Hello fellow coders!
I am new in app developing and trying to build pretty much my first Android app in a school project.
However I faced some problems and I would like to ask help from people who might know better.
My app uses TCPClient to make a connection to a host server. While I was testing the app in debug with different devices there was no problems with connecting. However after I made a release version and tried it on my device for some reason my app didn't want to connect and it just plain goes down.
After a while I found out how I can check logs to see what the problem is. Apparently it was some kind of socket exception that crashes the app. In debug the app worked though. So I searched some more info and apparently permission to use Internet is automatically on in debug and not in release. So I added that permission and tried to make a new apk file. That still didn't work and I got the same error (even though I am pretty sure that is the reason it didn't work).
Now after reading a bit more about apk files I guess making a new one isn't as easy as I thought. When I made the first one I followed Xamarin's instructions from here: https://docs.microsoft.com/en-us/xamarin/android/deploy-test/release-prep/?tabs=windows and everything went well.
But after making the second (and couple more after that) I realized that it didn't ask the apps keystore password (I guess you should put that every time you make a new apk file). I used the ad hoc route, because I am not intending to put the app in store (the app is for the project client). I just put the apk file to my device and installed it that way.
So I would like to know what exactly should I know if I make a new apk file from a project I have modified somehow? Do I need to make a new version number or something like that to make it work???
I am new in app developing and trying to build pretty much my first Android app in a school project.
However I faced some problems and I would like to ask help from people who might know better.
My app uses TCPClient to make a connection to a host server. While I was testing the app in debug with different devices there was no problems with connecting. However after I made a release version and tried it on my device for some reason my app didn't want to connect and it just plain goes down.
After a while I found out how I can check logs to see what the problem is. Apparently it was some kind of socket exception that crashes the app. In debug the app worked though. So I searched some more info and apparently permission to use Internet is automatically on in debug and not in release. So I added that permission and tried to make a new apk file. That still didn't work and I got the same error (even though I am pretty sure that is the reason it didn't work).
Now after reading a bit more about apk files I guess making a new one isn't as easy as I thought. When I made the first one I followed Xamarin's instructions from here: https://docs.microsoft.com/en-us/xamarin/android/deploy-test/release-prep/?tabs=windows and everything went well.
But after making the second (and couple more after that) I realized that it didn't ask the apps keystore password (I guess you should put that every time you make a new apk file). I used the ad hoc route, because I am not intending to put the app in store (the app is for the project client). I just put the apk file to my device and installed it that way.
So I would like to know what exactly should I know if I make a new apk file from a project I have modified somehow? Do I need to make a new version number or something like that to make it work???
