Added app language support (I think); fragments rely on Bundles instead of constructor parameters to get data, mitigating a source of crashes

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

@@ -1,12 +1,12 @@
 package com.denizk0461.studip.activity
 
 import android.annotation.SuppressLint
-import android.app.Activity
 import android.os.Bundle
 import android.webkit.WebResourceRequest
 import android.webkit.WebView
 import android.webkit.WebViewClient
 import android.widget.Toast
+import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.ViewModelProvider
 import com.denizk0461.studip.R
 import com.denizk0461.studip.data.showErrorSnackBar
@@ -19,7 +19,7 @@ import java.net.URLDecoder
  * Activity for allowing the user to log in to access and fetch their schedule from their Stud.IP
  * profile. Launched through a button in the app's settings.
  */
-class FetcherActivity : Activity() {
+class FetcherActivity : AppCompatActivity() {
 
     // View binding
     private lateinit var binding: ActivityFetcherBinding

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

@@ -0,0 +1,32 @@
+package com.denizk0461.studip.activity
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.WindowCompat
+import com.denizk0461.studip.R
+import com.denizk0461.studip.databinding.ActivityImageBinding
+
+/**
+ * Activity used solely to display a single image. Not a critical part of the app.
+ */
+class ImageActivity : AppCompatActivity() {
+
+    // View binding
+    private lateinit var binding: ActivityImageBinding
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        WindowCompat.setDecorFitsSystemWindows(window, false)
+        super.onCreate(savedInstanceState)
+
+        // Inflate view binding and bind to this activity
+        binding = ActivityImageBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        // Set the image of the view
+        binding.imageView.setImageResource(when (intent.extras?.getString("img") ?: "") {
+            "bojack" -> { R.drawable.man }
+            "garbage" -> { R.drawable.garbage }
+            else -> { R.drawable.engineering }
+        })
+    }
+}

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

@@ -41,20 +41,6 @@ class MainActivity : FragmentActivity() {
         binding = ActivityMainBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
-        // Open the fragment that the user specified to open on app start
-        if (
-            AppRepository.getRepositoryInstance(application)
-                .getBooleanPreference(SettingsPreferences.LAUNCH_CANTEEN_ON_START)
-        ) {
-            // Open canteen fragment
-            binding.contentMain.navView.selectedItemId = R.id.food
-            currentFragment = "canteen"
-        } else {
-            // Open event fragment
-            binding.contentMain.navView.selectedItemId = R.id.plan
-            currentFragment = "event"
-        }
-
         // Set up navigation view bar to launch fragments
         binding.contentMain.navView.setOnItemSelectedListener { item ->
             // Launch fragment based on the item that has been clicked
@@ -65,8 +51,24 @@ class MainActivity : FragmentActivity() {
             })
         }
 
-        // Launch the fragment defined in currentFragment
-        loadFragment(currentFragment)
+        // Set up bottom nav bar and the initial fragment when the app launches
+        if (savedInstanceState == null) {
+            // Open the fragment that the user specified to open on app start
+            if (AppRepository.getRepositoryInstance(application)
+                    .getBooleanPreference(SettingsPreferences.LAUNCH_CANTEEN_ON_START)
+            ) {
+                // Open canteen fragment
+                binding.contentMain.navView.selectedItemId = R.id.food
+                currentFragment = "canteen"
+            } else {
+                // Open event fragment
+                binding.contentMain.navView.selectedItemId = R.id.plan
+                currentFragment = "event"
+            }
+
+            // Launch the fragment defined in currentFragment
+            loadFragment(currentFragment)
+        }
     }
 
     /**