Java TabLayout 中的选项卡没有填满整个 ActionBar
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Tabs in TabLayout not filling up entire ActionBar
提问by clever_trevor
I am using a TabLayout
and ViewPager
to display ActionBar tabs
following the guide Google Play Style Tabs using TabLayout, however my tabs are squished to the left side of the ActionBar, shown below:
我正在使用TabLayout
和使用 TabLayout按照Google Play 样式选项卡指南ViewPager
进行显示,但是我的选项卡被压缩到 ActionBar 的左侧,如下所示:ActionBar tabs
And I would like them to take up the whole bar with equal widths. I've made only a few minor changes to the guide:
我希望他们以相等的宽度占据整个酒吧。我只对指南做了一些小改动:
In activity_main.xml a style was created to show the ActionBar:
在 activity_main.xml 中创建了一个样式来显示 ActionBar:
<android.support.design.widget.TabLayout
android:id="@+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
style="@style/AppTheme"
app:tabMode="scrollable" />
Here is the styles.xml code:
这是styles.xml 代码:
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="windowActionBar">true</item>
<item name="tabIndicatorColor">#ffff0030</item>
</style>
Also, my MainActivity
now extends AppCompatActivity
instead of a FragmentActivity
.
另外,我MainActivity
现在扩展AppCompatActivity
而不是FragmentActivity
.
采纳答案by Ellie Zou
You can refer to the TabLayout.
你可以参考TabLayout。
GRAVITY_CENTER
Gravity used to lay out the tabs in the center of the TabLayout.
GRAVITY_CENTER
重力用于在 TabLayout 的中心布置选项卡。
GRAVITY_FILL
Gravity used to fill the TabLayout as much as possible.
GRAVITY_FILL
重力用于尽可能多地填充 TabLayout。
MODE_FIXED
Fixed tabs display all tabs concurrently and are best used with content that benefits from quick pivots between tabs.
MODE_FIXED
固定选项卡同时显示所有选项卡,最好与受益于选项卡之间快速旋转的内容一起使用。
MODE_SCROLLABLE
Scrollable tabs display a subset of tabs at any given moment, and can contain longer tab labels and a larger number of tabs.
MODE_SCROLLABLE
可滚动选项卡在任何给定时刻显示选项卡的子集,并且可以包含更长的选项卡标签和更多的选项卡。
Set this in your code or your layout xml.
在您的代码或布局 xml 中进行设置。
app:tabGravity="center"
app:tabMode="fixed"
or
或者
tabLayout.setTabGravity(TabLayout.GRAVITY_CENTER);
tabLayout.setTabMode(TabLayout.MODE_FIXED);
Generally, using the code like blow can work without setting tabGravity
and tabMode
.
一般来说,使用像blow这样的代码可以不用设置tabGravity
和tabMode
。
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:layout_scrollFlags="scroll|enterAlways" />
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.design.widget.AppBarLayout>
回答by rpcao
Try adding this to MainActivity:
尝试将其添加到 MainActivity:
tabLayout.setTabMode(TabLayout.MODE_FIXED);
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
回答by Fenil
Add - app:tabGravity="fill" property in the xml.
在 xml 中添加 - app:tabGravity="fill" 属性。
For Example -
例如 -
<android.support.design.widget.TabLayout
android:id="@+id/tablayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabGravity="fill" />
回答by Mobi10
try this it works
试试这个它有效
app:tabGravity="fill"
app:tabMode="fixed"
回答by Parth Anjaria
回答by HaSeeB MiR
Set TabLayout width to match Parent
设置 TabLayout 宽度以匹配父级
Like this.
像这样。
<TabLayout
android:layout_width="match_parent"
android:layout_height="60dp"/>