Develop Reference

layout_gravity isn't working as expected - just partially

I have the following layout:
<?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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="start"
android:text="#string/title_day"
android:textStyle="bold"
android:textSize="20sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="start"
android:text="Tuesday"
android:textSize="16sp" />
</LinearLayout>
<TextView
android:id="#+id/tv_fail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="+22"
android:textSize="16sp"
android:layout_gravity="end|center_vertical" />
</LinearLayout>
</LinearLayout>
And this looks like this:
And I want the last TextView with id tv_fail to be pinned to right end of screen. I suppose that
android:layout_gravity="end|center_vertical"
should handle it, but this instruction centers TextView vertically, but doesn't move it to end. How to fix it?

I suppose that
android:layout_gravity="end|center_vertical"
should handle it, but this instruction centers TextView vertically, but doesn't move it to end.
This is due to how LinearLayout works; your understanding of layout_gravity is generally correct.
LinearLayout takes its children and lays them out in a line, and the children will all be packed towards the "start" of the LinearLayout. In other words, a horizontal LinearLayout will ignore the horizontal component of the layout_gravity attribute of a child.
There are a few ways to work around this. The one that I think works best for your scenario is to make the TextView stretch to fill all the remaining space in the LinearLayout (using layout_weight), and then have the TextView position its text at the end of its content area (using gravity).
<TextView
android:id="#+id/tv_fail"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="+22"
android:textSize="16sp"
android:layout_gravity="center_vertical"
android:gravity="end"/>

If you just want to set text inside of your last TextView to end then you should use :
android:gravity="end"
for TextView gravity use:
android:layout_gravity="center"
Difference between android:gravity & android:layout_gravity is that first one arrange content inside of any view with given gravity while second one arranges view according to given gravity.
Updated code:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="start"
android:text="title_day"
android:textSize="20sp"
android:textStyle="bold" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="start"
android:text="Tuesday"
android:textSize="16sp" />
</LinearLayout>
<TextView
android:id="#+id/tv_fail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="+22"
android:textSize="16sp" />
</LinearLayout>

how to ensure the min space between two views in Relativelayout

I have two TextViews in a RelativeLayout. One to the left and the other one to the right. Both of them shows a string which may become very long. I want to make a min space of 10dp between two TextViews and let the right one have ellipse if no enough space.
I have below layout definition which does not work. The right TextView may cover the first one if it is very lone.
<RelativeLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerVertical="true"
android:layout_marginLeft="3dp">
<TextView
android:id="#+id/left_one"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="7dp"
android:gravity="bottom"
android:text=""/>
<TextView
android:id="#+id/right_one"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="8dp"
android:layout_alignParentRight="true"
android:layout_marginRight="10dp"
android:gravity="center"
android:maxLines="1"
android:ellipsize="end"
/>
</RelativeLayout>
The only way I can do is to set the max length to the right one. But this is not what I want because if the left one is short, i want the right one to be longer than the maxWidth.
And when I added "toRightOf" this work but the textView width becomes too long for a short string shown in it. That is not acceptable

add Add android:layout_toRightOf="#+id/left_one in right_one textview
remove android:layout_alignParentRight="true" from right_one textview
replace android:layout_marginRight="10dp" by android:layout_marginLeft="10dp" in right_one textview
For right_one textview to remain right if it is short replace right_one textview portion by
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginLeft="10dp"
android:layout_alignParentBottom="true"
android:layout_toRightOf="#+id/left_one>
<TextView
android:id="#+id/right_one"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:gravity="center"
android:maxLines="1"
android:ellipsize="end"
/>
</RelativeLayout>

You can do like this.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="1">
<TextView
android:id="#+id/left_one"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="7dp"
android:gravity="bottom"
android:layout_weight="0.3"
android:text="Left text "/>
<TextView
android:id="#+id/right_one"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:gravity="center"
android:maxLines="1"
android:ellipsize="end"
android:layout_weight="0.7"
android:layout_marginLeft="10dp"
android:text="edkjfcnrdskjvkjrdfvsxsdcndsjkvnjksdnvkj
sdjkvbksdbvkj zskjvn jsdnbjkvfdbde"/>
</LinearLayout>

Add:
android:layout_toLeftOf="#+id/right_one"
android:layout_marginRight="10dp"
to your left_one TextView.

How to set text in center of text view

I am making the list view in which I have a image view and to its left I have to align the TextView which should have text in the center of it not the bottom of it. I have set the gravity but its only looking good in the design but when I run my app and data is fetched in list view then the text gets set in the bottom .
I will show you what I mean by this.But first let me show you how I am doing to align this
<RelativeLayout
android:id="#+id/block_address"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:orientation="horizontal">
<ImageView
android:id="#+id/iv_address"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/pin" />
<TextView
android:id="#+id/row_address"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignBaseline="#+id/iv_address"
android:layout_alignBottom="#+id/iv_address"
android:layout_marginLeft="3dp"
android:layout_toRightOf="#+id/iv_address"
android:gravity="center|center_vertical"
android:text="Address Goes here"
android:textColor="#AAAAAA" />
</RelativeLayout>
and this is how I am getting this
And this is what I want it to be
as you can see in the second picture I want this type of adjustment. and in design preview it is showing me design just like it is expected. But When I run the app it just showing me text like i showed you in picture one.
Please tell me what i am doing wrong and How to constrict this not to get out of allignment.

Replace whole code with :
<TextView
android:id="#+id/row_address"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:android:drawableLeft="#drawable/pin"
android:drawablePadding="10dp"
android:gravity="center|center_vertical"
android:text="Address Goes here"
android:textColor="#AAAAAA" />

You can add a drawable icon
<TextView
android:drawableLeft="#drawable/..."/>

Replace your TextView with this:
<TextView
android:id="#+id/row_address"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignTop="#+id/iv_address"
android:layout_alignBottom="#+id/iv_address"
android:layout_marginLeft="3dp"
android:layout_toRightOf="#+id/iv_address"
android:gravity="center|center_vertical"
android:text="Address Goes here"
android:textColor="#AAAAAA" />

Use LinearLayout Instead of RelativeLayout as acheiveing something like this is pretty easy in LinearLayout
<LinearLayout android:layout_width="match_parent"
android:layout_height="150dp"
android:orientation="horizontal">
<ImageView
android:id="#+id/iv_address"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="3"
android:src="#drawable/andro"/>
<TextView
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="7"
android:text="Hello World"
android:gravity="center"/>
</LinearLayout>

Try LinearLayout instead of RelativeLayout. because its easy to align.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:id="#+id/block_address"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:orientation="horizontal"
xmlns:android="http://schemas.android.com/apk/res/android">
<ImageView
android:id="#+id/iv_address"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/logout" />
<TextView
android:id="#+id/row_address"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="3dp"
android:gravity="center|center_vertical"
android:text="Address Goes here"
android:textColor="#AAAAAA" />
</LinearLayout>

Aligning two textviews in a listview

Here's what I have:
There are options and there are content to every option. Option numbers (A, B, C, D) are in a separate textview and their contents are in a separate textview.
All I'm trying is aligning the option number with the first line of the option content. I tried setting the constant paddingTop, but as the number of lines in the option-content changes, it goes out of alignment. Any suggestions upon how to do it?
Here's part of the xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/options"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="8dp">
<TextView
android:id="#+id/option_number"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="10"
android:text="A"
android:paddingLeft="5dp"
android:textSize="17sp"
android:textStyle="bold"
android:textColor="#color/charcoal"/>
<TextView
android:id="#+id/option_content"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="100"
android:textSize="17sp"
android:gravity="center|left"
android:paddingRight="20dp"
android:text="option content...."
android:textColor="#color/charcoal"/>
Can I do it by getting the paddingTop of option content dynamically and setting the same padding to the option number?

Try with below.
Replace this in your xml.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/options"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:weightSum="5">
<TextView
android:id="#+id/option_number"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingLeft="5dp"
android:text="A"
android:maxLines="4"
android:textColor="#color/charcoal"
android:textSize="17sp"
android:textStyle="bold" />
<TextView
android:id="#+id/option_content"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="4"
android:maxLines="4"
android:text="option content...."
android:textColor="#color/charcoal"
android:textSize="17sp" />
</LinearLayout>
And It's Done.
Surely it will help you.

Set android:gravity="top" for option_number TextView android:gravity="top|left" for option_content. Or, User a Relative Layout and use layout_aligntop

Try setting android:layout_alignBaseline="#id/option_number" on option_content

You can use Relative layout instead of linear layout, but you wll have to change your xml a bit. So if you decide to use it you can just set the next property to first TextView
android:layout_alignTop="#+id/option_content"
It should help you.

use: android:layout_centerVertical="true".
Suggestion, can use the following three in combination to easily achieve what you want:
1) CenterVertical
2) ToRightOf
3) RelativeLayout.
e.g:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/options"
android:layout_width="match_parent"
android:layout_height="80dp">
<TextView
android:layout_centerVertical="true"
android:id="#+id/option_number"
android:layout_width="30dp"
android:layout_height="wrap_content"
android:text="A"
android:paddingLeft="5dp"
android:textSize="17sp"
android:textStyle="bold"
android:textColor="#color/charcoal"/>
<TextView
android:layout_toRightOf="#id/option_number"
android:layout_centerVertical="true"
android:id="#+id/option_content"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="17sp"
android:text="option content...."
android:textColor="#color/charcoal"/>

How to get Side by Side textviews with one that wraps

I have a listview with a custom adapter in which I have 3 textviews, two are next to each other and one is below the others. The problem I am running into though, is when the first textview extends, it pushes the other textview off the screen.
I have not been able to successfully get this to work, here is an example of what's happening:
As you can see when the first textview gets too long, it then pushes the other text off the screen. I would like it so it wraps but the date textview is also showing. It should also be functional in horizontal view.
Here's the listview adapter code:
<RelativeLayout android:id="#+id/vw1" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:orientation="horizontal"
android:descendantFocusability="blocksDescendants" xmlns:android="http://schemas.android.com/apk/res/android">
<TextView android:id="#+id/liName" android:textSize="17sp"
android:textColor="#333" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:gravity="left"
android:layout_gravity="left" />
<TextView android:id="#+id/liDate" android:textSize="12sp"
android:textColor="#666" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:gravity="right"
android:layout_gravity="right" android:width="60sp" android:layout_toRightOf="#+id/liName" />
<TextView android:id="#+id/liNum" android:textSize="12sp"
android:textColor="#666" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:layout_below="#+id/liName" />
</RelativeLayout>

I am assuming that the text view being pushed is the liDate one.
You need to put this one before the liName in your layout and set the width to "wrap_content" and align it right. Then you lace the liName to the left of it with "fill_parent" width
So it would look like this:
<RelativeLayout android:id="#+id/vw1" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:orientation="horizontal"
android:descendantFocusability="blocksDescendants" xmlns:android="http://schemas.android.com/apk/res/android">
<TextView android:id="#+id/liDate" android:textSize="12sp"
android:textColor="#666" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:width="60sp"
android:layout_alignParentRight="true" />
<TextView android:id="#+id/liName" android:textSize="17sp"
android:textColor="#333" android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="#id/liDate" />
<TextView android:id="#+id/liNum" android:textSize="12sp"
android:textColor="#666" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:layout_below="#+id/liName" />
Hope this is what you meant

The key was using "#+id/" for the first textview instead of "#id/"
This worked for me:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/listEventTypeText"
android:layout_toLeftOf="#+id/listEventDateText"
android:layout_alignParentLeft="true"
/>
<TextView
android:id="#+id/listEventDateText"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignBaseline="#id/listEventTypeText"
/>
</RelativeLayout>