Develop Reference

how to set border button with 2 colors

i'm trying to create a border for a Button with two color white and black. So I decide to create a shape. i trying to add gradient with white and black color my code doesn't work
i want border like this :
my xml :
<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape android:shape="rectangle" >
<gradient
android:angle="360"
android:centerColor="#000000"
android:endColor="#bfbfbf"
android:gradientRadius="360"
android:startColor="#ffffff"
android:type="sweep" />
<stroke
android:width="2dp"
android:color="#ffffff" />
</shape>
</item>
<item
android:bottom="4dp"
android:left="4dp"
android:right="4dp"
android:top="4dp">
<shape android:shape="rectangle" >
<solid android:color="#d2d2d2" />
</shape>
</item>
</layer-list>
and buttn :
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="OK"
android:background="#drawable/border"
android:layout_alignBottom="#+id/progress"
android:layout_centerHorizontal="true"
android:id="#+id/okbtn" />

button_background.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<stroke
android:width="#dimen/stroke_width_outer"
android:color="#000" />
</shape>
</item>
<item
android:bottom="#dimen/stroke_width_outer"
android:right="#dimen/stroke_width_outer">
<shape android:shape="rectangle">
<stroke
android:width="#dimen/stroke_width_outer"
android:color="#FFF" />
</shape>
</item>
<item
android:bottom="#dimen/stroke_width_outer"
android:left="#dimen/stroke_width_outer"
android:right="#dimen/stroke_width_outer"
android:top="#dimen/stroke_width_outer">
<shape android:shape="rectangle">
<stroke
android:width="#dimen/stroke_width_outer"
android:color="#7F7F7F" />
</shape>
</item>
<item
android:bottom="#dimen/stroke_width_inner"
android:left="#dimen/stroke_width_outer"
android:right="#dimen/stroke_width_inner"
android:top="#dimen/stroke_width_outer">
<shape android:shape="rectangle">
<stroke
android:width="#dimen/stroke_width_outer"
android:color="#DFDFDF" />
</shape>
</item>
<item
android:bottom="#dimen/stroke_width_inner"
android:left="#dimen/stroke_width_inner"
android:right="#dimen/stroke_width_inner"
android:top="#dimen/stroke_width_inner">
<shape android:shape="rectangle">
<solid android:color="#BFBFBF" />
</shape>
</item>
</layer-list>
values/dimen.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<dimen name="stroke_width_outer">3dp</dimen>
<dimen name="stroke_width_inner">6dp</dimen>
</resources>
stroke_width_inner should be twice of stroke_width_outer always
Apply background to button -
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/button_background"
android:text="OK"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
On Layout Editor -
On Device -
On Device you won't see the grayish left and top border as you see on Layout Editor

This appears to be a good place to use a 9-patch image. Any solution based on a regular .png file, a <shape>, or a <vector> will wind up scaling the white and black borders of your button.
Once you've created your button.9.png file, then you can set it to be your button's background using android:background="#drawable/button".
Edit
Here's a 9-patch based on your linked .png file:

Please look here about creating a shape drawable http://developer.android.com/guide/topics/resources/drawable-resource.html#Shape
Once you have done this, in the XML for your button set android:background="#drawable/your_button_border"

Android: Drawable vertically alignment for SeekBar

This is waht I need to achieve with xml drawable for SeekBar:
I tried many different variations and this is best I could make.
This is seekbar_thumb_drawable.xml:
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval" >
<solid android:color="#color/accent_color"/>
<size
android:height="20dp"
android:width="20dp" />
</shape>
This is seekbar_drawable.xml:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="#android:id/background"
android:height="5dp"
android:top="7.5dp">
<shape
android:shape="rectangle">
<solid android:color="#color/seekbar_background" />
<corners android:radius="2.5dp" />
</shape>
</item>
<item
android:id="#android:id/progress"
android:height="10dp"
android:top="5dp">
<clip>
<shape
android:shape="rectangle">
<solid android:color="#color/seekbar_progress" />
<corners android:radius="5dp" />
</shape>
</clip>
</item>
</layer-list>
Result on API 18:
Problem is that lines are not verticaly centered.
Result on API 24:
This display exactly how I want it to display.
Is there any possible solution to make this appear as on first picture on all devices from API 16?
I do not want to use nine-patch, because I need to use color from resources.
I tried padding, gravity, top, bottom, inter-shape, line, rectangle but I could not find solution...

This is because the android:height and android:width for <item> are only available for API 23 and above. If you use these attributes for API below 23, it will not give you an error, but simply ignore it.
In your case, android:height="5dp", and android:height="10dp" are not being applied.
If you look at the relevant docs or , it says that these were added in API level 23.

Make update in your drawable files.
In seekbar_thumb_drawable.xml :
<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:gravity="center">
<shape android:shape="oval">
<solid android:color="#color/accent_color" />
<size
android:width="20dp"
android:height="20dp" />
</shape>
</item>
</layer-list>
seekbar_drawable.xml:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="#android:id/background"
android:height="5dp"
android:gravity="center">
<shape android:shape="rectangle">
<solid android:color="#color/seekbar_background" />
<corners android:radius="2.5dp" />
</shape>
</item>
<item
android:id="#android:id/progress"
android:height="10dp"
android:gravity="center">
<clip>
<shape android:shape="rectangle">
<solid android:color="#color/seekbar_progress" />
<corners android:radius="5dp" />
</shape>
</clip>
</item>
</layer-list>
I m using gravity in item, So that drawable item draw in center.

You probably faced with already known issue, here is the solution for it. You should define maxHeight and minHeight of the SeekBar the same as the height of it. Or you can even set maxHeight to some big value like 1000dp, if you exepect your height to be wrap_content, like mentioned below the suggested answer in the same thread.
<SeekBar
android:thumb="#drawable/seekbar_thumb_drawable"
android:progressDrawable="#drawable/seekbar_drawable"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:maxHeight="1000dp"
<!-- OR -->
android:maxHeight="16dp"
android:minHeight="16dp"/>

<SeekBar
android:id="#+id/seek_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:maxHeight="3dp"
android:minHeight="3dp"
android:progressDrawable="#drawable/nnl_bg_seek_bar_progress"
android:splitTrack="false"
android:thumb="#drawable/nnl_sel_seek_bar_thumb"
tools:ignore="UnusedAttribute"
/>
The code above is my way. You may need to pay attention to these attributes: maxHeight / minHeight / splitTrack.

I am also facing same issue in Low API of thumb drawable come above the line So what I did for it.
<SeekBar
android:id="#+id/seekbar_transparency"
android:layout_width="match_parent"
android:layout_height="40dp"
android:paddingTop="#dimen/seekbar_thumb_size_space"
android:paddingBottom="#dimen/seekbar_thumb_size_space"
android:progress="100"
android:theme="#style/SeekbarTheme"
android:thumb="#drawable/thumb_drawable" />
style.xml
<!--Seekbar background change-->
<style name="SeekbarTheme" parent="Theme.AppCompat.Light">
<!-- active seekbar progress track color -->
<item name="colorControlActivated">#color/colorSeekBar</item>
<!-- inactive seekbar progress track color -->
<item name="colorControlNormal">#color/colorGray</item>
</style>
thumb_drawable.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:bottom="2.5dp"
android:left="2.5dp"
android:right="2.5dp"
android:top="2.5dp">
<shape android:shape="rectangle">
<size
android:width="#dimen/seekbar_thumb_size"
android:height="#dimen/seekbar_thumb_size" />
<corners android:radius="20dp" />
<solid android:color="#201DE9B6" />
</shape>
</item>
<item
android:bottom="10dp"
android:left="10dp"
android:right="10dp"
android:top="10dp">
<shape android:shape="rectangle">
<size
android:width="#dimen/seekbar_thumb_size"
android:height="#dimen/seekbar_thumb_size" />
<corners android:radius="20dp" />
<solid android:color="#AA1DE9B6" />
</shape>
</item>
</layer-list>
dimes.xml
<!--Seeckbar thumb size-->
<dimen name="seekbar_thumb_size">10dp</dimen>
<dimen name="seekbar_thumb_size_space">5dp</dimen>

How to make drawableshape in Android using xml?

I need to make the below shape using xml.
I have created an oval shape using below xml code.
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- This is the line -->
<item android:height="400dp"><shape
android:shape="oval">
<solid android:color="#000000" />
</shape></item>
</layer-list>
But I am not able to draw a line and circle together. Please help me to make the above shape using xml.

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<solid android:color="#color/comment_background"/>
<stroke android:color="#color/gray" android:width="0.5dp"/>
</shape>
This is Code for Creating Circle shape in android

Finally I have come with a solution after little googling.
Followed steps:-
1.Created a xml file called dot.xml in drawable folder to draw a dot or filled circle.
//Dot.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval" >
<solid android:color="#color/colorTimeline" />
</shape>
2.Inserted below code into layout file.
<View
android:id="#+id/v1"
android:layout_width="1dp"
android:layout_height="50dp"
android:background="#color/colorTimeline"
android:contentDescription="ad"
android:layout_marginStart="10dp"/>
<View
android:id="#+id/v2"
android:layout_width="16dp"
android:layout_height="16dp"
android:background="#drawable/dot"
android:contentDescription="f"
android:layout_marginStart="3dp"
android:layout_below="#id/v1"
android:layout_marginEnd="24dp"/>
<View
android:id="#+id/v3"
android:layout_width="1dp"
android:layout_height="50dp"
android:background="#color/colorTimeline"
android:contentDescription="ad"
android:layout_marginStart="10dp"
android:layout_below="#id/v2"/>
Final Output :-
Output Screenshot

My eyes bleeding, when i see your solution, sorry. I had to create and show you this one. Remember this example works only for known size of view. If you want to use dynamic values create my example drawable programatically.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- VERTICAL LINE -->
<item
android:left="9dp"
android:right="9dp">
<shape
android:shape="rectangle">
<solid
android:color="#FF0000" />
<size
android:width="2dp"
android:height="200dp" />
</shape>
</item>
<!-- OVAL -->
<item
android:top="90dp"
android:bottom="90dp">
<shape
android:shape="oval">
<solid
android:color="#FF0000" />
<size
android:width="20dp"
android:height="20dp" />
</shape>
</item>
</layer-list>
If you need any explanation just let me know.

Android draw circle and wrap around text on Textview

I have a textview containing numbers 1,2,3.... I want to have a circle around the numbers, something along the lines of;
The code for my textview is;
<TextView
android:id="#+id/position"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_weight="0.20"
android:textStyle="bold"
android:layout_gravity="center"
android:layout_margin="5dp"
android:background="#drawable/circlebg"
android:textSize="20dp"/>
and I have a xml background file, which contains;
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<corners android:radius="10dip"/>
<stroke android:color="#ff0000" android:width="2dip"/>
<solid android:color="#android:color/transparent"/>
</shape>
the outcome of this is;
What I want to know is how can I get the result of this to be like shown in the first screenshot. Any help is welcomed.

activity.xml
<Button
android:id="#+id/fragment_pos_inventory_Add"
android:layout_width="25dp"
android:layout_height="25dp"
android:background="#drawable/layer_list" />
layer_list.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_pressed="false">
<shape android:shape="oval">
<solid android:color="#fa09ad" />
</shape>
</item>
<item android:state_pressed="true">
<shape android:shape="oval">
<solid android:color="#ffffff"/>
<padding android:left="2dp"
android:right="2dp"
android:top="2dp"
android:bottom="2dp"/>
</shape>
</item>
</layer-list>

Have you tried ViewBadger or BadgeView? These may help you. You can later make changes on that.

You are on the right track, all you have to do is make the textview's layout_height and layout_width a fixed value e.g 50dp, instead of using "wrap_content". When the textView's layout_height and layout_width are equal, you get a circle.

layer-list drawable not drawn correctly

I am trying to create a simple layer-list drawable for my Android app. When I set the drawable as src of an ImageView it is not drawn correctly:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:top="20dp">
<shape android:shape="oval">
<solid android:color="#color/dark_gray" />
</shape>
</item>
<item android:left="20dp">
<shape android:shape="oval">
<solid android:color="#color/dark_gray" />
</shape>
</item>
</layer-list>
Just two ovals with a little offset to each other. Nothing special (just a test) but it does not work.
It seems that android:left|right|bottom|top is the problem. If I use only of of these commands the drawable is drawn correctly. If two or more are used the ImageView stays empty.
Works:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:top="20dp">
<shape android:shape="oval">
<solid android:color="#color/dark_gray" />
</shape>
</item>
<item>
<shape android:shape="oval">
<solid android:color="#color/dark_gray" />
</shape>
</item>
</layer-list>
Does NOT work (like the first example):
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="..." >
<item android:top="20dp" android:left="20dp">
<shape android:shape="oval">
<solid android:color="#color/dark_gray" />
</shape>
</item>
</layer-list>
What is wrong here?
EDIT: # Rod_Algonquin
I use a quite simple layout to test the drawable:
<?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_gravity="center"
android:background="#aaa" >
<ImageView
android:id="#+id/image_logo"
android:layout_width="100dp"
android:layout_height="100dp"
android:src="#drawable/testDrawable" >
</ImageView>
</LinearLayout>
It seems that the number of android:left|right|bottom|top arguments is not the source of the problem but the concrete value being used.
This drawable works fine and:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:top="2dp">
<shape android:shape="oval">
<solid android:color="#0f0" />
</shape>
</item>
</layer-list>
This one does not draw anything (the ImageView is just transparent):
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:top="1dp">
<shape android:shape="oval">
<solid android:color="#0f0" />
</shape>
</item>
</layer-list>
The only difference here is the value of android:top. 1dp does not work. 2dp works without any problem.
Any idea?

The problem is that you are using the layer-list drawable as an image resource of the ImageView. android:src will only accept an image not a drawable thus giving you nothing in there.
solution:
Instead of putting it in the android:src put it in the background where you can freely use the drawable.
<ImageView
android:id="#+id/image_logo"
android:layout_width="100dp"
android:layout_height="100dp"
android:background="#drawable/testDrawable" >
</ImageView>