关于IOS9的本地通知方法

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做stone的本地通知，也就是连接之后，app进入后台或者锁屏，按下stone的按键，手机端需要有本地通知。
实现方法是：
1、需要实现后台APP BLE继续运行：

2、在按键按下的方法里面添加：

UIApplication *app = [UIApplication sharedApplication];

    if ((app.applicationState == UIApplicationStateBackground) ||
        (app.applicationState == UIApplicationStateInactive)) {

        if (keyValue != 0) {
            NSLog(@"Background Key Value %d", keyValue);

            UILocalNotification *localNotif = [[UILocalNotification alloc] init];
            if (localNotif == nil) {
                return;
            }

            localNotif.soundName = UILocalNotificationDefaultSoundName;
            localNotif.applicationIconBadgeNumber = keyValue;
            localNotif.alertBody = [NSString stringWithFormat:@"You pressed button %d", keyValue];
            //localNotif.alertAction = @"Deanna got something for you";
            localNotif.hasAction = NO;
        //注意 ：  这里是立刻弹出通知，其实这里也可以来定时发出通知，或者倒计时发出通知
            [app presentLocalNotificationNow:localNotif];
        }

    }

3、更为重要的是需要在AppDelegate.m中来注册通知

• (BOOL)application:(UIApplication )application didFinishLaunchingWithOptions:(NSDictionary )launchOptions

• {

• if ([[UIDevice currentDevice].systemVersion doubleValue]>=8.0) {
  UIUserNotificationSettings* settings=[UIUserNotificationSettings
  settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound
  categories:nil];
  [application registerUserNotificationSettings:settings];

  }

  return YES;
  }

做完上面几个步骤，就可以实现通知了。