我有一个这样的 TabHost:
<?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>
我正在以编程方式向此 TabHost 添加选项卡,如下所示:
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:
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 事件中,我还想更改所有选项卡的文本颜色。请帮助我如何更改事件中标签的文本颜色?
谢谢,
最佳答案
要更改选项卡的文本颜色,您需要获取 View ,即设置为选项卡标题的 TextView,您可以这样更改:
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(.....);
}
希望这会有所帮助....
关于Android:以编程方式更改选项卡文本颜色,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/5577688/