added fallback webView for API19- (no TLSv1.2 for RSS Parser)

app/build.gradle

@@ -77,6 +77,7 @@ dependencies {
 
     // RSS parser library @ https://github.com/prof18/RSS-Parser
     implementation 'com.prof.rssparser:rssparser:2.0.4'
+    implementation 'com.github.ahorn:android-rss:1.0-rc1'
 
     def work_version = "2.2.0"
     implementation "androidx.work:work-runtime-ktx:$work_version"

app/src/main/java/fr/forum_thalie/tsumugi/ui/news/NewsFragment.kt

@@ -1,10 +1,13 @@
 package fr.forum_thalie.tsumugi.ui.news
 
+import android.os.Build
 import android.os.Bundle
 import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.view.WindowManager
+import android.webkit.WebView
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProviders
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -23,10 +26,39 @@ class NewsFragment : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
+        var root = inflater.inflate(R.layout.fragment_news, container, false) as View
+        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT)
+        {
+            root = inflater.inflate(R.layout.fragment_news, container, false) as androidx.coordinatorlayout.widget.CoordinatorLayout
+            activity?.window?.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN)
+            val webView = WebView(context)
+
+            newsViewModel =
+                ViewModelProviders.of(this).get(NewsViewModel::class.java)
+
+            if (!newsViewModel.isWebViewLoaded)
+            {
+                try {
+                    val webViewS = root.findViewById<WebView>(R.id.news_webview)
+                    val webViewChat = WebViewNews(webViewS as WebView)
+                    webViewChat.start()
+                } catch (e: Exception) {
+                    root = inflater.inflate(R.layout.fragment_error_chat, container, false)
+                }
+
+                newsViewModel.isWebViewLoaded = true
+                Log.d(tag, "webview created")
+            } else {
+                Log.d(tag, "webview already created!?")
+            }
+
+            return root
+        }
+
         newsViewModel =
                 ViewModelProviders.of(this).get(NewsViewModel::class.java)
 
-        val root = inflater.inflate(R.layout.fragment_news, container, false) as androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+        root = inflater.inflate(R.layout.fragment_news, container, false) as androidx.swiperefreshlayout.widget.SwipeRefreshLayout
 
         viewManager = LinearLayoutManager(context)
         viewAdapter = NewsAdapter(newsViewModel.newsArray, context!!)

app/src/main/java/fr/forum_thalie/tsumugi/ui/news/NewsViewModel.kt

@@ -1,5 +1,6 @@
 package fr.forum_thalie.tsumugi.ui.news
 
+import android.os.Build
 import android.util.Log
 import androidx.lifecycle.ViewModel
 import androidx.recyclerview.widget.RecyclerView
@@ -23,6 +24,7 @@ import kotlin.math.min
 class NewsViewModel : ViewModel() {
 
     val newsArray : ArrayList<News> = ArrayList()
+    var isWebViewLoaded = false
 
     private val urlToScrape = "https://tsumugi.forum-thalie.fr/?feed=rss2"
 
@@ -53,10 +55,12 @@ class NewsViewModel : ViewModel() {
 
     fun fetch(root: androidx.swiperefreshlayout.widget.SwipeRefreshLayout? = null, viewAdapter: RecyclerView.Adapter<*>? = null)
     {
+        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT)
+            return // the RSS Parser does not support API20- because of no TLS v1.2
+
         val maxNumberOfArticles = 5
         coroutineScope.launch(Dispatchers.Main) {
             Log.d(tag, "launching coroutine")
-            try {
                 val parser = Parser()
                 val articleList = parser.getArticles(urlToScrape)
                 newsArray.clear()
@@ -81,10 +85,7 @@ class NewsViewModel : ViewModel() {
                 }
                 // The list contains all article's data. For example you can use it for your adapter.
                 root?.isRefreshing = false
-                viewAdapter?.notifyDataSetChanged()
-            } catch (e: Exception) {
-                // Handle the exception
-            }
+
         }
     }
 }

app/src/main/java/fr/forum_thalie/tsumugi/ui/news/WebViewNews.kt

@@ -0,0 +1,47 @@
+package fr.forum_thalie.tsumugi.ui.news
+
+import android.annotation.SuppressLint
+import android.content.Intent
+import android.net.Uri
+import android.webkit.WebChromeClient
+import android.webkit.WebView
+
+class WebViewNews(private val webView: WebView) {
+
+    @SuppressLint("SetJavaScriptEnabled")
+    fun start() {
+
+        val webSetting = this.webView.settings
+        webSetting.javaScriptEnabled = true
+        webSetting.setSupportZoom(true)
+
+        /* TODO: in the future, it could be nice to have a parameters screen where you can:
+     - Set the text zoom
+     - Set your username (to not type it every time, would it be possible?)
+     - Hide the chat?
+     - do more? */
+        webSetting.textZoom = 90
+
+        webSetting.setSupportMultipleWindows(true)
+        // needs to open target="_blank" links as KiwiIRC links have this attribute.
+        // shamelessly ripped off https://stackoverflow.com/questions/18187714/android-open-target-blank-links-in-webview-with-external-browser
+        this.webView.webChromeClient = object : WebChromeClient() {
+            override fun onCreateWindow(
+                view: WebView,
+                dialog: Boolean,
+                userGesture: Boolean,
+                resultMsg: android.os.Message
+            ): Boolean {
+                val result = view.hitTestResult
+                val data = result.extra
+                val context = view.context
+                val browserIntent = Intent(Intent.ACTION_VIEW, Uri.parse(data))
+                context.startActivity(browserIntent)
+                return false
+            }
+        }
+
+        webView.loadUrl("https://tsumugi.forum-thalie.fr/")
+    }
+
+}

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

@@ -35,7 +35,7 @@ This WebView is just the size of the screen, to make it practical.
 -->
 
 <WebView
-    android:id="@+id/chat_webview"
+    android:id="@+id/news_webview"
     android:layout_width="match_parent"
     android:layout_height="match_parent" />
 

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

@@ -1,16 +1,42 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+<!--
+<androidx.constraintlayout.widget.ConstraintLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent" >
 
-    <androidx.recyclerview.widget.RecyclerView
+    <TextView
+        android:id="@+id/text_notifications"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:id="@+id/news_recycler"
-        android:scrollbars="vertical"
-        >
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginEnd="8dp"
+        android:textAlignment="center"
+        android:textSize="20sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"/>
+</androidx.constraintlayout.widget.ConstraintLayout>
+-->
 
-    </androidx.recyclerview.widget.RecyclerView>
-</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    >
+
+    <!--
+    Yattoz - this is a simple embedded WebView to display KiwiIRC in the app.
+    KiwiIRC is a decent IRC, but the website is clunky and you must scroll a lot.
+    This WebView is just the size of the screen, to make it practical.
+    -->
+
+    <WebView
+        android:id="@+id/news_webview"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

build.gradle

@@ -18,7 +18,7 @@ allprojects {
     repositories {
         google()
         jcenter()
-        
+        maven { url 'https://jitpack.io' }
     }
 }