我目前有一个使用选项卡式导航实现的actionBar,现在想要自定义选项卡.我为每个选项卡创建了一个自定义
XML布局,以获得textview和可单击的ImageButton,并使用ActionBar.Tab.setCustomView进行设置.问题是布局的所有属性都没有任何效果(例如对齐).任何帮助,将不胜感激！
这是一张显示产生的图像：Image of what is being produced
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >
<TextView
android:id="@+id/tab_title"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
/>
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:src="@drawable/ic_action_refresh"/>
</RelativeLayout>
ActionBar代码：
final ActionBar actionBar = getActionBar();
//Because there is no 'parent' when navigating from the action bar,the home button for the Action Bar is disabled.
actionBar.setHomeButtonEnabled(false);
//Specify that the actionBar will include a tabbed navigation
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Setting up the ViewPager rowingViewPager,attaching the RowingFragmentPagerAdapter and setting up a listener for when the
// user swipes between sections.
rowViewPager = (ViewPager) findViewById(R.id.pager);
rowViewPager.setAdapter(rowAdapter);
rowViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener()
{
@Override
public void onPageSelected(int position)
{
actionBar.setSelectedNavigationItem(position);
}
});
// For loop to add tabs for each fragment to the actionBar
for (int tab_counter = 0; tab_counter < rowAdapter.getCount(); tab_counter++)
{
Tab new_tab = actionBar.newTab();
new_tab.setCustomView(R.layout.custom_tab);
TextView tab_title = (TextView) new_tab.getCustomView().findViewById(R.id.tab_title);
tab_title.setText(rowAdapter.getTabTitle(tab_counter));
new_tab.setTabListener(this);
// Add tab with specified text as well as setting this activity as the TabListener.
actionBar.addTab(new_tab);
}
rowViewPager.setOffscreenPageLimit(2); //Sets the number of off-screen fragments to store and prevent re-load. Will increase if future fragments are added.
}
解决方法
问题在于不是自定义actionBar布局本身,而是改变样式.默认的ActionBar有一个属性,左边和右边的填充是16dp.您可以在标签布局中执行任何操作,但不会覆盖此选项.
为此,我在ActionBar选项卡的styles.xml中编写了一个新样式,我在其中覆盖了该填充并将其应用于应用程序主题中的actionBarTabStyle属性.这是我的新styles.xml,它显示了这一变化.
<resources>
<!--
Base application theme,dependent on API level. This theme is replaced
by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
-->
<style name="AppBaseTheme" parent="android:Theme.Light">
<!--
Theme customizations available in newer API levels can go in
res/values-vXX/styles.xml,while customizations related to
backward-compatibility can go here.
-->
</style>
<!-- Application theme. -->
<style name="AppTheme" parent="AppBaseTheme">
<!-- All customizations that are NOT specific to a particular API-level can go here. -->
<item name="android:actionBarTabStyle">@style/ActionBarTabStyle</item>
</style>
<style name="ActionBarTabStyle" parent="@android:style/Widget.Holo.ActionBar.TabView">
<item name="android:paddingLeft">0dp</item>
<item name="android:paddingRight">0dp</item>
</style>
</resources>
