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This guide explains how to integrate OneSignal with a Xcode project crated with Qt technology.
OneSignal is a very useful platform used to manage push notifications in iOS and Android. The integration is very easy if you are working with native project, but it becomes more difficult using Qt, in particular for iOS platform that requires some tricks to make it works.

  1. OneSignal Notification not working on iOS 10. Merge notifications with OneSignal. Flutter and Onesignal, hide notification. OneSignal & Firebase Cloud Function - Returned undefined, expected Promise or value. Hot Network Questions How to judge whether two.
  2. OneSignal is a free push notification service for mobile apps. This plugin makes it easy to integrate your native iOS app with OneSignal. See OneSignal's iOS Native SDK Setup Guide for documentation. See OneSignal's iOS Native SDK API page for a list of all available methods. See this repository's release tags for a complete change log of every released version.
  3. By default OneSignal plays the system’s default notification sound when the device’s notification system volume is turned on. Passing false means that the device will only vibrate unless the device is set to a total silent mode.

Browse other questions tagged ios xcode onesignal or ask your own question. The Overflow Blog What international tech recruitment looks like post-COVID-19.

Adding the target Notification Service Extension

The first big problem is regarding the Notification Service Extension, a target that must be added in your project in order to manage notifications in iOS.
For this reason, the integration of OneSignal requires this target too. In order to add the Notification Service Extension in your project you have to follow these steps: New -> Add Target - Notification Service Extension.

The target is created inheriting the configuration of the main project and it leads to an issue during the compiling of the project. The issue is due to a specific flag that comes from the main project created by Qt.

To fix this problem remove the flag -Wl,-e,_qt_main_wrapper from the Other Linker Flags in the Build Settings of the Notification Service Extension target.
Now the project can be built successfully.

Integration of OneSignal without CocoaPods

If you are not familiar with CocoaPods, we can simply say that it's a dependency manager for Swift and Objective-C Cocoa projects.
OneSignal provides a very easy way to integrate their framework in a Xcode project using a simple pod installation.

Everything works perfectly if you make the integration with a native project, but with a Qt project the integration doesn't work and creates many issues.

The solution is very easy and can be done by manually integrating the OneSignal framework.

If you don't have the framework yet, you can get it by creating a temporary Xcode project and installing it with the simple steps that you can find in OneSignal guide.

Take the framework and get rid of the temporary project.

Now that you have the framework you need to add it manually. In Notification Service Extension target 2 frameworks are required: OneSignal and SystemConfiguration.
In the main project you need to add 4 frameworks: OneSignal, SystemConfiguration, UserNotifications and UserNotificationsUI.

It's done. You can run your project using OneSignal.

Be sure that the project is correctly configured to manage push notifications (capabilities and certificates).
And don't forget to add all the necessary code specified in OneSignal guide, in particular in the Notification Service Extension.

Conclusions

This guide is written using Qt 5.12 with Xcode 10.2.
With the previous versions of Qt and Xcode, the integration of OneSignal was much easier, because there were no extensions to add in the native project and the installation using CocoaPods ran correctly.

Now, as you can see, the integration is pretty tricky and the only solution that I found is this.
I hope that with newer versions of both platforms these kind of problems will be fixed or, at least, better managed by Qt.

First of all, you need to Download and Import the OneSignal Unity SDK. Feel free to use it as an alternative to implementing push notifications with your own server.

C# (CSharp) UnityEngine WaitForEndOfFrame - 28 examples found. These are the top rated real world C# (CSharp) examples of UnityEngine.WaitForEndOfFrame extracted from open source projects. You can rate examples to help us improve the quality of examples. Programming Language: C# (CSharp). See Also: AsyncOperation, WaitForEndOfFrame, WaitForSeconds, WaitForSecondsRealtime, WaitUntil, WaitWhile. Inherited Members. Is something described here not working as you expect it to? It might be a Known Issue. Please check with the Issue Tracker at issuetracker.unity3d.com. Waitforendofframe. You can use it to read the display into a Texture, encode it as an image file (see Texture2D.ReadPixels and Texture2D.Texture2D) and store it on a device. Switching from the Game view to the Scene view causes WaitForEndOfFrame to freeze. It only continues when the application switches back to. WaitForEndOfFrame ensures that the next step will be run in the Update cycle. If you use C#'s async/await, there's no way to ensure it's complicated to ensure that the code remains in-step with the engine (see comments). Likewise, WaitForSeconds takes the current Time.timeScale into consideration, something that's not possible with await. There is a specific call (WaitForEndOfFrame in the current version of Unity) which is used in certain situations in relation to generating screen captures during development. (The exact mechanism changes slightly as Unity evolves, so google for the latest info if relevant.) PDF - Download unity3d for free.

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Adding the required code

Onesignal ios

In the first scene that is loaded when your game is opened add the following code to an object that is enabled in the scene. (You can create a new Script file or add it to an existing Script like your own GameController or TitlescreenController that you may have already created.)

Update OneSignal.Init(..) 1st parameter with your OneSignal App Id and the 2nd with your Google Project number(put null if your game isn't for Android).

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Setup

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  • Build from Unity and open the Xcode project.

  • Enable 'Background Modes' and check 'Remote notifications' under Capabilities on the 'Unity-iphone' target.

Optional custom notification sounds

Place your notification sounds anywhere in your Unity project. Build from Unity and open the XCode project. Drag and drop the custom notification sounds you want into the root of the XCode project.

Unlike Android custom sounds while sending a notification with a custom sound through onesignal.com, make sure to include the file extension.

The official OneSignal documentation can be found here.

If you have no OneSignal applications added to your account on OneSignal, you should create one and Generating an iOS Push Certificate.

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  • Setup
  • In-App Purchases
  • Game Center
  • Social
  • tvOS
  • Deeplinking
  • iCloud
  • Notifications
    • Push with OneSignal
  • More Features
  • Third-Party Plug-Ins
  • Playmaker
  • Notes
  • FAQ
  • Troubleshooting