:2016-08-22 10:37:39

标签: xaml uwp grid-layout

我正在创建一个应用程序,我希望修复某些网格行和列,而其他人则调整大小以适应窗口。我的问题是我无法在Universal Apps中执行此操作。

在WPF中,解决方案很简单:

<Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
    <Grid.RowDefinitions>
        <RowDefinition Height="50" /> <!-- This row is a fixed height -->
        <RowDefinition Height="*" MinHeight="200" /> <!-- This row is resizeable, but has a minimum height -->
        <RowDefinition Height="100" />
        <RowDefinition Height="20" />
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="20" /> <!-- This column has a fixed width -->
        <ColumnDefinition Width="*" MinWidth="300" /> <!-- These rows are resizeable, but have minimum widths -->
        <ColumnDefinition Width="*" MinWidth="300" />
        <ColumnDefinition Width="20" />
    </Grid.ColumnDefinitions>
</Grid>

当我在UWP中尝试此操作时,具有固定大小的行和列会调整大小,而带有星号的其他行保持固定。我尝试在固定的行和列上添加星号并删除预先存在的行和列。我认为在UWP中它被颠倒了,但这严重搞砸了我的应用程序并使其变得更糟。

我的解决方案是在UWP中尝试以下内容:

<Grid x:Name="pageGrid"
      Background="White">
    <Grid.RowDefinitions>
        <RowDefinition MaxHeight="20"
                       MinHeight="20"/>
        <RowDefinition Height="*"/>
        <RowDefinition MaxHeight="20"
                       MinHeight="20"/>
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition MaxWidth="20"
                          MinWidth="20"/>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition MaxWidth="260"
                          MinWidth="260"/>
        <ColumnDefinition MaxWidth="20"
                          MinWidth="20"/>
    </Grid.ColumnDefinitions>
</Grid>

这里的想法是在我的控件周围有20个像素宽度的固定边距。在这些边缘内有两个盒子:一个具有固定的宽度和可调整的高度,另一个在两个方向上调整大小。

尽管如此,我再次遇到了同样的问题,即边距调整大小但是可调整大小的&#39;盒子没有。

实际上是否有办法在使用通用Windows平台的网格中拥有固定和可调整大小的行和列?到目前为止,我还没有找到证据。

完整代码:

<Page
    x:Class="UniversalCamera.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:UniversalCamera"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">
    <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
          MinWidth="800"
          MinHeight="450"
          Width="800"
          Height="450">
        <Grid x:Name="pageGrid"
              Background="White">
            <Grid.RowDefinitions>
                <RowDefinition MaxHeight="20"
                               MinHeight="20"/>
                <RowDefinition Height="*"/>
                <RowDefinition MaxHeight="20"
                               MinHeight="20"/>
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition MaxWidth="20"
                                  MinWidth="20"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition MaxWidth="260"
                                  MinWidth="260"/>
                <ColumnDefinition MaxWidth="20"
                                  MinWidth="20"/>
            </Grid.ColumnDefinitions>
            <Border BorderThickness="2"
                    BorderBrush="Black"
                    CornerRadius="5"
                    Grid.Column="1"
                    Grid.Row="1"
                    Grid.ColumnSpan="2"
                    Margin="-10,-10,-10,-10"/>
            <Border BorderThickness="2"
                    BorderBrush="Black"
                    CornerRadius="5"
                    Grid.Column="1"
                    Grid.Row="1"
                    Margin="2,2,2,2">
                <Image x:Name="imageFrame"
                   HorizontalAlignment="Stretch"
                   VerticalAlignment="Stretch"/>
            </Border>
            <Canvas x:Name="controlCanvas"
                    HorizontalAlignment="Stretch"
                    VerticalAlignment="Stretch"
                    Grid.Column="2"
                    Grid.Row="1">
                <StackPanel x:Name="controlStack"
                            Canvas.Top="0"
                            Canvas.Left="0"
                            Width="260"
                            Orientation="Vertical">
                    <Button x:Name="startLiveButton"
                            Width="200"
                            Margin="0,5,0,0"
                            HorizontalAlignment="Center"
                            Content="Start Live"
                            Click="startLiveButton_Click"/>
                    <Button x:Name="stopLiveButton"
                            Width="200"
                            Margin="0,5,0,0"
                            HorizontalAlignment="Center"
                            Content="Stop Live"
                            Click="stopLiveButton_Click"/>
                    <Button x:Name="freezeVideoButton"
                            Width="200"
                            Margin="0,5,0,0"
                            HorizontalAlignment="Center"
                            Content="Freeze Video"
                            Click="freezeVideoButton_Click"/>
                    <Button x:Name="loadParameterButton"
                            Width="200"
                            Margin="0,5,0,0"
                            HorizontalAlignment="Center"
                            Content="Load Parameter"
                            Click="loadParameterButton_Click"/>
                    <CheckBox x:Name="autoWhiteCheckbox"
                              HorizontalAlignment="Center"
                              Width="200"
                              Margin="0,25,0,0"
                              Content="Auto White Balance"
                              Checked="autoWhiteCheckbox_Checked"
                              Unchecked="autoWhiteCheckbox_Unchecked"/>
                    <CheckBox x:Name="autoGainCheckbox"
                              HorizontalAlignment="Center"
                              Width="200"
                              Margin="0,5,0,0"
                              Content="Auto Gain Balance"
                              Checked="autoGainCheckbox_Checked"
                              Unchecked="autoGainCheckbox_Unchecked"/>
                </StackPanel>
            </Canvas>
        </Grid>
    </Grid>
</Page>

此代码旨在将额外的行和列作为主控件周围的边距。这些应固定在20像素。当我运行代码时,边距伸展,中央框保持固定;这与我的意图相反:

enter image description here enter image description here (当窗口调整大小时,黑色轮廓区域保持相同的大小,而边距会拉伸以适合窗口。)

1 个答案:

答案 0 :(得分:3)

您的主网格固定为800 x 450像素。如果删除该限制,网格将适当拉伸

Stretched UI

更新的代码:

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
      MinWidth="800"
      MinHeight="450">
    <Grid x:Name="pageGrid"
...