三个竖直LinearLayout 布局的问题，在线等

Question

第一个<LinearLayout 中含有一行文字第二个LinearLayout含有一listview第三个LinearLayout含有一行文字，现要，第一个高设置为42dip,第三个高为36dip，并位于底部，第二个listview充中间的屏，这如何设置呀，thanks

Answer 1

<?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/relativeLayout1"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" >        <LinearLayout
            android:id="@+id/linearLayout1"
            android:layout_width="fill_parent"
            android:layout_height="42dip"
            android:layout_alignParentTop="true"
            android:orientation="vertical" >            <TextView
                android:id="@+id/textView1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="25sp"
                android:text="First" />        </LinearLayout>        <LinearLayout
            android:id="@+id/linearLayout2"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_below="@+id/linearLayout1"
            android:layout_above="@+id/linearLayout3"
            android:orientation="vertical" >            <ListView
                android:id="@+id/listView1"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" >
            </ListView>        </LinearLayout>        <LinearLayout
            android:id="@+id/linearLayout3"
            android:layout_width="fill_parent"
            android:layout_height="36dip"
            android:orientation="vertical"
            android:layout_alignParentBottom="true"
             >            <TextView
                android:id="@+id/textView2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Third"
                android:textSize="25sp" />        </LinearLayout>    </RelativeLayout>
已测