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  • iOS8的一些控件的变更

    UISearchDisplayController变更为UISearchController

    UIAlertView变更为UIAlertController

    如果添加点击事件则需要使用UIAlertController其中的- (void)addAction:(UIAlertAction *)action;

    那么其中的UIAlertAction则需要添加相应的事件即可

    继续示例如下

        UIAlertController*alert=[UIAlertController alertControllerWithTitle:@"提示"message:@"现在返回将不保存校准数据,点击确定则保存数据"preferredStyle:UIAlertControllerStyleAlert];

        [alert addAction:[UIAlertActionactionWithTitle:@"取消"style:UIAlertActionStyleCancelhandler:^(UIAlertAction *action) {

            NSLog(@"取消");

        }]];

        [alert addAction:[UIAlertActionactionWithTitle:@"确定"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction *action) {

            NSLog(@"确定");

        }]];

        [selfpresentViewController:alert animated:YEScompletion:nil];

       总体说来呢这次的变化,以前是加载windows上,现在是在viewController。一定程度上简化了控件之间的逻辑,并且把代理取消了,转而使用block来进行替代,可见苹果未来的趋势是在砍掉代理这个事情

    iOS8有史以来最坑爹的版本了,在iOS8下,获取系统通讯录,会导致无回调,原因是他的2个原来的方法被删除了

    iOS7的方法

    (void) peoplePickerNavigationControllerDidCancel:(ABPeoplePickerNavigationController *)peoplePicker

    - (BOOL) peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person
    
    - (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier
    {    return NO;
    }
    

    iOS8的方法

    ​- (void)peoplePickerNavigationController:(ABPeoplePickerNavigationController*)peoplePicker didSelectPerson:(ABRecordRef)person NS_AVAILABLE_IOS(8_0);// Called after a property has been selected by the user.- (void)peoplePickerNavigationController:(ABPeoplePickerNavigationController*)peoplePicker didSelectPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier NS_AVAILABLE_IOS(8_0);​

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  • 原文地址:https://www.cnblogs.com/isItOk/p/4880975.html
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