iOS App系统消息数清除(IconBadgeNumber小红

推送系统消息数清除(小红点)

关键代码

#include "AppDelegate.h"

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application
    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  [GeneratedPluginRegistrant registerWithRegistry:self];
   return [super application:application didFinishLaunchingWithOptions:launchOptions];
}

-(void)applicationDidBecomeActive:(UIApplication *)application {
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:1];
    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0];
    [self resetBageNumber];
}

-(void)resetBageNumber
{
    UILocalNotification *clearEpisodeNotification = [[UILocalNotification alloc] init];
    clearEpisodeNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:(1*1)];
    clearEpisodeNotification.timeZone = [NSTimeZone defaultTimeZone];
    clearEpisodeNotification.applicationIconBadgeNumber = -1;
    [[UIApplication sharedApplication] scheduleLocalNotification:clearEpisodeNotification];
}

//点击App图标，使App从后台恢复至前台
- (void)applicationWillEnterForeground:(UIApplication *)application {
    [application setApplicationIconBadgeNumber:0];
    [application cancelAllLocalNotifications];
}

//按Home键使App进入后台
- (void)applicationDidEnterBackground:(UIApplication *)application{
    [application setApplicationIconBadgeNumber:0];
    [application cancelAllLocalNotifications];
}

@end