TE7-T893: Add Web service without library

Demo/app/src/main/java/com/krunal/demo/appcomponents/utils/IntentData.kt

@@ -7,6 +7,7 @@ object IntentData {
      */
     const val MESSAGE = "message"
     const val AUTH_KEY = "auth_key"
+    const val WEB_URL = "web_url"
 
     /**
      * Actions

Demo/app/src/main/java/com/krunal/demo/mainnavigation/data/repositories/ComponentDetailRepository.kt

@@ -34,6 +34,7 @@ import com.krunal.demo.uicomponents.constraintLayouts.GuidelineBarrierFragment
 import com.krunal.demo.uicomponents.constraintLayouts.RelativeFragment
 import com.krunal.demo.uicomponents.picker.DatePickerFragment
 import com.krunal.demo.uicomponents.picker.TimePickerFragment
+import com.krunal.demo.webservices.withoutlibrary.ui.fragments.NewsListFragment
 
 object ComponentDetailRepository {
 
@@ -55,6 +56,8 @@ object ComponentDetailRepository {
                 "App Component", appComponents
             ), ComponentDetail.ActivityComponent(
                 "Search and Web view", SearchWebActivity::class.java
+            ), ComponentDetail.FragmentComponent(
+                "News List", NewsListFragment::class.java
             )
         )
     }

Demo/app/src/main/java/com/krunal/demo/searchwebview/data/repositories/WebViewRepository.kt

@@ -19,5 +19,5 @@ object WebViewRepository {
         "m.youtube.com"
     )
 
-    fun getRandomUrl(): String = urls.random()
+    fun getRandomUrl(): String = "https://google.com"//urls.random()
 }

Demo/app/src/main/java/com/krunal/demo/searchwebview/ui/fragments/WebViewFragment.kt

@@ -10,6 +10,7 @@ import androidx.fragment.app.viewModels
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
+import com.krunal.demo.appcomponents.utils.IntentData
 import com.krunal.demo.databinding.FragmentWebViewBinding
 import com.krunal.demo.searchwebview.helpers.WebClient
 import com.krunal.demo.searchwebview.ui.viewmodels.WebViewViewModel
@@ -41,6 +42,8 @@ class WebViewFragment : Fragment() {
 
     @SuppressLint("SetJavaScriptEnabled")
     private fun setupWebView() {
+        arguments?.getString(IntentData.WEB_URL)?.let(viewModel::loadUrl)
+
         binding.webView.apply {
             webViewClient = WebClient()
             settings.javaScriptEnabled = true

Demo/app/src/main/java/com/krunal/demo/uicomponents/adapters/ViewBindingAdapter.kt

@@ -1,7 +1,9 @@
 package com.krunal.demo.uicomponents.adapters
 
+import android.graphics.BitmapFactory
 import android.graphics.Color
 import android.graphics.drawable.GradientDrawable
+import android.media.ThumbnailUtils
 import android.view.View
 import android.widget.ImageView
 import android.widget.TextView
@@ -10,6 +12,12 @@ import androidx.annotation.DrawableRes
 import androidx.appcompat.content.res.AppCompatResources
 import androidx.core.graphics.ColorUtils
 import androidx.databinding.BindingAdapter
+import androidx.lifecycle.findViewTreeLifecycleOwner
+import androidx.lifecycle.lifecycleScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import java.net.HttpURLConnection
+import java.net.URL
 
 @BindingAdapter("drawableResource")
 fun ImageView.setDrawableResource(@DrawableRes drawableResource: Int) {
@@ -58,4 +66,17 @@ fun View.setGradientBackground(gradientStartColor: Int?, gradientEndColor: Int?,
             }
         }
     }
+}
+
+@BindingAdapter("imageUrl")
+fun ImageView.bindImage(url: String?) {
+    if (url == null) return
+
+    findViewTreeLifecycleOwner()?.lifecycleScope?.launch(Dispatchers.IO) {
+        runCatching {
+            val urlConnection = URL(url).openConnection() as HttpURLConnection
+            val bitmap = BitmapFactory.decodeStream(urlConnection.inputStream)
+            setImageBitmap(ThumbnailUtils.extractThumbnail(bitmap, 200, 200))
+        }
+    }
 }

Demo/app/src/main/java/com/krunal/demo/utils/AppConstants.kt

@@ -0,0 +1,7 @@
+package com.krunal.demo.utils
+
+object AppConstants {
+
+    const val NEWS_API_KEY = "fa3d5d7db3f8448dac9f98e82f1108ce"
+    const val NEST_BASE_URL = "https://newsapi.org/v2"
+}

Demo/app/src/main/java/com/krunal/demo/webservices/withoutlibrary/data/apis/NewsApi.kt

@@ -0,0 +1,63 @@
+package com.krunal.demo.webservices.withoutlibrary.data.apis
+
+import com.krunal.demo.utils.AppConstants
+import com.krunal.demo.webservices.withoutlibrary.data.models.api.ArticleResponse
+import com.krunal.demo.webservices.withoutlibrary.data.models.api.NewsResponse
+import com.krunal.demo.webservices.withoutlibrary.data.models.api.SourceResponse
+import org.json.JSONObject
+import java.io.BufferedReader
+import java.io.InputStreamReader
+import java.net.HttpURLConnection
+import java.net.URL
+
+object NewsApi {
+
+    private const val HEADLINE_URL =
+        "${AppConstants.NEST_BASE_URL}/top-headlines?country=in&apiKey=${AppConstants.NEWS_API_KEY}"
+
+    suspend fun getNews(): NewsResponse? {
+        var newsResponse: NewsResponse? = null
+
+        runCatching {
+            val url = URL(HEADLINE_URL)
+            val urlConnection = url.openConnection() as HttpURLConnection
+            urlConnection.addRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:221.0) Gecko/20100101 Firefox/31.0")
+            val br = BufferedReader(InputStreamReader(urlConnection.inputStream))
+            val response = br.readText()
+
+            val newsJson = JSONObject(response)
+            val status = newsJson.getString("status")
+            val totalResults = newsJson.getInt("totalResults")
+
+            val articles = mutableListOf<ArticleResponse>()
+
+            val articlesJson = newsJson.getJSONArray("articles")
+
+            for (i in 0 until articlesJson.length()) {
+                if (i == 19) {
+                    print("")
+                }
+                val articleJson = articlesJson.getJSONObject(i)
+                val sourceJson = articleJson.getJSONObject("source")
+                val source =
+                    SourceResponse(sourceJson.optString("id"), sourceJson.optString("name"))
+                val article = ArticleResponse(
+                    source = source,
+                    author = articleJson.optString("author"),
+                    title = articleJson.getString("title"),
+                    description = articleJson.getString("description"),
+                    url = articleJson.getString("url"),
+                    urlToImage = articleJson.getString("urlToImage"),
+                    publishedAt = articleJson.getString("publishedAt"),
+                    content = articleJson.getString("content"),
+                )
+                articles.add(article)
+            }
+
+            newsResponse = NewsResponse(
+                status, totalResults, articles
+            )
+        }
+        return newsResponse
+    }
+}

Demo/app/src/main/java/com/krunal/demo/webservices/withoutlibrary/data/models/api/ArticleResponse.kt

@@ -0,0 +1,12 @@
+package com.krunal.demo.webservices.withoutlibrary.data.models.api
+
+data class ArticleResponse(
+    val source: SourceResponse,
+    val author: String? = null,
+    val title: String,
+    val description: String,
+    val url: String,
+    val urlToImage: String,
+    val publishedAt: String,
+    val content: String
+)

Demo/app/src/main/java/com/krunal/demo/webservices/withoutlibrary/data/models/api/NewsResponse.kt

@@ -0,0 +1,7 @@
+package com.krunal.demo.webservices.withoutlibrary.data.models.api
+
+data class NewsResponse(
+    val status: String,
+    val totalResult: Int,
+    val articles: List<ArticleResponse>
+)

Demo/app/src/main/java/com/krunal/demo/webservices/withoutlibrary/data/models/api/SourceResponse.kt

@@ -0,0 +1,6 @@
+package com.krunal.demo.webservices.withoutlibrary.data.models.api
+
+data class SourceResponse(
+    val id: String? = null,
+    val name: String? = null
+)

Demo/app/src/main/java/com/krunal/demo/webservices/withoutlibrary/data/models/local/NewsItem.kt

@@ -0,0 +1,8 @@
+package com.krunal.demo.webservices.withoutlibrary.data.models.local
+
+data class NewsItem(
+    val title: String,
+    val description: String,
+    val url: String,
+    val imageUrl: String
+)

Demo/app/src/main/java/com/krunal/demo/webservices/withoutlibrary/repositories/NewsRepository.kt

@@ -0,0 +1,10 @@
+package com.krunal.demo.webservices.withoutlibrary.repositories
+
+import com.krunal.demo.webservices.withoutlibrary.data.apis.NewsApi
+import com.krunal.demo.webservices.withoutlibrary.data.models.api.ArticleResponse
+
+object NewsRepository {
+
+    suspend fun getNewsArticles(): List<ArticleResponse> =
+        NewsApi.getNews()?.articles ?: emptyList()
+}

Demo/app/src/main/java/com/krunal/demo/webservices/withoutlibrary/ui/adapters/NewsAdapter.kt

@@ -0,0 +1,45 @@
+package com.krunal.demo.webservices.withoutlibrary.ui.adapters
+
+import android.annotation.SuppressLint
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import com.krunal.demo.databinding.ItemNewsBinding
+import com.krunal.demo.webservices.withoutlibrary.data.models.local.NewsItem
+
+class NewsAdapter(val onClick: (newsItem: NewsItem) -> Unit) : RecyclerView.Adapter<NewsAdapter.NewsViewHolder>() {
+
+    private val newsList: MutableList<NewsItem> = mutableListOf()
+
+    class NewsViewHolder(
+        private val binding: ItemNewsBinding,
+        val onClick: (NewsItem) -> Unit
+    ) : RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(newsItem: NewsItem) {
+            binding.newsItem = newsItem
+            binding.root.setOnClickListener {
+                onClick(newsItem)
+            }
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): NewsViewHolder {
+        val layoutInflater = LayoutInflater.from(parent.context)
+        val binding = ItemNewsBinding.inflate(layoutInflater, parent, false)
+        return NewsViewHolder(binding, onClick)
+    }
+
+    override fun getItemCount(): Int = newsList.count()
+
+    override fun onBindViewHolder(holder: NewsViewHolder, position: Int) {
+        holder.bind(newsList[position])
+    }
+
+    @SuppressLint("NotifyDataSetChanged")
+    fun submitList(list: List<NewsItem>) {
+        newsList.clear()
+        newsList.addAll(list)
+        notifyDataSetChanged()
+    }
+}

Demo/app/src/main/java/com/krunal/demo/webservices/withoutlibrary/ui/fragments/NewsListFragment.kt

@@ -0,0 +1,63 @@
+package com.krunal.demo.webservices.withoutlibrary.ui.fragments
+
+import android.content.Intent
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.core.net.toUri
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.viewModels
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
+import androidx.recyclerview.widget.DividerItemDecoration
+import com.krunal.demo.databinding.FragmentNewsListBinding
+import com.krunal.demo.webservices.withoutlibrary.ui.adapters.NewsAdapter
+import com.krunal.demo.webservices.withoutlibrary.ui.viewmodels.NewsViewModel
+import kotlinx.coroutines.launch
+
+class NewsListFragment : Fragment() {
+
+    private lateinit var binding: FragmentNewsListBinding
+    private val viewModel: NewsViewModel by viewModels()
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
+    ): View {
+        binding = FragmentNewsListBinding.inflate(layoutInflater, container, false)
+        binding.lifecycleOwner = viewLifecycleOwner
+        binding.viewModel = viewModel
+        return binding.root
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        setupUI()
+    }
+
+    private fun setupUI() {
+        val adapter = NewsAdapter { newsItem ->
+            Intent(Intent.ACTION_VIEW, newsItem.url.toUri()).also { intent ->
+                activity?.startActivity(intent)
+            }
+        }
+
+        binding.rvNewsList.apply {
+            this.adapter = adapter
+            addItemDecoration(
+                DividerItemDecoration(
+                    requireContext(), DividerItemDecoration.VERTICAL
+                )
+            )
+        }
+
+        viewLifecycleOwner.lifecycleScope.launch {
+            viewLifecycleOwner.repeatOnLifecycle(Lifecycle.State.CREATED) {
+                viewModel.newsList.collect { list ->
+                    adapter.submitList(list)
+                }
+            }
+        }
+    }
+}

Demo/app/src/main/java/com/krunal/demo/webservices/withoutlibrary/ui/viewmodels/NewsViewModel.kt

@@ -0,0 +1,29 @@
+package com.krunal.demo.webservices.withoutlibrary.ui.viewmodels
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.krunal.demo.webservices.withoutlibrary.data.models.local.NewsItem
+import com.krunal.demo.webservices.withoutlibrary.repositories.NewsRepository
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.launch
+
+class NewsViewModel : ViewModel() {
+
+    private val _newsList: MutableStateFlow<List<NewsItem>> = MutableStateFlow(emptyList())
+    val newsList: StateFlow<List<NewsItem>> = _newsList
+
+    init {
+        loadData()
+    }
+
+    private fun loadData() {
+        viewModelScope.launch(Dispatchers.IO) {
+            _newsList.emit(
+                NewsRepository.getNewsArticles()
+                    .map { NewsItem(it.title, it.description, it.url, it.urlToImage) }
+            )
+        }
+    }
+}

Demo/app/src/main/res/layout/fragment_news_list.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<layout 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">
+
+    <data>
+
+        <variable
+            name="viewModel"
+            type="com.krunal.demo.webservices.withoutlibrary.ui.viewmodels.NewsViewModel" />
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".searchwebview.ui.fragments.SearchViewFragment">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/rvNewsList"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_marginHorizontal="@dimen/dp_16"
+            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>