缩回iOS键盘

UITapGestureRecognizer * tapGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(dismissKeyBoard)];

tapGesture.cancelsTouchesInView =NO;

[self.tableView addGestureRecognizer:tapGesture];

-(void)dismissKeyBoard{

[self.view endEditing:YES];
}

2。

- (void)touchesBegan:(NSSet )touches withEvent:(UIEvent )event

{

[self.view endEditing:YES];

}

self.tableView.keyboardDismissMode = UIScrollViewKeyboardDismissModeOnDrag;