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Android rounded corner button tutorial



By default the Button Views in Android are rectangle in shape and you cannot make the Button's have curved edges by adding attributes to it.

To make the Button have rounded corners right click on res->drawable folder and select Other

Drawable folder - new Other


Now Select Android -> Android XML File

Select Android - Android XML File


Now add a File Name and Select shape from Root Element

Select Shape from root element


Add android:shape="rectangle" attribute in <shape> tag. Now add a <corner> tag within the <shape> tag and add attribute android:radius tag with value in dp. You can also set individual corner radius by,

<corners
   android:bottomLeftRadius="10dp"
   android:bottomRightRadius="10dp"
   android:topLeftRadius="10dp"
   android:topRightRadius="10dp" />


Example : button.rounded.xml



<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
   android:shape="rectangle" >

<stroke
   android:drawable="@android:color/transparent"
   android:width="1dp"
   android:color="#CC888888" >
</stroke>

<solid android:color="#FFFFFF" />

<corners
   android:bottomLeftRadius="10dp"
   android:bottomRightRadius="10dp"
   android:topLeftRadius="10dp"
   android:topRightRadius="10dp" />

</shape>




In your Layout.xml where you have created your Button, you need to add an attribute android:background="@drawable/button_rounded".

<Button
   android:id="@+id/button1"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_alignParentTop="true"
   android:layout_centerHorizontal="true"
   android:background="@drawable/button_rounded"
   android:layout_marginTop="154dp"
   android:text="Button" />


Output



Output - rounded cornered button


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