Question

在我的应用更改方向时出现问题。该应用程序很简单，只有一个网格（“contentpanel”）带有边距和称为“包装器”的嵌套网格，具有恒定的20px边距。

包装器的宽度应为728px - 20px *2 = 688。

但是，当我切换到纵向方向，然后返回横向方向时，虽然没有改变，宽度现在是728px。

图片：http://imageshack.us/photo/my-images/713/15445549.jpg

XAML：

<phone:PhoneApplicationPage
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
    xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    x:Class="ManipulationPhoto.TestPhoto2"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeNormal}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="PortraitOrLandscape"  Orientation="Portrait"
    mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"
    shell:SystemTray.IsVisible="True">

    <Grid x:Name="LayoutRoot" Background="Transparent">
        <Grid.RowDefinitions>
            <RowDefinition Height="176"/>
            <RowDefinition Height="592*"/>
        </Grid.RowDefinitions>
        <StackPanel  x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
            <TextBlock x:Name="uiDebug" Text="APPLICAZIONE" Style="{StaticResource PhoneTextNormalStyle}"/>
            <Button Content="Button" Height="71" Name="button1" Width="160" Click="button1_Click" />
        </StackPanel>
        <Grid Background="AliceBlue" x:Name="ContentPanel" Grid.Row="1" Margin="0,0,0,0">
            <Grid Name="uiWrapper" Background="Brown"  Margin="20,20,20,20">
            </Grid>
        </Grid>
    </Grid>
</phone:PhoneApplicationPage>

C＃

public TestPhoto2()
{
    InitializeComponent();
    this.OrientationChanged += new EventHandler<OrientationChangedEventArgs>(TestPhoto2_OrientationChanged);
}

void TestPhoto2_OrientationChanged(object sender, OrientationChangedEventArgs e)
{
    uiDebug.Text = "h:" + uiWrapper.RenderSize.Height + " l: " + uiWrapper.RenderSize.Width;
}

Answer 1

在您的事件处理程序中，您的控件尚未调整大小。您收到OLD尺寸。 Dispatcher一切都适合我：

Dispatcher.BeginInvoke(() =>
{
    uiDebug.Text = "h:" + uiWrapper.RenderSize.Height + " l: " + uiWrapper.RenderSize.Width;
});

wp7奇怪的行为改变方向

1 个答案: