如何在android中更改tabhost的字体大小

Question

如何更改选项卡的字体大小？我为选项卡扩展了TabActivity.

Answer 1

您可以定义主题,使用样式来实现此目的:

:首先,你创建的主题(名称CustomTheme为您)Activity在您的res/values/styles.xml:

<style name="CustomTheme" parent="@android:style/Theme">
    <item name="android:tabWidgetStyle">@style/CustomTabWidget</item>
</style>
<style name="CustomTabWidget" parent="@android:style/Widget.TabWidget">
    <item name="android:textAppearance">@style/CustomTabWidgetText</item>
</style>
<style name="CustomTabWidgetText" 
    parent="@android:style/TextAppearance.Widget.TabWidget">
    <item name="android:textSize">20sp</item>
    <item name="android:textStyle">bold</item>
</style>

然后在您的androidManifest.xml指定上面的主题为您TabActivity或Activity包含您的TabWidget:

<activity android:name="MyTabActivity" android:theme="@style/CustomTheme">

这将为您提供所需的输出(当然您应该根据自己的喜好更改大小和样式).

Answer 2

它不漂亮,但尝试这个脏修复:

TabWidget tw = (TabWidget)tabHost.findViewById(android.R.id.tabs);
View tabView = tw.getChildTabViewAt(0);
TextView tv = (TextView)tabView.findViewById(android.R.id.title);
tv.setTextSize(20);

要么

 //Do this to hack font size of title text
 LinearLayout ll = (LinearLayout) tabHost.getChildAt(0);
 TabWidget tw = (TabWidget) ll.getChildAt(0);

 // for changing the text size of first tab
 RelativeLayout rllf = (RelativeLayout) tw.getChildAt(0);
 TextView lf = (TextView) rllf.getChildAt(1);
 lf.setTextSize(21);
 lf.setPadding(0, 0, 0, 6);

Answer 3

略有概括:

final TabWidget tw = (TabWidget)mTabHost.findViewById(android.R.id.tabs);
    for (int i = 0; i < tw.getChildCount(); ++i)
    {
        final View tabView = tw.getChildTabViewAt(i);
        final TextView tv = (TextView)tabView.findViewById(android.R.id.title);
        tv.setTextSize(20);
    }