Develop Reference

Android LinearLayout with Button and FrameLayout using the Maximum Height

I am trying to make a layout where there are a LinearLayout and inside it I want a FrameLayout and a button.
I want the button to use the bottom of the linearlayout and to use the maximum width and the enough height for the button, using wrap content.
The other component, the FrameLayout I want to use it the remaining part of the screen.
How can I do it?
Here it the layout so far..
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical" >
<FrameLayout
android:id="#+id/camera_preview"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
<Button
android:id="#+id/button_capture"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:onClick="snapIt"
android:text="#string/Capture" />
</LinearLayout>
Is not showing the button :s
Thanks alot in advance ;)

Better to work out with relative layout with button aligned to parent bottom and your frame layout above it occupying the rest space of the screen.Like this
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="match_parent" >
<FrameLayout
android:id="#+id/camera_preview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/button_capture"/>
<Button
android:id="#+id/button_capture"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:onClick="snapIt"
android:layout_alignParentBottom="true"/>
</RelativeLayout>

use the following xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="#+id/button_capture"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:onClick="snapIt"
android:layout_alignParentBottom="true"
android:text="capture" />
<FrameLayout
android:id="#+id/camera_preview"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:layout_above="#+id/button_capture"
/>
</RelativeLayout>

i am just trying to make these layout, after compare my layout code and your layout code, i find a different code, there is in my code. Did you missing it or just move it away cause it useless from the layout code ?
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
<FrameLayout
android:id="#id/flayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/hello_world">
</FrameLayout>
</LinearLayout>

Android ScrollView content disappearing on removing background attribute

I have a ScrollView in a LinearLayout along with a header LinearLayout on top. I have given the main LinearLayout a background. If I keep the background for the ScrollView everything displays fine. But If I add a lot of content then the ScrollView background stretches. So I want to keep the ScrollView transparent.
But if I remove the background attribute or if I try android:background="#android:color/transparent" the content inside the ScrollView vanishes. All I can see is the header and the background from the outer LinearLayouts.
This is how I want my Views:
<Linear Layout with background image>
<Header Linear Layout>
</Header Linear Layout>
<ScrollView with no background>
<Layouts in Scroll View>
</ScrollView>
Here is the code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#drawable/bg"
android:orientation="vertical" >
<include layout="#layout/topbar" />
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
style="#style/Labels"
android:text="#string/posts_add_postcontent" />
<EditText
android:id="#+id/postsAddContent"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="#string/posts_add_postcontent_h"
android:inputType="textMultiLine"
android:maxLength="3000"
android:minLines="3" />
</LinearLayout>
</ScrollView>
</LinearLayout>
Note: The header LinearLayout is included via another file:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<RelativeLayout
android:id="#+id/topbar"
android:layout_width="fill_parent"
android:layout_height="30dip"
android:background="#layout/bgtop_repeat"
android:orientation="horizontal"
android:paddingTop="2dip" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/app_name"
android:src="#drawable/cornerlogo" />
<Button
android:id="#+id/menubuton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:background="#drawable/menubutton" />
</RelativeLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#layout/headshadow_repeat"
android:orientation="horizontal" />
</LinearLayout>
Thanks in advance :)

Try
android:layout_height="wrap_content"
in included layout

android Layouts overlapping ListView and LinearLayout

I am using FrameLayout in which I am having a search Textbox and Button and a ListView to be displayed in the next line of the TextBox
My layout is like this ,
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scaleType="fitXY"
android:src="#drawable/pattern1" />
<LinearLayout
android:id="#+id/LinearLayout02"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_gravity="top" >
<Button
android:id="#+id/btnadd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="addCustomers"
android:text="Add"
android:textColor="#000000" >
</Button>
<EditText
android:id="#+id/edtSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="2"
android:ems="10"
android:hint="Search"
android:inputType="textPersonName" >
<requestFocus />
</EditText>
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="60dp"
android:gravity="bottom"
android:orientation="vertical">
<ListView
android:id="#+id/list_customers"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="bottom|center_horizontal" >
</ListView>
</LinearLayout>
</FrameLayout>
I am using this TextView to diplay List item in the ListView,
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/txtsimple_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="60dp"
android:gravity="center_vertical"
android:textSize="20sp"
android:textStyle="bold" />
I have given margin top attribute for the ListView, but even though it overlaps on the Button and EditText controls.
I am using a FrameLayout but of no use. Please suggest me any help!!
Any help is appreciated!!

You should use LinearLayout as parent, just set android:orientation="vertical".
<?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" >
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scaleType="fitXY"
android:src="#drawable/pattern1" />
<LinearLayout
android:id="#+id/LinearLayout02"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_gravity="top" >
...
</LinearLayout>
<ListView
android:id="#+id/list_customers"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="bottom|center_horizontal" >
...
</ListView>
</LinearLayout>

FrameLayout has no 'rules of placement' so everything just stacks on to each other.
Instead, use a LinearLayout with android:orientation="vertical"
or use a RelativeLayout and add positioning values to the childs, such as android:layout_below

+1 Neoh and remove imageview, instead put the image as background image attribute at parent view
android:background="#drawable/pattern1"

FrameLayout are used very less,beacuse they are used to display single view or views which overlaps each other.
So you should use RelativeLayout.

FrameLayout is not the best option. You can use other layouts, eg, GridLayout, RelativeLayout or ListView.

Making TextView scrollable without knowing max lines

I want to make my TextView vertically scrollable. I have read "Making TextView Scrollable in Android" but since I don't know the size of the screen of the final device, I can't know which value should be set for maximum lines.
Is there any other way, so it gets the scrolling for any screen size?
My XML looks like this:
<?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">
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:layout_weight="1.0">
<TextView
android:id="#+id/consola"
android:layout_width="fill_parent"
android:layout_height="match_parent"/>
</ScrollView>
<EditText
android:id="#+id/comando"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.0"/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.0">
<Button
android:text="Conectar"
android:id="#+id/boton_conectar"
android:layout_width="wrap_content"
android:layout_weight="0.5"
android:layout_height="wrap_content">
</Button>
<Button
android:text="Enviar"
android:id="#+id/boton_enviar"
android:layout_width="wrap_content"
android:layout_weight="0.5"
android:layout_height="wrap_content">
</Button>
</LinearLayout>
</LinearLayout>

Look, here the structure of my XML layout with scroll:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scrollbars="vertical"
android:visibility="visible">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
.....
//your sub-widgets
.....
</LinearLayout>
</ScrollView>
As for me, works fine.

If you do not know number of lines (moreover, it could vary if soft input method are shown or not), you should use RelativeLayout to place you widget like TextView. And then connect both (it's critical, not one but both) top and bottom edges of it to parent withandroid:layout_alignParentTop and android:layout_alignParentBottom attibutes, or neighbors with android:layout_above and android:layout_below attributes.
After both sides are connected to other widgets, android will recalculate size of TextView and scroller properly, even if you change orientation or show/hide soft keyboard.

ScrollView is only allowed to have one sub widget.
You should put the linearlayout inside of the scroll view. and set the textview inside of the linear layout.

Put the TextView inside ScrollView with height = MATCH_PARENT
try:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ScrollView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:fillViewport="true"
android:layout_weight="1.0">
<TextView
android:id="#+id/consola"
android:layout_width="fill_parent"
android:layout_height="match_parent"/>
</ScrollView>
<EditText
android:id="#+id/comando"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="wrap_parent"
android:layout_height="wrap_content"
android:layout_weight="1">
<Button
android:text="Conectar"
android:id="#+id/boton_conectar"
android:layout_width="wrap_content"
android:layout_weight="0.5"
android:layout_height="wrap_content">
</Button>
<Button
android:text="Enviar"
android:id="#+id/boton_enviar"
android:layout_width="wrap_content"
android:layout_weight="0.5"
android:layout_height="wrap_content">
</Button>
</LinearLayout>
</LinearLayout>

Android: How can you align a button at the bottom and listview above?

I want to have a button at the bottom of the listview.
If I use relativeLayout/FrameLayout, it aligns but listView goes down to very botton.
(Behind the button at the bottom)
FrameLayout:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView
android:id="#+id/listview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentBottom="true">
<Button
android:id="#+id/btnButton"
android:text="Hello"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom" />
</FrameLayout>
</FrameLayout>
RelativeLayout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView
android:id="#+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
<Button
android:id="#+id/btnButton"
android:text="Hello"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom" />
</RelativeLayout>
</RelativeLayout>
Above two codes only work like the first image. What I want is second image.
Can anybody help?
Thank you.

A FrameLayouts purpose is to overlay things on top of each other. This is not what you want.
In your RelativeLayout example you set the ListViews height and width to MATCH_PARENT this is going to make it take up the same amount of space as its parent, and thus take up all of the space on the page (and covers the button).
Try something like:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="1"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0"/>
</LinearLayout>
The layout_weight dictates how the extra space is to be used. The Button does not want to stretch beyond the space it requires, so it has a weight of 0. The ListView wants to take up all of the extra space, so it has a weight of 1.
You could accomplish something similar using a RelativeLayout, but if it is just these two items then I think a LinearLayout is simpler.

<?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"
android:background="#ffffff"
>
<ListView android:id="#+id/ListView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1">
</ListView>
<FrameLayout android:id="#+id/FrameLayout01"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button android:id="#+id/Button01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="button"
android:layout_gravity="center_horizontal">
</Button>
</FrameLayout>
</LinearLayout>
Here is the design you are looking for.
Try it.

I needed two buttons side-by-side at the bottom. I used a horizontal linear layout, but assigning android:layout_height="0dp" and android:layout_weight="0" for the buttons' linear layout didn't work. Assigning android:layout_height="wrap_content" for just the buttons' linear layout did. Here's my working layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ListView
android:id="#+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="#+id/new_button"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="New" />
<Button
android:id="#+id/suggest_button"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Suggest" />
</LinearLayout>
</LinearLayout>

RelativeLayout will ignore its children android:layout_width or android:layout_height attributes, if the children have attributes that properly define their left and right or top and bottom values, respectively.
To achieve the result on the right image, showing the list above the button, your layout should look like this:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="#android:id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#android:id/button1"
android:layout_alignParentTop="true"/>
<Button
android:id="#android:id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="#android:string/ok"/>
</RelativeLayout>
The key is to define android:layout_alignParentTop (defines top value) and android:layout_above (defines bottom value) in your RecyclerView. This way, RelativeLayout will ignore android:layout_height="match_parent", and the RecyclerView will be placed above the Button.
Also, make sure you look into android:layout_alignWithParentIfMissing, if you have a more complex layout and you still need to define these values.

I am using Xamarin Android, and my requirement is exactly the same as William T. Mallard, above, i.e. a ListView with 2 side-by-side buttons under it.
The solution is this answer didn't work in Xamarin Studio however - when I set the height of the ListView to "0dp", the ListView simply disappeared.
My working Xamarin Android code is as follows:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView
android:id="#+id/ListView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_above="#+id/ButtonsLinearLayout" />
<LinearLayout
android:id="#id/ButtonsLinearLayout"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:orientation="horizontal"
android:layout_alignParentBottom="true">
<Button
android:id="#+id/Button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
<Button
android:id="#+id/Button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
</RelativeLayout>
I aligned ButtonsLinearLayout to the bottom of the screen, and set the ListView to be above ButtonsLinearLayout.

#jclova one more thing you can do is use layout-below=#+id/listviewid in relative layout

In your relative layout height of listview is match_parent which is fill_parent(for 2.1 and older) so best solution is if you want to use relative layout then first Declare your button then your list view, make list view position as above your button id, If you want button always at bottom then make it alignParentBottom..
Snippet is
<RelativeLayout
android:layout_width="fill_parent" android:layout_height="fill_parent"
android:id="#+id/rl1"><Button
android:layout_width="MATCH_PARENT"
android:layout_height="WRAP_CONTENT"
/><ListView
android:layout_width="MATCH_PARENT"
android:layout_height="0"
android:layout_above="#id/listview"/></RelativeLayout>
This prevents your list view taking whole place and make your button appear..

This will be the best and the most simple solution to the problem. Just add android:layout_above="#id/nameOfId" in the layout that you want to move above with respect to that layout.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
tools:context="com.sumeru.commons.activity.CommonDocumentUploadActivity">
<ListView
android:id="#+id/documentList"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#id/verifyOtp" />
<com.sumeru.commons.helper.CustomButton
android:id="#+id/verifyOtp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="#string/otp_verification" />
</RelativeLayout>