UISearchBar cancel button not responding

问题

I have implemented searchbar which shows cancel button once user has focus in searchbar. For this I have written searchBar.showsCancelButton = YES; in my searchBarTextDidBeginEditing method. In searchBarSearchButtonClicked, I resign the keyboard so that user can view full tableview.

Problem: At this point the searchbar cancel button is not responding. It only responds once searchbar gets focus again. Is this the default property of search bars cancel button or am I missing something in my code. I want to use cancel button without giving the focus in searchbar again.

回答1:

This is search bar cancel button's default behaviour. If you want other functionality, you can just uncheck cancelbutton property for search bar and can use UIButton as cancel button.

回答2:

Yes you can make your UISearchBar cancel button responding. By default it is disable but your can access it's sub view and then set enable to cancel button.

for (id object in [mySearchBar subviews])
{
    if ([object isKindOfClass:[UIButton class]])
    {
        UIButton *searchBarCancelBtn = (UIButton*)object;
        [searchBarCancelBtn setEnabled:YES];
    }
}

Follow this answer if you want some other logic Custom clear button in UISearchBar text field

回答3:

I think its a default behavior of UISearchBar when it gets focus then and only then the cancel button will be enabled. You cannot get cancel button event of UISearchBar when it has no focus.

So My suggession to achieve your task is,

Create a ToolBar
Insert UIBarButtonItem with custom view as UISearchBar
Insert UIBarButtonItem named "Cancel" with action

来源：https://stackoverflow.com/questions/14890164/uisearchbar-cancel-button-not-responding

标签

iphone

uisearchbar