why I can't access my application inside my AndroidViewModel class?

Question

I am new in Android development especially using MVVM pattern. I need context in my viewModel, so I use AndroidViewModel to get context through application, but I don't know why I can't access the application

class CreateEventViewModel(application: Application) : AndroidViewModel(application) {

    fun checkIfItHasInternetConnection() {

        if (InternetConnection.checkConnection(application)) {

        }

    }

}

make your constructor parameter `private val` – Vivek Mishra Mar 17 '20 at 10:01 — Vivek Mishra, Mar 17 '20 at 10:01
Hey checkout my answer hope this may help you @Alexa – InsaneCat Mar 17 '20 at 10:08 — InsaneCat, Mar 17 '20 at 10:08
You forgot the `private val` – EpicPandaForce Mar 17 '20 at 10:10 — EpicPandaForce, Mar 17 '20 at 10:10

score 1 · Accepted Answer · answered Mar 17 '20 at 10:00

1

Just try to call getApplication<Application>(). This is a method in AndroidViewModel to get the application :) No need to store application as a field.

answered Mar 17 '20 at 10:00

Zholoth

86
3

score 0 · Answer 2 · answered Mar 17 '20 at 09:58

use private val application:Application in primary constructor

below example : try this way

class CreateEventViewModel(private val application: Application) : AndroidViewModel(application) {

fun checkIfItHasInternetConnection() {

    if (InternetConnection.checkConnection(application)) {

    }

}
}

score 0 · Answer 3 · answered Mar 17 '20 at 10:02

0

Try this

class CreateEventViewModel(private val application: Application) : AndroidViewModel(application) {

    fun checkIfItHasInternetConnection() {

        if (InternetConnection.checkConnection(application)) {

        }

    }

}

answered Mar 17 '20 at 10:02

theanilpaudel

3,348
8
39
67

score 0 · Answer 4 · answered Mar 17 '20 at 10:02

0

updated code:

data class CreateEventViewModel(val application: Application) : AndroidViewModel(application) {

    fun checkIfItHasInternetConnection() {

        if (InternetConnection.checkConnection(application)) {

        }

    }

}

answered Mar 17 '20 at 10:02

naXa stands with Ukraine

35,493
19
190
259

why I can't access my application inside my AndroidViewModel class?

4 Answers4