Android linear layout align center and right

Android linear layout align center and right - android

This is what I have:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="#+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:background="#FFFFFF">
<LinearLayout android:id="#+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:background="#E30000"
android:layout_gravity="center_horizontal|center_vertical"
android:gravity="center_horizontal|center_vertical">
<TextView
android:id="#+id/TextView00"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFF"
android:textSize="20px"
android:textStyle="bold"
android:text="Something"
android:gravity="right|center_vertical"
/>
<LinearLayout android:id="#+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:gravity="right|center_vertical"
android:layout_gravity="center_vertical"
android:background="#E30000">
<Button
android:id="#+id/btnCalls"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableLeft="#drawable/icon"
android:gravity="right|center_vertical"
/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
And I want this:
So horizontal center align the text and vertical center align the button.
What am I missing? I haven't tried RelativeLayout and I would prefer LinearLayout to work this out.

android:gravity="right|center_vertical"
aligns your TextView to the right. How about center_horizontal?
And your LinearLayouts have the same ID, if there is not more code, then I would delete one of them.

try this one
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="#+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:background="#FFFFFF">
<LinearLayout android:id="#+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:background="#E30000"
android:layout_gravity="center_horizontal|center_vertical"
android:gravity="center_vertical">
<TextView
android:id="#+id/TextView00"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFF"
android:textSize="20px"
android:textStyle="bold"
android:text="Something"
android:layout_weight="1"
android:gravity="center"/>
<LinearLayout android:id="#+id/LinearLayout01"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:gravity="right|center_vertical"
android:layout_gravity="center_vertical"
android:background="#E30000"
android:layout_width="wrap_content">
<Button
android:id="#+id/btnCalls"
android:layout_width="wrap_content"
android:drawableLeft="#drawable/icon"
android:gravity="right|center_vertical"
android:layout_height="wrap_content"
android:layout_margin="5dip"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>

I found none of the answers work exactly as the OP intended, but the RelativeLayout solution was the closest one. Except that the TextView wasn't centered. But, with layout_centerInParent=true, works like a charm:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/TextView00"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFF"
android:textSize="20px"
android:textStyle="bold"
android:text="Something"
android:layout_centerInParent="true" />
<Button
android:id="#+id/btnCalls"
android:drawableLeft="#drawable/icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"/>
</RelativeLayout>

you have used android:gravity="right|center_vertical" in your textview. Use android:gravity="center".

Try to add empty View inside horizontal LinearLayout between element that you want see left and element that you want to see right, e.g.:
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<View
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="1"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>

define layout weight for TextView and LinearLayout
set android:layout_weight="1" to TextView
set android:layout_weight="0" to LinearLayout
and also change the layout_width="wrap_content" to LinearLayout
and set layout_gravity="center" to TextView

I think,gravity means the position of things inside the component(for textview,it means the text you have given)in component where layout_gravity means position of component itself in the whole layout.So...
Try Using:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="#+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:background="#FFFFFF"
>
<LinearLayout android:id="#+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:background="#E30000"
android:layout_gravity="right"
android:gravity="center_vertical|right"
>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right|center_vertical"
android:gravity="center_vertical|center"
android:layout_weight="0.9"
>
<TextView
android:id="#+id/TextView00"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFF"
android:textSize="20px"
android:textStyle="bold"
android:text="Something"
android:gravity="center_horizontal"
android:layout_gravity="center_horizontal|center_vertical"
/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right|center_vertical"
android:gravity="center_vertical|right"
android:paddingTop="5dip"
android:layout_weight="0.1"
>
<Button
android:id="#+id/btnCalls"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableLeft="#drawable/icon"
android:layout_gravity="center_vertical"
android:gravity="center"
/>
</LinearLayout>
</LinearLayout>
</LinearLayout>

Just use RelativeLayout, and wallaaa!!!
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/TextView00"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFF"
android:textSize="20px"
android:textStyle="bold"
android:text="Something"
android:gravity="center" />
<Button
android:id="#+id/btnCalls"
android:drawableLeft="#drawable/icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"/>
</RelativeLayout>

The solution for this is-
android:gravity="center_vertical"
Normally you'll also have to take care of its parent's position too to make sure it works.

Related

Align checkbox to the right side in LinearLayout android

I am trying to make some text views with checkboxes in LinearLayout. I want for result like this:
TextView Ckeckbox
TextViewwwwww Ckeckbox
TextV Ckeckbox
But currently I have this:
TextView Checkbox
TextViewwwww Checkbox
TextView Checkbox
Here is my xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentTop="true"
android:orientation="horizontal">
<TextView
android:id="#+id/itemTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<CheckBox
android:id="#+id/checkItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
</LinearLayout>
And this xml gives me same result:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentTop="true"
android:orientation="horizontal">
<TextView
android:id="#+id/itemTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="start"/>
<CheckBox
android:id="#+id/checkItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="end"/>
</LinearLayout>

You can use the layout_weight attribute on your TextView only to automatically designate the TextView to fill any space which the CheckBox does not occupy. For example, the following will set your checkboxes to the end (provided they have no text associated with them) and then lets the TextView fill the rest of the layout.
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:orientation="horizontal">
<TextView
android:id="#+id/itemTitle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
<CheckBox
android:id="#+id/checkItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
Additionally, you should use match_parent instead of fill_parent as fill_parent is deprecated.

Try this:
<LinearLayout 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:orientation="vertical"
tools:context="com.example.ipdemo.MainActivity" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="#+id/itemTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="TextView" />
<CheckBox
android:id="#+id/checkItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="TextView" />
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
</LinearLayout>

Use layout weights and 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:layout_alignParentTop="true"
android:orientation="horizontal"
android:weightSum="5">
<TextView
android:id="#+id/itemTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="wdjhwdjwo"/>
<CheckBox
android:id="#+id/checkItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="4"/>
</LinearLayout>

You should be using layout_weight attribute to achieve the effect
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/itemTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
<CheckBox
android:id="#+id/checkItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
So horizontally both the views will be occupying half of the screen size. You could adjust layout_weight to achieve the desired outcome.
There maybe other ways to do this, but I think this method is the best way.

Use layout_gravity="right" instead of gravity="end" if you're working with vertical layouts.
Your CheckBox tag should look like:
<CheckBox
android:id="#+id/checkItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"/>
EDIT: On horizontal layouts, try layout_weight="1", that will make both of your elements fill half of the layout space.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:orientation="horizontal">
<TextView
android:id="#+id/itemTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"/>
<CheckBox
android:id="#+id/checkItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"/>
</LinearLayout>

check the following use android:layout_weight="1" in both view
<?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:layout_alignParentTop="true"
android:orientation="horizontal">
<TextView
android:id="#+id/itemTitle"
android:layout_width="fill_parent"
android:layout_weight="1"
android:layout_height="wrap_content"
/>
<CheckBox
android:id="#+id/checkItem"
android:layout_width="fill_parent"
android:layout_weight="1"
android:layout_height="wrap_content"
/>
</LinearLayout>

spacing between buttons

Sorry as this is a repeated question , but posting Is necessary as everyone would have different setups
Here is my xml file .... Please suggest to bring proper spacing between the three buttons , Any further suggestions would be appreciated
MainMenu.xml
<?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="#drawable/mainbackground"
android:orientation="vertical"
android:paddingBottom="2dp"
android:paddingLeft="2dp"
android:paddingRight="2dp"
android:paddingTop="2dp" >
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#drawable/maintitle">
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button
android:id="#+id/BtnDisplay"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:layout_marginTop="100dip"
android:background="#drawable/buttonshape"
android:text="#string/mem_sig_display"
android:textColor="#315683"
android:textSize="30px" />
</LinearLayout>
<Button
android:id="#+id/BtnSlave"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:background="#drawable/buttonshape"
android:gravity="center_vertical|center_horizontal"
android:paddingBottom="2dp"
android:paddingLeft="2dp"
android:paddingRight="2dp"
android:paddingTop="2dp"
android:text="#string/mes_mod_linked"
android:textColor="#315683"
android:textSize="30px" />
<Button
android:id="#+id/Histbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/buttonshape"
android:gravity="center"
android:paddingBottom="2dp"
android:paddingLeft="2dp"
android:paddingRight="2dp"
android:paddingTop="2dp"
android:text="#string/History"
android:textColor="#315683"
android:textSize="30sp" />
</LinearLayout>
I tried the margins and padding but seems like am not able to detect the right measurements required

Best way to deal with multiple buttons in linear layout is by using
weight property
. Also for spacing use padding or margin (carefully use one of them as padding is between components and margin is with refernce to boundaries).

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"
android:padding="2dp" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<Button
android:id="#+id/BtnDisplay"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textColor="#315683"
android:textSize="30px" />
<Button
android:id="#+id/BtnSlave"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical|center_horizontal"
android:textColor="#315683"
android:textSize="30px" />
<Button
android:id="#+id/Histbutton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#315683"
android:textSize="30sp" />
</LinearLayout>
</LinearLayout>

Linear Layout weight not working in android

I have a problem in my android layout.
I have an Image as following contains two parts:
(green border) will contains a descriptive meaning
(red border) I have to position a text in this part to be centered
I want the text to be in the bottom 1/3 of the image.
I have tried to make it programmatically but it doesn't work as I can't get (x, y, w, h) of an Image except it has rendered to the screen.
I have tried also the following code:
<RelativeLayout
android:id="#+id/item1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:layout_weight="1" >
<ImageView
android:id="#+id/item1_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:adjustViewBounds="true"
android:src="#drawable/item1_icon" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:weightSum="3" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="2" >
</LinearLayout>
<TextView
android:id="#+id/item1_title"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:ellipsize="end"
android:gravity="center"
android:maxLength="10"
android:singleLine="true"
android:text="My Day"
android:textColor="#android:color/white"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>
How can I do that?

Note that the layout_weight attribute is assigned to the RelativeLayout:
<RelativeLayout
android:id="#+id/item1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:layout_weight="1" >
It won't work this way. Only a LinearLayout can have a layout_weight attribute. For RelativeLayout it is ignored.

I guess that you forgot to add this namespace to root view of your layout:
xmlns:android="http://schemas.android.com/apk/res/android"
And also I guess your problem will be solved if add it to your code.I added that to your code and try it.It was true.This is it's all:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/item1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:layout_weight="1" >
<ImageView
android:id="#+id/item1_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:adjustViewBounds="true"
android:src="#drawable/ic_launcher" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:weightSum="3"
>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="2"
android:background="#android:color/white" >
</LinearLayout>
<TextView
android:id="#+id/item1_title"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:ellipsize="end"
android:gravity="center"
android:maxLength="10"
android:singleLine="true"
android:text="My Day"
android:textColor="#android:color/white"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>

This should work
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/item1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5dp">
<ImageView
android:id="#+id/item1_icon"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:src="#drawable/ic_launcher" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="2"
android:background="#android:color/white" >
</LinearLayout>
<TextView
android:id="#+id/item1_title"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:ellipsize="end"
android:gravity="center"
android:maxLength="10"
android:singleLine="true"
android:text="My Day"
android:textColor="#android:color/white"
android:textStyle="bold" />
</LinearLayout>
</LinearLayout>

Android: how to align views vertically and horizontally

I'm wondering how I can align the buttons as the following: Button1 and Button2-2 are supposed to align horizontally, Button2-1 and Button2-2 should align vertically.
[Button2-1]
[other views] [Button1] [Button2-2]
Here is my code but it doesn't work:
<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/ButtonGroups"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal" >
<Button
android:id="#+id/Button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical" >
<Button
android:id="#+id/Button2-1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" />
<Button
android:id="#+id/Button2-2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
EDITED:
To be more clear, I posted more code here and hopefully it could explain my needs better:
What I want is to align the text view horizontally with the image buttons while vertically with the seekbar above it.
<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/ButtonGroups"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal" >
<ImageButton
android:id="#+id/Button00"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/background00"
android:gravity="bottom"
android:scaleType="center"
android:src="#drawable/button00" />
<ImageButton android:id="#+id/Button11"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/button11"
android:scaleType="center"
android:gravity="bottom"
android:background="#drawable/background11"
/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="bottom"
android:orientation="vertical" >
<SeekBar
android:id="#+id/SeekBar1"
style="#style/MySeekBar1"
android:layout_width="60dp"
android:layout_height="35dp"
android:layout_marginBottom="20dp"
/>
<TextView
android:id="#+id/MyText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="bottom"
android:background="#drawable/MyTextImg"
/>
</LinearLayout>
</LinearLayout>
</LinearLayout>

Use RelativeLayout. Stacking LinearLayouts is usually not the way to go!
https://developer.android.com/reference/android/widget/RelativeLayout.html
https://developer.android.com/guide/topics/ui/layout/relative.html

Try changing the gravity attribute of the first button (Button 1) to bottom.

As someone suggested, use a RelativeLayout to design this type of pattern! Here's an example for your situation:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/ButtonGroups"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="#+id/Button2-2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/Button1"
android:layout_alignBottom="#+id/Button1"
android:layout_toRightOf="#+id/Button1"
android:text="button 2-2" />
<Button
android:id="#+id/Button2-1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/Button2-2"
android:layout_alignLeft="#+id/Button2-2"
android:text="button 2-1" />
<Button
android:id="#+id/Button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="54dp"
android:text="button 1" />
</RelativeLayout>
I hope this get you started!

Try the code below:
<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:stretchColumns="*">
<TableRow >
<TextView />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button2-1" />
</TableRow>
<TableRow >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button1" />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button2-2" />
</TableRow>
</TableLayout>
The trick is to use a blank text view for the empty space in the first row. Let me know if this helps you. :)

how to align text vertically center in android

I have arabic text, therefore I set gravity to right in order to start text from right side. Text starts from right now. But another issue is text starts to render from the top of the page. But I need to vertically center the text.
Although I tried several variations I couldnt make it vertically center.
Here is the sample of my xml file.
<LinearLayout
android:id="#+id/linearLayout5"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="right"
android:orientation="vertical" >
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginBottom="23dp"
android:gravity="right"
android:padding="#dimen/padding_maintextview"
android:text="#string/text"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="20sp" />
</LinearLayout>
Problem is with above textview.
Here I have put whole xml file.
<?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="wrap_content"
android:background="#drawable/page1background"
android:paddingRight="#dimen/padding_large" >
<TextView
android:id="#+id/textView1"
android:layout_width="196dp"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:gravity="center_horizontal"
android:paddingTop="#dimen/padding_Title_Top"
android:text="#string/text"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="20sp" />
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/textView1"
android:gravity="center_horizontal"
android:orientation="vertical" >
<View
android:id="#+id/view1"
android:layout_width="fill_parent"
android:layout_height="5dp" />
</LinearLayout>
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="#id/linearLayout2"
android:layout_below="#id/linearLayout1"
android:layout_gravity="center"
android:padding="#dimen/padding_maintextview" >
<LinearLayout
android:id="#+id/linearLayout5"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="right"
android:orientation="vertical" >
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginBottom="23dp"
android:gravity="right"
android:padding="#dimen/padding_maintextview"
android:text="#string/text"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="20sp" />
</LinearLayout>
</ScrollView>
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" >
<View
android:id="#+id/view2"
android:layout_width="fill_parent"
android:layout_height="100dp" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" >
<ImageButton
android:id="#+id/back_arrow"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_marginBottom="30dp"
android:layout_marginRight="45dp"
android:layout_weight=".5"
android:background="#drawable/backbut"
android:contentDescription="#string/Description"
android:onClick="onClickBtn"
android:src="#drawable/backarrowpress" />
<ImageButton
android:id="#+id/copyButton"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_marginLeft="45dp"
android:layout_weight=".5"
android:background="#drawable/copy"
android:contentDescription="#string/Description"
android:onClick="onClickBtn" />
</LinearLayout>
</RelativeLayout>
Can anybody show me where I have done the mistake? I think problem is clear. If not tell me in comments.
Herewith I have appended updated code after review your answers.
<?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="wrap_content"
android:background="#drawable/page1background"
android:paddingRight="#dimen/padding_large" >
<TextView
android:id="#+id/textView1"
android:layout_width="196dp"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:gravity="center_horizontal"
android:paddingTop="#dimen/padding_Title_Top"
android:text="#string/text"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="20sp" />
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/textView1"
android:gravity="center_horizontal"
android:orientation="vertical" >
<View
android:id="#+id/view1"
android:layout_width="fill_parent"
android:layout_height="5dp" />
</LinearLayout>
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#id/linearLayout2"
android:layout_below="#id/linearLayout1"
android:layout_gravity="center"
android:layout_centerInParent="true"
android:padding="#dimen/padding_maintextview" >
<LinearLayout
android:id="#+id/linearLayout5"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="right"
android:orientation="vertical" >
<TextView
android:id="#+id/textView2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center_vertical"
android:layout_marginBottom="23dp"
android:gravity="center_vertical|right"
android:padding="#dimen/padding_maintextview"
android:text="#string/text"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="20sp" />
</LinearLayout>
</ScrollView>
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" >
<View
android:id="#+id/view2"
android:layout_width="fill_parent"
android:layout_height="100dp" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" >
<ImageButton
android:id="#+id/back_arrow"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_marginBottom="30dp"
android:layout_marginRight="45dp"
android:layout_weight=".5"
android:background="#drawable/backbut"
android:contentDescription="#string/Description"
android:onClick="onClickBtn"
android:src="#drawable/backarrowpress" />
<ImageButton
android:id="#+id/copyButton"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_marginLeft="45dp"
android:layout_weight=".5"
android:background="#drawable/copy"
android:contentDescription="#string/Description"
android:onClick="onClickBtn" />
</LinearLayout>
</RelativeLayout>
But I am in same situation. No text is vertically centered

Your TextView Attributes need to be something like,
<TextView ...
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical|right" ../>
Now, Description why these need to be done,
android:layout_width="match_parent"
android:layout_height="match_parent"
Makes your TextView to match_parent or fill_parent if You don't want to be it like, match_parent you have to give some specified values to layout_height so it get space for vertical center gravity. android:layout_width="match_parent" necessary because it align your TextView in Right side so you can recognize respect to Parent Layout of TextView.
Now, its about android:gravity which makes the content of Your TextView alignment. android:layout_gravity makes alignment of TextView respected to its Parent Layout.
Update:
As below comment says use fill_parent instead of match_parent. (Problem in some device.)

The problem is the padding of the font on the textview. Just add to your textview:
android:includeFontPadding="false"

just use like this to make anything to center
android:layout_gravity="center"
android:gravity="center"
updated :
android:layout_gravity="center|right"
android:gravity="center|right"
Updated : Just remove MarginBottom from your textview.. Do like this.. for your textView
<LinearLayout
android:id="#+id/linearLayout5"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center" >
<TextView
android:id="#+id/textView2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center|right"
android:text="hello"
android:textSize="20dp" />
</LinearLayout>

Try to put android:gravity="center_vertical|right" inside parent LinearLayout else as you are inside RelativeLayout you can put android:layout_centerInParent="true" inside your scrollView.

In relative layout you need specify textview height:
android:layout_height="100dp"
Or specify lines attribute:
android:lines="3"

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Android linear layout align center and right - android

android:gravity="right|center_vertical" aligns your TextView to the right. How about center_horizontal? And your LinearLayouts have the same ID, if there is not more code, then I would delete one of them.

you have used android:gravity="right|center_vertical" in your textview. Use android:gravity="center".

define layout weight for TextView and LinearLayout set android:layout_weight="1" to TextView set android:layout_weight="0" to LinearLayout and also change the layout_width="wrap_content" to LinearLayout and set layout_gravity="center" to TextView

The solution for this is- android:gravity="center_vertical" Normally you'll also have to take care of its parent's position too to make sure it works.

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