Leveraged new ability to safely inject Synchronizers.

This was a key benefit of the refactor for #39.

app/src/main/java/cash/z/ecc/android/ui/detail/WalletDetailFragment.kt

@@ -8,19 +8,21 @@ import androidx.paging.PagedList
 import androidx.recyclerview.widget.LinearLayoutManager
 import cash.z.ecc.android.R
 import cash.z.ecc.android.databinding.FragmentDetailBinding
+import cash.z.ecc.android.di.viewmodel.viewModel
 import cash.z.ecc.android.ext.onClick
 import cash.z.ecc.android.ext.onClickNavUp
 import cash.z.ecc.android.feedback.FeedbackFile
 import cash.z.ecc.android.ui.base.BaseFragment
 import cash.z.wallet.sdk.entity.ConfirmedTransaction
+import cash.z.wallet.sdk.ext.collectWith
 import cash.z.wallet.sdk.ext.twig
-import kotlinx.coroutines.flow.collect
-import kotlinx.coroutines.launch
 import okio.Okio
 
 
 class WalletDetailFragment : BaseFragment<FragmentDetailBinding>() {
 
+    private val viewModel: WalletDetailViewModel by viewModel()
+
     private lateinit var adapter: TransactionAdapter<ConfirmedTransaction>
 
     override fun inflate(inflater: LayoutInflater): FragmentDetailBinding =
@@ -50,9 +52,7 @@ class WalletDetailFragment : BaseFragment<FragmentDetailBinding>() {
         binding.recyclerTransactions.layoutManager =
             LinearLayoutManager(activity, LinearLayoutManager.VERTICAL, false)
         adapter = TransactionAdapter()
-        resumedScope.launch {
-            mainActivity?.synchronizer?.clearedTransactions?.collect { onTransactionsUpdated(it) }
-        }
+        viewModel.transactions.collectWith(resumedScope) { onTransactionsUpdated(it) }
         binding.recyclerTransactions.adapter = adapter
     }
 

app/src/main/java/cash/z/ecc/android/ui/detail/WalletDetailViewModel.kt

@@ -0,0 +1,19 @@
+package cash.z.ecc.android.ui.detail
+
+import androidx.lifecycle.ViewModel
+import cash.z.wallet.sdk.Synchronizer
+import cash.z.wallet.sdk.ext.twig
+import javax.inject.Inject
+
+class WalletDetailViewModel @Inject constructor() : ViewModel() {
+
+    @Inject
+    lateinit var synchronizer: Synchronizer
+
+    val transactions get() = synchronizer.clearedTransactions
+
+    override fun onCleared() {
+        super.onCleared()
+        twig("WalletDetailViewModel cleared!")
+    }
+}

app/src/main/java/cash/z/ecc/android/ui/receive/ReceiveFragment.kt

@@ -10,6 +10,7 @@ import android.view.View
 import android.widget.TextView
 import cash.z.android.qrecycler.QRecycler
 import cash.z.ecc.android.databinding.FragmentReceiveBinding
+import cash.z.ecc.android.di.viewmodel.viewModel
 import cash.z.ecc.android.ext.onClickNavUp
 import cash.z.ecc.android.ui.base.BaseFragment
 import cash.z.ecc.android.ui.util.AddressPartNumberSpan
@@ -19,13 +20,16 @@ import kotlinx.coroutines.launch
 import kotlin.math.roundToInt
 
 class ReceiveFragment : BaseFragment<FragmentReceiveBinding>() {
-    override fun inflate(inflater: LayoutInflater): FragmentReceiveBinding =
-        FragmentReceiveBinding.inflate(inflater)
+
+    private val viewModel: ReceiveViewModel by viewModel()
 
     lateinit var qrecycler: QRecycler
 
     lateinit var addressParts: Array<TextView>
 
+    override fun inflate(inflater: LayoutInflater): FragmentReceiveBinding =
+        FragmentReceiveBinding.inflate(inflater)
+
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         addressParts = arrayOf(
@@ -49,9 +53,7 @@ class ReceiveFragment : BaseFragment<FragmentReceiveBinding>() {
     override fun onResume() {
         super.onResume()
         resumedScope.launch {
-            mainActivity?.synchronizer?.getAddress()?.let { address ->
-                onAddressLoaded(address)
-            }
+            onAddressLoaded(viewModel.getAddress())
         }
     }
 

app/src/main/java/cash/z/ecc/android/ui/receive/ReceiveViewModel.kt

@@ -0,0 +1,19 @@
+package cash.z.ecc.android.ui.receive
+
+import androidx.lifecycle.ViewModel
+import cash.z.wallet.sdk.Synchronizer
+import cash.z.wallet.sdk.ext.twig
+import javax.inject.Inject
+
+class ReceiveViewModel @Inject constructor() : ViewModel() {
+
+    @Inject
+    lateinit var synchronizer: Synchronizer
+
+    suspend fun getAddress(): String = synchronizer.getAddress()
+
+    override fun onCleared() {
+        super.onCleared()
+        twig("WalletDetailViewModel cleared!")
+    }
+}

app/src/main/java/cash/z/ecc/android/ui/send/SendFinalFragment.kt

@@ -46,7 +46,7 @@ class SendFinalFragment : BaseFragment<FragmentSendFinalBinding>() {
     override fun onAttach(context: Context) {
         super.onAttach(context)
         mainActivity?.apply {
-            sendViewModel.send(synchronizer).onEach {
+            sendViewModel.send().onEach {
                 onPendingTxUpdated(it)
             }.launchIn(mainActivity?.lifecycleScope!!)
         }