我有一个React Native应用程序,我试图获得一个发送到
JavaScript处理程序的静默iOS推送通知.
我看到的行为是AppDelegate中的didReceiveRemoteNotification函数被调用,但是我的JavaScript中的处理程序不会被调用,除非应用程序在前台,或者最近才被关闭.
我很困惑的事情显然是应用程序正在被唤醒,并且它的didReceiveRemoteNotification函数被调用,但是然后调用[RCTPushNotificationManager didReceiveRemoteNotification：notification]似乎没有任何作用.
另外,如果我在收到通知后打开应用程序,那么我看到React Native处理程序在这一点被调用.
我的didReceiveRemoteNotification功能如下所示：
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)notification
{
NSLog(@"didReceiveRemoteNotification");
[RCTPushNotificationManager didReceiveRemoteNotification:notification];
}
在我的React Native应用程序的Root组件中,我有：
componentDidMount() {
AppState.addEventListener('change',this.handleAppStateChange);
PushNotificationIOS.addEventListener('notification',(notification) => {
console.log("notification recieved");
})
}
handleAppStateChange(currentAppState) {
console.log(currentAppState);
}
{
"APNS_SANDBox":"{\"aps\":{\"content-available\":\"1\"}}"
}
这是XCode的日志：
2016-04-20 10:38:01.255 [info][tid:com.facebook.React.JavaScript] inactive 2016-04-20 10:38:01.986 [info][tid:com.facebook.React.JavaScript] background 2016-04-20 10:38:17.279 test[4056:1383261] didReceiveRemoteNotification 2016-04-20 10:38:17.284 [info][tid:com.facebook.React.JavaScript] notification recieved 2016-04-20 10:44:56.330 test[4056:1383261] didReceiveRemoteNotification 2016-04-20 10:44:56.332 [info][tid:com.facebook.React.JavaScript] notification recieved 2016-04-20 10:46:07.091 test[4056:1383261] didReceiveRemoteNotification 2016-04-20 10:49:30.039 [info][tid:com.facebook.React.JavaScript] notification recieved 2016-04-20 10:49:30.639 [info][tid:com.facebook.React.JavaScript] active
在此日志中,发送3个推送通知.在10:38和10:44收到的两个都正确地称为JavaScript.
但是,在10:46收到的那个没有在JavaScript中调用处理程序,直到我在10:49打开应用程序.
解决方法
为了在后台点击你的应用程序的通知,您还需要定义一个fetchCompletionHandler,其中包含完成处理函数,如下所示. aps：{content-available：1}有效载荷应该唤醒你的应用程序,并在你的AppDelegate中触发这个代码,然后在RN中命中你的JavaScript.
// fetch notifications in the background and foreground
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)notification
fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {
[RCTPushNotificationManager didReceiveRemoteNotification:notification];
completionHandler(UIBackgroundFetchResultNewData);
NSLog(@"Notification Body %@",notification);
}
