iOS开发--UIApplication（IconBadgeNum）

最新推荐文章于 2024-09-13 17:06:49 发布

原创最新推荐文章于 2024-09-13 17:06:49 发布 · 338 阅读

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#ios #ios7 #ios开发 #应用

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本文将指导您如何在iOS7及之前版本中不注册即设置应用图标右上角数字，以及从iOS8开始的注册流程。通过在程序启动后调用特定方法，您可以轻松实现图标上的数字更新。

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在iOS7以及以前设置应用图标右上角数字都不需要注册的、iOS8之后都需要注册一下、一般在程序启动之后去注册；代码如下:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    [self registerUserNotificationTypeBadge];
    return YES;
}
/**
 *  注册一下
 */
- (void)registerUserNotificationTypeBadge
{
    UIApplication *application = [UIApplication sharedApplication];
    /**
     UIUserNotificationType 枚举类型
     UIUserNotificationTypeNone    = 0,      // the application may not present any UI upon a notification being received
     UIUserNotificationTypeBadge   = 1 << 0, // the application may badge its icon upon a notification being received
     UIUserNotificationTypeSound   = 1 << 1, // the application may play a sound upon a notification being received
     UIUserNotificationTypeAlert
     */
    UIUserNotificationSettings *setting = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge categories:nil];
    [application registerUserNotificationSettings:setting];

}

设置IconBadgeNumber
[UIApplication sharedApplication].applicationIconBadgeNumber = 12;
程序进入之后效果：
这里写图片描述