为什么CoordinatorLayout会在底部显示空白区域?

时间:2018-06-06 13:26:46

标签: android android-layout android-fragments coordinator-layout

我的主要活动XML如下所示

<?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"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">

<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:background="#FFFFFF"
    android:fitsSystemWindows="true"
    tools:context=".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="@dimen/abc_action_bar_default_height_material"
            android:background="@color/fcolor"
            app:popupTheme="@style/AppTheme.PopupOverlay">

            <TextView
                android:id="@+id/toolbar_title"
                style="@style/TextAppearance.AppCompat.Widget.ActionBar.Title"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:text="text"
                android:textColor="@color/scolor" />
        </android.support.v7.widget.Toolbar>

        <android.support.design.widget.TabLayout
            android:id="@+id/tab_layout"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:layout_below="@+id/toolbar"
            android:background="?attr/colorPrimary"
            android:elevation="2dp"
            android:minHeight="?attr/actionBarSize"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
            app:tabGravity="fill"
            app:tabMode="fixed" />
    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_main" />
</android.support.design.widget.CoordinatorLayout>


<android.support.design.widget.NavigationView
    android:id="@+id/nvView"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:background="@android:color/white"
    app:headerLayout="@layout/navigation_header"
    app:menu="@menu/drawer_view" />

如您所见,我使用Include Tag

在CoordinatorLayout中添加我的主要内容
  <include layout="@layout/content_main" />

在内容主XML中,我有

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/actvity_main" tools:context=".Main">
<android.support.v4.view.ViewPager
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="fill_parent"
    android:layout_below="@id/tab_layout"/>

 </RelativeLayout>

然后我使用不同的XML布局将RelativeLayout中的Mapview显示在页面查看器中

我的问题是屏幕底部始终有空的空间从CoordinatorLayout离开,如下图所示

enter image description here

正如您可以看到底部的空白区域,我之所以知道它来自CoordinatorLayout,因为当我更改CoordinatorLayout背景时它改变了空间颜色

似乎我的包含标签在所有屏幕的高度都没有缩放,即使我设置了

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

仍然相同,我需要的是使我的Mapview缩放并填充屏幕底部

4 个答案:

答案 0 :(得分:2)

main.xml中,删除android:paddingBottom="3dp"

答案 1 :(得分:1)

试试这个。

尝试使用java代码

mapView.setBuiltInZoomControls(true); 
int level = mapView.getZoomLevel();
MapController mc = mapView.getController();
mc.setZoom(level + 3);

和你的xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="fill_parent"
android:layout_height="fill_parent">

            <android.support.v4.view.ViewPager
                android:id="@+id/pager"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:layout_alignParentBottom="true"
                android:layout_alignParentLeft="true"
                android:layout_alignParentRight="true"
                android:layout_alignParentTop="true" />

        </RelativeLayout>

让我知道它是否适合你。

答案 2 :(得分:0)

看起来问题是我在java代码中添加了填充值 感谢大家帮我查看代码中的填充

答案 3 :(得分:0)

在内容主要尝试从RelativeLayout中删除:

android:layout_below="@id/tab_layout"

从ViewPager移动: <include layout="@layout/content_main" /> 到了 android:layout_height="fill_parent"

并在ViewPager中更改:

android:layout_height="match_parent"DECLARE @stores TABLE(StoreID INT, [Month] VARCHAR(6), Sales INT); INSERT INTO @stores(StoreID, Month, Sales) VALUES(119119, '201802', 50000), (119119, '201803', 62500), (119119, '201804', 93750), (119119, '201708', 45000), (119271, '201803', 25000), (119271, '201804', 75000), (119271, '201802', 50000); WITH Sales AS (SELECT StoreID, CAST([Month]+'01' AS DATE) AS [Month], Sales FROM @stores) SELECT s1.StoreID, s1.[Month], SUM(s2.Sales) AS total FROM Sales s1 inner JOIN Sales s2 ON s1.StoreID=s2.StoreID AND s1.[Month]>=s2.[Month] AND DATEDIFF(MONTH, s2.[Month], s1.[Month])<5 GROUP BY s1.StoreID, s1.[Month] ORDER BY s1.StoreID, s1.[Month];