设置通知侦听器

本主题介绍如何设置和删除云眼特性标帜(Feature Flag)AB实验 Android SDK 的通知侦听器。

通知侦听器触发您在 SDK 中触发某些操作时定义的回调函数。

最常见的用例是将所有特性标帜(Feature Flag)决策的流发送到分析提供商或内部数据仓库，以将其与您拥有的有关用户的其他数据联接。

通知侦听器类型

有关通知侦听器类型和用例的更多信息，请参阅通知侦听器。

有关代码示例，请参阅以下部分。

添加和删除所有通知侦听器

下面的示例代码演示如何添加侦听器、删除侦听器、删除特定类型的所有侦听器（例如所有决策侦听器）以及删除所有侦听器。

Kotlin

// Add Notification Listener (LogEvent) 
val notificationId = eyeofcloudClient.addLogEventNotificationHandler { logEvent: LogEvent ->     
    Log.d("Eyeofcloud", "event dispatched: $logEvent") 
}  

// Remove Notification Listener 
eyeofcloudClient.notificationCenter!!.removeNotificationListener(notificationId)  

// Remove all Notification Listeners 
eyeofcloudClient.notificationCenter!!.clearAllNotificationListeners()  

// Remove all Notification Listeners of a certain type eyeofcloudClient.notificationCenter!!.clearNotificationListeners(DecisionNotification::class.java)

Java

// Add Notification Listener (LogEvent) 
int notificationId = eyeofcloudClient.addLogEventNotificationHandler(logEvent -> {     
    Log.d("Eyeofcloud", "event dispatched: " + logEvent); 
});  

// Remove Notification Listener 
eyeofcloudClient.getNotificationCenter().removeNotificationListener(notificationId);  

// Remove all Notification Listeners 
eyeofcloudClient.getNotificationCenter().clearAllNotificationListeners();  

// Remove all Notification Listeners of a certain type      eyeofcloudClient.getNotificationCenter().clearNotificationListeners(DecisionNotification.class);

设置每种类型的通知侦听器

下面的示例代码演示如何设置每种类型的通知侦听器。

Kotlin

// SET UP DECISION NOTIFICATION LISTENER 
val notificationId1 = eyeofcloudClient.addDecisionNotificationHandler { notification: DecisionNotification ->     
    // Access type on decisionObject to get type of decision     
    val decisionType = notification.type     
    if (decisionType === "flag") {        
        val flagDecisionInfo = notification.decisionInfo        
        val flagKey = flagDecisionInfo["flagKey"] as? String        
        val enabled = flagDecisionInfo["enabled"] as? Boolean        
        val decisionEventDispatched = flagDecisionInfo["decisionEventDispatched"] as? Boolean        
        // Send data to analytics provider here     
    } 
}  

// SET UP LOG EVENT NOTIFICATION LISTENER 
val notificationId2 = eyeofcloudClient.addLogEventNotificationHandler { notification: LogEvent ->     
    // process the logEvent object here (send to analytics provider, audit/inspect data) 
}  

// SET UP EYEOFCLOUD CONFIG NOTIFICATION LISTENER 

val notificationId3 = eyeofcloudClient.addUpdateConfigNotificationHandler { notification: UpdateConfigNotification ->     
    val eyeofcloudConfig = eyeofcloudClient.eyeofcloudConfig 
}  

// SET UP TRACK LISTENER 
val notificationId4 = eyeofcloudClient.addTrackNotificationHandler { notification: TrackNotification ->     
    // process the event here (send to analytics provider, audit/inspect data) 
}

Java

// SET UP DECISION NOTIFICATION LISTENER 
int notificationId1 = eyeofcloudClient.addDecisionNotificationHandler(notification -> {     
    // Access type on decisionObject to get type of decision     
    String decisionType = notification.getType();     
    if (decisionType == "flag") {        
        Map<String, ?> flagDecisionInfo = notification.getDecisionInfo();        
        String flagKey = (String) flagDecisionInfo.get("flagKey");        
        Boolean enabled = (Boolean) flagDecisionInfo.get("enabled");        
        Boolean decisionEventDispatched = (Boolean) flagDecisionInfo.get("decisionEventDispatched");        
        // Send data to analytics provider here     
    } 
});  

// SET UP LOG EVENT NOTIFICATION LISTENER 
int notificationId2 = eyeofcloudClient.addLogEventNotificationHandler(notification -> {     
    // process the logEvent object here (send to analytics provider, audit/inspect data) 
});  

// SET UP EYEOFCLOUD CONFIG NOTIFICATION LISTENER 
int notificationId3 = eyeofcloudClient.addUpdateConfigNotificationHandler(notification -> {     
    EyeofcloudConfig eyeofcloudConfig = eyeofcloudClient.getEyeofcloudConfig(); 
});  

// SET UP TRACK LISTENER 
int notificationId4 = eyeofcloudClient.addTrackNotificationHandler(notification -> {     
    // process the event here (send to analytics provider, audit/inspect data) 
});