iOS点击空白处收起键盘

#pragma mark - 空白处收起键盘

- (void)addGestRecognizer{

    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapped:)];

    tap.numberOfTouchesRequired =1;

    tap.numberOfTapsRequired =1;

    tap.cancelsTouchesInView = NO;

    [scrollView addGestureRecognizer:tap];

}

- (void)tapped:(UIGestureRecognizer *)gestureRecognizer{

    [self.view endEditing:YES];

}

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