textFieldShouldReturn不再起作用

Question

在iPad上，textFieldShouldReturn不再起作用。 直到大約五分鍾前，我才開始使用它，突然不再調用該方法了……有什么想法嗎？ 下面是代碼，唯一改變的是UITextView的通知…謝謝！

- (BOOL)textFieldShouldReturn:(UITextField *)tf
{
NSString* newName = textField.text;
textLabel.text = textField.text;
NSLog(@"Called!");

newName = [newName stringByAppendingPathExtension:@"txt"];
NSString* newPath = [[currentFilePath stringByDeletingLastPathComponent] stringByAppendingPathComponent:newName]; 
NSLog(@"%@",newPath);
[[NSFileManager defaultManager] moveItemAtPath:currentFilePath toPath:newPath error:nil];
[[NSNotificationCenter defaultCenter] postNotificationName:@"DataSaved" object:nil];
[currentFilePath retain];
currentFilePath = newPath;
NSString *documentsDirectory = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
[currentFilePath retain];
// Write out the contents of home directory to console

NSLog(@"Documents directory: %@", [[NSFileManager defaultManager] contentsOfDirectoryAtPath:documentsDirectory error:nil]);

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
textLabel.alpha = 1.0;
textField.alpha = 0.0;
[UIView commitAnimations];
[tf resignFirstResponder];
return YES;

}

Answer 1

最好的可能性-您可能不小心刪除了文本字段的委托。

Answer 2

在IOS 6中檢查(BOOL)textFieldShouldReturn:(UITextField *)textField方法。您必須在XIB中設置textField委托並寫下以下代碼：

(BOOL)textFieldShouldReturn:(UITextField *)textField{
  [textField resignFirstResponder];
  return YES;
}