Android Rounded Corner Button

In this post we will see how to add rounded corner to Button using drawable

1. Colors

Define color attritube in color.xml  which will be used in drawable below.

file : colors.xml

<resources>
  
  <color name="button_bgcolor">#EEEEEE</color>
  <color name="button_bgcolor_press">#2e89b1</color>
  <color name="button_bgcolor_enable">#3db5ea</color>

</resources>

1. Drawable

Create Drawable add selector and assign color to item for different state ( enable, pressed )

file : rounded_corner.xml

<?xml version="1.0" encoding="UTF-8"?>
<selector 
    xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_enabled="false">
        <shape>
            <corners android:radius="22dp" />
            <solid android:color="@color/button_bgcolor" />
        </shape>
    </item>

    <!-- State Pressed-->
    <item android:state_pressed="true">
        <shape>
            <corners android:radius="22dp" />
            <solid android:color="@color/button_bgcolor_press" />
        </shape>
    </item>

    <!-- State Enabled -->
    <item android:state_enabled="true">
        <shape>
            <corners android:radius="22dp" />
            <solid android:color="@color/button_bgcolor_enable" />
        </shape>
    </item>

</selector>

3. XML Layout

Create XML Layout , add TextView and set the background of Button with above defined drawable .

file : activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<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:background="#fff"
    android:gravity="center"
    android:orientation="vertical"
    android:padding="40dp"
    tools:context=".MainActivity">
    
    <androidx.appcompat.widget.AppCompatButton
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/rounded_corner"
        android:gravity="center"
        android:padding="10dp"
        android:text="Hello World!"
        android:textColor="@color/white"
        android:textSize="22sp" />

</LinearLayout>