Objective c requestAccessToEntity iOS6-向后兼容性-EKEventStore
在遵循iOS6 eventKit和新的隐私设置之后,我使用了以下代码——这在iOS6设备上运行得非常好 尽管如此,我还是希望同样的代码也适用于iOS 5.x设备,我不希望再写两次“同样的代码”似乎是错误的 任何人都可以帮助您找到一个优雅的解决方案吗Objective c requestAccessToEntity iOS6-向后兼容性-EKEventStore,objective-c,ios,ios5,ios6,Objective C,Ios,Ios5,Ios6,在遵循iOS6 eventKit和新的隐私设置之后,我使用了以下代码——这在iOS6设备上运行得非常好 尽管如此,我还是希望同样的代码也适用于iOS 5.x设备,我不希望再写两次“同样的代码”似乎是错误的 任何人都可以帮助您找到一个优雅的解决方案吗 EKEventStore *eventStore = [[EKEventStore alloc] init]; [eventStore requestAccessToEntityType:EKEntityTypeEvent completi
EKEventStore *eventStore = [[EKEventStore alloc] init];
[eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
// some code
}];
我用这个:
void (^addEventBlock)();
addEventBlock = ^
{
NSLog(@"Hi!");
};
EKEventStore *eventStore = [[UpdateManager sharedUpdateManager] eventStore];
if ([eventStore respondsToSelector:@selector(requestAccessToEntityType:completion:)])
{
[eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error)
{
if (granted)
{
addEventBlock();
}
else
{
NSLog(@"Not granted");
}
}];
}
else
{
addEventBlock();
}
我认为这样可以减少代码重复。如果您在带有EKEventEditViewController的modalviewcontroller中显示事件,iOS会自动向您显示一个视图,说明权限被拒绝时该怎么办。因此,我这样做: 在viewDidLoad中:
eventStore = [[EKEventStore alloc] init];
在用于添加事件的方法中:
if ([eventStore respondsToSelector:@selector(requestAccessToEntityType:completion:)])
{
__block typeof (self) weakSelf = self; // replace __block with __weak if you are using ARC
[eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error)
{
if (granted)
{
[weakSelf performSelectorOnMainThread:@selector(addEventToCalendar) withObject:nil waitUntilDone:YES];
}
else
{
NSLog(@"Not granted");
}
}];
}
else
{
[self addEventToCalendar];
}
我有一个EventUtil.m文件
+(void)proxyForIOS6EventKitToCallFunction:(SEL)function WithViewController:(UIViewController*)viewController {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
AppDelegate *app = (AppDelegate*)[[UIApplication sharedApplication] delegate];
if([app.eventStore respondsToSelector:@selector(requestAccessToEntityType:completion:)]) {
// For iOS 6
MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:viewController.view animated:YES];
hud.labelText = @"";
//invoke requestAccessToEntityType...
[app.eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
//Handle the response here…
//Note: If you prompt the user, make sure to call the main thread
if (granted == YES) {
dispatch_async(dispatch_get_main_queue(), ^{
[viewController performSelector:function];
});
}
}];
}
else {
[viewController performSelector:function];
}
#pragma clang diagnostic pop
}
在要访问日历的视图控制器中,我导入EventUtil.h文件并调用此函数:
[EventUtil proxyForIOS6EventKitToCallFunction:@selector(displayModifyCalendarAlertView) WithViewController:self];
displayModifyCalendarAlertView是我想在日历权限被授予时调用的函数(iOS6或iOS<6)。hmm,这不是最优雅的解决方案,但我可以接受,谢谢。我在这方面有问题,它不是等到它完成,所以我在我的所有事件数组中得到空值,我不能在我想要的地方使用,3秒钟后它得到打印我的所有事件数组如何克服这个问题