Can I sign on to Facebook from an iPhone app using single-sign-on? - iphone-sdk-3.0

Can I sign on to Facebook from an iPhone app using single-sign-on? Using iPhone SDK 3.0?
How can I do that?

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How to identify whether the react native app is downloaded from Huawei App Gallery or Google Play Store?

I created a react native application which contains in-app-purchase.
in-app purchase - react-native-iap
I published my app into google play store, ios app store and It is working fine at google play store and ios app store.
I want to publish my app in Huawei app gallery.
react-native-iap does not support Huawei and I had to implement hms in-app purchase. But after that I am facing this problem.
There are two kind of Huawei mobile phones in market now.
Huawei mobile phones that supports both gms and hms.
Huawei mobile phones that supports only hms.
Huawei mobile phones that supports both gms and hms
In these user can download the app from Huawei app gallery or Google play store. How should I differentiate whether the app is download from Huawei app gallery or Google play store ?
Because based on this information I need to do the purchase (whether I use hms purchase or gms purchase)
Thank you.
You could try this PackageManager.getInstallerPackageName(String pack). This is an native method provided by Android for your information.
This method returns the package name of the software on which the application is installed. This method can be used to determine the market where the application was downloaded.

What Application type of Google Oauth when developing React-Native app

I'm working on React-Native app and my application should be working on both IOS and Android Platform. I need to add feature of signing through Google. So which application type should I choose on create client id page?

Google Cloud Messaging iOS 'NotRegistered' for some iOS devices

I use GCM in combination with an iOS app. The app registeres the device with GCM. I get a token from GCM, but when I send a message GCM reports ' NotRegistered'. Ik have tried to reinstall the app from Xcode, but the token is the same and keeps saying 'NotRegistered'. Deleting the app en reinstalling is does not help.
I have this problem on multiple devices (iPhone 6 iOS 9.1), iPad 3 and iPhone 4s. I have it working on a different iPhone 6 and iPhone 5s.
Could someone tell what is wrong? Or maybe how to force a new token from GCM?
Thanks in advance.

QuickBlox Android to iPhone This Video Cannot be Played

I'm using QuickBlox in our chat app. There is a video share feature. When a vidoe file is receieved from Iphone to Android phone via quickblox and opens the file, it gives the error, sorry this video cannot be played. The issue persist when file is received from Android to iPhone too. But it works fine between Iphone to iPhone and Android Phone and Android Phone.
Any Fix?
This is not related to QuickBlox SDK,
This is the issue with Video file format
You should play with video files format and find a one which works on both

starting web app mobile integrating with facebook javascript sdk

I'm a novice in this topic, I've already have an app in Sencha, now I want to integrate facebook login, I'm studing this facebook tutorial https://developers.facebook.com/docs/guides/mobile/web/#register
but I can't understand what is the Mobile Web URL, because my app is in Sencha.
In the ST2 SDK, there is a folder called examples, fine the Jog With Friends app and you can see how to implement facebook