TimerView | 一个解耦良好的计时控件，可自由扩展。 | Date Time Utils library

So i have made a timer and it fully works for the most part. It has start, stop and pause buttons which works. Starting the timer works as long as i have input something in each of the three textfields (hour, minute and seconds) but as soon as one of them has no input (null) the timer wont start and spits out the error code

Exception caught by Gesture Invalid number (at character 1).

I have tried to put ?? 0 at lots of places in the code but i am quite new at this so that might be a totally dumb solution and it wont work.

I'm using the below Java class (Found on the web) as a countdown timer circle animation, The issue is that on some devices like Huawei Mate 10 Pro & Huawei G8 the animation finishes sooner than it is supposed to while on the other couple of devices that I've tested its working perfectly. For example on Mate 10 pro, when I call the class to start the timer with '10' as the parameter (circle animation supposed to be completed in 10 seconds but it goes faster and finishes in exactly half the time-5 seconds!-) while in another device with same Android version (Android 10) it's working perfectly (Completes in 10 seconds). So I figured the android version is not the problem here, Any idea what may be the issue ??

I am redeveloping an android app for iOS with SwiftUI that contains a countdown feature. When the countdown finishes the user should be noticed about the end of the countdown. The Notification should be somewhat intrusive and work in different scenarios e.g. when the user is not actively using the phone, when the user is using my app and when the user is using another app. I decided to realize this using Local Notifications, which is the working approach for android. (If this approach is totally wrong, please tell me and what would be best practice)

However I am stuck receiving the notification when the user IS CURRENTLY using my app. The Notification is only being shown in message center (where all notifications queue) , but not actively popping up.

Heres my code so far: The User is being asked for permission to use notifications in my CountdownOrTimerSheet struct (that is being called from a different View as actionSheet):

I can't make React re-render with MobX. I'm setting up everything as per the documentation. My class contains action and observable decorators. I tried hooking up the React component with useObserver hook or observer HOC and it simply won't re-render.

Snippet:

My goal is to create a view in SwiftUI that starts with 0. When you press the view, a timer should start counting upwards, and tapping again stops the timer. Finally, when you tap again to start the timer, the timer should begin at 0.

Here is my current code:

The latest MobX 6.0.1 release has a syntax that appears in the example app at https://codesandbox.io/s/minimal-observer-p9ti4 that I don't understand.

The code is:

I want to update the variable caloriesPerHour when the screen appears with the return of func calculateCaloriesPerHour.

I left a space for the .onAppear code (I am assuming thats where the code should go?)

Thank you for the help.

I have a timer view which I want to reuse and I want to start the timer by my binding variable running like this:

Unfortunately I am (too?) tired this morning to find a solution how to do that. :(

Maybe my solution is bad and there is a much easier way!?

I'm trying to make a timer count up the seconds I'm holding on a button.(holding to record a video) and its just not working correctly...sometimes its skipping seconds & sometimes just freezes and then speeding up to catch up ...i really need your help solving this, i need the timer to be as fluid and as constant as it can get, thanks.