objective-c - UIAlertview 消息未正确显示

Question

我有一个UIAlertView并声明为

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"NEW_ALBUM" message:@"ENTER_ALBUM_NAME" delegate:self cancelButtonTitle:@"CANCEL" otherButtonTitles:@"Ok",nil];
alert.tag = 999;
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
[alert show];
[alert release];

结果警报显示为