finish activity in android closing application

Question

i want to register on click register button then after new user is registered it goes back to login screen. for that i am using

@Override
    public void onClick(View v) {
    username = eusername.getText().toString();
    email = eemail.getText().toString();
    mobile = emobile.getText().toString();
    password = epassword.getText().toString();
    registerViews();
    if(Validations.hasNoChars(username) && Validations.isEmail(email) && Validations.isMobileNumber(mobile) && Validations.isNotEmpty(password)) 
    {            
        new CreateUser().execute();
        Toast.makeText(RegisterActivity.this, "User Registered", Toast.LENGTH_LONG).show();
        //RegisterActivity.this.finish();

    }        

   else{
       Toast.makeText(RegisterActivity.this, "Fields are empty", Toast.LENGTH_LONG).show();
   }
  finish();
}   

by this is switched to login screen but application closes. i don't know what I did wrong.

Answer 1

    if(Validations.hasNoChars(username) && Validations.isEmail(email) && Validations.isMobileNumber(mobile) && Validations.isNotEmpty(password)) 
    {            
        new CreateUser().execute();
        Toast.makeText(RegisterActivity.this, "User Registered", Toast.LENGTH_LONG).show();
       Intent it=new Intent(this,login.class);
startActivity(it);

    } 

Try to do this is your Async executes successfully it will transfer you to login activity.