background-thread

Run Service in background Thread

由 二次信任 提交于 2019-12-13 20:15:54
问题 Can I run Service in background thread? I want to load data from database and during loading data i want progress bar to be indicating progress. First I have created task, run it in background thread and then update progress bar according to this task. However, I found out that this Task is not reusable, so next time i hit the button, it didn't work. Later on, I fount out that Service can run Tasks multiple times, So i have encapsulated those tasks inside of Service. Now it works great -

Good way to run recurring background task in WCF?

由 旧城冷巷雨未停 提交于 2019-12-13 14:46:21
问题 I have a WCF solution that runs under IIS. Some of the data I need to give back to clients comes from a third party website that we will need to poll frequently to get any new data. Would it be a bad practice to create a Timer in the Application_Start() method to run a recurring background Task for this purpose? And if it's not a good idea, then what do you recommend? 回答1: No it's not a good idea. The reason for this is that IIS can and will unload your app domain for many different reasons.

Xamarin.Forms Background Thread

由 百般思念 提交于 2019-12-12 22:18:30
问题 I'm trying to get a really simple application running listing google Task. I have a SQLite local db I'd like to sync / try syncing at regular interval with Google's server. I was thinking of simply running a simple background thread so it'd work easily on all devices. Problem comes down creating that background thread in a PCL project (Xamarin.Forms) I can't seem to find a proper way of making one. Currently I just have a second thread running as such: private bool Sync() { //Does stuffs }

calling a function on a background thread ios-what happens to the nested function calls

由 [亡魂溺海] 提交于 2019-12-11 23:42:50
问题 In my main code(in order to show UIActivityIndicatorView) I'm calling a function, foo() on a background thread. What happens to the functions called by foo() in turn? Will those functions also be called and executed in the same background thread? 回答1: Yes, it will also be called in that same background thread. It's actually pretty easy: everything you call will be run in the same thread as the caller, unless you explicitly use methods to create a new thread and run a method there or cause a

BackgroundTask iOS 13 Swift

由 丶灬走出姿态 提交于 2019-12-10 03:34:25
问题 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 13 device. But I can't run the application in the background. I added a background run feature in Info.plist . I want to run the interator.tickTimer function in the background. But I'm getting an error. Does not work in the background. In the background, I want to periodically retrieve data from firebase.

Run timer in background thread

由 匆匆过客 提交于 2019-12-07 21:47:00
问题 Im looking for a way to use a System.Windows.Forms.Timer within a backgrounder thread. I cam having a lot of trouble getting it to start and stop within the background thread. This is what i am doing: private System.Windows.Forms.Timer chkTimer = new System.Windows.Forms.Timer(); Then in the backgroundworker_dowork method i have this: chkTimer.Interval = 2000; chkTimer.Tick += new EventHandler(chkTimer_Tick); chkTimer.Start(); In the Tick method i have the timer related code but it will not

BackgroundTask iOS 13 Swift

由 爷，独闯天下 提交于 2019-12-05 03:39:51
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 13 device. But I can't run the application in the background. I added a background run feature in Info.plist . I want to run the interator.tickTimer function in the background. But I'm getting an error. Does not work in the background. In the background, I want to periodically retrieve data from firebase. import BackgroundTasks @available(iOS 13.0, *) extension AppDelegate { func cancelAllPandingBGTask() {

NullPointerException in HandlerThread

由 て烟熏妆下的殇ゞ 提交于 2019-12-04 07:08:24
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 causing it. I apologize for the verbose question with the error log, but I could not find another way of asking. The error log is as follows: FATAL EXCEPTION: main Process: com.myproject.android, PID: 22175 java.lang.NullPointerException at com.myproject.android.ImageDownloaderThread.queueImage(ImageDownloaderThread.java:74) at com.myproject.android.NewsItemPagerActivity

android addView in background thread

由 若如初见. 提交于 2019-12-03 13:29:36
问题 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) slow down the app by blocking the user, b) preferably add the views in a background thread. The dilemma is that I think android doesn't like views to be added in a non-UI thread, so is there a best practice for this? I plan to have a progress bar view object visible in the fragment's view while the

Cordova shows an warning as “ THREAD WARNING: [Your function] took [n] ms. ” in iOS

由 断了今生、忘了曾经 提交于 2019-12-03 12:02:54
问题 "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 filesystem. As I am new to Phonegap ,can please anyone tell me how can I run the plugin on background thread. I have checked this also. Can we ignore this thread warning or is it related to memory issue in iOS Phone-gap thanks 回答1: As per this. solved my warning issue I found warning can be ignored .But
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