Develop Reference

How to make Android xml Linerlayout at the bottom of the activity in Android Studio?

How do I make LinearLayout in Android Studio at the bottom of the page. The result from the code below
I want the highlighted darken layout to be at the bottom of the page.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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=".MainPage"
android:orientation="vertical"
android:background="#ffffff">
<Button
android:id="#+id/taptoscan"
android:layout_marginTop="40dp"
android:layout_marginBottom="10dp"
android:layout_width="120dp"
android:layout_height="120dp"
android:background="#drawable/barcode"
android:layout_gravity="center"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Tap to Scan"
android:fontFamily="#font/antic"
android:layout_gravity="center"
android:textSize="18sp"/>
<!--here is the layout i want to put at the bottom of the page-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="#color/colorPrimaryDark"
android:orientation="horizontal"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom"
android:gravity="bottom">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</RelativeLayout>
</LinearLayout>
In the above code I tried the below and did not worked.
android:layout_alignParentBottom="true"
android:layout_gravity="bottom"
android:gravity="bottom"

You can use RelativeLayout at the outside. Something like this, and then ADD new one LinearLayout after that.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:orientation="vertical"
tools:context=".MainPage">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button
android:id="#+id/taptoscan"
android:layout_width="120dp"
android:layout_height="120dp"
android:layout_gravity="center"
android:layout_marginTop="40dp"
android:layout_marginBottom="10dp"
android:background="#drawable/barcode" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:fontFamily="#font/antic"
android:text="Tap to Scan"
android:textSize="18sp" />
</LinearLayout>
<!--here is the layout i want to put at the bottom of the page-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom"
android:background="#color/colorPrimaryDark"
android:gravity="bottom"
android:orientation="horizontal">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</RelativeLayout>

Use Frame Layout as base layout to do it in the best way, it's gonna work definitely
Just use layout_gravity="bottom" in the LinearLayout which you want at bottom and
Just like this :
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:orientation="vertical"
tools:context=".MainPage">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button
android:id="#+id/taptoscan"
android:layout_width="120dp"
android:layout_height="120dp"
android:layout_gravity="center"
android:layout_marginTop="40dp"
android:layout_marginBottom="10dp"
android:background="#drawable/barcode" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:fontFamily="#font/antic"
android:text="Tap to Scan"
android:textSize="18sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_gravity="bottom"
android:background="#color/colorPrimaryDark"
android:orientation="horizontal">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</FrameLayout>

The approach below would help you achieve your design specifications with zero overlappings. Basically, there are four key steps:
Change your root layout to a RelativeLayout.
Inside the RelativeLayout, add a LinearLayout that would contain your Button and your TextView.
Inside the same RelativeLayout, add the LinearLayout that you intend to pin to the bottom of the screen.
Make sure yoU set the first LinearLayout on top of the second by using the android:layout_above="" attribute.
Now, here's the code:
<?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=".MainPage">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#ffffff"
android:layout_above="#+id/bottomView">
<Button
android:id="#+id/taptoscan"
android:layout_marginTop="40dp"
android:layout_marginBottom="10dp"
android:layout_width="120dp"
android:layout_height="120dp"
android:background="#drawable/barcode"
android:layout_gravity="center"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Tap to Scan"
android:fontFamily="#font/antic"
android:layout_gravity="center"
android:textSize="18sp"/>
</LinearLayout>
<!--here is the layout i want to put at the bottom of the page-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:id="#+id/bottomView"
android:background="#color/colorPrimaryDark"
android:orientation="horizontal"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom"
android:gravity="bottom">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</RelativeLayout>
</LinearLayout>
</RelativeLayout>
I hope this helps.

Android how to fill parent but leave some space

The title isn't good but i didn't know how else to describe
I have a relative layout with 2 elements, some container and a button at bottom.
I want the container fill all the space in the relativelayout leaving just the space enough to put the button
here is an example:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mainLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout //i'm using linearlayout as an example, it could be anything here
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/b3"
android:gravity="center"
android:orientation="vertical">
</LinearLayout>
<Button
android:id="#+id/b3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="asdasdasdasdasdasdasdasd" />
</RelativeLayout>
here is how i want it look like
The red means the relavitive layout, the green the linear layout, and the yellow means the button...
how can i make it?

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
android:background="#color/red"
android:padding="5dp"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/b"
android:background="#color/green">
</LinearLayout>
<Button
android:id="#+id/b"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="this is the button"
android:background="#color/yellow"/>
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mainLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorAccent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignTop="#+id/b3"
android:layout_margin="4dp"
android:background="#color/colorPrimary"
android:gravity="center"
android:orientation="vertical">
</LinearLayout>
<Button
android:id="#+id/b3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="asdasdasdasdasdasdasdasd" />
</RelativeLayout>

This should give you something close to what you want:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mainLayout"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout //i'm using linearlayout as an example, it could be anything here
android:layout_width="match_parent"
android:layout_height="0px"
android:layout_weight="3"
android:gravity="center"
android:orientation="vertical">
</LinearLayout>
<Button
android:id="#+id/b3"
android:layout_width="wrap_content"
android:layout_height="0px"
android:layout_weight="1"
android:text="asdasdasdasdasdasdasdasd" />
</LinearLayout>

Why does this button not shown

I'm trying to make a footer under view pager but it doesn't appear at all, i have no idea why? here is what i tried, i added the button under view pager but it doesn't appear !
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/activity_survay"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/ferani">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v4.view.ViewPager
android:id="#+id/survey_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true" />
<Button
android:id="#+id/login"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="right"
android:layout_marginTop="5dp"
android:background="#drawable/primary_round"
android:padding="5dp"
android:layout_weight="1"
android:text="التالي" />
</LinearLayout>
</LinearLayout>

No Need to use three Nested Linear Layout. Try this one:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/activity_survay"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/txt_color_white"
>
<android.support.v4.view.ViewPager
android:id="#+id/survey_pager"
android:layout_width="match_parent"
android:layout_above="#+id/login"
android:layout_height="match_parent"
/>
<Button
android:id="#+id/login"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:padding="5dp"
android:layout_alignParentBottom="true"
android:text="التالي" />
</RelativeLayout>

Your viewPager is at match_parent while the button has match_parent too and have a weight
You should try to put 0dp to the width and set a weight to both of them
also your second linear layout seems useless since by default it will apply a vertical orientation

Scroll layout wouldn't show one of my views?

I want to have the following layout :
But when I run the code the first linear layout which contains a relative layout and an image is shown correctly.
Then there is the "view pager" but it is not on the screen.
and then there is a text box and a button which are there too.
So why my view pager is missing?
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical"
tools:ignore="NestedWeights,ContentDescription" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="5" >
<ImageView
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="3"
android:src="#drawable/sp_page_name"
tools:ignore="ContentDescription" />
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="2"
android:padding="#dimen/product_views_horizontal_padding"
tools:ignore="NestedWeights" >
</RelativeLayout>
</LinearLayout>
<android.support.v4.view.ViewPager
android:id="#+id/pager_sharepoint"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:contentDescription="#string/TODO"/>
<TextView
android:id="#+id/sharepoint_description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/sharepoint_description"
tools:ignore="SelectableText" />
<ImageButton
android:id="#+id/sp_more_info"
android:layout_width="70dp"
android:layout_height="30dp"
android:background="#drawable/more_info_icon"
android:layout_gravity="left"
android:onClick="sp_more"/>
</LinearLayout>
</ScrollView>

The height of your ViewPager is android:layout_height="wrap_content".
So if your ViewPager doesn't contain other views, it won't be visible.

Well, I found out that scrolling views do not work very good together.
For my layout I solve the problem by changing the height and width of the viewpager to static sizes. Actually I defined some different sizes in my dimen.xml files for different screen sizes and use them for the height and width of my view pager.
Here is the code:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical"
tools:ignore="NestedWeights,ContentDescription" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="5" >
<ImageView
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="3"
android:src="#drawable/sp_page_name"
tools:ignore="ContentDescription" />
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="2"
android:padding="#dimen/product_views_horizontal_padding"
tools:ignore="NestedWeights" >
</RelativeLayout>
</LinearLayout>
<android.support.v4.view.ViewPager
android:id="#+id/pager_sharepoint"
android:layout_width="#dimen/viewpager_width"
android:layout_height="#dimen/viewpager_height"
android:contentDescription="#string/TODO"/>
<TextView
android:id="#+id/sharepoint_description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/sharepoint_description"
tools:ignore="SelectableText" />
<ImageButton
android:id="#+id/sp_more_info"
android:layout_width="70dp"
android:layout_height="30dp"
android:background="#drawable/more_info_icon"
android:layout_gravity="left"
android:onClick="sp_more"/>
</LinearLayout>
</ScrollView>

Overlap Layout with ImageView

Im trying to create the following Layout:
The border of the RelativeLayout is realized with a rectangle shape as background, but I cannot get the ImageView overlap the RelativeLayout with half of it in and half of it out of the border. Is this even possible with RelativeLayout (And if not: What alternative do I have)?
layout.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView"
android:src="#drawable/imageresource"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"/>
<RelativeLayout
android:padding="#dimen/item_inner_margin"
android:background="#drawable/item_border"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/relativeLayout"
android:layout_below="#+id/imageView">
<!-- Stuff in the layout -->
</RelativeLayout>
</RelativeLayout>
Thanks in advance
danijoo

This might be what you're looking for:
<?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="#android:color/darker_gray"
android:orientation="vertical"
android:scrollbarAlwaysDrawVerticalTrack="true">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp"
android:layout_marginRight="30dp"
android:layout_marginTop="70dp"
android:background="#fff"
android:elevation="4dp"
android:orientation="vertical"
android:padding="20dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="200dp"
android:orientation="vertical"
android:paddingTop="30dp">
<!-- add content here -->
</LinearLayout>
</RelativeLayout>
<ImageView
android:id="#+id/imageview1"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_centerHorizontal="true"
android:layout_marginTop="16dp"
android:background="#android:color/holo_blue_bright"
android:elevation="4dp"
/>
</RelativeLayout>