I'm using react-native-navigation v1. In my app I'm letting 2 users compete solving a number of questions each one has his turn. What I want is when the one user kills the app, the other user is notified. How I detects when the user kills the app in a specific screen.
I have searched react-native-navigation docs and issues and did not find anything relevant.
This has nothing to do with the navigation itself and, as far a I know, you cannot detect easily if the App is being closed in React Native. If it goes well, you could simply have some kind of heartbeat or disconnection detection settled up in the server you are using. As soon as you "detect" the App being closed send a notification to the other user.
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first time asking here as i am looking for some guidance before i start coding.
I have been developing websites mostly in PHP/MySQL/Jquery for years. As I was requested to port a website to an app, I selected React Native in order not to learn 2 different languages for IOS-Android.
I subscribed to some react native lessons, as I found it very clear and fun to follow, and it indeed is.
But here I am finding that to replicate the website is a truly difficult task for me. A temporary version exists at https://app.thallo.care/app.php?language=en (view on mobile if you like). There are many fixed positioned things and floating menus that i cannot easily program on react native.
I tried webview, it works wonderfully, but i am not positive i will be able to implement notifications the way i want to, or custom app styling with inject javascript i am unsure it will work.
The only app difference comparing to the desktop version, is that the user will receive notifications. The website will have a calendar where he will add events, and i need to send notifications to the user device on the event datetime that he has set.
Now the question... Should i use webview and manage notifications on a third party app like amazon SNS or anything else, will i get per-user notifications on events with webview? (I dont need to open a specific page on the app, but it would be nice). Or should i insist on react native coding and try to replicate as much as possible, to be able to have proper notifications? Reminder - the events won't be sent by the app. they are stored in MySQL and should be stored on some other service as well (that i dont know of yet). I don't know also if the webview can handle the website programmed login-logout with $_SESSION php parameters.
I would really appreciate some guidance.
Thanks in advance,
I am currently trying to find the most efficient way to continue a method in the background of my app.
I am probably adding location/gps to my app soon, so I was considering using that flag to keep the app Active in the background. However, I do not want to add that flag yet because I want to post an App Update before I add the location functionality.
I know the exceptions;
Apps that play audible content to the user while in the background, such as a music player app
Apps that keep users informed of their location at all times, such as a navigation app
Apps that support Voice over Internet Protocol (VoIP)
Newsstand apps that need to download and process new content
Apps that receive regular updates from external accessories
Besides asking for a more generic idea then these ^, can someone explain the "external accessory" flag please? I am recording video from an outside device. However, I do not know what constitutes an "external accessory".
I also see that iOS7 has introduced new Multi-tasking functionality but I haven't seen any examples that I understand can someone also explain that? Maybe that is a viable solution?
Thanks in advance!
I am currently making an app that recommends other apps to download on the apple app store. I assumed that the only way for users to download these linked apps was to call the iTunes URL of the particular app -> the apple app store would then open pushing the original calling app into the background -> then the user would press the download button here as per normal.
Then I was playing with the app "App Hero" and they do something I thought wasn't possible. You can actually download another app to your device without ever leaving the "App Hero" application. I thought this was impossible due to sandboxing. They have a modal segue to what appears to be an embedded app store where you can commence installation of another app. This "embedded" app store doesn't have the usual UITabBar running along the bottom but everything else is basically the same.
Does anyone have any idea how they would have achieved this? It doesn't appear to be a UIWebView, perhaps I am wrong. And is this against any of the apple regulations?
*This is no way an advertisement for "App Hero". I am genuinely impressed/confused how they are able to do this and would love this functionality in my own app if it is allowed.
The class you are looking for is called SKStoreProductViewController. Docs here.
As we know, at windows 8 if user is at start screen or another store app (metro app) UI, the dialog at the desktop won't be visible to user. We are adding some toast notification capability at our application by following Sending toast notifications from desktop apps sample. I am able to get it working. However if user is already at the desktop, we don't want to send out the toast notification. So it would mean that we need to be able to detect if user is current at desktop or not. Somehow I didn't find any API by searching on internet. Could someone let me know how to do so? Thanks very much.
A toast notification can't know in what context the user is located, so this is not possible.
When a user first opens my app, I need to download and install some content from a server before they can begin using the app. The problem is that this takes around 5 minutes on wifi, during which time the app goes into the background and the download is suspended.
Is there any way to either:
prevent an iOS app from entering the background whilst I perform my download
or continue peforming the task in the background (i.e. perform the task irrespective of whether the app is in the foreground or background)
Thanks
It really doesn't matter, if the user presses the home button it will go to background. Although you can do two things to mitigate the problem:
Use beginBackgroundTaskWithExpirationHandler, to give you a bit more time to download. Which you can read here.
Don't allow the device to become iddle, with [UIApplication sharedApplication].idleTimerDisabled = YES;. You can read more about that here.
Either way, the best thing you can do is to tell the user, that is an important download and he shouldn't quit the application.
Can't you include some or all of the content in your app bundle instead, and just download changes on first run?
I can't imagine this is a good first user experience, and it may not pass App Store review like this.
The only third party apps that are allowed to download in the background are newsstand apps loading issue content, and Apple are pretty strict about what they allow as newsstand apps.
You can't do what you want, in this situation. One way, and I think the best and only, is to resume your download when you app becomes active (returns to foreground state). Also, don't forget to register for connectivity notifications (Reachability class can be used for this purpose from this Apple sample app http://developer.apple.com/library/ios/#samplecode/Reachability/Introduction/Intro.html). Good Luck!