Basic support for transaction history.

app/build.gradle

@@ -98,6 +98,10 @@ dependencies {
     implementation Deps.AndroidX.Lifecycle.LIFECYCLE_RUNTIME_KTX
     implementation Deps.AndroidX.Navigation.FRAGMENT_KTX
     implementation Deps.AndroidX.Navigation.UI_KTX
+    implementation "androidx.room:room-ktx:2.2.3"
+    implementation "androidx.paging:paging-runtime-ktx:2.1.1"
+    implementation 'com.google.guava:guava:27.0.1-android'
+    kapt "androidx.room:room-compiler:2.2.3"
 
     // Google
     implementation Deps.Google.MATERIAL

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

@@ -0,0 +1,38 @@
+package cash.z.ecc.android.ui.detail
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.paging.PagedListAdapter
+import androidx.recyclerview.widget.DiffUtil
+import cash.z.ecc.android.R
+import cash.z.wallet.sdk.demoapp.demos.listtransactions.TransactionViewHolder
+import cash.z.wallet.sdk.entity.ConfirmedTransaction
+
+class TransactionAdapter<T : ConfirmedTransaction> :
+    PagedListAdapter<T, TransactionViewHolder<T>>(
+        object : DiffUtil.ItemCallback<T>() {
+            override fun areItemsTheSame(
+                oldItem: T,
+                newItem: T
+            ) = oldItem.minedHeight == newItem.minedHeight
+
+            override fun areContentsTheSame(
+                oldItem: T,
+                newItem: T
+            ) = oldItem.equals(newItem)
+        }
+    ) {
+
+    override fun onCreateViewHolder(
+        parent: ViewGroup,
+        viewType: Int
+    ) = TransactionViewHolder<T>(
+        LayoutInflater.from(parent.context).inflate(R.layout.item_transaction, parent, false)
+    )
+
+    override fun onBindViewHolder(
+        holder: TransactionViewHolder<T>,
+        position: Int
+    ) = holder.bindTo(getItem(position))
+
+}

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

@@ -0,0 +1,23 @@
+package cash.z.wallet.sdk.demoapp.demos.listtransactions
+
+import android.view.View
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import cash.z.ecc.android.R
+import cash.z.wallet.sdk.entity.ConfirmedTransaction
+import cash.z.wallet.sdk.ext.convertZatoshiToZecString
+import java.text.SimpleDateFormat
+import java.util.*
+
+class TransactionViewHolder<T : ConfirmedTransaction>(itemView: View) : RecyclerView.ViewHolder(itemView) {
+    private val amountText = itemView.findViewById<TextView>(R.id.text_transaction_amount)
+    private val timeText = itemView.findViewById<TextView>(R.id.text_transaction_timestamp)
+    private val formatter = SimpleDateFormat("M/d h:mma", Locale.getDefault())
+
+    fun bindTo(transaction: T?) {
+        amountText.text = transaction?.value.convertZatoshiToZecString()
+        timeText.text =
+            if (transaction == null || transaction?.blockTimeInSeconds == 0L) "Pending"
+            else formatter.format(transaction.blockTimeInSeconds * 1000L)
+    }
+}

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

@@ -4,6 +4,8 @@ import android.content.Intent
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
+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.annotation.FragmentScope
@@ -11,13 +13,19 @@ 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.twig
 import dagger.Module
 import dagger.android.ContributesAndroidInjector
+import kotlinx.coroutines.flow.collect
+import kotlinx.coroutines.launch
 import okio.Okio
 
 
 class WalletDetailFragment : BaseFragment<FragmentDetailBinding>() {
 
+    private lateinit var adapter: TransactionAdapter<ConfirmedTransaction>
+
     override fun inflate(inflater: LayoutInflater): FragmentDetailBinding =
         FragmentDetailBinding.inflate(inflater)
 
@@ -36,10 +44,23 @@ class WalletDetailFragment : BaseFragment<FragmentDetailBinding>() {
         }
     }
 
-    private fun onSendFeedback() {
-        mainActivity?.showSnackbar("Feedback not yet implemented.")
+    override fun onResume() {
+        super.onResume()
+        initTransactionUI()
     }
 
+    private fun initTransactionUI() {
+        binding.recyclerTransactions.layoutManager =
+            LinearLayoutManager(activity, LinearLayoutManager.VERTICAL, false)
+        adapter = TransactionAdapter()
+        resumedScope.launch {
+            mainActivity?.synchronizer?.receivedTransactions?.collect { onTransactionsUpdated(it) }
+        }
+        binding.recyclerTransactions.adapter = adapter
+    }
+
+    private fun onSendFeedback() {
+        mainActivity?.showSnackbar("Feedback not yet implemented.")
     }
 
     private fun onViewLogs() {
@@ -63,6 +84,11 @@ class WalletDetailFragment : BaseFragment<FragmentDetailBinding>() {
         mainActivity?.navController?.navigate(R.id.action_nav_detail_to_backup_wallet)
     }
 
+    private fun onTransactionsUpdated(transactions: PagedList<ConfirmedTransaction>) {
+        twig("got a new paged list of transactions")
+        adapter.submitList(transactions)
+    }
+
     private fun loadLogFileAsText(): String? {
         val feedbackFile: FeedbackFile =
             mainActivity?.feedbackCoordinator?.findObserver() ?: return null

app/src/main/res/drawable/ic_receive.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF66BB6A" android:pathData="M20,5.41L18.59,4 7,15.59V9H5v10h10v-2H8.41z"/>
+</vector>

app/src/main/res/layout/fragment_detail.xml

@@ -4,6 +4,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    xmlns:tools="http://schemas.android.com/tools"
     android:background="@drawable/background_home">
 
     <!--            -->
@@ -76,6 +77,21 @@
         app:layout_constraintEnd_toEndOf="@id/guideline_keyline_end"
         app:layout_constraintTop_toTopOf="@id/back_button" />
 
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler_transactions"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_marginTop="12dp"
+        app:layout_constraintBottom_toTopOf="@+id/guideline_bottom_buttons"
+        app:layout_constraintStart_toStartOf="@id/guideline_keyline_start"
+        app:layout_constraintEnd_toEndOf="@id/guideline_keyline_end"
+        app:layout_constraintTop_toBottomOf="@id/button_backup"
+        tools:itemCount="15"
+        tools:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+        tools:listitem="@layout/item_transaction"
+        tools:orientation="vertical" />
+
     <View
         android:id="@+id/text_banner_message"
         android:layout_width="0dp"

app/src/main/res/layout/item_transaction.xml

@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/container_transaction"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="@color/background_banner"
+    android:elevation="1dp"
+    android:paddingTop="8dp"
+    android:paddingBottom="8dp"
+    android:paddingEnd="10dp"
+    android:paddingStart="8dp"
+    android:layout_marginTop="4dp"
+    tools:ignore="RtlSymmetry">
+
+    <ImageView
+        android:id="@+id/image_transaction_type"
+        android:layout_width="40dp"
+        android:layout_height="40dp"
+        app:srcCompat="@drawable/ic_receive"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/text_transaction_timestamp"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:textSize="14sp"
+        android:textStyle="bold"
+        app:layout_constraintBottom_toTopOf="@id/text_transaction_address"
+        app:layout_constraintStart_toEndOf="@id/image_transaction_type"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_chainStyle="packed"
+        tools:text="8/23 3:24pm" />
+
+    <TextView
+        android:id="@+id/text_transaction_address"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:textSize="12sp"
+        android:paddingEnd="16dp"
+        android:maxLines="1"
+        android:ellipsize="end"
+        app:layout_constraintEnd_toStartOf="@id/text_transaction_amount"
+        app:layout_constraintStart_toStartOf="@id/text_transaction_timestamp"
+        app:layout_constraintTop_toBottomOf="@id/text_transaction_timestamp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        android:text="funds received" />
+
+    <TextView
+        android:id="@+id/text_transaction_amount"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        tools:text="+ 4.244"
+        android:textColor="@color/colorPrimary"
+        android:textSize="20sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>