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I needed a way to play a sound at a certain time even though the app is in the background. The problem is that the app is paused as soon as it goes into the background, you can delay this by 30 seconds, but if you take longer, the app is stopped and no more code is executed. Now I have found a way t

My app uploads files in background. It's relatively simple. You need to change NSURLSession and then you can use standard httpjob. I attached a sample, which I used before adding a code to my real app. This sample downloads files, but upload will work also. Click any button, switch to another app,
link: I would create a table in the db and place in it all the filenames (one in each record) and an indicator Uploaded (field) next to each. Then with sile
link: I've asked a similar question before but never found an answer. I need to upload a lot of files to the server and ios really lacks background uploads
link: That is, if I use silent push notifications, will it make the application work in the background? There are several problems here: - I don't have acce

This tutorial explains how you can play local audio files or stream audio while your app is in the background. Standard applications are killed when moved to the background. However you can add the following attribute to your project to mark it as an application that plays audio in the background:
link: brilliant thank you so much for this, really essential for a lot of apps I'm srue
link: this is great... just discovered this thread, did not knew its possible with b4i..

There are very specific and limited things that you can do in the background. You can download in the background: Background Fetch (Downloads) Search for silent push notifications and do note that they aren't very reliable.
link: Both Android and iOS will kill the app at some point when it is in the background. iOS will do it faster.
link: Hello all, I just started to use B4XPages to convert some Android Apps to Ios and noticed that background tasks those were running in Android usin
link: Then, I think that the solution is the same for both: use push Firebase to restart when required correct ?

I think it's not possible to do precise timely scheduled tasks in the background with iOS With location and the appropiate background bluetooth usage declarations in plist, if you make sure to leave the ble scanning for certain services when going to background, this task is transfered to coreBluet
link: If this is not a store app then you can manipulate the location or audio background features.
link: I'm working on an app which needs to stay active while in background (i.e. not displayed on screen, while the user is doing something else, like talki
link: unfortunately, this must be a store app, but the location/audio hint can be worth exploring...

You can do whatever you like while the app runs. You cannot extend the running period.
link: Hello, is this method while downloading files with httpjob also accurate for uploads? If yes, is there any way to allow more than 30 seconds? https:

Most of these things are not possible. Running your app in the background in iOS is difficult. You can prevent the app from being killed by implementing the background location tracking feature (you will not be able to submit your app to the store). You can periodically check the ip address with S

If you want to set 'solid' background, you need ImageView (with lowest z-order). But if you need a pattern (repeated image), you can set it like color. Dim nativeObjectPattern As NativeObject nativeObjectPattern = nativeObjectPattern.Initialize ("UIColor").RunMethod ("colorWithPatternImage:", Arra
link: Not good. Don't write platform specific code unless you must. The correct way to do it is to add an ImageView to the layout, anchored to all sides an
link: is possible to set a background image on a B4XPages ? what is the code without use designer? in B4a is Activity.SetBackgroundImage(LoadBitmapSample(Fi
link: Erel can you post an code example ? Im not using the designer to create a layout

Are you sure that the connection is still valid when the app quits? It will not add much, but you can ask the OS to give you more time: https://www.b4x.-of-services-in-ios.130536/#post-821810
link: Hello Has anyone acheived a BLE connection to an iTag device and kept the connetion live in the background on an iPhone. I have an app(SOS app) that
link: I have class's the do the data sending, should I implement the background task request in the class's ?

Background fetch will allow your app to run in the background from time to time. With some work, and assuming that you control the server, you can implement a "resumable upload" feature.
link: I think this is an important feature and I would like b4i to support it. Since there are no services in ios like in android, it turns out that the app
link: Not understood. What does it mean to run in the background from time to time? That is, once in a while, the application can run in the background? How
link: You can download files by combining: https://www.b4x.com/android/forum/threads/b4x-rangedownloader-resumable-downloads.133370/#content and https://www

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