Linear Layout Android中的布局重量？

Question

I am using two ListView in my Layout. and having fixed header and footer.But when i am running my code my header is getting breaked not coming full on my Device and my footer is not showing because of the ListView .

This is my main XML file that is having the ListView

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="vertical"
              android:layout_width="match_parent"
              android:layout_height="match_parent">

    <LinearLayout
        android:id="@+id/llHeader"
        android:orientation="vertical"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_weight="1">
        <LinearLayout
            android:id="@+id/mainLinearLayout"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:background="@drawable/top_bg"
            android:orientation="horizontal" >
        <ImageView 
            android:id="@+id/back_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/back_btn"
            android:layout_marginTop="5dp"
            android:layout_marginLeft="10dp"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:layout_marginLeft="75dp"
            android:text="Flights"
            android:textColor="@android:color/white" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/flightDetailsLayout"
        android:layout_width="fill_parent"
        android:layout_height="70dp"
        android:layout_below="@+id/mainLinearLayout"
        android:layout_centerHorizontal="true"
        android:background="@drawable/gray_bg123"
        android:orientation="vertical" >
        <LinearLayout
            android:id="@+id/innerflightDetailsLayout"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >

            <TextView
                android:id="@+id/from"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="12dp"
                android:paddingLeft="12dp"
                android:textSize="12sp"
                android:text="Boston to San Fransisco, "
                android:textStyle="bold" />

            <TextView
                android:id="@+id/tripType"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="12dp"
                android:text="RoundTrip"
                android:textSize="12sp" />

        </LinearLayout>
        <LinearLayout
            android:id="@+id/innerTripLayout"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >

            <TextView
                android:id="@+id/tripDate"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:paddingLeft="12dp"
                android:textSize="10sp"
                android:text="19 Jan 2013 " 
                android:textStyle="bold"/>
            <TextView
                android:id="@+id/paxText"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="for 1 Adults,0 Childs,O Infants"
                android:textSize="12dp" />
        </LinearLayout>

        <LinearLayout
            android:id="@+id/Book"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_marginTop="5dp"
            android:orientation="horizontal" >

            <TextView
                android:id="@+id/tripDate"
                android:layout_width="84dp"
                android:layout_height="wrap_content"
                android:paddingLeft="12dp"
                android:text="Rs 10,2345 "
                android:textSize="10sp"
                android:layout_weight="1"
                android:textStyle="bold" />

            <ImageView
                android:id="@+id/bookBtn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:gravity="left"
                android:src="@drawable/book" />

        </LinearLayout>

    </LinearLayout>

    <LinearLayout
        android:id="@+id/sortFlightLayouts"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/flightDetailsLayout"
        android:background="@drawable/gray_bg123"
        android:orientation="horizontal" >

    <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:orientation="vertical" >

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="DEL-BLR"
                android:layout_marginLeft="6dp"
                android:layout_marginTop="5dp"
                android:textStyle="bold" />

            <LinearLayout
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"

                android:orientation="horizontal" >

                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="5dp"
                    android:src="@drawable/flight_icon_result" />

                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="5dp"
                    android:layout_marginLeft="25dp"
                    android:src="@drawable/time" />

                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="5dp"
                    android:layout_marginLeft="5dp"
                    android:src="@drawable/rupee" />
            </LinearLayout>
        </LinearLayout>
        <View
            android:layout_width="1dp"
            android:layout_height="60dp"
            android:background="@android:color/darker_gray" />
        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:background="@drawable/gray_bg123"
            android:orientation="vertical" >

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="BLR-DEL"
                android:layout_marginLeft="6dp"
                android:layout_marginTop="5dp"
                android:textStyle="bold" />

            <LinearLayout
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal" >

                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="5dp"
                    android:src="@drawable/flight_icon_result" />

                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="5dp"
                    android:layout_marginLeft="25dp"
                    android:src="@drawable/time" />

                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="5dp"
                    android:layout_marginLeft="5dp"
                    android:src="@drawable/rupee" />
            </LinearLayout>
        </LinearLayout>
    </LinearLayout>
        </LinearLayout>

    <LinearLayout
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_weight="4"
        android:orientation="horizontal">

        <ListView
            android:id="@+id/lvDepartures"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:layout_width="wrap_content"/>
        <ListView
             android:id="@+id/lvArrivals"
             android:layout_weight="1"
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"/>

    </LinearLayout>

    <LinearLayout
        android:id="@+id/llFooter"
        android:orientation="vertical"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_weight="1"/>
        <LinearLayout
        android:id="@+id/footerLayout"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:orientation="horizontal"
        android:background="@drawable/top_bg" >

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center"
            android:layout_marginTop="5dp"
            android:src="@drawable/filter" />
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center"
            android:layout_marginTop="5dp"
            android:src="@drawable/sort" />
    </LinearLayout>
</LinearLayout> 

And this my Layout that i am putting in the ListView at RunTime

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" >

    <ImageView
        android:id="@+id/flightLogo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginBottom="5sp"
        android:layout_marginRight="10sp"
        android:layout_marginTop="5sp"
        android:src="@drawable/spicejet" />

    <TextView
        android:id="@+id/flightCompanyName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/flightLogo"
        android:text="Spice Jet" />

    <TextView
        android:id="@+id/flightNumber"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/flightCompanyName"
        android:text="9W-123" />

    <TextView
        android:id="@+id/flightTime"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@+id/flightLogo"
        android:gravity="center_vertical"
        android:text="6:00 - 7:00" />

    <TextView
        android:id="@+id/flightStop"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/flightTime"
        android:layout_toRightOf="@+id/flightLogo"
        android:text="1h 35m | Non Stop" />

    <TextView
        android:id="@+id/amount"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/flightStop"
        android:layout_toRightOf="@+id/flightLogo"
        android:text="Rs 20,000" />

</RelativeLayout>

Answer 1

I can't tell if this is your only problem yet but when you use layout_weight inside of a vertical LinearLayout then your layout_height should be 0dp .

Likewise if it is inside of a horizontal LinearLayout then the layout_width should be 0dp . Also, all of the layouts should have a weight if you are using it on one of thenm.

android:layout_below= in your third LinearLayout , I believe, is not a property of LinearLayout . That is a property of RelativeLayout .

My suggestion for this type of setup is to use RelativeLayout as the root layout . Then, for your header LinearLayout you can use android:layout_alignParentTop="true" and for your footer use android:layout_alignParentBottom="true" then stick your ListView in the middle with android:layout_below="@id/idOfHeaderLL"

<RelativeLayout
  ...>
    <LinearLayout
      android:id="@+id/headerLL"
      android:layout_alignParentTop="true"
      ...>
     <!-- add header veiws -->
    </LinearLayout
    <ListView
       android:layout_below="@id/headerLL"
       .../>
    <LinearLayout
       android:layout_alignParentBottom="true"
       ...>
    <!-- add footer views -->
    </LinearLayout>
</RelativeLayout>

I'm not going to rewrite the whole layout but that should give you an idea. The "..." is where you will put in your other properties such as height, width, etc...