ViewPager與AppBarLayout重疊

Question

我試圖設置Activity的佈局，其中包含N Fragments。在佈局我用一個ViewPager和AppBarLayout，我所面臨的問題是，ViewPager重疊AppBarLayout，你從截圖中可以看到：

這是我activity_main.xml

<?xml version="1.0" encoding="utf-8"?> 
<android.support.v4.widget.DrawerLayout 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/drawer_layout" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:fitsSystemWindows="true" 
tools:openDrawer="start"> 

<include 
    layout="@layout/app_bar_main" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" /> 

<android.support.design.widget.NavigationView 
    android:id="@+id/nav_view" 
    android:layout_width="wrap_content" 
    android:layout_height="match_parent" 
    android:layout_gravity="start" 
    android:fitsSystemWindows="true" 
    app:headerLayout="@layout/nav_header_main" 
    app:menu="@menu/activity_main_drawer" /> 


<android.support.v4.view.ViewPager 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    app:layout_behavior="@string/appbar_scrolling_view_behavior" 
    android:id="@+id/containter"> 

</android.support.v4.view.ViewPager> 

這是我app_bar_main.xml其中包含AppBarLayout

<?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" 
    tools:context="com.app.app.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" /> 

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


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

如何防止這些元素重疊？

Answer 1

@Signo，

您的問題可以通過一些佈局調整來解決。

試試這個：

<?xml version="1.0" encoding="utf-8"?> 
<android.support.v4.widget.DrawerLayout 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/drawer_layout" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:fitsSystemWindows="true" 
tools:openDrawer="start"> 

    <android.support.design.widget.NavigationView 
     android:id="@+id/nav_view" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_gravity="start" 
     android:fitsSystemWindows="true" 
     app:headerLayout="@layout/nav_header_main" 
     app:menu="@menu/activity_main_drawer" /> 

    <LinearLayout 
     android:orientation="vertical" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"> 

     <include 
      layout="@layout/app_bar_main" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" /> 

     <android.support.v4.view.ViewPager 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      app:layout_behavior="@string/appbar_scrolling_view_behavior" 
      android:id="@+id/containter" /> 
     </android.support.v4.view.DrawerLayout> 

    </LinearLayout> 

Answer 2

首先的嘗試添加上述你的觀點有點像一個ViewGroup：

<RelativeLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"> 
//... your views here 
</RelativeLayout> 

，你應該你appBar的改變高度wrap_content並添加一些ID

<include 
      android:id="@+id/app_bar_id" 
      layout="@layout/app_bar_main" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content"/> 

然後在您的視圖尋呼機上定義了像這樣的layout_below屬性：

<android.support.v4.view.ViewPager 
      android:id="@+id/containter" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_below="@+id/app_bar_id" 
      app:layout_behavior="@string/appbar_scrolling_view_behavior"/>