I want create a layout, with a horizontal LinearLayout(s) on top and bottom, a ListView fill in middle.
How can I define the main.xml.
I tried to create a layout with horizontal LinearLayout on top, TextView on bottom, a ListView fill in middle; is ok. But after I modified the bottom TextView to LinearLayout, the bottom LinearLayout disappear.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:textSize="12px"
android:text="something here"
android:layout_width="50px"
android:layout_height="wrap_content"
/>
<TextView
android:textSize="12px"
android:text="something here"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="bottom"
>
<ListView
android:id="#+id/listbody"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<LinearLayout
android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
>
<TextView
android:layout_height="wrap_content"
android:layout_width="0dip"
android:layout_weight="1"
android:textSize="12px"
android:text="50%"
/>
<TextView
android:layout_height="wrap_content"
android:layout_width="0dip"
android:layout_weight="1"
android:textSize="12px"
android:text="50%"
/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
Anybody can tell advise?
Please help.
Try containing the whole set in a RelativeLayout:
<?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" >
<LinearLayout
android:id="#+id/top_linear_layout_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true" >
</LinearLayout>
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/bottom_linear_layout_id"
android:layout_below="#id/top_linear_layout_id" />
<LinearLayout
android:id="#+id/bottom_linear_layout_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" >
</LinearLayout>
</RelativeLayout>
Edited with sizing stuff.
Here's what you're looking for. Estel's on the right track with the RelativeLayout (although it can be done with a LinearLayout, I think the RelativeLayout approach is cleaner, though) but the layout is out of order Nevermind, check Estel's comment which proved me wrong. :) You should first define your header, align it to the top; next, define your footer, and align it to the bottom; finally, declare your ListView, give it a height of fill_parent, and set it to layout above the footer and below the header:
<?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"
>
<LinearLayout
android:id="#+id/header"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:alignParentTop="true"
>
</LinearLayout>
<LinearLayout
android:id="#+id/footer"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:alignParentBottom="true"
>
</LinearLayout>
<ListView
android:id="#+id/listview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#id/footer"
android:layout_below="#id/header"
/>
</RelativeLayout>
The problem would be that you are defining both of them relative to the size of the content they contain, but if the combined content of both is bigger than the screen then one of them will have to overlap the other one, you would be better to define the layout_height using an absolute measurement in a linear layout
Thanks all for your advice and direction of RelativeLayout. I can fix it now.
I have to define the footer LinearLayout before the ListView, and define ListView as android:layout_alignParentTop="true" and android:layout_above="#id/footer"
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:textSize="12px"
android:text="something here"
android:layout_width="50px"
android:layout_height="wrap_content"
/>
<TextView
android:textSize="12px"
android:text="something here"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
<RelativeLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout
android:id="#+id/footer"
android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_alignParentBottom="true"
>
<TextView
android:layout_height="wrap_content"
android:layout_width="0dip"
android:layout_weight="1"
android:textSize="12px"
android:text="50%"
/>
<TextView
android:layout_height="wrap_content"
android:layout_width="0dip"
android:layout_weight="1"
android:textSize="12px"
android:text="50%"
/>
</LinearLayout>
<ListView
android:id="#+id/tablebody"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_above="#id/footer"
/>
</RelativeLayout>
</LinearLayout>
This will definitely solve your problem:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<HorizontalScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:textSize="12sp"
android:text="something here"
android:layout_width="50dp"
android:layout_height="wrap_content"/>
<TextView
android:textSize="12sp"
android:text="something here"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
</HorizontalScrollView>
<ListView
android:id="#+id/listbody"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
<HorizontalScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<LinearLayout
android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_width="fill_parent">
<TextView
android:layout_height="wrap_content"
android:layout_width="0dip"
android:layout_weight="1"
android:textSize="12sp"
android:text="50%"/>
<TextView
android:layout_height="wrap_content"
android:layout_width="0dip"
android:layout_weight="1"
android:textSize="12sp"
android:text="50%"/>
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>
Related
I have a problem with relativelayout where its children could use layout_below and layout_weight to set its percentage height.
For example, we have a relative layout and inside of it we have three linear layouts with textviews. Now, I would like to set for three of them (linearlayouts) 25,50,25 % of height of total height of relative layout. How could I accomplish it?
I found a solution for weight_sum and and relativelayout (CLICK), but it doesn't use layout_below.
How can I fix this?
I tried to add additional linearlayout inside of all linearlayouts, but then I am unable use layout_below.
Here is concept picture idea:
Here is my code:
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/linlay_leftcol_notification_header" >
<LinearLayout
android:id="#+id/linlay_leftcol_clock_theday"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/tv_theday"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="#string/theday"
android:textColor="#FFFFFF" />
</LinearLayout>
<LinearLayout
android:id="#+id/linlay_leftcol_clock_thetime"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/linlay_leftcol_clock_theday" >
<TextView
android:id="#+id/tv_thetime"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="#string/thetime"
android:textColor="#FFFFFF" />
</LinearLayout>
<LinearLayout
android:id="#+id/linlay_leftcol_clock_thenumber_themonth_theyear"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/linlay_leftcol_clock_thetime" >
<TextView
android:id="#+id/tv_thenumberofday_themonth_theyear"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="#string/thenumberofday_themonth_theyear"
android:textColor="#FFFFFF" />
</LinearLayout>
</RelativeLayout>
Try this...
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:background="#ff00ff"
android:orientation="vertical">
<RelativeLayout
android:layout_weight="1"
android:background="#ffff00"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/textView0"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="Hello 1"
android:textColor="#000000"
android:textSize="15dp" />
</RelativeLayout>
<RelativeLayout
android:layout_weight="2"
android:background="#00ffff"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/textView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="Hello 2"
android:textColor="#000000"
android:textSize="15dp" />
</RelativeLayout>
<RelativeLayout
android:layout_weight="1"
android:background="#ffff00"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/textView2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="Hello 3"
android:textColor="#000000"
android:textSize="15dp" />
</RelativeLayout>
</LinearLayout>
Check out this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight=".15"
android:background="#android:color/background_dark"
android:orientation="vertical" >
<RelativeLayout
android:id="#+id/rel_1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:background="#A52A2A" >
<TextView
android:id="#+id/tv_theday"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="1st layout"
android:textColor="#FFFFFF" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/rel_2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:background="#8B008B" >
<TextView
android:id="#+id/tv_theday"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="2ndlayout"
android:textColor="#FFFFFF" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/rel_3"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:background="#00008B" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="3rd layout"
android:textColor="#FFFFFF" />
</RelativeLayout>
</LinearLayout>
<RelativeLayout
android:id="#+id/rel_side"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight=".75"
android:background="#ff0000" >
<TextView
android:id="#+id/tv_theday"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="side layout"
android:textColor="#FFFFFF" />
</RelativeLayout>
</LinearLayout>
You may use either weight or relative layout properties. You can make that 25,50,25 like this...you align the parent left first textview, align parent right, other textview, and the remaining textview's you align to the left of the first one and to the right of the last one.
Use Table Layout and inside that, you put your textviews. There is an attribute, "stretch column", for table layout. There you can mention the size as " 0,2,1" like that...
In the following piece of code the Linear Layout at the extreme bottom is not visible.I tried several methods but couldn't make it visible.Please take a look
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/GlobalBG"
android:orientation="vertical" >
<include
android:id="#+id/id_nav_bar"
layout="#layout/app_nav_layout" />
<ListView
android:id="#+id/id_home_screen_list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:cacheColorHint="#android:color/transparent" />
<RelativeLayout
android:id="#+id/id_linear_layout_system_capacity"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="105dip"
android:background="#drawable/home_storage_bg"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="40dip"
android:gravity="center_horizontal"
android:text="Dummy"
android:textStyle="bold" />
<LinearLayout
android:id="#+id/id_linear_layout_seekbar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:background="#drawable/home_seekbar_bg" />
</RelativeLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/home_bottom_bg"/ >
</LinearLayout>
you have put
android:layout_width="wrap_content" android:layout_height="wrap_content"
as wrap_content and there is no content inside your layout so it is not visible maybe
Fixed the problem by editing the code as below:-
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="17dip"
android:gravity="center_horizontal"
android:text="Dummy"
android:textStyle="bold" />
As I understand this invisible layout should be always visible in the bottom of the screen, then you should better use RelativeLayout insted of LinearLayout
Change this layout
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/GlobalBG"
android:orientation="vertical" >
TO <RelativeLayout> and set this android:layout_alignParentBottom="true" to your invisible layout
Edited:
this works for me
<?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"
android:background="#color/red" >
<RelativeLayout
android:id="#+id/id_linear_layout_system_capacity"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="105dip"
android:background="#color/row_base_background_end"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="20dip"
android:gravity="center_horizontal"
android:text="Dummy"
android:textStyle="bold" />
<LinearLayout
android:id="#+id/id_linear_layout_seekbar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:background="#color/row_base_background_start" />
</RelativeLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#color/gray" >
</LinearLayout>
</RelativeLayout>
I have a layout like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/parent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#e4e8ed"
android:gravity="top" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/app"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="0px"
android:orientation="vertical"
android:padding="0px" >
<include
android:id="#+id/tabBar"
layout="#layout/tab" />
<Button
android:id="#+id/nist"
android:layout_width="match_parent"
android:layout_height="67dp"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="3dp"
android:layout_marginLeft="3dp"
android:layout_marginRight="3dp"
android:layout_marginTop="3dp"
android:background="#drawable/ready"
android:textColor="#FFFFFF" />
<ListView
android:id="#+id/lastCases"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="2.08"
android:longClickable="true" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="7dp"
android:layout_below="#id/app"
android:background="#drawable/dropshadow_custom" >
<TextView
android:id="#+id/error"
style="#style/AudioFileInfoOverlayText"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="120dp"
android:gravity="center"
android:text="No Cases"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#D6D8D9"
android:textSize="40dp" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignTop="#+id/app"
android:background="#000000"
android:gravity="bottom"
android:orientation="vertical" >
</LinearLayout>
</RelativeLayout>
I try to align the last LinearLayout on top of the layout which holds the ListView by using this tag: android:layout_alignTop="#+id/app" But it doesn't seem to work. How can accomplish this?
Many Thanks!
Without any content a Layout with layout_width="wrap_content" and layout_height="wrap_content" is not shown as its width and height have a value of 0! Even if you have set some background color nothing will appear! You either have to add some content to the layout or you have to define another layout dimension. The position of your layout with android:layout_alignTop="#+id/app" should be correct. Hope that helps.
You can set "layout_below" on the first layout targeting to the last layout.
The code is that, I put a button inside the top layout as an exemple (Obs: In your listview you should use 0dp in layout_weight cause you already use layout_weight ^^) :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/parent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#e4e8ed"
android:gravity="top" >
<LinearLayout
android:id="#+id/app"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="0px"
android:orientation="vertical"
android:layout_below="#+id/top"
android:padding="0px" >
<Button
android:id="#+id/nist"
android:layout_width="match_parent"
android:layout_height="67dp"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="3dp"
android:layout_marginLeft="3dp"
android:layout_marginRight="3dp"
android:layout_marginTop="3dp"
android:textColor="#FFFFFF" />
<ListView
android:id="#+id/lastCases"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2.08"
android:longClickable="true" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="7dp"
android:layout_below="#+id/app" >
<TextView
android:id="#+id/error"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="120dp"
android:gravity="center"
android:text="No Cases"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#D6D8D9"
android:textSize="40dp" />
</LinearLayout>
<LinearLayout
android:id="#+id/top"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:background="#000000"
android:gravity="bottom"
android:orientation="vertical" >
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Top"
/>
So I want a linearLayout at the top of the screen that has 2 buttons, a linearLayout at the bottom that also has two buttons and a listView in the middle. The problem I'm running into is that the bottom linearLayout gets covered up if the listView gets too big. I'm telling the listView to wrap_content as it's layout_height because I want to do that...but I almost positive thats the reason the bottom linearLayout isn't showing.
Here's the code:
<?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" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/topLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:id="#+id/importClasses"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
>
</Button>
<TextView
android:id="#+id/title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="#string/Title"
android:layout_weight="1"
android:gravity="center_horizontal|center_vertical|center"
>
</TextView>
<Button
android:id="#+id/addClasses"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
<ListView
android:id="#+id/classList"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/topLayout" >
</ListView>
<LinearLayout
android:id="#+id/bottomLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/classList"
>
<Button
android:id="#+id/Assignments"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
>
</Button>
<Button
android:id="#+id/flashCards"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
</RelativeLayout>
Any suggestions?
Set classList to be above bottomLayout and below topLayout.
Also set bottomLayout to layout_alignParentBottom="true", and topLayout layout_alignParentTop="true"
<?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" >
<LinearLayout
android:id="#+id/topLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" android:layout_alignParentTop="true">
<Button
android:id="#+id/importClasses"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
>
</Button>
<TextView
android:id="#+id/title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="#string/Title"
android:layout_weight="1"
android:gravity="center_horizontal|center_vertical|center"
>
</TextView>
<Button
android:id="#+id/addClasses"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
<ListView
android:id="#+id/classList"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/bottomLayout"
android:layout_below="#+id/topLayout" >
</ListView>
<LinearLayout
android:id="#+id/bottomLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
<Button
android:id="#+id/Assignments"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
>
</Button>
<Button
android:id="#+id/flashCards"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
This should work, but you may need to change your RelativeLayout to LinearLayout.
And change the layout_height of your ListView to 0dp and add layout_weight="1" to it.
I've got a relativelayout with three linearlayouts as children. The last one has a fixed height and has android:layout_alignParentBottom set to "true". While the middle one is properly positioned below the first one, it goes as far as the bottom of the screen, so that its lower part is overlapped by the third one.
What's wrong?
Thanks
<?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" >
<LinearLayout
android:id="#+id/category"
android:layout_width="fill_parent"
android:layout_height="50dp"
android:layout_alignParentTop="true"
android:orientation="horizontal" >
<ImageView
android:id="#+id/back_btn"
android:layout_width="29dp"
android:layout_height="34dp"
android:layout_gravity="center_vertical"
android:src="#drawable/red_arrow_left" />
<TextView
android:id="#+id/cat_name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:gravity="center"
android:textSize="20sp" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/category"
android:layout_marginTop="10dp"
android:orientation="horizontal" >
<ListView
android:id="#+id/android:list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/white"
android:cacheColorHint="#android:color/white" />
<TextView
android:id="#+id/android:empty"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/white"
android:cacheColorHint="#android:color/white"
android:padding="10dp"
android:text="#string/no_item" />
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/nav_bar"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:orientation="horizontal" >
//stuff
</LinearLayout>
</RelativeLayout>
You could try using layout weights to control the relative sizes of the child layouts. There is an article on my blog which gives some information on the use of layout weights.
As an example, try this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/category"
android:layout_width="fill_parent"
android:layout_height="50dp"
android:orientation="horizontal" >
<ImageView
android:id="#+id/back_btn"
android:layout_width="29dp"
android:layout_height="34dp"
android:layout_gravity="center_vertical" />
<TextView
android:id="#+id/cat_name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:gravity="center"
android:textSize="20sp" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/category"
android:layout_marginTop="10dp"
android:layout_weight="1"
android:orientation="horizontal" >
<ListView
android:id="#+id/android:list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/white"
android:cacheColorHint="#android:color/white" />
<TextView
android:id="#+id/android:empty"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/white"
android:cacheColorHint="#android:color/white"
android:padding="10dp"
android:text="no_item" />
</LinearLayout>
<LinearLayout
android:id="#+id/nav_bar"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:orientation="horizontal" >
//stuff
</LinearLayout>
</LinearLayout>
The RelativeLayout has been replaced by a LinearLayout, all of the relative positioning tags have been removed, and a layout_weight attribute has been added to the centre LinearLayout which will cause it to stretch to fill the available space.
Nooo... the solution is much simpler! You forgot to say that you wanted the second linear layout to be above the third one :) Yes, the second linear layout must have BOTH android:layout_below="#+id/category" and android:layout_above="#+id/nav_bar". I tested it and it works.
But of course, you can use weights to achieve the same results, it is just going to be harder...
Here is your XML with the change I mentioned (tested it in eclipse):
<?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" >
<LinearLayout
android:id="#+id/category"
android:layout_width="fill_parent"
android:layout_height="50dp"
android:layout_alignParentTop="true"
android:orientation="horizontal" >
<ImageView
android:id="#+id/back_btn"
android:layout_width="29dp"
android:layout_height="34dp"
android:layout_gravity="center_vertical"
android:src="#drawable/red_arrow_left" />
<TextView
android:id="#+id/cat_name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:gravity="center"
android:textSize="20sp" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/nav_bar"
android:layout_below="#+id/category"
android:layout_marginTop="10dp"
android:orientation="horizontal" >
<ListView
android:id="#+id/android:list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/white"
android:cacheColorHint="#android:color/white" />
<TextView
android:id="#+id/android:empty"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/white"
android:cacheColorHint="#android:color/white"
android:padding="10dp"
android:text="#string/no_item" />
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/nav_bar"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:orientation="horizontal" >
//stuff
</LinearLayout>
</RelativeLayout>
You should add an id to your second LinearLayout
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/category"
android:layout_marginTop="10dp"
android:id="#+id/YOUR_ID">
and in the third layout add android:layout_below="#id/YOUR_ID"
<LinearLayout
android:id="#+id/nav_bar"
android:layout_below="#id/YOUR_ID"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_alignParentBottom="true">