C# Windows Phone 8 WP8 开发，取得手机萤幕大小两种方法。

原文:C# Windows Phone 8 WP8 开发，取得手机萤幕大小两种方法。

一般我们在开发Windows Phone App时，需要取得萤幕的大小来自定义最佳化控制项的大小，但是开如何取得萤幕的大小呢??

本篇文章将引导您取得手机萤幕大小两种方法。?

方法一:

透过舞台上最外层的控制项来取得萤幕的大小，

该方法有缺点但是当的调整可以完全没有误差的取得萤幕大小

缺点1:若在Xaml中的SystemTray.IsVisible属性没有设定为False，则取到高会扣掉最上方的状态栏(应该是这样称呼…就是最上面有电池 WIFI 电信的Bar)

缺点2:若该控制项有设定Margin 或 padding 则取到的长宽可能会缩小。?

首先取得在舞台上最外层的控制项名称?

<Grid x:Name="LayoutRoot">

[code]
.....

</Grid>

[/code]
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;}
.csharpcode .lnum { color: #606060; }]]>?

接着在C#程式码中写下?

public MainPage()

[code]
{

InitializeComponent();

?

this.LayoutUpdated += (sender, e) => {

Debug.WriteLine("宽"+LayoutRoot.ActualWidth);

Debug.WriteLine("高" + LayoutRoot.ActualHeight);

};

?

}

[/code]
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;}
.csharpcode .lnum { color: #606060; }]]>?

则在【输出】是双就会显示萤幕的大小罗!?

宽480

[code]
高800

[/code]
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;}
.csharpcode .lnum { color: #606060; }]]>?

参阅 : C# Windows Phone 8 解决【取得控制项 Height 、Width 总是 0】，并取得实际宽高数据。?

方法二:

在C#程式码中写下:?

Debug.WriteLine("宽"+(int)Application.Current.Host.Content.ActualWidth);

[code]
Debug.WriteLine("高" + (int)Application.Current.Host.Content.ActualHeight);

[/code]
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;}
.csharpcode .lnum { color: #606060; }]]>?

则在【输出】是双就会显示萤幕的大小罗!?

宽480

[code]
高800

[/code]
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;}
.csharpcode .lnum { color: #606060; }]]>?????

如此一来就学会了取得手机萤幕大小的两种方法罗!?

References : Windows Phone 8: Multiple Screen Resolutions?

文章中的叙述如有观念不正确错误的部分，欢迎告知指正 谢谢

转载请注明出处，并且附上本篇文章网址 !? 感谢。

SUKI

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ActualHeight

ActualWidth

C#

ScreenSize

Windows Phone 8

WP8

Xaml

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