How Add Email and Call Intent in Android Application

Now, i will explain how add email and call intent in Android Application, Usually we used that for Customer Service, Contact Us or Help module in some app, many ways to create this but i go in simple code.

First Step : Create activity_main.xml in code below :

Second Step : Create MainActivity.java and Copy This Code.

Function under btn_call, will show call widget activity in android,and them under btn_email will
show all email application all types of email applications installed.

Third Step : Running Application and will show like this pic :