Why my app returning error on phone

Question

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I have made an app and its having some buttons. When I am using that app in emulator and on my phone then its working fine but when I shared that to some of my friends then on click of some buttons its returning "your app has unfortunately stopped working". What's the error.

What I have tried:

To run my kotlin app on phone.

Posted 21-Jul-20 8:42am

Member 14883729

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Comments

Sandeep Mewara 21-Jul-20 14:57pm

Did you look at: https://codelabs.developers.google.com/codelabs/build-your-first-android-app-kotlin/#0

Member 14883729 21-Jul-20 15:01pm

No actually my problem is some of the button on press give error on phone

David Crow 21-Jul-20 16:13pm

You've provided no useful information to help in tracking down the problem. If the problem happens with some buttons but not others, you need to look at the code behind the buttons that work and compare to the code behind the buttons that do not work. Narrow the problem down by removing as much code and UI components as possible but still be able to reproduce the problem. If you have physical access to the other phone, hook it up to your computer and step through the code using the debugger.

Richard MacCutchan 21-Jul-20 17:18pm

Looking at your other questions on this subject I think you need to spend some more time learning the system and how to debug your application. And, most importantly, if you have a problem with some code then you need to show it to us and explain where the error(s) occurred, including any actual error message. Remember we cannot see your screen.

Member 14883729 22-Jul-20 1:36am

What type of information do u need

Richard MacCutchan 22-Jul-20 3:36am

I don't need any information, you do. Creating applications means understanding your code, knowing how to collect diagnostic information when things go wrong, and using the available debug tools. Just opening a question here without any information on your code or what went wrong is not going to get you very far.

Member 14883729 22-Jul-20 7:20am

Sir when I use my app it automatically stops and return error but before I converted it to apk it was working fine

David Crow 23-Jul-20 11:39am

And you are hoping/expecting someone here, or anywhere for that matter, to be able to figure out why?

Regarding the emulator (AVD) you created, did it match your device or your friends?

Regarding the code that is behind the button that does not work, have you actually looked at it to see what it is doing? Expecting?

Using a phone/emulator to verify whether your code is correct is very bad practice. Alas, that seems to be a common practice these days.

Member 14883729 24-Jul-20 1:44am

Yes sir u r right. Actually this problem is in some devices.I have asked some of my friends whether they have faced this problem or not then they said it is working fine in their device and about the emulator neither it matched my device nor my friend's device

ZurdoDev 22-Jul-20 9:41am

How in the world could we possibly know what is wrong?

Member 14883729 22-Jul-20 9:48am

Hmm that's right

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