如何更改底部标签的背景色 [英] How do I change bottom tabs background color

问题描述

我正在研究Xamarin.Forms.我的Android项目中有底部标签.选项卡显示的默认背景色为浅灰色.我需要将标签的背景色更改为我的首选颜色.但是我不能这样做. 我正在使用的以下代码

I am working on Xamarin.Forms. I have bottom tabs in my android project. Tabs are showing default background color something light gray. I need to change tabs background color to my preferred color. But I am not able to do so. The code below I am using

MainPage.xaml文件

<?xml version="1.0" encoding="utf-8"?>
<MyTabbedPage 
 xmlns="http://xamarin.com/schemas/2014/forms" 
 xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
 xmlns:local="clr-namespace:edTheSIS"    
 x:Class="edTheSIS.ParentDashboard">
<local:DairyTabPage  Icon="icon1"></local:DairyTabPage>
<local:MykidTabPage  Icon="icon2" ></local:MykidTab>
<local:EventsPage   Icon="icon3"></local:Events>
<local:AboutPage    Icon="icon4"></local:About>
</MyTabbedPage>

MyTabbedPage.cs文件

public class MyTabbedPage : Xamarin.Forms.TabbedPage
{
    public MyTabbedPage()
    {
        On<Xamarin.Forms.PlatformConfiguration.Android>().SetToolbarPlacement(ToolbarPlacement.Bottom);
    }
} 

输出我正在获取屏幕截图:

Output I am getting screenshot:

推荐答案

您可以尝试一下.

On<Xamarin.Forms.PlatformConfiguration.Android>().SetToolbarPlacement(ToolbarPlacement.Bottom);

On<Xamarin.Forms.PlatformConfiguration.Android>().SetBarSelectedItemColor(Color.White); --> to change the selected color tabitem

On<Xamarin.Forms.PlatformConfiguration.Android>().SetBarItemColor(Color.Gray); --> Gray is the default color but you can also change this to any color.

示例:

On<Xamarin.Forms.PlatformConfiguration.Android>().SetBarItemColor(Color.Green);

如果您使用的是FormsAppCompatActivity，则可以使用

If you are using FormsAppCompatActivity, you can use

app:tabIndicatorColor="#FF3300" <!-- Set indicator color here, sets it to red-->

修改

您需要创建一个自定义渲染器.

You'll need to create a custom renderer.

在github上检查此示例.

Check this sample on github.

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