[UPDATE] [#102] Refined list item with author info.

Author: hossain-khan

app/src/main/java/com/hossainkhan/android/demo/data/FirestoreDateFormatter.kt

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2019 Hossain Khan
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hossainkhan.android.demo.data
+
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+
+object FirestoreDateFormatter {
+    fun date(timestamp: Long): String {
+        val sfd = SimpleDateFormat("EEEE, MMMM d", Locale.CANADA)
+        return sfd.format(Date(timestamp * 1000)) // NOTE: x1000 is Firebase specific conversion
+    }
+
+    fun time(timestamp: Long): String {
+        val sfd = SimpleDateFormat("hh:mm aa", Locale.CANADA)
+        return sfd.format(Date(timestamp * 1000)) // NOTE: x1000 is Firebase specific conversion
+    }
+}

app/src/main/java/com/hossainkhan/android/demo/data/ResourceInfo.kt

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2019 Hossain Khan
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hossainkhan.android.demo.data
+
+
+data class ResourceInfo(
+        val author: String,
+        val summary: String,
+        val title: String,
+        val event: String,
+        val url: String,
+        val publish_date: Timestamp,
+        /**
+         * Possible values
+         * "blog", "techtalk"
+         */
+        val type: String = "techtalk"
+)

app/src/main/java/com/hossainkhan/android/demo/data/ItemModel.kt renamed to app/src/main/java/com/hossainkhan/android/demo/data/Timestamp.kt

@@ -16,4 +16,8 @@
 
 package com.hossainkhan.android.demo.data
 
-data class ItemModel(val id: Int)
+/**
+ * Internal dataclass to capture timestamp from Firebase Firestore
+ * Will be deleted when actual data-model is received.
+ */
+data class Timestamp(var _seconds: Long, var _nanoseconds: Int)

app/src/main/java/com/hossainkhan/android/demo/ui/resource/LearningResourceViewModel.kt

@@ -19,14 +19,14 @@ package com.hossainkhan.android.demo.ui.resource
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
-import com.hossainkhan.android.demo.data.ItemModel
+import com.hossainkhan.android.demo.data.ResourceInfo
 import javax.inject.Inject
 
 class LearningResourceViewModel @Inject constructor() : ViewModel() {
-    private val _data = MutableLiveData<List<ItemModel>>()
-    val data: LiveData<List<ItemModel>> = _data
+    private val _data = MutableLiveData<List<ResourceInfo>>()
+    val data: LiveData<List<ResourceInfo>> = _data
 
-    private val sampleData = mutableListOf<ItemModel>()
+    private val sampleData = mutableListOf<ResourceInfo>()
 
     init {
         generateSampleDataSet()
@@ -35,13 +35,13 @@ class LearningResourceViewModel @Inject constructor() : ViewModel() {
 
     private fun generateSampleDataSet() {
         for (i in 1..20) {
-            sampleData.add(ItemModel(i))
+            //sampleData.add(ResourceInfo(i))
         }
     }
 
 
 
-    fun onItemClicked(item: ItemModel) {
+    fun onItemClicked(item: ResourceInfo) {
 
     }
 }

app/src/main/java/com/hossainkhan/android/demo/ui/resource/ResourceListAdapter.kt

@@ -21,28 +21,28 @@ import android.view.ViewGroup
 import androidx.databinding.DataBindingUtil
 import androidx.recyclerview.widget.DiffUtil
 import com.hossainkhan.android.demo.R
-import com.hossainkhan.android.demo.data.ItemModel
+import com.hossainkhan.android.demo.data.ResourceInfo
 import com.hossainkhan.android.demo.databinding.ListItemResourceTechTalkBinding
 import com.hossainkhan.android.demo.ui.common.DataBoundListAdapter
 
 class ResourceListAdapter(
-    private val itemClickCallback: ((ItemModel) -> Unit)?
-) : DataBoundListAdapter<ItemModel, ListItemResourceTechTalkBinding>(
-    diffCallback = object : DiffUtil.ItemCallback<ItemModel>() {
-        override fun areItemsTheSame(oldItem: ItemModel, newItem: ItemModel): Boolean {
-            return oldItem.id == newItem.id
-        }
+        private val itemClickCallback: ((ResourceInfo) -> Unit)?
+) : DataBoundListAdapter<ResourceInfo, ListItemResourceTechTalkBinding>(
+        diffCallback = object : DiffUtil.ItemCallback<ResourceInfo>() {
+            override fun areItemsTheSame(oldItem: ResourceInfo, newItem: ResourceInfo): Boolean {
+                return oldItem.url == newItem.url
+            }
 
-        override fun areContentsTheSame(oldItem: ItemModel, newItem: ItemModel): Boolean {
-            return oldItem == newItem
+            override fun areContentsTheSame(oldItem: ResourceInfo, newItem: ResourceInfo): Boolean {
+                return oldItem == newItem
+            }
         }
-    }
 ) {
 
     override fun createBinding(parent: ViewGroup): ListItemResourceTechTalkBinding {
         val binding = DataBindingUtil.inflate<ListItemResourceTechTalkBinding>(
-            LayoutInflater.from(parent.context), R.layout.list_item_resource_tech_talk,
-            parent, false
+                LayoutInflater.from(parent.context), R.layout.list_item_resource_tech_talk,
+                parent, false
         )
 
         binding.actionPlay.setOnClickListener {
@@ -53,7 +53,7 @@ class ResourceListAdapter(
         return binding
     }
 
-    override fun bind(binding: ListItemResourceTechTalkBinding, item: ItemModel) {
+    override fun bind(binding: ListItemResourceTechTalkBinding, item: ResourceInfo) {
         binding.data = item
     }
 }

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

@@ -105,6 +105,6 @@
 
         <variable
             name="data"
-            type="com.hossainkhan.android.demo.data.ItemModel" />
+            type="com.hossainkhan.android.demo.data.ResourceInfo" />
     </data>
 </layout>