Kotlin on Android alters library variable instead of defining a new variable










1














today I started a new Android project with Kotlin support. But as soon as I launch it on my phone, it is disconnected from Wi-Fi (Application has INTERNET and ACCESS_NETWORK_STATE permissons but no socket code yet). Here is the code:



package org.arch.cast

import android.os.Bundle
import android.support.v7.app.AppCompatActivity

class MainActivity : AppCompatActivity()

internal var dummy = 10
internal var channel = 20

override fun onCreate(savedInstanceState: Bundle?)
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)




After experimenting a bit I noticed that one of my variables wasn't marked as "not used" even though it was not used.



Here is the screenshot of variables



This is the only class the project contains right now, no other service or activity exists so nothing is referring channel variable anywhere in the project. I also added a dummy variable to show that it is marked as not used. I noticed that the problem was its name and it was actually not defining it but altering another variable from a library I didn't import. And since it was related to Wi-Fi, phone was disconnecting.



Here is the screenshot of autocomplete



Sure everything works when I change the variable name but this should not be the solution, it is only a temporary workaround. So the question is, how can I prevent Kotlin from altering the variable and make it actually define it in my class?










share|improve this question























  • Your code does define your own variable, and is not modifying anything. The completion suggestion shows that there is a library type that you can use, but since you're initializing the variable with the value of 10, its type will be Int, and not the Channel type shown in the autocomplete popup. The wifi disconnections are not caused by your code.
    – yole
    Nov 11 '18 at 21:44










  • @yole The thing is, simple socket code also works if I change the variable name, but doesn't work if I keep it as "channel" even though I dont use it anywhere. var socket = Socket("10.0.0.10", 1010) on another thread.
    – Israphel
    Nov 11 '18 at 21:49











  • Can you post the code as code and not as image please? Makes it easier to try it.
    – leonardkraemer
    Nov 11 '18 at 21:53











  • @leonardkraemer sure, i added the code now
    – Israphel
    Nov 11 '18 at 21:57






  • 1




    @Egor setChannel and getChannel was what i meant with "altering" since Kotlin changes obj.setChannel(10) to obj.channel=10. But yes, as i experiment more, it seems coincidential to me too, it started workin when it is named "channel" now. I am asking since i am new to SO, do i mark it as solved now, or simply delete the question since it was a not a valid question?
    – Israphel
    Nov 11 '18 at 22:13















1














today I started a new Android project with Kotlin support. But as soon as I launch it on my phone, it is disconnected from Wi-Fi (Application has INTERNET and ACCESS_NETWORK_STATE permissons but no socket code yet). Here is the code:



package org.arch.cast

import android.os.Bundle
import android.support.v7.app.AppCompatActivity

class MainActivity : AppCompatActivity()

internal var dummy = 10
internal var channel = 20

override fun onCreate(savedInstanceState: Bundle?)
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)




After experimenting a bit I noticed that one of my variables wasn't marked as "not used" even though it was not used.



Here is the screenshot of variables



This is the only class the project contains right now, no other service or activity exists so nothing is referring channel variable anywhere in the project. I also added a dummy variable to show that it is marked as not used. I noticed that the problem was its name and it was actually not defining it but altering another variable from a library I didn't import. And since it was related to Wi-Fi, phone was disconnecting.



Here is the screenshot of autocomplete



Sure everything works when I change the variable name but this should not be the solution, it is only a temporary workaround. So the question is, how can I prevent Kotlin from altering the variable and make it actually define it in my class?










share|improve this question























  • Your code does define your own variable, and is not modifying anything. The completion suggestion shows that there is a library type that you can use, but since you're initializing the variable with the value of 10, its type will be Int, and not the Channel type shown in the autocomplete popup. The wifi disconnections are not caused by your code.
    – yole
    Nov 11 '18 at 21:44










  • @yole The thing is, simple socket code also works if I change the variable name, but doesn't work if I keep it as "channel" even though I dont use it anywhere. var socket = Socket("10.0.0.10", 1010) on another thread.
    – Israphel
    Nov 11 '18 at 21:49











  • Can you post the code as code and not as image please? Makes it easier to try it.
    – leonardkraemer
    Nov 11 '18 at 21:53











  • @leonardkraemer sure, i added the code now
    – Israphel
    Nov 11 '18 at 21:57






  • 1




    @Egor setChannel and getChannel was what i meant with "altering" since Kotlin changes obj.setChannel(10) to obj.channel=10. But yes, as i experiment more, it seems coincidential to me too, it started workin when it is named "channel" now. I am asking since i am new to SO, do i mark it as solved now, or simply delete the question since it was a not a valid question?
    – Israphel
    Nov 11 '18 at 22:13













1












1








1







today I started a new Android project with Kotlin support. But as soon as I launch it on my phone, it is disconnected from Wi-Fi (Application has INTERNET and ACCESS_NETWORK_STATE permissons but no socket code yet). Here is the code:



package org.arch.cast

import android.os.Bundle
import android.support.v7.app.AppCompatActivity

class MainActivity : AppCompatActivity()

internal var dummy = 10
internal var channel = 20

override fun onCreate(savedInstanceState: Bundle?)
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)




After experimenting a bit I noticed that one of my variables wasn't marked as "not used" even though it was not used.



Here is the screenshot of variables



This is the only class the project contains right now, no other service or activity exists so nothing is referring channel variable anywhere in the project. I also added a dummy variable to show that it is marked as not used. I noticed that the problem was its name and it was actually not defining it but altering another variable from a library I didn't import. And since it was related to Wi-Fi, phone was disconnecting.



Here is the screenshot of autocomplete



Sure everything works when I change the variable name but this should not be the solution, it is only a temporary workaround. So the question is, how can I prevent Kotlin from altering the variable and make it actually define it in my class?










share|improve this question















today I started a new Android project with Kotlin support. But as soon as I launch it on my phone, it is disconnected from Wi-Fi (Application has INTERNET and ACCESS_NETWORK_STATE permissons but no socket code yet). Here is the code:



package org.arch.cast

import android.os.Bundle
import android.support.v7.app.AppCompatActivity

class MainActivity : AppCompatActivity()

internal var dummy = 10
internal var channel = 20

override fun onCreate(savedInstanceState: Bundle?)
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)




After experimenting a bit I noticed that one of my variables wasn't marked as "not used" even though it was not used.



Here is the screenshot of variables



This is the only class the project contains right now, no other service or activity exists so nothing is referring channel variable anywhere in the project. I also added a dummy variable to show that it is marked as not used. I noticed that the problem was its name and it was actually not defining it but altering another variable from a library I didn't import. And since it was related to Wi-Fi, phone was disconnecting.



Here is the screenshot of autocomplete



Sure everything works when I change the variable name but this should not be the solution, it is only a temporary workaround. So the question is, how can I prevent Kotlin from altering the variable and make it actually define it in my class?







android android-studio kotlin






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 11 '18 at 22:02









leonardkraemer

3,04811532




3,04811532










asked Nov 11 '18 at 21:40









Israphel

113




113











  • Your code does define your own variable, and is not modifying anything. The completion suggestion shows that there is a library type that you can use, but since you're initializing the variable with the value of 10, its type will be Int, and not the Channel type shown in the autocomplete popup. The wifi disconnections are not caused by your code.
    – yole
    Nov 11 '18 at 21:44










  • @yole The thing is, simple socket code also works if I change the variable name, but doesn't work if I keep it as "channel" even though I dont use it anywhere. var socket = Socket("10.0.0.10", 1010) on another thread.
    – Israphel
    Nov 11 '18 at 21:49











  • Can you post the code as code and not as image please? Makes it easier to try it.
    – leonardkraemer
    Nov 11 '18 at 21:53











  • @leonardkraemer sure, i added the code now
    – Israphel
    Nov 11 '18 at 21:57






  • 1




    @Egor setChannel and getChannel was what i meant with "altering" since Kotlin changes obj.setChannel(10) to obj.channel=10. But yes, as i experiment more, it seems coincidential to me too, it started workin when it is named "channel" now. I am asking since i am new to SO, do i mark it as solved now, or simply delete the question since it was a not a valid question?
    – Israphel
    Nov 11 '18 at 22:13
















  • Your code does define your own variable, and is not modifying anything. The completion suggestion shows that there is a library type that you can use, but since you're initializing the variable with the value of 10, its type will be Int, and not the Channel type shown in the autocomplete popup. The wifi disconnections are not caused by your code.
    – yole
    Nov 11 '18 at 21:44










  • @yole The thing is, simple socket code also works if I change the variable name, but doesn't work if I keep it as "channel" even though I dont use it anywhere. var socket = Socket("10.0.0.10", 1010) on another thread.
    – Israphel
    Nov 11 '18 at 21:49











  • Can you post the code as code and not as image please? Makes it easier to try it.
    – leonardkraemer
    Nov 11 '18 at 21:53











  • @leonardkraemer sure, i added the code now
    – Israphel
    Nov 11 '18 at 21:57






  • 1




    @Egor setChannel and getChannel was what i meant with "altering" since Kotlin changes obj.setChannel(10) to obj.channel=10. But yes, as i experiment more, it seems coincidential to me too, it started workin when it is named "channel" now. I am asking since i am new to SO, do i mark it as solved now, or simply delete the question since it was a not a valid question?
    – Israphel
    Nov 11 '18 at 22:13















Your code does define your own variable, and is not modifying anything. The completion suggestion shows that there is a library type that you can use, but since you're initializing the variable with the value of 10, its type will be Int, and not the Channel type shown in the autocomplete popup. The wifi disconnections are not caused by your code.
– yole
Nov 11 '18 at 21:44




Your code does define your own variable, and is not modifying anything. The completion suggestion shows that there is a library type that you can use, but since you're initializing the variable with the value of 10, its type will be Int, and not the Channel type shown in the autocomplete popup. The wifi disconnections are not caused by your code.
– yole
Nov 11 '18 at 21:44












@yole The thing is, simple socket code also works if I change the variable name, but doesn't work if I keep it as "channel" even though I dont use it anywhere. var socket = Socket("10.0.0.10", 1010) on another thread.
– Israphel
Nov 11 '18 at 21:49





@yole The thing is, simple socket code also works if I change the variable name, but doesn't work if I keep it as "channel" even though I dont use it anywhere. var socket = Socket("10.0.0.10", 1010) on another thread.
– Israphel
Nov 11 '18 at 21:49













Can you post the code as code and not as image please? Makes it easier to try it.
– leonardkraemer
Nov 11 '18 at 21:53





Can you post the code as code and not as image please? Makes it easier to try it.
– leonardkraemer
Nov 11 '18 at 21:53













@leonardkraemer sure, i added the code now
– Israphel
Nov 11 '18 at 21:57




@leonardkraemer sure, i added the code now
– Israphel
Nov 11 '18 at 21:57




1




1




@Egor setChannel and getChannel was what i meant with "altering" since Kotlin changes obj.setChannel(10) to obj.channel=10. But yes, as i experiment more, it seems coincidential to me too, it started workin when it is named "channel" now. I am asking since i am new to SO, do i mark it as solved now, or simply delete the question since it was a not a valid question?
– Israphel
Nov 11 '18 at 22:13




@Egor setChannel and getChannel was what i meant with "altering" since Kotlin changes obj.setChannel(10) to obj.channel=10. But yes, as i experiment more, it seems coincidential to me too, it started workin when it is named "channel" now. I am asking since i am new to SO, do i mark it as solved now, or simply delete the question since it was a not a valid question?
– Israphel
Nov 11 '18 at 22:13












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