安卓:编程方式更改标签文本颜色文本、颜色、标签、方式

2023-09-12 03:39:33 作者:酣饮尽兴

我有这样的一个TabHost:

I've a TabHost like this:

<?xml version="1.0" encoding="utf-8"?>
 <TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@android:id/tabhost"
android:background="@drawable/tabs_bg">

<LinearLayout 
    android:id="@+id/LinearLayout01"
    android:orientation="vertical" 
    android:layout_height="fill_parent"
    android:layout_width="fill_parent">
    <TabWidget 
        android:id="@android:id/tabs"
        android:layout_height="wrap_content" 
        android:layout_width="fill_parent"
        android:layout_marginBottom="5dip">
    </TabWidget>
    <FrameLayout 
        android:id="@android:id/tabcontent"
        android:layout_height="fill_parent" 
        android:layout_width="fill_parent">
    </FrameLayout>
</LinearLayout>

和我添加标签来此TabHost编程方式是这样的:

And I am adding tabs to this TabHost programmatically like this:

tabHost = (TabHost)findViewById(android.R.id.tabhost);
    tabHost.setOnTabChangedListener(this);

    /* tid1 is firstTabSpec Id. Its used to access outside. */
    TabSpec firstTabSpec = tabHost.newTabSpec("tid1");
    TabSpec secondTabSpec = tabHost.newTabSpec("tid2");
    TabSpec ThirdTabSpec = tabHost.newTabSpec("tid3");

    /* TabSpec setIndicator() is used to set name for the tab. */
    /* TabSpec setContent() is used to set content for a particular tab. */
    firstTabSpec.setIndicator("Tab1", getResources().getDrawable(R.drawable.tab1));
    secondTabSpec.setIndicator("Tab2", getResources().getDrawable(R.drawable.tab2));
    ThirdTabSpec.setIndicator("Tab3", getResources().getDrawable(R.drawable.tab3));

    firstTabSpec.setContent(new Intent(this,FirstTab.class));
    secondTabSpec.setContent(new Intent(this,SecondTab.class));
    ThirdTabSpec.setContent(new Intent(this,ThirdTab.class));

    /* Add tabSpec to the TabHost to display. */
    tabHost.addTab(firstTabSpec);
    tabHost.addTab(secondTabSpec);
    tabHost.addTab(ThirdTabSpec);

    for(int i=0;i<tabHost.getTabWidget().getChildCount();i++)
    {
        tabHost.getTabWidget().getChildAt(i).setBackgroundColor(Color.parseColor("#121312"));
    }

    tabHost.getTabWidget().setCurrentTab(0);
    tabHost.getTabWidget().getChildAt(0).setBackgroundColor(Color.parseColor("#f1a026"));

这里是onTabChanged事件:

And here is onTabChanged Event:

public void onTabChanged(String tabId) {
    // TODO Auto-generated method stub
    for(int i=0;i<tabHost.getTabWidget().getChildCount();i++)
    {
        tabHost.getTabWidget().getChildAt(i).setBackgroundColor(Color.parseColor("#121312"));
    } 

    tabHost.getTabWidget().getChildAt(tabHost.getCurrentTab()).setBackgroundColor(Color.parseColor("#f1a026"));
}

在onTabChanged情况下,我也想改变这一切标签的文本颜色。请帮助我,我怎么能更改标签的文本颜色事件?

In onTabChanged event, I also want to change the text color of all tabs. Please help me how can I change text color of tabs in the event?

谢谢

推荐答案

要更改标签的文本颜色,你需要得到它设置为标签标题​​的观点,即TextView的,你可以这样改变它:

To change the text color of tabs, you need to get the view i.e TextView which is set as title of tabs and you can change it like this:

    TabHost tabhost = getTabHost();
    for(int i=0;i<tabhost.getTabWidget().getChildCount();i++) 
    {
        TextView tv = (TextView) tabhost.getTabWidget().getChildAt(i).findViewById(android.R.id.title);
        tv.setTextColor(.....);
    } 

希望这有助于....

hope this helps....