点击键盘的回弹效果的两种方法

//当点击键盘return键的时候
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    [textField resignFirstResponder]; // 释放第一响应者
    NSLog(@"%@",textField.text);
    return YES;
}

// 触摸屏幕回收键盘
- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    [self.view endEditing:YES];
}