Facing issues with adding sharedPreferences and the sharedPrefrencesEditor to Koin module - dependency-injection

Question

I recently got to know about Koin.
I was trying to migrate my current project from Dagger to Koin.
In doing so, I faced an issue with injecting sharedPreferences and sharedPreferences editor in the activities.
Following is the code I used in Dagger to inject sharedPreferences and sharedPreferences editor ->
#Provides
#AppScope
fun getSharedPreferences(context: Context): SharedPreferences =
context.getSharedPreferences("default", Context.MODE_PRIVATE)
#SuppressLint("CommitPrefEdits")
#Provides
#AppScope
fun getSharedPrefrencesEditor(context: Context): SharedPreferences.Editor =
getSharedPreferences(context).edit()
I tried to convert the above mentioned code to Koin like this ->
val appModule = module {
val ctx by lazy{ androidApplication() }
single {
ctx.getSharedPreferences("default", Context.MODE_PRIVATE)
}
single {
getSharedPreferences(ctx).edit()
}
}
I also tried to implement it this way ->
val appModule = module {
single {
androidApplication().getSharedPreferences("default", Context.MODE_PRIVATE)
}
single {
getSharedPreferences(androidApplication()).edit()
}
}
Now I inject the dependencies in my activity like this ->
val sharedPreferences: SharedPreferences by inject()
val sharedPreferencesEditor: SharedPreferences.Editor by inject()
But as soon as I launch my app and try to use them, I am not able to read or write anything to the preferences.
I am a bit confused as to what is wrong with the code.
Kindly help me figure this out.

Answer 1

I figured out a way to handle this.
Hope this helps someone looking for the same issue.
Here is the solution to the problem:
The koin module definition will be like this ->
val appModule = module {
single{
getSharedPrefs(androidApplication())
}
single<SharedPreferences.Editor> {
getSharedPrefs(androidApplication()).edit()
}
}
fun getSharedPrefs(androidApplication: Application): SharedPreferences{
return androidApplication.getSharedPreferences("default", android.content.Context.MODE_PRIVATE)
}
Just to be clear that the above code is in the file modules.kt
Now you can easily inject the created instances like ->
private val sharedPreferences: SharedPreferences by inject()
private val sharedPreferencesEditor: SharedPreferences.Editor by inject()
Make sure the above instances are val instead of var otherwise the inject() method will not work as this is lazy injection.