Top "Ui-thread" questions

In some frameworks there's a dedicated thread that exclusively manages all UI objects.

c# progressbar not updating

I have a ProgressBarWindow which has a progressbar and a cancel button on it which I use to report progress …

c# wpf progress-bar ui-thread
handler, I want to run periodically

Using handler wants to run periodically The count is 0, if the countis 1, else Please fix this code. mRunnable = new Runnable(){ @…

android handler ui-thread
Javafx Updating UI from a Thread without direct calling Platform.runLater

Nowadays some says it is not suitable to use Platform.runLater() for updating the UI from a non-JavaFX Thread and …

multithreading javafx task ui-thread concurrent-programming
LocationManager: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()

Normally an error while doing something on the UI thread from another thread I thought, but I don't get what …

android locationmanager ui-thread looper
Force redraw before long running operations

When you have a button, and do something like: Private Function Button_OnClick Button.Enabled = False [LONG OPERATION] End Function …

wpf user-interface dispatcher ui-thread
How do I test Prism event aggregator subscriptions, on the UIThread?

I have a class, that subscribes to an event via PRISMs event aggregator. As it is somewhat hard to mock …

c# tdd prism ui-thread eventaggregator
How to update UI from Android service using RxJava/RxAndroid

I have a Bound Service which responsible for downloading files and thus it knows the downloading status/progress. And the …

android android-service rx-java ui-thread rx-android
RecyclerView blocking ui thread during updates

There are more than 200 items in my list. RecyclerView is updated regularly (Every 10 seconds) . RecyclerView blocking ui thread for few …

android android-recyclerview ui-thread android-runonuithread
Why does my Thread freeze the UI-Thread?

I cant figure it out. For what ever reason, this thread's code is actually running on the UI thread. If …

android multithreading networking freeze ui-thread