Detect UISearchBar focus on the text field

我只是一个虾纸丫 提交于 2019-12-05 05:59:28

From the docs,

  • searchBarTextDidBeginEditing:
  • searchBarCancelButtonClicked:

If you are implementing UISearchBarDelegate, the first method that should be called is:

- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar {  
    //do stuff
    return YES;  
}  

Here's the class reference:

http://developer.apple.com/iphone/library/documentation/UIKit/Reference/UISearchBarDelegate_Protocol/Reference/Reference.html#//apple_ref/occ/intfm/UISearchBarDelegate/searchBarShouldBeginEditing:

Your searchbar delegate should receive a searchBarTextDidBeginEditing: message.

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