title: How can restrict my EditText input to some special character like backslash(/),tild(~) etc by soft keyboard in android programmatically
body: <p>I am developing an application for keyboard, but i am geting an issue.
  I want to restrict/block some special character from soft keyboard in EditText in android programmatically.</p>
  
  <p>So, Is there any way i can restrict any special character input in edit text in android.</p>
  
  <p>If anyone have idea,Please reply.</p>
  
  <p>Thanks in advance.</p>