Testing App on Physical device or semulator - flutter

I'm working on a flutter App, I have run the code so many times on simulator and even on my smartphone, but after some time when I open the app, it is at the initial stages and after a hot restart the app goes to the final stage(i.e. the changes I've made after that), don't know how to fix the problem.

Related

my flutter app wont start and stuck on loading screen on the phones

I have made a weather app (trained by Angela Yu)
I start it on emulator or while my phone is plugged to pc without problem
but when I make APK file and install it to my phone it wont pass loading screen and stuck in that situation.
please help me.
this is my source code
https://github.com/arvan903/weather_app_flutter
I have added Permission request at the starting
tried reinstall the app several time
using VPN or other networks
clear app data

Flutter app Minimized and Going another app and back to App again app restart some time

In My app i going to one page and Minimize app using device buttons and going to another app (put in to recent app) came back to flutter app some time app restarting, I already using AppLifecycleState for the check state also there state working fine after going to Minimized app state going to inactive & paused also when back to resumed method also called. AppLifecycleState also working fine in debug mode, any one have solution for this issue

Accessing data from core data when in location background mode

I have a app that get launched in the background mode by location region service , I would like to then display a local notification but I need to access core-data to get info for the notification and to query weather it should show the notification. every thing works but the query wont return any data when in the background , If it is not possible to access core-data at that time is there any other way I can store my data so I can read it while running in the background.
I did get this sort of working I think it is more of a issue with xcode 4.2 which is giving me issues I could access the core data file from the background mode only if I run the app from xcode then after I quit running I must open the app on the phone or simulator by clicking the app icon not the run button in xcode then close the app then the next time a run the app on the phone or sim by clicking the app icon not the run button in xcode then the application will access the core-data database. but local notification now wont work on the simulator unless I run form xcode which will then stop core-data access. I guess Im stuck with not being able to build this app till xcode 4.2 is at standard of xcode 3 where I could just get things to work.
Thanks for the comments I think Ive sorted it out , I did not have icloud on my iphone as its older one and I've been testing on simulator and thats is why Ive had this issue so if any one else has this problem the way to fix it is to start and stop your app in the simulator first as when you stop the app by clicking stop in xcode after running it kill the app the wrong way here is the log "9/02/12 12:46:52 PM Application '*App Name**' exited abnormally with signal 9: Killed SpringBoard[5273]" which then stops the app from accessing core data while in background , Ill send apple a bug report but I dont know if its something they want to fix . PS grate Site helpful thanks to anyone who answers Questions :)

iphone app cant be started on device after being killed - works fine on simulator

I want to put an update to my App and I'm encountering heavy issues. When sent to background and being brought back to foreground, the App works fine. However, after killing the process from multitasking (running in the background), the App tries to resume from the point where it left AND it freezes, which means, I cant start the App anymore!!!! I have made no changes to the code, except updating my OS from 4.0 to 4.0.1.
Can anyone help me out on this?
A weird thing is: I cannot reproduce this problem on the simulator, it works just fine there.
I seem to have found the solution. Apple states in the updates: 'When debugging your multitasking enabled app, avoid manually pausing and continuing from the debugger when the application is suspended in the background. Pausing an application that is suspended in the background disrupts proper multitasking behavior until the application is relaunched.' So I tested it on a device for distribution and it seems to work fine, so all you have to do is ignore the debugger - it seems. Best of luck!
My app works fine for me in Debug mode (I'd advice against working with Distribution mode cause of all the hassle of provisioning profile, iTunes sync... and also you can't see the console message in real time).
The reason you can't do anything after killing the app and relaunching it is most likely because you run it directly from XCode (Command + Enter) and the app is still "running". Just click to the Red button to stop the debugging, then you can relaunch the app from the SpringBoard normally. Or just Command + Enter to rebuild it again.

App crashed on app store, not in local version

I ran into a horrifying bug when my app went live. It crashes in a spot where it had been fine.
download from app store using complimentary review code
start app
press start button
CRASH
NOTE: crash reoccurs at every app startup until phone is rebooted - then it disappears
When I try to replicate without the app store
start app
press start button
everything is good.
....
I immediately pulled the app from sale. Right now, I can't replicate at all because I can't download the app.
How to debug?
Download the app from the store onto your device.
Gather the crash reports off of the device manually (
Run them through symbolicatecrash (you did keep the dsym's right?)
Find error, rinse and repeat.