How to get Custom circle button in android?

This example demonstrates how to get Custom circle button in android.

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Step 2 − Add the following code to res/layout/actiivity_main.xml.

<?xml version = "1.0" encoding = "utf-8"?>
<LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"
   android:id = "@+id/parent"
   xmlns:tools = "http://schemas.android.com/tools"
   android:layout_width = "match_parent"
   android:layout_height = "match_parent"
   tools:context = ".MainActivity"
   android:gravity = "center"
   android:orientation = "vertical">
   <Button
      android:id = "@+id/text"
      android:textSize = "18sp"
      android:textAlignment = "center"
      android:background = "@drawable/round_button"
      android:layout_width = "150dp"
      android:textColor = "#000"
      android:layout_height = "150dp" />
</LinearLayout>

In the above code, we have taken the button with a round_button background. so create round_button.xml in drawable folder and add the following code.

<?xml version = "1.0" encoding = "utf-8"?>
<selector xmlns:android = "http://schemas.android.com/apk/res/android">
   <item android:state_pressed = "false">
      <shape android:shape = "oval">
         <solid android:color = "#ffff00"/>
      </shape>
   </item>
   <item android:state_pressed = "true">
      <shape android:shape = "oval">
         <solid android:color = "#fff000"/>
      </shape>
   </item>
</selector>

In the above code, we have taken two states as pressed on button and release button. when a user clicks on a button it will take the state of the button and provide shape for the button.

Step 3 − Add the following code to src/MainActivity.java

package com.example.andy.myapplication;
import android.content.res.Configuration;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
   int view = R.layout.activity_main;
   Button button;
   @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(view);
      button = findViewById(R.id.text);
      button.setText("Button");
   }
}

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run  icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −

In the above result, it shows the default screen, click on a button, it will change the color of a button as shown below -

Click here to download the project code