android "layout_alignParentBottom" in relative layout - android

So, I have this layout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#FFFF00"
android:minHeight="100dp"
android:layout_gravity="bottom"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:textColor="#000000"
android:background="#FF0000"
android:text="Hello World"
/>
<Button
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_alignParentRight="true"
android:text="button"/>
</RelativeLayout>
and this is how it looks:
but if I add android:layout_alignParentBottom="true" to the button here is how it looks:
Can someone please explain me this behavior?
How to put my button at the bottom without resizing the yellow layout and without adding thousand of layouts for workarounds?


this solution worked for me
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#FFFF00"
android:minHeight="100dp"
android:orientation="horizontal"
android:layout_gravity="bottom"
>
<TextView
android:id="#+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:textColor="#000000"
android:background="#FF0000"
android:text="Hello World"
/>
<Button
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_gravity="bottom|right"
android:text="button"/>
</FrameLayout>


this one fast one screen
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="bottom"
android:background="#FFFF00"
android:minHeight="100dp" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="button" />
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignTop="#+id/button1"
android:background="#000000"
android:text="TextView" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/button1"
android:layout_alignParentLeft="true"
android:background="#000000"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:orientation="vertical" >
</LinearLayout>
</RelativeLayout>


just for try, can you double the min size of your layout and try it again?
or maybe you can set a fix the hight of the layout and change it dynamically from the code when needed.


<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="bottom"
android:background="#FFFF00"
android:minHeight="100dp" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:textColor="#000000"
android:background="#FF0000"
android:text="Hello World"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="button" />
</RelativeLayout>
try this code


Unfortunately bug still exists in newer versions of android.
Anyway, I found that following can solve that problem :
Delete minHeight of RelativeLayout
Insert TextView in a LinearLayout:
<LinearLayout
android:id="#+id/tvLayout"
android:layout_alignParentTop="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:minHeight="100dp"
android:gravity="top"
>
<TextView
android:id="#+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#FFFF00FF"
android:text="Helo"
/>
</LinearLayout>
Delete layout_alignParentBottom from Button and add layout_alignBottom="#id/tvLayout"
Now LinearLayout "controls" the height of RelativeLayout.
If TextView height is bigger than minHeight of 100dp, it will expand.
And button will always align its bottom to LinearLayout, equal to RelativeLayout one.


You can build a responsive UI with ConstraintLayout
compile 'com.android.support.constraint:constraint-layout:1.0.2'
The result layout will looks like
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#FFFF00"
android:minHeight="100dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#FF0000"
android:text="Hello World"
android:textColor="#000000"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent" />
</android.support.constraint.ConstraintLayout>
The preview is:
Read more here -
https://developer.android.com/training/constraint-layout/index.html
https://android-developers.googleblog.com/2017/08/understanding-performance-benefits-of.html

Related

How to display my Linearlayout with Imageview inside it around scrollview?

I have a problem, to show my image in android.
For this, you can see below the output of my emulator.
I have a ScrollView with 2 childrean.
One is the TextView, and the other one is the ImageView.
When I scroll down, I can only see the text of the TextView.
But not the image of the Imageview.
Here is a part of my layout:
<RelativeLayout
android:layout_marginTop="5dp"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ScrollView
android:layout_marginLeft="260dp"
android:layout_marginBottom="50dp"
android:layout_marginTop="20dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="#+id/text_handlungsleitfaden_strassenfuehrer"
android:layout_marginTop="10dp"
android:scrollbars="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ImageView
android:id="#+id/bild_handlungsleitfaden_strassenfuehrer"
android:layout_marginTop="10dp"
android:src="#drawable/maschine"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</ScrollView>
<Button
android:id="#+id/handlungsleitfaden_btn"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="7dp"
android:textAllCaps="false"
android:text="weiter" />
</RelativeLayout>
Does anybody have an idea how to fix it? :)
Thank you

just provide orientation to linearLayout, By default orientation is horizontal so you have to provide android:orientation="vertical" like this :
<ScrollView
android:layout_marginLeft="260dp"
android:layout_marginBottom="50dp"
android:layout_marginTop="20dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/text_handlungsleitfaden_strassenfuehrer"
android:layout_marginTop="10dp"
android:scrollbars="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<ImageView
android:id="#+id/bild_handlungsleitfaden_strassenfuehrer"
android:layout_marginTop="10dp"
android:src="#drawable/maschine"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</ScrollView>
<Button
android:id="#+id/handlungsleitfaden_btn"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="7dp"
android:textAllCaps="false"
android:text="weiter" />
</RelativeLayout>

The problem is , You didn't set orientation for the linearlayout.
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
Try adding,
android:orientation="vertical"

You are forgetting to give orientation to linear layout.
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">

I hope this will work for you
Add below line to LinearLayout
android:orientation="vertical"
And add below line to ScrollView
android:fillViewport="true"

Give orientation in Linear layout
android:orientation = "vertical"

Try this
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/text_handlungsleitfaden_strassenfuehrer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:text="Nilesgh Eayjdfp"
android:scrollbars="vertical" />
<ImageView
android:id="#+id/bild_handlungsleitfaden_strassenfuehrer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:src="#drawable/abc" />
</LinearLayout>
</ScrollView>
<Button
android:id="#+id/handlungsleitfaden_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_margin="7dp"
android:text="weiter"
android:textAllCaps="false" />
</RelativeLayout>

Unfortunately you forgot this line
android:orientation="vertical"
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">

How to change andorid layout as per image given below

Currently my listview design looks like
But I want to make it look like below image
Where image will be on right hand side, title in Bold and Subtitle just below it. What changes do I need to make in my layout, Below is my code. Thanks in
advance.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="4dp"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/ivImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:src="#drawable/ic_launcher"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/tvName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Tom Cruise"
android:textColor="#166CED"
android:textAppearance="?android:attr/textAppearanceLarge" />
</LinearLayout>
</LinearLayout>
<TextView
android:id="#+id/tvDescriptionn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#009A57"
android:text="Description" />
</LinearLayout>

For better result to manage your view use relativelayout.
You can manage your layout as example give below-
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="4dp"
android:orientation="vertical">
<android.support.v7.widget.CardView
android:id="#+id/cardView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_marginTop="5dp"
card_view:cardBackgroundColor="#color/grey">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/arrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="5dp"
android:src="#drawable/arrow"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="#+id/arrow"
android:orientation="vertical" >
<TextView
android:id="#+id/tvName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Murdochs needed counselling after hacking scandle says magazine"
android:textColor="#166CED"
android:padding="5dp"
android:textAppearance="?android:attr/textAppearanceLarge" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/tvSubtitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="#+id/ivImage"
android:padding="5dp"
android:text="NEW YORK:The British phone hacking scandle"
android:textColor="#000"
android:textAppearance="?android:attr/textAppearanceSmall" />
<ImageView
android:id="#+id/ivImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:src="#drawable/ic_launcher"/>
</RelativeLayout>
</LinearLayout>
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>

I would suggest you to use relative layout . this will make your layout more flexible to edit. I have suggested a layout below , give it a try .
<?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">
<TextView
android:id="#+id/tvName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="10dp"
android:gravity="center_horizontal"
android:text="Tom Cruse"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#166CED" />
<ImageView
android:id="#+id/ivImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_below="#+id/tvName"
android:layout_margin="5dp"
android:src="#drawable/ic_launcher" />
<TextView
android:id="#+id/tvDescriptionn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_below="#+id/tvName"
android:layout_margin="10dp"
android:layout_toLeftOf="#+id/ivImage"
android:text="Description"
android:textColor="#009A57" />
</RelativeLayout>
Please do accept this answer if it worked for you.

You have to use flowTextView jar to your project. Here you can find the jar:
https://github.com/deano2390/FlowTextView

Inside LinearLayout, place textview at the top to show the title. Make height wrap_content and width match_parent.
Below this, add linearlayout which contains textview and image. set orientation horizontal to inner liner layout.
For better placing you can always used relative layout. for example
<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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.example.testlayout.MainActivity" >
<TextView
android:id="#+id/titleText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/hello_world" />
<TextView
android:id="#+id/descriptionText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/titleText"
android:text="description"/>
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/titleText"
android:layout_toLeftOf="#+id/rightArrow"
android:src="#drawable/ic_launcher" />
<ImageView
android:id="#+id/rightArrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/titleText"
android:src="#drawable/ic_launcher"
android:layout_alignParentEnd="true" />
</RelativeLayout>

How to align LinearLayout at bottom in a RelativeLayout?

I'm trying to get the LinearLayout to be aligned at the bottom of this RelativeLayout. I tried setting alignParentBottom="true", but then I can't even see the contents of the LinearLayout. Is there another way to accomplish what I need?
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="90dp"
android:layout_height="200dp"
android:minHeight="200dp"
android:background="#color/colorPrimaryDark"
android:elevation="2dp"
android:gravity="center">
<TextView
android:id="#+id/textView_bookName"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="1dp"
android:padding="10dp"
android:textSize="20dp"
android:textColor="#color/white"
/>
<TextView
android:id="#+id/textView_bookAuthor"
android:gravity="center_horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_margin="1dp"
android:text="Author"
android:textSize="10dp"
android:textColor="#color/white"
android:layout_below="#+id/textView_bookName"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_below="#+id/textView_bookAuthor"
>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/button_download_book"
android:text="#string/download"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/button_read_book"
android:text="Read"
android:visibility="gone"/>
<ProgressBar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/progressbar_book_download"
style="#android:style/Widget.ProgressBar.Horizontal"
android:progress="0"
android:visibility="gone"
/>
</LinearLayout>
</RelativeLayout>

Add to LinearLayout: android:layout_alignParentBottom="true"
eg.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_alignParentBottom="true"
android:layout_below="#+id/textView_bookAuthor">
[...]

<LinearLayout
android:layout_alignParentBottom="true"
android:layout_height="100dp"
android:layout_width="wrap_content">
</LineaLayout>

Try using a LinearLayout that contains both layouts and setting them an android:layout_weight and android:layout_height="0dp".
Don't forget to set the ratio between the weights to one you'd like and setting the container's android:orientation to vertical.
BTW, for textSize you better use sp and not dp...

Please try below xml which I have modified. It will solve the issue. I have removed the android:layout_below="#+id/textView_bookAuthor" and added android:layout_alignParentBottom="true".
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="90dp"
android:layout_height="200dp"
android:minHeight="200dp"
android:background="#color/colorPrimaryDark"
android:elevation="2dp"
android:gravity="center">
<TextView
android:id="#+id/textView_bookName"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="1dp"
android:padding="10dp"
android:textSize="20dp"
/>
<TextView
android:id="#+id/textView_bookAuthor"
android:gravity="center_horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_margin="1dp"
android:text="Author"
android:textSize="10dp"
android:layout_below="#+id/textView_bookName"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="vertical"
>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/button_download_book"
/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/button_read_book"
android:text="Read"
android:visibility="gone"/>
<ProgressBar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/progressbar_book_download"
style="#android:style/Widget.ProgressBar.Horizontal"
android:progress="0"
android:visibility="gone"
/>
</LinearLayout>
</RelativeLayout>

Set TextView width according to other View's width

I have a ImageView, the image is loaded from the net and can vary in width.
Below I have a TextView with a description of the image. I want the TextView to be exactly as wide as the ImageView.
My try was this:
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical" >
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal" />
<TextView
android:id="#+id/imagedescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:textAppearance="#style/SmallTextGray" />
</LinearLayout>
which somehow works as the TextView's width is set accoring to that of the ImageView, but the TextView end after 2 lines:
I know I could set the TextView's width programmatically after I know the image's width, but is there also a way to do it in the XML layout?

I don't know if it will work, but try doing in your code, after load the image:
textView.setWidth(imageView.getDrawable().getIntrinsicWidth());

With a small change of layout: replace LinearLayout with a RelativeLayout:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<TextView
android:id="#+id/imagedescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/iv"
android:layout_alignRight="#+id/iv"
android:layout_below="#+id/iv"
android:layout_marginTop="8dp"
android:gravity="center_horizontal"
android:textAppearance="#style/SmallTextGray" />
</RelativeLayout>
This way the TextView is always below imageView and its bounds are aligned to imageViews

You can use weight like this:
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:weightSum="5">
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="1" />
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="3"
android:text="2" />
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="3" />

You can use the wight property in xml and give equal weight to both imageview and textview. then both size will be equal

In your case do this:
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="center_horizontal" />
<TextView
android:id="#+id/imagedescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_weight="1"
android:textAppearance="#style/SmallTextGray" />
</LinearLayout>

Try This.This will work
<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:layout_gravity="center_horizontal"
android:orientation="vertical" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_gravity="center_horizontal"
android:orientation="vertical" >
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
/>
<TextView
android:id="#+id/imagedescription"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:typeface="monospace" />
</LinearLayout>
</LinearLayout>

This works for me:
<?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:layout_gravity="center_horizontal"
android:orientation="vertical">
<LinearLayout android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical">
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/controller"
android:layout_gravity="center_horizontal"/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TableLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TableRow>
<TextView
android:layout_width="wrap_content"
android:text="asdasdasasasdasdasdasdasdasdasdadasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdsadasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdsdasdasdasdsadsadsadasdasdsadsadsadasdasdasdasdasdasddasdasdasdasdasdasdasdsadasdasdasdasdasdasdsadasdasdsa..."/>
</TableRow>
</TableLayout>
</RelativeLayout>
</LinearLayout>
</LinearLayout>

Align two-button layout left and right in Android

I want to align two buttons with a linear layout, one on the left, and one on the right, like the next and previous buttons on an image gallery. I tried to align them but it doesn't work.
XML layout code:
<?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"
android:background="#android:color/white"
android:gravity="bottom" >
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#android:color/black" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="prev"
android:layout_alignParentRight="true" />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="next" />
</LinearLayout>
</LinearLayout>
Actual output:
Expected output:
How can I fix it?

Use a RelativeLayout. There you can set android:layout_alignParentLeft and android:layout_alignParentRight.
This should work for you:
<?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"
android:background="#android:color/white"
android:gravity="bottom" >
<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#android:color/black" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="prev"
android:layout_alignParentLeft="true" />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="next"
android:layout_alignParentRight="true"/>
</RelativeLayout>
</LinearLayout>

With Linear Layout
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Prev"/>
</LinearLayout>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Next"/>
</LinearLayout>
With Relative Layout
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Prev"
android:layout_alignParentLeft="true"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Next"
android:layout_alignParentRight="true"/>
</RelativeLayout>

Use Relative layout in your LinearLayout;
Also add android:layout_alignParentLeft="true" to "prev" Button
and android:layout_alignParentRight="true" to "next" Button
<?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:background="#android:color/white"
android:gravity="bottom"
android:orientation="vertical" >
<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#android:color/black" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true" <---- ADD this prop
android:text="prev" />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true" <----- ADD this prop
android:text="next" />
</RelativeLayout>
</LinearLayout>

I guess, the simplest solution is to use View in your inner LinearLayout.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="prev"/>
<View
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="1"/>
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="next"/>
</LinearLayout>

Something like this:
<?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:orientation="vertical" >
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="right" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="Button" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="#+id/button1"
android:orientation="vertical" >
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
The idea is, to create a RelativeLayout as container and put first Button and then stick it to the right of parent view. After that, add Another button inside LinearLayout and set this LinearLayout into the left of first Button.
Here's the result.

ur layout xml should be as shown below
<?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"
android:gravity="bottom"
android:background="#fff">
<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#000"
android:layout_gravity="bottom" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:text="Pre" />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="Next" />
</RelativeLayout>
</RelativeLayout>

Use a RelativeLayout instead of a LinearLayout you can add the tags android:layout_alignParentRight="true" and android:layout_alignParentLeft="true" on each button.

You can use RelativeLayout like 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:background="#android:color/white"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#android:color/black"
android:gravity="bottom"
android:orientation="horizontal" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:text="prev" />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="next" />
</RelativeLayout>
</LinearLayout>
(I used grey instead of white for the screenshot)

Use a FrameLayout and add the layout_gravity attribute in each of the buttons

Do something like this it will surely help you out
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/Linear"
android:textSize="35dp"
android:layout_margin="90dp"
/>
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#android:color/black">
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Relative"
/>
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="200dp"
android:text="Constraint" />
</LinearLayout>
</LinearLayout>

Use margin_Start and End to seprate the buttons in the layout
<?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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="-:Linear Layout:-"
android:textSize="35sp"
android:layout_gravity="center"
android:layout_marginTop="250dp"
tools:ignore="HardcodedText"/>
<LinearLayout
android:id="#+id/linear2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginTop="90dp">
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Relative"
tools:ignore="ButtonStyle,HardcodedText"/>
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="200dp"
android:text="Constraint"
tools:ignore="ButtonStyle"
/>
</LinearLayout>
</LinearLayout>
[enter image description here][1]
[1]: https://i.stack.imgur.com/NMYj2.png

For Better Performance:
Best to put two views left and right and one view between in linear layout rather than relative layout. Use the below code it will also remove the nesting of views .... It will be good in performance perpective :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical">
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="prev" />
<TextView android:text="Hi its working"
android:layout_width="0dp"
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:text="next" />
</LinearLayout>

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