Question

标签布局无法正常工作，标签内容不会显示。下面是相关的xml文件。选项卡正在滑动，但选项卡的内容不可见。以下文件是app_bar_main.xml。

  <?xml version="1.0" encoding="utf-8"?>
  <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.example.shubham.tabexample.Activity.MainActivity">

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <!--android:theme="@style/AppTheme.AppBarOverlay"-->

    <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/AppTheme.PopupOverlay" />-->


    <!-- our tablayout to display tabs  -->


    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/main_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        tools:context=".MainActivity">

        <!--  our toolbar
        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="?attr/colorPrimary"
            android:minHeight="?attr/actionBarSize"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>-->


        <!-- View pager to swipe views -->


        <android.support.design.widget.TabLayout
            android:id="@+id/tabLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="?attr/colorPrimary"
            android:minHeight="?attr/actionBarSize"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" />

        <android.support.v4.view.ViewPager
            android:id="@+id/pager"
            android:layout_width="match_parent"
            android:layout_height="fill_parent" />


    </LinearLayout>


</android.support.design.widget.AppBarLayout>




 </android.support.design.widget.CoordinatorLayout>

Answer 1

带有TabLayout的LinearLayout定义在AppBarLayout之外

标签布局菜单在android中不起作用

1 个答案: