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I want to add three colors or more vertically on a line separator in android. It is blue as showing in the following picture but what if I want to divide it into three sections and add different colors in it. I do not want to make three separate views for this. Can I do it in android?
<View
android:background="#00bfff"
android:layout_width = "match_parent"
android:layout_height="5dp"
/>
Yes You can do it by Making one drawable file like this. And give Backgroung this drawable to view.
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
android:angle="0"
android:centerColor="#5F3D5E"
android:endColor="#8F76B0"
android:startColor="#35293D"
android:type="linear" />
<corners android:radius="0dp" />
</shape>
You could use a layer-list drawable and use that as your View background.
Example:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<solid android:color="#ff0000"/>
</shape>
</item>
<item
android:bottom="5dp">
<shape>
<solid android:color="#00ff00" />
</shape>
</item>
<item
android:bottom="10dp">
<shape>
<solid android:color="#0000ff" />
</shape>
</item>
</layer-list>
Example output:
Edit:
For vertical lines, you do what #convexHull said, just replace bottom with right.
Example:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<solid android:color="#ff0000"/>
</shape>
</item>
<item
android:right="50dp">
<shape>
<solid android:color="#00ff00" />
</shape>
</item>
<item
android:right="100dp">
<shape>
<solid android:color="#0000ff" />
</shape>
</item>
</layer-list>
Example output:
Solution 1
Create 3 view and add one below another
Solution 2
Create one .png background with 3 different color and set background for your view
You need to add a gradient colour to achieve that effect. Just go into drawable directory and add a new .xml resource into it. Then nest the following:
Selector
Item
Shape
Gradient.
Within the gradient tag add startcolor, centercolor, end color, and angle tags. Then set it as your background of the view.. I don't know of any better way to do this but will update when I do
Heres another way if you want more than 3 colors:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="5dp"
android:weightSum="3">
<View
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#color/red"/>
<View
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#color/blue/>
<View
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#color/green"/>
</LinearLayout>
So if you want more colors, just change the weightsum of the linearlayout and add another view.
I create relative layout i want to set background color like half circle on top . i given like display below.please help me .
I have created following xml drawable you can use this:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:left="-150dp"
android:right="-150dp"
android:top="-200dp">
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<solid android:color="#C72C2F" />
</shape>
</item>
</layer-list>
Just copy and paste it in half_circle.xml in DRAWABLE folder.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners
android:bottomLeftRadius="190dp"
android:bottomRightRadius="190dp"
android:topLeftRadius="0dp"
android:topRightRadius="0dp" />
<padding
android:bottom="0dp"
android:left="0dp"
android:right="0dp"
android:top="0dp" />
<stroke
android:width="0dp" />
<gradient
android:startColor="#2196f3"
android:endColor= "#2196f3"
android:angle="90" />
</shape>
Use like this
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="100">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="48"
android:background="#drawable/half_filled_circle">
</RelativeLayout>
</LinearLayout>
You could create a 9-patch image and set it to the background. The patch (the part that is stretchable) would be set to just below the end of the half circle.
You can use Path specifying paint.setStyle(FILL) then in your view's onDraw(Canvas c) you can draw a path using canvas.drawPath(path,paint).
or
You can define a LayerList Drawable containing two Shape Drawable in the following order
Create a Rectangle
Create an oval
You are done now set this Layer list drawable to any view or layout as background.
or
You can have a nine patch image.
I would like to create a border around my RableRow.
I am using the following shape as background.
bg_stroke_dotted_right
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:top="-4dp"
android:left="-2dp"
android:bottom="-4dp"
android:drawable="#drawable/stroke_dotted">
</item>
</layer-list>
stroked_dotted drawable
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<solid android:color="#000000" />
<stroke
android:dashGap="4dp"
android:dashWidth="2dp"
android:width="2dp"
android:color="#color/greyDark" />
</shape>
I do not understand why using "bg_stroke_dotted_right" as bg - files the background with black color.
As soon as I add "bg_stroke_dotted_right" as bg - the bg turns to black.
<TableRow
android:id="#+id/tableRow2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/bg_stroke_dotted_right"
>
in the shape try this :
<solid android:color="#00000000" />
in this case the first 2 "00" are the alpha of the colors, and "00" meand transparent.
enjoy!
The accepted answer suggests to use transparent in the solid element. Where as this is the reason for the bug (missing the solid element falls back to black on android <4.2) the solution is not the most optimal.
For starters instead of hard code the colour you can use #android:color/transparent however it's potentially best to use #null so that it doesn't overdraw. Something like this:
<solid android:color="#null" />
I have a TextView and I'd like to add a black border along its top and bottom borders. I tried adding android:drawableTop and android:drawableBottom to the TextView, but that only caused the entire view to become black.
<TextView
android:background="#android:color/green"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:drawableTop="#android:color/black"
android:drawableBottom="#android:color/black"
android:text="la la la" />
Is there a way to easily add a top and bottom border to a View (in particular, a TextView) in Android?
In android 2.2 you could do the following.
Create an xml drawable such as /res/drawable/textlines.xml and assign this as a TextView's background property.
<TextView
android:text="My text with lines above and below"
android:background="#drawable/textlines"
/>
/res/drawable/textlines.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="1dp" android:color="#FF000000" />
<solid android:color="#FFDDDDDD" />
</shape>
</item>
<item android:top="1dp" android:bottom="1dp">
<shape
android:shape="rectangle">
<stroke android:width="1dp" android:color="#FFDDDDDD" />
<solid android:color="#00000000" />
</shape>
</item>
</layer-list>
The down side to this is that you have to specify an opaque background colour, as transparencies won't work. (At least i thought they did but i was mistaken). In the above example you can see that the solid colour of the first shape #FFdddddd is copied in the 2nd shapes stroke colour.
I've used a trick so that the border is displayed outside the container. With this trick only a line is drawn so the background will be shown of the underlying view.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:bottom="1dp"
android:left="-2dp"
android:right="-2dp"
android:top="-2dp">
<shape android:shape="rectangle" >
<stroke
android:width="1dp"
android:color="#FF000000" />
<solid android:color="#00FFFFFF" />
<padding android:left="10dp"
android:right="10dp"
android:top="10dp"
android:bottom="10dp" />
</shape>
</item>
</layer-list>
To add a 1dp white border at the bottom only and to have a transparent background you can use the following which is simpler than most answers here.
For the TextView or other view add:
android:background="#drawable/borderbottom"
And in the drawable directory add the following XML, called borderbottom.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:top="-2dp" android:left="-2dp" android:right="-2dp">
<shape android:shape="rectangle">
<stroke android:width="1dp" android:color="#ffffffff" />
<solid android:color="#00000000" />
</shape>
</item>
</layer-list>
If you want a border at the top, change the android:top="-2dp" to android:bottom="-2dp"
The colour does not need to be white and the background does not need to be transparent either.
The solid element may not be required. This will depend on your design (thanks V. Kalyuzhnyu).
Basically, this XML will create a border using the rectangle shape, but then pushes the top, right and left sides beyond the render area for the shape. This leaves just the bottom border visible.
Option 1: Shape Drawable
This is the simplest option if you want a border around a layout or view in which you can set the background. Create an XML file in the drawable folder that looks something like this:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<solid android:color="#8fff93" />
<stroke
android:width="1px"
android:color="#000" />
</shape>
You can remove the solid if you don't want a fill. The set background="#drawable/your_shape_drawable" on your layout/view.
Option 2: Background View
Here's a little trick I've used in a RelativeLayout. Basically you have a black square under the view you want to give a border, and then give that view some padding (not margin!) so the black square shows through at the edges.
Obviously this only works properly if the view doesn't have any transparent areas. If it does I would recommend you write a custom BorderView which only draws the border - it should only be a few dozen lines of code.
<View
android:id="#+id/border"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/image"
android:layout_alignLeft="#+id/image"
android:layout_alignRight="#+id/image"
android:layout_alignTop="#+id/main_image"
android:background="#000" />
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_...
android:padding="1px"
android:src="#drawable/..." />
If you're wondering, it does work with adjustViewBounds=true. However, it doesn't work if you want to have a background in an entire RelativeLayout, because there is a bug that stops you filling a RelativeLayout with a View. In that case I'd recommend the Shape drawable.
Option 3: 9-patch
A final option is to use a 9-patch drawable like this one:
You can use it on any view where you can set android:background="#drawable/...". And yes it does need to be 6x6 - I tried 5x5 and it didn't work.
The disadvantage of this method is you can't change the colours very easily, but if you want fancy borders (e.g. only a border at the top and bottom, as in this question) then you may not be able to do them with the Shape drawable, which isn't very powerful.
Option 4: Extra views
I forgot to mention this really simple option if you only want borders above and below your view. You can put your view in a vertical LinearLayout (if it isn't already) and then add empty Views above and below it like this:
<View android:background="#000" android:layout_width="match_parent" android:layout_height="1px"/>
The currently accepted answer doesn't work. It creates thin vertical borders on the left and right sides of the view as a result of anti-aliasing.
This version works perfectly. It also allows you to set the border widths independently, and you can also add borders on the left / right sides if you want. The only drawback is that it does NOT support transparency.
Create an xml drawable named /res/drawable/top_bottom_borders.xml with the code below and assign it as a TextView's background property.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="#DDDD00" /> <!-- border color -->
</shape>
</item>
<item
android:bottom="1dp"
android:top="1dp"> <!-- adjust borders width here -->
<shape android:shape="rectangle">
<solid android:color="#FFFFFF" /> <!-- background color -->
</shape>
</item>
</layer-list>
Tested on Android KitKat through Marshmallow
So I wanted to do something slightly different: a border on the bottom ONLY, to simulate a ListView divider. I modified Piet Delport's answer and got this:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape
android:shape="rectangle">
<solid android:color="#color/background_trans_light" />
</shape>
</item>
<!-- this mess is what we have to do to get a bottom border only. -->
<item android:top="-2dp"
android:left="-2dp"
android:right="-2dp"
android:bottom="1px">
<shape
android:shape="rectangle">
<stroke android:width="1dp" android:color="#color/background_trans_mid" />
<solid android:color="#null" />
</shape>
</item>
</layer-list>
Note using px instead of dp to get exactly 1 pixel divider (some phone DPIs will make a 1dp line disappear).
Add file to res/drawable
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:left="-2dp" android:right="-2dp">
<shape android:shape="rectangle">
<stroke
android:width="1dp"
android:color="#000000" />
</shape>
</item>
</layer-list>
Add link on this file to background property
Just as #Nic Hubbard said, there is a very easy way to add a border line.
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="#000000" >
</View>
You can change the height and background color to whatever you want.
You can also wrap the view in a FrameLayout, then set the frame's background color and padding to what you want; however, the textview, by default has a 'transparent' background, so you'd need to change the textview's background color too.
My answers is based on #Emile version but I use transparent color instead of solid.
This example will draw a 2dp bottom border.
<?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="2dp"
android:color="#50C0E9" />
<solid android:color="#android:color/transparent" />
</shape>
</item>
<item android:bottom="2dp" >
<shape android:shape="rectangle" >
<stroke android:width="2dp"
android:color="#color/bgcolor" />
<solid android:color="#android:color/transparent" />
</shape>
</item>
</layer-list>
#color/bgcolor is the color of the background on wich you draw your view with border.
If you want to change the position of the border change the offset with one of:
android:bottom="2dp"
android:top="2dp"
android:right="2dp"
android:left="2dp"
or combine them to have 2 or more borders:
android:bottom="2dp" android:top="2dp"
You can do this by this code snippet -
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!--Minus (-) how much dp you gave in the stroke width from left right-->
<item android:left="-10dp" android:right="-10dp">
<shape
android:shape="rectangle">
<stroke android:width="10dp" android:color="#android:color/holo_red_dark" />
<!--This is the main background -->
<solid android:color="#FFDDDDDD" />
</shape>
</item>
</layer-list>
Preview -
Why not just create a 1dp high view with a background color? Then it can be easily placed where you want.
To change this:
<TextView
android:text="My text"
android:background="#drawable/top_bottom_border"/>
I prefer this approach in "drawable/top_bottom_border.xml":
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<gradient
android:angle="270"
android:startColor="#000"
android:centerColor="#android:color/transparent"
android:centerX="0.01" />
</shape>
</item>
<item>
<shape>
<gradient
android:angle="90"
android:startColor="#000"
android:centerColor="#android:color/transparent"
android:centerX="0.01" />
</shape>
</item>
</layer-list>
This only makes the borders, not a rectangle that will appear if your background has a color.
Simplest way to add borders to inset the borders using InsetDrawable,following will show top border only :
<?xml version="1.0" encoding="utf-8"?>
<inset xmlns:android="http://schemas.android.com/apk/res/android"
android:insetBottom="-2dp"
android:insetLeft="-2dp"
android:insetRight="-2dp">
<shape android:shape="rectangle">
<solid android:color="#color/light_gray" />
<stroke
android:width=".5dp"
android:color="#color/dark_gray" />
</shape>
</inset>
Just to add my solution to the list..
I wanted a semi transparent bottom border that extends past the original shape (So the semi-transparent border was outside the parent rectangle).
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape android:shape="rectangle" >
<solid android:color="#33000000" /> <!-- Border colour -->
</shape>
</item>
<item android:bottom="2dp" >
<shape android:shape="rectangle" >
<solid android:color="#164586" />
</shape>
</item>
</layer-list>
Which gives me;
First make a xml file with contents shown below and name it border.xml and place it inside the layout folder inside the res directory
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<stroke android:width="1dp" android:color="#0000" />
<padding android:left="0dp" android:top="1dp" android:right="0dp"
android:bottom="1dp" />
</shape>
After that inside the code use
TextView tv = (TextView)findElementById(R.id.yourTextView);
tv.setBackgroundResource(R.layout.border);
This will make a black line on top and bottom of the TextView.
Simply add Views at the top and bottom of the View
<?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:layout_width="match_parent"
android:layout_height="match_parent">
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#color/your_color"
app:layout_constraintBottom_toTopOf="#+id/textView"
app:layout_constraintEnd_toEndOf="#+id/textView"
app:layout_constraintStart_toStartOf="#+id/textView" />
<TextView
android:id="#+id/textView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="32dp"
android:gravity="center"
android:text="Testing"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#color/your_color"
app:layout_constraintEnd_toEndOf="#+id/textView"
app:layout_constraintStart_toStartOf="#+id/textView"
app:layout_constraintTop_toBottomOf="#+id/textView" />
</android.support.constraint.ConstraintLayout>
Write down below code
<View
android:layout_width="wrap_content"
android:layout_height="2dip"
android:layout_below="#+id/topics_text"
android:layout_marginTop="7dp"
android:layout_margin="10dp"
android:background="#ffffff" />
Try wrapping the image with a linearlayout, and set it's background to the border color you want around the text. Then set the padding on the textview to be the thickness you want for your border.
You can also use a 9-path to do your job. Create it so that colored pixel do not multiply in height but only the transparent pixel.
Based on accepted answer of Pi Delport and Emile, I made it a little simpler
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item> <!--divider TOP and BOTTOM-->
<shape android:shape="rectangle">
<stroke
android:width="1dp"
android:color="#color/divider" />
</shape>
</item>
<!--background surface-->
<item
android:top="1dp"
android:bottom="1dp">
<shape android:shape="rectangle">
<solid android:color="#color/background" />
</shape>
</item>
// Just simply add border around the image view or view
<ImageView
android:id="#+id/imageView2"
android:layout_width="90dp"
android:layout_height="70dp"
android:layout_centerVertical="true"
android:layout_marginRight="10dp"
android:layout_toLeftOf="#+id/imageView1"
android:background="#android:color/white"
android:padding="5dip" />
// After that dynamically put color into your view or image view object
objView.setBackgroundColor(Color.GREEN);
//VinodJ/Abhishek
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#color/light_grey1" />
<stroke
android:width="1dip"
android:color="#color/light_grey1" />
<corners
android:bottomLeftRadius="0dp"
android:bottomRightRadius="0dp"
android:topLeftRadius="5dp"
android:topRightRadius="5dp" />
</shape>
<TextView
android:id="#+id/textView3"
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="#72cdf4"
android:text=" aa" />
Just Add this TextView below the text where you want to add the border
Just to enforce #phreakhead ´s and user1051892 ´s answers, <item android:bottom|android:left|android:right|android:top> if negative, must to be greater than <stroke android:width>. If not, item´s painting will be mixed with stroke´s painting and you may think these values are not working.
I have a TextView and I'd like to add a black border along its top and bottom borders. I tried adding android:drawableTop and android:drawableBottom to the TextView, but that only caused the entire view to become black.
<TextView
android:background="#android:color/green"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:drawableTop="#android:color/black"
android:drawableBottom="#android:color/black"
android:text="la la la" />
Is there a way to easily add a top and bottom border to a View (in particular, a TextView) in Android?
In android 2.2 you could do the following.
Create an xml drawable such as /res/drawable/textlines.xml and assign this as a TextView's background property.
<TextView
android:text="My text with lines above and below"
android:background="#drawable/textlines"
/>
/res/drawable/textlines.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="1dp" android:color="#FF000000" />
<solid android:color="#FFDDDDDD" />
</shape>
</item>
<item android:top="1dp" android:bottom="1dp">
<shape
android:shape="rectangle">
<stroke android:width="1dp" android:color="#FFDDDDDD" />
<solid android:color="#00000000" />
</shape>
</item>
</layer-list>
The down side to this is that you have to specify an opaque background colour, as transparencies won't work. (At least i thought they did but i was mistaken). In the above example you can see that the solid colour of the first shape #FFdddddd is copied in the 2nd shapes stroke colour.
I've used a trick so that the border is displayed outside the container. With this trick only a line is drawn so the background will be shown of the underlying view.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:bottom="1dp"
android:left="-2dp"
android:right="-2dp"
android:top="-2dp">
<shape android:shape="rectangle" >
<stroke
android:width="1dp"
android:color="#FF000000" />
<solid android:color="#00FFFFFF" />
<padding android:left="10dp"
android:right="10dp"
android:top="10dp"
android:bottom="10dp" />
</shape>
</item>
</layer-list>
To add a 1dp white border at the bottom only and to have a transparent background you can use the following which is simpler than most answers here.
For the TextView or other view add:
android:background="#drawable/borderbottom"
And in the drawable directory add the following XML, called borderbottom.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:top="-2dp" android:left="-2dp" android:right="-2dp">
<shape android:shape="rectangle">
<stroke android:width="1dp" android:color="#ffffffff" />
<solid android:color="#00000000" />
</shape>
</item>
</layer-list>
If you want a border at the top, change the android:top="-2dp" to android:bottom="-2dp"
The colour does not need to be white and the background does not need to be transparent either.
The solid element may not be required. This will depend on your design (thanks V. Kalyuzhnyu).
Basically, this XML will create a border using the rectangle shape, but then pushes the top, right and left sides beyond the render area for the shape. This leaves just the bottom border visible.
Option 1: Shape Drawable
This is the simplest option if you want a border around a layout or view in which you can set the background. Create an XML file in the drawable folder that looks something like this:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<solid android:color="#8fff93" />
<stroke
android:width="1px"
android:color="#000" />
</shape>
You can remove the solid if you don't want a fill. The set background="#drawable/your_shape_drawable" on your layout/view.
Option 2: Background View
Here's a little trick I've used in a RelativeLayout. Basically you have a black square under the view you want to give a border, and then give that view some padding (not margin!) so the black square shows through at the edges.
Obviously this only works properly if the view doesn't have any transparent areas. If it does I would recommend you write a custom BorderView which only draws the border - it should only be a few dozen lines of code.
<View
android:id="#+id/border"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/image"
android:layout_alignLeft="#+id/image"
android:layout_alignRight="#+id/image"
android:layout_alignTop="#+id/main_image"
android:background="#000" />
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_...
android:padding="1px"
android:src="#drawable/..." />
If you're wondering, it does work with adjustViewBounds=true. However, it doesn't work if you want to have a background in an entire RelativeLayout, because there is a bug that stops you filling a RelativeLayout with a View. In that case I'd recommend the Shape drawable.
Option 3: 9-patch
A final option is to use a 9-patch drawable like this one:
You can use it on any view where you can set android:background="#drawable/...". And yes it does need to be 6x6 - I tried 5x5 and it didn't work.
The disadvantage of this method is you can't change the colours very easily, but if you want fancy borders (e.g. only a border at the top and bottom, as in this question) then you may not be able to do them with the Shape drawable, which isn't very powerful.
Option 4: Extra views
I forgot to mention this really simple option if you only want borders above and below your view. You can put your view in a vertical LinearLayout (if it isn't already) and then add empty Views above and below it like this:
<View android:background="#000" android:layout_width="match_parent" android:layout_height="1px"/>
The currently accepted answer doesn't work. It creates thin vertical borders on the left and right sides of the view as a result of anti-aliasing.
This version works perfectly. It also allows you to set the border widths independently, and you can also add borders on the left / right sides if you want. The only drawback is that it does NOT support transparency.
Create an xml drawable named /res/drawable/top_bottom_borders.xml with the code below and assign it as a TextView's background property.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="#DDDD00" /> <!-- border color -->
</shape>
</item>
<item
android:bottom="1dp"
android:top="1dp"> <!-- adjust borders width here -->
<shape android:shape="rectangle">
<solid android:color="#FFFFFF" /> <!-- background color -->
</shape>
</item>
</layer-list>
Tested on Android KitKat through Marshmallow
So I wanted to do something slightly different: a border on the bottom ONLY, to simulate a ListView divider. I modified Piet Delport's answer and got this:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape
android:shape="rectangle">
<solid android:color="#color/background_trans_light" />
</shape>
</item>
<!-- this mess is what we have to do to get a bottom border only. -->
<item android:top="-2dp"
android:left="-2dp"
android:right="-2dp"
android:bottom="1px">
<shape
android:shape="rectangle">
<stroke android:width="1dp" android:color="#color/background_trans_mid" />
<solid android:color="#null" />
</shape>
</item>
</layer-list>
Note using px instead of dp to get exactly 1 pixel divider (some phone DPIs will make a 1dp line disappear).
Add file to res/drawable
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:left="-2dp" android:right="-2dp">
<shape android:shape="rectangle">
<stroke
android:width="1dp"
android:color="#000000" />
</shape>
</item>
</layer-list>
Add link on this file to background property
Just as #Nic Hubbard said, there is a very easy way to add a border line.
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="#000000" >
</View>
You can change the height and background color to whatever you want.
You can also wrap the view in a FrameLayout, then set the frame's background color and padding to what you want; however, the textview, by default has a 'transparent' background, so you'd need to change the textview's background color too.
My answers is based on #Emile version but I use transparent color instead of solid.
This example will draw a 2dp bottom border.
<?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="2dp"
android:color="#50C0E9" />
<solid android:color="#android:color/transparent" />
</shape>
</item>
<item android:bottom="2dp" >
<shape android:shape="rectangle" >
<stroke android:width="2dp"
android:color="#color/bgcolor" />
<solid android:color="#android:color/transparent" />
</shape>
</item>
</layer-list>
#color/bgcolor is the color of the background on wich you draw your view with border.
If you want to change the position of the border change the offset with one of:
android:bottom="2dp"
android:top="2dp"
android:right="2dp"
android:left="2dp"
or combine them to have 2 or more borders:
android:bottom="2dp" android:top="2dp"
You can do this by this code snippet -
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!--Minus (-) how much dp you gave in the stroke width from left right-->
<item android:left="-10dp" android:right="-10dp">
<shape
android:shape="rectangle">
<stroke android:width="10dp" android:color="#android:color/holo_red_dark" />
<!--This is the main background -->
<solid android:color="#FFDDDDDD" />
</shape>
</item>
</layer-list>
Preview -
Why not just create a 1dp high view with a background color? Then it can be easily placed where you want.
To change this:
<TextView
android:text="My text"
android:background="#drawable/top_bottom_border"/>
I prefer this approach in "drawable/top_bottom_border.xml":
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<gradient
android:angle="270"
android:startColor="#000"
android:centerColor="#android:color/transparent"
android:centerX="0.01" />
</shape>
</item>
<item>
<shape>
<gradient
android:angle="90"
android:startColor="#000"
android:centerColor="#android:color/transparent"
android:centerX="0.01" />
</shape>
</item>
</layer-list>
This only makes the borders, not a rectangle that will appear if your background has a color.
Simplest way to add borders to inset the borders using InsetDrawable,following will show top border only :
<?xml version="1.0" encoding="utf-8"?>
<inset xmlns:android="http://schemas.android.com/apk/res/android"
android:insetBottom="-2dp"
android:insetLeft="-2dp"
android:insetRight="-2dp">
<shape android:shape="rectangle">
<solid android:color="#color/light_gray" />
<stroke
android:width=".5dp"
android:color="#color/dark_gray" />
</shape>
</inset>
Just to add my solution to the list..
I wanted a semi transparent bottom border that extends past the original shape (So the semi-transparent border was outside the parent rectangle).
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape android:shape="rectangle" >
<solid android:color="#33000000" /> <!-- Border colour -->
</shape>
</item>
<item android:bottom="2dp" >
<shape android:shape="rectangle" >
<solid android:color="#164586" />
</shape>
</item>
</layer-list>
Which gives me;
First make a xml file with contents shown below and name it border.xml and place it inside the layout folder inside the res directory
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<stroke android:width="1dp" android:color="#0000" />
<padding android:left="0dp" android:top="1dp" android:right="0dp"
android:bottom="1dp" />
</shape>
After that inside the code use
TextView tv = (TextView)findElementById(R.id.yourTextView);
tv.setBackgroundResource(R.layout.border);
This will make a black line on top and bottom of the TextView.
Simply add Views at the top and bottom of the View
<?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:layout_width="match_parent"
android:layout_height="match_parent">
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#color/your_color"
app:layout_constraintBottom_toTopOf="#+id/textView"
app:layout_constraintEnd_toEndOf="#+id/textView"
app:layout_constraintStart_toStartOf="#+id/textView" />
<TextView
android:id="#+id/textView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="32dp"
android:gravity="center"
android:text="Testing"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#color/your_color"
app:layout_constraintEnd_toEndOf="#+id/textView"
app:layout_constraintStart_toStartOf="#+id/textView"
app:layout_constraintTop_toBottomOf="#+id/textView" />
</android.support.constraint.ConstraintLayout>
Write down below code
<View
android:layout_width="wrap_content"
android:layout_height="2dip"
android:layout_below="#+id/topics_text"
android:layout_marginTop="7dp"
android:layout_margin="10dp"
android:background="#ffffff" />
Try wrapping the image with a linearlayout, and set it's background to the border color you want around the text. Then set the padding on the textview to be the thickness you want for your border.
You can also use a 9-path to do your job. Create it so that colored pixel do not multiply in height but only the transparent pixel.
Based on accepted answer of Pi Delport and Emile, I made it a little simpler
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item> <!--divider TOP and BOTTOM-->
<shape android:shape="rectangle">
<stroke
android:width="1dp"
android:color="#color/divider" />
</shape>
</item>
<!--background surface-->
<item
android:top="1dp"
android:bottom="1dp">
<shape android:shape="rectangle">
<solid android:color="#color/background" />
</shape>
</item>
// Just simply add border around the image view or view
<ImageView
android:id="#+id/imageView2"
android:layout_width="90dp"
android:layout_height="70dp"
android:layout_centerVertical="true"
android:layout_marginRight="10dp"
android:layout_toLeftOf="#+id/imageView1"
android:background="#android:color/white"
android:padding="5dip" />
// After that dynamically put color into your view or image view object
objView.setBackgroundColor(Color.GREEN);
//VinodJ/Abhishek
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#color/light_grey1" />
<stroke
android:width="1dip"
android:color="#color/light_grey1" />
<corners
android:bottomLeftRadius="0dp"
android:bottomRightRadius="0dp"
android:topLeftRadius="5dp"
android:topRightRadius="5dp" />
</shape>
<TextView
android:id="#+id/textView3"
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="#72cdf4"
android:text=" aa" />
Just Add this TextView below the text where you want to add the border
Just to enforce #phreakhead ´s and user1051892 ´s answers, <item android:bottom|android:left|android:right|android:top> if negative, must to be greater than <stroke android:width>. If not, item´s painting will be mixed with stroke´s painting and you may think these values are not working.