iOS - Keyboard resigns

iOS  離開textField，按背景時，鍵盤降下 Keyboard resigns

//Did End On Exit  輸入完畢時鍵盤降下

- (IBAction)textFieldReturn:(id)sender { //這裡的sender應該是keyboard

    

    [sender resignFirstResponder];

}

//Touch Down 按背景時，鍵盤降下

- (IBAction)backgroundTouched:(id)sender { //這裡的sender應該是背景

    

    [_tempTextField resignFirstResponder];

}