Solve the solution to the problem of bounced input box on swift3.0 keyboard

The following code is the solution code analysis of the swift3.0 keyboard pop-up occlusion input box problem introduced to you by the editor. The specific code is as follows;

extension LoginViewController:UITextFieldDelegate
{
func textFieldShouldReturn(_ textField: UITextField) -&gt; Bool {
()
//Retract the keyboard and put the view down(withDuration: 0.4, animations: {
 = 0
})
return true
}
func textFieldDidBeginEditing(_ textView:UITextField) {
// View pops up and follows the keyboard, high can be defined according to your own(withDuration: 0.4, animations: {
 = -150
})
}
}

OK, the code ends here, I hope it will be helpful to everyone!