title: How can I make background music for android project
body: <p>I'm making a small android app like image below:
  <img src="https://i.stack.imgur.com/fx5Qq.png" alt="enter image description here"></p>
  
  <p>I have a sound button. All I want is background music will play across all activity and when I click on sound button, music will stop. Or click to play music again.</p>
  
  <p>I dont know how to make it. PLease help me! or give me link to refer.</p>
  
  <p>I'd gladly appreciate your help it Thanks!</p>