pragma mark -添加手势

-(void)addGestureRecognizerToTableView{

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


[_tableView addGestureRecognizer:tapGesture];

}

-(void)HideKeyboard{

[[[UIApplication sharedApplication]keyWindow]endEditing:YES];

}

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
if ([touch.view isKindOfClass:[UITableView class]]) {
return YES;
}

return  NO;

}