iOS8設定應用表徵圖紅點的許可權問題

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在ios8中，直接設定application badge value會出錯

 1 [[UIApplication sharedApplication] setApplicationIconBadgeNumber:count]; 

曝出”Attempting to badge the application icon but haven‘t received permission from the user to badge the application“的錯誤。

　　原因是因為在ios8中，設定應用的application badge value需要得到使用者的許可。使用如下方法諮詢使用者是否許可應用設定application badge value

UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge categories:nil];[[UIApplication sharedApplication] registerUserNotificationSettings:settings];

程式運行時，會彈出提示框給使用者

 

 

iOS8中新增了通知授權後的回調：
– (void)application:(UIApplication *)application didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings
問題解決：
把所有
– (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions中的-[UIApplication setApplicationIconBadgeNumber:]
移到
– (void)application:(UIApplication *)application didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings
回調中

iOS8設定應用表徵圖紅點的許可權問題