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androidkotlindependency-injectionkoinkoin-scope

How to inject view model with scope using sharedview model koin android


need little bit clarity on one thing, right now working on a flow where I've two view model and one is dependent on other , to handle that thing I tried injecting both view models in my Base Activity the problem I faced, with this approach. Every time when I try to access those view model, Base Activity was returning me new instances, is there any way I can manage scope of that view model so I can easily access its properties without adding extra Api calls.

Module Class

    val homeModule= module {
      
        single { HomeDispatcher(get(), get()) }
        viewModel { HomeViewModel (get()) }
    }

**Main Activity**

    import org.koin.android.viewmodel.ext.android.viewModel

        class NotificationActivity : BaseActivity() {
        
           private val viewModel: HomeViewModel by inject()
        
           private val viewModel: HomeViewModel by viewModel()
    }
    
    
    
        class NotificationsFragment : BaseFragment() {
        
           private val viewModel: HomeViewModel by viewModels({requireActivity()})
    
           private val viewModelx: HomeViewModel by activityViewModels
    
    
        
        }

> by using viewModels({requireActivity()}) getting instance not found.

Update for Hilt

   implementation "androidx.activity:activity-ktx:1.2.0"

   private val viewModelx: HomeViewModel by viewModels

the above-mentioned library has view models for injecting view models directly lazily.


Solution

  • import org.koin.android.viewmodel.ext.android.viewModel
    import org.koin.android.viewmodel.ext.android.sharedViewModel 
    
    private val viewModel: HomeViewModel by viewModel()
    

    so solved this issue by using viewModel() in activity and sharedViewModel<MyViewModel>() in fragment class