使用 TabLayout 时如何更改选项卡背景颜色? [英] How do I change a tab background color when using TabLayout?
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问题描述
这是我在主要活动中的代码
This is my code in the main activity
public class FilterActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_filter);
// Get the ViewPager and set it's PagerAdapter so that it can display items
ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
PageAdapter pageAdapter = new PageAdapter(getSupportFragmentManager(), FilterActivity.this);
viewPager.setAdapter(pageAdapter);
// Give the TabLayout the ViewPager
final TabLayout tabLayout = (TabLayout) findViewById(R.id.sliding_tabs);
tabLayout.setupWithViewPager(viewPager);
}
}
这是我在 XML 中的代码
And this is my code in the XML
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:id="@+id/app_bar"
layout="@layout/app_bar">
</include>
<android.support.design.widget.TabLayout
android:id="@+id/sliding_tabs"
android:layout_width="fill_parent"
style="@style/MyCustomTabLayout"
android:layout_height="48dp"/>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="0px"
android:layout_weight="1"
android:background="@android:color/white" />
</LinearLayout>
我想改变一个标签被选中时的背景颜色
I want to change the background color of one tab when it's selected
推荐答案
最终对我有用的方法与@如果我是DJ 建议的类似,但是tabBackground
应该在 中layout
文件和 not 在 style
内,所以它看起来像:
What finally worked for me is similar to what @如果我是DJ suggested, but the tabBackground
should be in the layout
file and not inside the style
, so it looks like:
res/layout/somefile.xml
:
<android.support.design.widget.TabLayout
....
app:tabBackground="@drawable/tab_color_selector"
...
/>
和选择器res/drawable/tab_color_selector.xml
:
and the selector
res/drawable/tab_color_selector.xml
:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@color/tab_background_selected" android:state_selected="true"/>
<item android:drawable="@color/tab_background_unselected"/>
</selector>
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