android中的底栏布局

时间:2011-12-30 11:41:00

标签: android layout android-layout android-xml

这是我的android xml地图源代码 - 底栏布局。我在屏幕上显示一个巨大的地图,我需要在屏幕底部有一个30dp的高布局,以显示一些像图像一样的标签。如何将水平线性布局推到页面底部?

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height=" what here ? "
    android:layout_width="fill_parent"
    android:orientation="vertical">
    <com.google.android.maps.MapView
        android:id="@+id/map_view"
        Map goes here. Almost full screen. Exactly full - 30dp;

        />
    <LinearLayout>
         I want 3 images here. Bottom of the screen.
    </LinearLayout>
</RelativeLayout>

4 个答案:

答案 0 :(得分:9)

使用android:layout_alignParentBottom="true"在linearlayout的父级底部设置linearlayout,为mapview设置android:layout_above,将mapview设置在linearlayout之上。

您的代码将是:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height="fill_parent"
    android:layout_width="fill_parent"
    android:orientation="vertical">

    <LinearLayout android:layout_height="30dip"
        android:layout_width="fill_parent"
        android:layout_alignParentBottom="true"
        android:id="@+id/linearLayout1"
    >
         <!-- ... -->
    </LinearLayout>

    <com.google.android.maps.MapView
        android:id="@+id/map_view"
        android:layout_height="wrap_content"
        android:layout_width="fill_parent"
        android:layout_above="@+id/linearLayout1"
    />
</RelativeLayout>

答案 1 :(得分:1)

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <com.google.android.maps.MapView
        android:id="@+id/map_view"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_above="@+id/rel_bottom" />

    <RelativeLayout
        android:id="@+id/rel_bottom"
        android:layout_width="fill_parent"
        android:layout_alignParentBottom="true"
        android:layout_height="30dp" >

        <ImageView
            android:id="@+id/img1"
            android:layout_width="40dp"
            android:layout_height="fill_parent" />

        <ImageView
            android:id="@+id/img2"
            android:layout_width="40dp"
            android:layout_height="fill_parent"
            android:layout_toRightOf="@+id/img1" />

        <ImageView
            android:id="@+id/img3"
            android:layout_width="40dp"
            android:layout_height="fill_parent"
            android:layout_toRightOf="@+id/img2" />
    </RelativeLayout>

</RelativeLayout>

答案 2 :(得分:0)

使用RelativeLayout的属性,例如android:layout_alignParentBottomandroid:layout_above

我会做这样的事情:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent">

     <LinearLayout
       android:id="@+id/footer"
       android:layout_alignParentBottom="true"
       android:layout_alignParentLeft="true"
       android:width="fill_parent"
       android:height="30dp">

            add your images here

     </LinearLayout>

    <com.google.android.maps.MapView
         android:id="@+id/map_view"
         android:height="fill_parent"
         android:width="fill_parent"
         android:layout_alignParentTop="true"
         android:layout_above="@id/footer"/>

</RelativeLayout>

答案 3 :(得分:-2)

尝试以下布局。使用android:layout_alignParentBottom="true"是不够的,因为带有android:layout_height="fill_parent"的MapView将填满整个屏幕并隐藏LinearLayout。您还必须添加android:layout_above="@id/menu",以便它不会隐藏它。

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <com.google.android.maps.MapView
        android:id="@+id/map"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_above="@id/menu"
        android:apiKey="@string/google_maps_api_key"
        android:clickable="true" />

    <LinearLayout
        android:id="@+id/menu"
        android:layout_width="fill_parent"
        android:layout_height="30dp"
        android:layout_alignParentBottom="true" >
    </LinearLayout>

</RelativeLayout>