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() {