App crashes on iOS Device

[hrishikeshd10]

The app Crashed on clicking The floating action button to select image in example project.
No error was thrown.
The complete debug console log is here:

`Launching lib/main.dart on iPhone S in debug mode...

Xcode build done. 66.6s

Connecting to VM Service at ws://127.0.0.1:52406/Nm_PiFrIudM=/ws

Lost connection to device.

Exited
(sigterm)`

[Letalus]

could you run the code in xcode on an iOS emulator and post the error from the xcode console? Most of the time the "Lost connection to device" error is a native error. If there is no error, could you check if the simulator closes the app due to a too high cpu usage.

[Mangielijah]

I think the prob is with the compute function and how it was called.
what happen is when the for each filter in the list of filter the compute function is call which spawns up an isolate to add the the filter to image. but not all the isolates get destroy so even when you select and click save the isolate is still taking up memory. so if you use the filter future about 3 times the app is going to crash or loss connection probably due to lack of memory as each isolate should take about 2 Mb of memory or more.

My solution was since you don't have the power to terminate the compute function create an isolate Worker class to spin up an isolate which you can dispose after using the image filter module. My app no longer crashes

[skkallayath]

@Mangielijah Thanks for the fix. It will be very helpful if you can create a pull request with the changes. Thanks in advance

[gulmensedat]

I think the prob is with the compute function and how it was called.
what happen is when the for each filter in the list of filter the compute function is call which spawns up an isolate to add the the filter to image. but not all the isolates get destroy so even when you select and click save the isolate is still taking up memory. so if you use the filter future about 3 times the app is going to crash or loss connection probably due to lack of memory as each isolate should take about 2 Mb of memory or more.

My solution was since you don't have the power to terminate the compute function create an isolate Worker class to spin up an isolate which you can dispose after using the image filter module. My app no longer crashes

How did you make the isolation? I choose the photo from the album, then I exit the screen and return to the previous screen, I choose from the album again, it explodes.

[vinothvino42]

It's not working for me in iPhone 5s, it simply showing the screen (at some times) and destroys the app automatically