App can now retrieve HTML

app/src/main/java/com/denizk0461/studip/activity/MainActivity.kt

@@ -35,12 +35,12 @@ class MainActivity : AppCompatActivity() {
         appBarConfiguration = AppBarConfiguration(navController.graph)
         setupActionBarWithNavController(navController, appBarConfiguration)
 
-        binding.fab.setOnClickListener { view ->
-            findNavController(R.id.nav_host_fragment_content_main).navigate(R.id.action_FirstFragment_to_SecondFragment)
-//            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
-//                .setAnchorView(R.id.fab)
-//                .setAction("Action", null).show()
-        }
+//        binding.fab.setOnClickListener { view ->
+//            findNavController(R.id.nav_host_fragment_content_main).navigate(R.id.action_FirstFragment_to_SecondFragment)
+////            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
+////                .setAnchorView(R.id.fab)
+////                .setAction("Action", null).show()
+//        }
     }
 
     override fun onCreateOptionsMenu(menu: Menu): Boolean {

app/src/main/java/com/denizk0461/studip/fragment/EventFragment.kt

@@ -6,9 +6,10 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.viewModels
-import androidx.lifecycle.Observer
+import androidx.navigation.fragment.NavHostFragment.Companion.findNavController
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.PagerSnapHelper
+import com.denizk0461.studip.R
 import com.denizk0461.studip.adapter.StudIPEventPageAdapter
 import com.denizk0461.studip.data.DummyData
 import com.denizk0461.studip.data.StudIPScraper
@@ -50,6 +51,10 @@ class EventFragment : Fragment() {
 
         viewModel.doAsync { StudIPScraper().parse(requireContext()) }
 
+        binding.fab.setOnClickListener { view ->
+            launchWebview()
+        }
+
 //        binding.buttonFirst.setOnClickListener {
 //            findNavController().navigate(R.id.action_FirstFragment_to_SecondFragment)
 //        }
@@ -59,4 +64,8 @@ class EventFragment : Fragment() {
         super.onDestroyView()
         _binding = null
     }
+
+    private fun launchWebview() {
+        findNavController(this).navigate(R.id.action_FirstFragment_to_SecondFragment)
+    }
 }

app/src/main/java/com/denizk0461/studip/fragment/SecondFragment.kt

@@ -1,11 +1,16 @@
 package com.denizk0461.studip.fragment
 
 import android.os.Bundle
+import android.util.Log
 import androidx.fragment.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.webkit.ValueCallback
 import android.webkit.WebChromeClient
+import android.webkit.WebResourceRequest
+import android.webkit.WebView
+import android.webkit.WebViewClient
 import androidx.navigation.fragment.findNavController
 import com.denizk0461.studip.R
 import com.denizk0461.studip.databinding.FragmentSecondBinding
@@ -38,8 +43,25 @@ class SecondFragment : Fragment() {
 //            findNavController().navigate(R.id.action_SecondFragment_to_FirstFragment)
 //        }
 
-        binding.webview.webChromeClient = WebChromeClient()
+        binding.webview.settings.javaScriptEnabled = true
+        binding.webview.webViewClient = object : WebViewClient() {
+            override fun shouldOverrideUrlLoading(
+                view: WebView?,
+                request: WebResourceRequest?
+            ): Boolean {
+                return false
+            }
+        }
+
         binding.webview.loadUrl("https://elearning.uni-bremen.de/index.php?again=yes")
+
+        binding.fab.setOnClickListener { view ->
+            binding.webview.evaluateJavascript(
+                "(function(){return window.document.body.outerHTML})();"
+            ) { p0 ->
+                Log.d("HELLO", p0 ?: "nothing returned")
+            }
+        }
     }
 
     override fun onDestroyView() {

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

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#000000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M9,16.17L4.83,12l-1.42,1.41L9,19 21,7l-1.41,-1.41z"/>
+</vector>

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

@@ -21,13 +21,4 @@
 
     <include layout="@layout/content_main" />
 
-    <com.google.android.material.floatingactionbutton.FloatingActionButton
-        android:id="@+id/fab"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom|end"
-        android:layout_marginEnd="@dimen/fab_margin"
-        android:layout_marginBottom="16dp"
-        app:srcCompat="@android:drawable/ic_dialog_email" />
-
 </androidx.coordinatorlayout.widget.CoordinatorLayout>

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

@@ -12,4 +12,14 @@
             android:layout_height="match_parent"
             android:scrollbars="horizontal"/>
 
+        <com.google.android.material.floatingactionbutton.FloatingActionButton
+            android:id="@+id/fab"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            android:layout_marginEnd="@dimen/fab_margin"
+            android:layout_marginBottom="@dimen/fab_margin"
+            app:srcCompat="@android:drawable/ic_dialog_email" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,15 +1,28 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
+<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:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical"
     tools:context=".fragment.SecondFragment">
 
     <WebView
         android:id="@+id/webview"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"/>
+        android:layout_height="match_parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"/>
 
-</androidx.appcompat.widget.LinearLayoutCompat>
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/fab"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginEnd="@dimen/fab_margin"
+        android:layout_marginBottom="@dimen/fab_margin"
+        app:srcCompat="@drawable/check" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>