“取消选择”一个在TabHost标签 [英] 'Unselect' a tab in a TabHost

问题描述

我有一个TabHost持有5个选项卡。 据我所看到的，必须有一个选项卡始终选择。

I have a TabHost holding 5 tabs. As far as I can see, there has to be one tab selected at all times.

我需要一种方法来取消选择所有的标签，以便没有人会被选中。

I need a way to unselect all my tabs so none will be selected.

如果该tabhost是由一般意味着有一个标签在任何时候选择， 我怎样才能让它出现（UI而言），如果标签没有被选中？

If the tabhost is meant by general to have one tab selected at all times, how can I make it appear (UI speaking) as if the tab isn't selected?

推荐答案

这是不可能的AFAIK。但是，是的，你可以设置所选择的选项卡的颜色看起来就像是选择，而当你想它正常显示，以用户设置的留白的布局设计在它通过管理，当你把它未选中，并设立正常布局的全局变量。但是，这是怎样的一个把戏。

This is not possible AFAIK. but yes,you can set the selected tab's color to look like it is unselected and set a blank layout over it by managing a global variable when you make it 'unselected' and setting up normal layout when you want it to be shown normally to user. But this is kind of a trick.

希望，你明白我的意思！

Hope,you get my point!

编辑：

假设你已经设定字符串什么=消失放在你的code，以显示其未选择的，然后就可以使用这个功能来改变颜色标签：

Suppose you have set String what="disappear" somewhere in your code to show it 'unselected',then you can use this function to change color of tab:

Main.class：

//Change The Backgournd Color of Tabs
    public void setTabColor(TabHost tabhost) {


        for(int i=0;i<tabhost.getTabWidget().getChildCount();i++)
        {
                tabhost.getTabWidget().getChildAt(i).setBackgroundColor(Color.parseColor("#FFFFFF"))); //unselected white colored                   
        }

            if(!what.equals("disappear"))
                 tabhost.getTabWidget().getChildAt(tabhost.getCurrentTab()).setBackgroundColor(Color.parseColor("FF0000"))); // selected red colored

            else
                 tabhost.getTabWidget().getChildAt(tabhost.getCurrentTab()).setBackgroundColor(Color.parseColor("FFFFFF"))); // selected but show as unselected with white color


    }

而在你的活动类（这是由选定的选项卡打开）：

And in your activity class(which is opened by that selected tab):

FirstActivity.class：

if(what.equals("disappear"))
      setContentView(R.layout.blank);
else
      setContentView(R.layout.first_layout);

blank.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="vertical"
  android:id="@+id/layout"
  android:background="#ffffff"  
  android:gravity="center">
  <!-- You can make background transperent by setting it to "00ffffff" -->
  <!-- You can also add this textview to guide user -->
  <!--
      <TextView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="Click Any Tab To Start
         />
  -->
</LinearLayout>

这篇关于“取消选择”一个在TabHost标签的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！