If you want to dismiss the keypad manually through code, you can do that with the following methods
Method 1
Call these lines on which EditText you want to dismiss the keypad.
EditText txtEmail = (EditText) findViewById(R.id.inputEmail);
 
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(txtEmail.getWindowToken(), 0);