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Questions tagged [flutter-devtools]

42 questions
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1 answer

Flutter devtools throw error immediately when it's open

I have an application that has some RenderFlex overflowed issues, so as everyone facing problems like this, I tried to open the Flutter dev tools. the is debugging fine with those Renderflow issues, but just when I open the dev tools, immediately it…
Gwhyyy
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How do I open Flutter DevTools in a separate window in VSC?

How to open Flutter DevTools in a separate window when using Visual Studio Code, so one can debug on a second monitor?
davdog00
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How do I fix Dart DevTools Widget Inspector that is stuck showing a circular progress indicator?

I had a Flutter app crash while I was debugging it from the Dart DevTool "Logging" page. After this occurred, all I see when I start debugging is that the Widget Inspector shows a circular progress indicator. I'm now testing with the Flutter…
j-vasil
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Flutter Video Player Issue : Preloading Features

I wanted to share a challenge I've encountered while working with the video preloading functionality in Flutter, using the video player dependency. I've been trying to implement a smooth video preloading mechanism in my Flutter app. My approach…
Abhishek Jha
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Use Devtools with integration tests

Is there a way to trace performance (CPU profiling, Memory View) during the evaluation of integration tests in Flutter?
FieryCat
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Error in flutter devtools detect leaks tab "TypeError: Instance of 'minified:Kl': type 'minified:Kl' is not a subtype of type 'minified:Hc'"

I am using leak_tracker package in flutter to detect memory leaks. In dev tools in the detect leaks tab when i click on analyse and dowload button this error is being shown: Error: TypeError: Instance of 'minified:Kl': type 'minified:Kl' is not a…
Devanshu Rawat
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How can I have a color that is going to change, when I select a certain topic on Flutter. Can I use the notifier with the Color Widget?

So I am currently trying to figure out a way to give a color to a certain card depending on which subject the user has selected. I am usifier a notifier. Previously in my code, I was able to refer to look for a precise image that would be related to…
Adam Messier
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Is there a way to mock flutter module API calls in native mobile application

I have a native android application with flutter module integrated in it. I want to mock flutter module API calls but getting below error in Charles proxy I am able to intercept native android API calls and modify the responses using charles but…
Rohit
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Flutter DevTools Treemap missing

The flutter documentation has a link to this article. The article has a screenshot showing a treemap of object usage. The screen I see after following the instructions in the article differs considerably from the one shown in the article. I don't…
user3185563
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Each image request in the network of Flutter devtools generates a ws request

enter image description here Please help，I have encountered a problem。 Each image request in the network of Flutter devtools generates a ws request I really can't find the problem
Edwin NL
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Flutter installation keeps failing

i want to install flutter on my mac but it keeps saying flutter not found, keeps showing this. I already set up my path and every other thing but i dont know whats wrong Flutter (Channel unknown, 0.0.0-unknown, on macOS 13.2 22D49 darwin-x64, locale…
Gbenga Otunla
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canLaunch is not launching URL in ios.But works fine in Android

I am using canLaunchUrl to launch a UPI payment URL. This is working fine in Android but does not work in iOS. In iOS, they are not launching the URL instead they are moving to the else case and showing the toast message that we gave in the code.…
Geethu
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Flutter error: Unhandled Exception: Null check operator used on a null value E/flutter (12049): #0 ScrollPosition.viewportDimension

This is where they are pointing. My screen is just showing a white screen. None of the datas are getting displayed. How to solve this problem?Please help. Please help me to solve this problem.
Geethu
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Flutter image.network not show some images in safari browser

i am adding a link image in my flutter web app in "image-network" widget".it runs in chrome and it shows all the images but some images are not showing in safari?? i am expecting this enter image description here.but I got this enter image…
ABHISHEK RANJAN
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Flutter Dev Tools Network Traffic is no longer usable. Is there an alternative?

Is there a way we can efficiently look at network traffic with Flutter when developing for iOS and Android? Flutter obviously doesn't work with proxy tools like Charles and while there used to be a hack to make it work, it only worked on simulator…
Hayden Young
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