我有一个带有这个 NSNotification 的 UITextField:
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(textFieldDidChange:) name:@"UITextFieldTextDidChangeNotification" object:_searchTextField];
- (void)textFieldDidChange :(NSNotification *)notif
{
//
}
NSLog 是我输入的时候r
NSConcreteNotification 0x193c20 {name = UITextFieldTextDidChangeNotification; object = <UITextField: 0x15a980; frame = (20 20; 280 31); text = 'r'; clipsToBounds = YES; opaque = NO; autoresize = RM+BM; layer = <CALayer: 0x15aad0>>}
如何r
从通知对象中获取文本?