koin | pragmatic lightweight dependency injection framework | Android library
kandi X-RAY | koin Summary
kandi X-RAY | koin Summary
A pragmatic lightweight dependency injection framework for Kotlin developers. Koin is a DSL, a light container and a pragmatic API.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of koin
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Trending Discussions on koin
QUESTION
I'm following the docs as stated her https://insert-koin.io/docs/reference/koin-android/viewmodel/#viewmodel-and-injection-parameters
The only difference is my viewmodel has 2 (besides Koin injected repos) parameters of the same class String. Lets call them stringA = "red" and stringB = "blue".
When I pass the parameters these are clearly defined differently. But when the viewmodel is instantiated, I log the strings and both have the value of stringA, "red".
I can wrap them both into a data class, but ideally I would want them separately, any idea of what is wrong or what should be done?
Koin Module
...ANSWER
Answered 2022-Mar-30 at 12:26I had the same problem, and luckily found the solution.
params.get() resolves the parameters by type. Since both are strings, it will match the first one in both cases. It works implicitly only if the types are different (e. g. int and String).
The solution is to index the parameters instead:
stringA = params[0], stringB = params[1]
Longer snippet for context:
QUESTION
I am trying to use Koin to inject my viewModel (which has some dependencies as well) like this:
I don't understand why it cannot find getViewModel when I have the following import:
I am using this Koin version: implementation "io.insert-koin:koin-android:$koin_version"
where $koin_version = '3.2.0-beta-1'
Any thoughts why my import is ignored here?
...ANSWER
Answered 2022-Mar-29 at 15:56You're using a wrong import, you should use:
QUESTION
I always check the implementation of the things I use.
Currently I'm using an injection library that doesn't support suspensable functions (Koin), so, only (even if discouraged) for bootstrapping the app, I'm using runBlocking some times.
In order to have richer logs, I'm enriching the coroutine context with some info, yet that info is lost in most context changes (launch, async, and runBlocking among others).
Specially, given the fact that non-suspend methods don't have access to a CoroutineContext, I'm super curious where does runBlocking gets it from.
You can use runBlocking like:
ANSWER
Answered 2022-Feb-25 at 23:34By default runBlocking() starts with an empty coroutine context.
The fact that the context doesn't have a default value is indeed confusing and strange. I think (but I'm not 100% sure) this is because by ctrl+clicking on runBlocking() we go the implementation, so actual definition. But the code is compiled against the expect declaration. I didn't find an easy way to see expect declaration directly in IntelliJ, but it can be found here:
QUESTION
My app has a splash activity where i check for login and start Koin.
The problem is, when i go to another activity, put my app on recents (so android basicaly kills it) and go back, android try to open the activity again but Koin is not started so it crashes.
Am i doing something wrong or should i try to start Koin on every activity that uses it?
Here is how i'm starting Koin:
...ANSWER
Answered 2022-Feb-12 at 20:18Am i doing something wrong or should i try to start Koin on every activity that uses it?
You should start koin in your app's Application class like mentioned in the documentation - the Application will be created before any activity or other component is launched.
QUESTION
I have a KMM application in which the android target uses Jetpack Compose. I am getting the following error when I try to use a drawable resource:
e: [...]/OnboardingScreen.kt: (33, 46): Unresolved reference: drawable
This is the result of trying to access a drawable via painterResource(id = R.drawable.ic_icon).
I have tried the following things to fix the issue:
- Clean and build the project
- Invalidate cache and restart
- Fix all warnings when executing
./gradlew assembleDebug - The static R class is correctly imported
Nothing of the above solves the problem.
This is my build.gradle.kts of the android module:
...ANSWER
Answered 2022-Jan-05 at 22:19Denny Kurniawan's comment above pointed me in the right direction. I had a similar problem after changing the name of my project. At the top of your 'OnboardingScreen.kt' file, check to see if the full 'package' name matches your actual project's name, e.g. "package com.android.application".
If the package name listed in 'OnboardingScreen.kt' is not the same as your actual project's name, then the static R class is probably not being imported correctly and, hence, this error.
In other words, the full package name in 'OnboardingScreen.kt' should match the name of the folder shown under 'app->src->main->java'. Hope this helps someone as it did me.
QUESTION
for now the type = "number" in TextFiled Material-UI
accept number(0-9) coma (,) and double dash(--)
and, I just need one dash(-)
I've seen to insert pattern in inputProps, but it seems not working..
Any help is greatly appreciated
Thank you
...ANSWER
Answered 2022-Jan-13 at 08:53import * as React from 'react';
import NumberInput from 'material-ui-number-input';
import bind from 'bind-decorator';
class Demo extends React.Component {
setValue(value) {
this.setState({ value: value });
}
@bind
onChange(event, value) {
this.setValue(value);
}
@bind
onValid(valid) {
this.setState({ valid: valid });
}
@bind
onError(error) {
this.setState({ errorText: error !== 'none' ? 'Error: ' + error : '' });
}
constructor(props) {
super(props);
this.state = { value: '', valid: 0, errorText: '' };
}
render() {
const { value, valid, errorText } = this.state;
return (
);
}
}
QUESTION
I want to create a Splash screen and show it as long as the authentication state of the user gets determined. I have a global singleton called AuthStateController which holds my state and some extra functions.
But because the installSplashScreen function is outside of a composable I can't use Koin to inject the AuthStateController class to get access to my loading state.
Below is my MainActivity with all my Koin modules. And the installSplashScreen function.
ANSWER
Answered 2022-Jan-11 at 14:02I think you can startKoin inside the Application
MainApplication.kt
QUESTION
I currently have two NavGraphs in my app, one for authentication routes, like login and registration and one for the home routes when logged in.
I currently need to pass the navController as a parameter in every composable when I want to use it. That is definitely not scalable and so I'm wondering if it's possible to make it injectable so that I can just request it through a DI framework like Koin. I'm currently using Koin in my App so it would be good if I can just use it's dependency injection tools, to inject a navController as a singleton.
I currently create the navController inside the MainActifity:
ANSWER
Answered 2022-Jan-07 at 03:51For easy testing/previewing, it's recommended to pass only handlers instead of the nav controller itself, and do all real navigation inside SetupNavGraph when a handler is called. More info can be found here.
If it doesn't suits you, you can create your own compositional local, like this:
QUESTION
I was reading the data layer guide by Google and in the linked segment, they have the following snippet:
...ANSWER
Answered 2022-Jan-01 at 16:35Thanks to @ADM's link from the comments, I managed to use a named property as suggested here.
In my case, I first create the named property for the IO Dispatcher, then the SubjectsLocalDataSource class gets its CoroutineDispatcher dependency using the get(named("IODispatcher")) call and finally, the SubjectsRepository gets its data source dependency using the classic get() call.
SubjectsLocalDataSource declaration:
QUESTION
I am trying to build a KMP library targeting iOS, Android, JS(Browser), Mac, Windows and Linux. For now I am only using Ktor and SQLDelight as a dependency. But getting the following issue in nativeMain's actual implementation while creating driver for SQLDelight
While the same code doesn't give any issue for iOS main which is also using the same NativeSqliteDriver (I need them separately since Ktor client for iOS and desktop platforms are separate).
Following is my build.gradle.kts
ANSWER
Answered 2021-Dec-22 at 16:45So it seems the issue was somewhat due to same dependency being added to the build gradle twice and it's corresponding code being added twice as well. To solve the same I had to make a separate source set like the following
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