background-thread Questions

3

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This bug baffled me for hours. I am getting the NullPointerException. The problem is this error is not consistent. It happens when I launch the app, but only occasionally. So I am not sure what is ...

2

Solved

Im making an application based on phonegap (cordova). I have tested it some times, and lately I saw a message in xcode that said "Plugin should use a background thread." So is it possible to make c...
Lawanda asked 13/3, 2014 at 14:47

8

I am trying to delay code in Kotlin I have tried Thread.sleep(1000) But its freezes the UI. Does somebody know why this is happening And how to delay without freezing the UI?
Lh asked 24/1, 2019 at 14:18

2

I have gone through the official documentation of react-native and some other medium sources and blogs, I came to know that there is UI Thread and JavaScript Thread in react-native. Javascript thre...
Disyllable asked 9/1, 2020 at 12:31

13

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I am trying to run a certain task everyday at 5 AM in the morning. So I decided to use ScheduledExecutorService for this but so far I have seen examples which shows how to run task every few minute...
Avoidance asked 4/12, 2013 at 22:56

2

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Related: Is it ok to create a UIView on a background thread? Is this background-thread code safe? let viewController = MyViewController(nibName: nil, bundle: nil) viewController.title = "My Title...
Gassing asked 3/11, 2015 at 23:37

1

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Future getImage() async { var image = await ImagePicker.pickImage(source: ImageSource.camera); setState(() { _image = image; print("IMG:" + _image.toString()); }); setPrefs() ; } F...
Globe asked 31/7, 2018 at 12:34

5

I am in the process of creating an app that is similar to the built-in SMS app. What I need: a service that is always running in the background every 5 min. the service checks the current loca...
Evidential asked 2/4, 2010 at 11:23

4

Android docs indicate that Oreo has new restrictions on background execution: https://developer.android.com/about/versions/oreo/background. This seems reasonable and they're clearly aiming to make ...
Clarenceclarenceux asked 12/7, 2018 at 3:39

21

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Been encountering this error a lot in my OS X using swift: "This application is modifying the autolayout engine from a background thread, which can lead to engine corruption and weird crashes. ...
Meyers asked 3/2, 2015 at 15:1

0

I want to run the function in the background. But I get an error. The error I received is "nw_connection_receive_internal_block_invoke. Why am I getting this problem? I'm trying it on an iOS ...
Markettamarkey asked 8/8, 2019 at 13:21

5

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I'm a bit confused about how and when to use beginBackgroundTaskWithExpirationHandler. Apple shows in their examples to use it in applicationDidEnterBackground delegate, to get more time to comple...

3

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I am trying to access my database every 30 seconds, however, whenever the method executes I can clearly see a performance dip in the application. So far this is my current code: var timer = Timer...
Glaikit asked 26/12, 2018 at 6:14

2

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I am making a file browser in qt for some custom design-files. I want to load their preview as their thumbnail and for that reason I am using QIconProvider to return the Icon to my QFileSystemModel...
Katonah asked 25/8, 2016 at 11:55

2

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"THREAD WARNING: ['Console'] took '81.661865' ms. Plugin should use a background thread." While running iOS Phonegap project. Similarly for some of the remaining plugins like geolocation and fil...

6

I need to populate a SQLite database every few minutes in Django, but I want to serve stale data until the data is available for the database to be updated. (i.e. I don't want to block for the data...

2

I am confused about how the Android system works, specially when it updates the view hierarchy. We all know that we should not update any view from any thread other than UI (Main) thread. And even ...
Bladdernose asked 7/12, 2015 at 11:44

3

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Suppose you use a ThreadPool to perform some operations and assume that each operation writes on a file. All threads of ThreadPool are background threads, so they will be terminated when closing th...
Sanalda asked 19/2, 2015 at 14:56

1

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I'm new to Magical Record, but already have seen a few questions on stackoverflow, and can't find an answer to my question. I have to find items with the predicate using this type of construction:...
Grimy asked 28/1, 2014 at 10:7

1

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I need to add lots of views in a loop, while this fragment does that, the app will also have a navigation drawer and action bar where the user can do things. so I would like this process to not a)...
Wheelsman asked 25/9, 2013 at 19:49

3

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What is the best way to create a background thread that will run every 15 minutes to get the data from the database? Below is the code I have which will work fine I guess in production but is ther...
Isomerous asked 21/8, 2013 at 19:16

4

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I have a GUI which is quite heavy to build/initialize on the platform on which it runs.. Therefore I want to update progress while it initializes.. I have a small undecorated JDialog containing a ...
Kaolinite asked 16/8, 2011 at 13:14
1

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