Scrolling ability has been added to the toolbars of the fragments, but in the process, I ducked up the canteen fragment. TODO: figure out a solution for where to put the chip group

app/src/main/java/com/denizk0461/studip/data/Misc.kt

@@ -9,6 +9,7 @@ import android.util.TypedValue
 import android.widget.Toast
 import androidx.annotation.AttrRes
 import androidx.coordinatorlayout.widget.CoordinatorLayout
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
 import com.denizk0461.studip.R
 import com.denizk0461.studip.exception.AcademicQuarterNotApplicableException
 import com.denizk0461.studip.exception.ParcelNotFoundException
@@ -94,6 +95,19 @@ inline fun <reified T : Parcelable> Bundle?.getParcelableCompat(key: String): T
         this?.getParcelable(key) as? T
     } ?: throw ParcelNotFoundException()
 
+/**
+ * Applies a rainbow colour effect to a progress circle of a given [SwipeRefreshLayout]. The circle
+ * will rotate through 4 different colours during the refresh process.
+ */
+fun SwipeRefreshLayout.setRainbowProgressCircle() {
+    setColorSchemeColors(
+        context.getColor(R.color.beef_light_primary),
+        context.getColor(R.color.fair_light_primary),
+        context.getColor(R.color.vital_light_primary),
+        context.getColor(R.color.poultry_dark_primary),
+    )
+}
+
 /**
  * Provides a conversion method between a timestamp ending in a full hour, and one with an academic
  * quarter applied.

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

@@ -9,6 +9,7 @@ import androidx.fragment.app.viewModels
 import com.denizk0461.studip.R
 import com.denizk0461.studip.adapter.CanteenOfferPageAdapter
 import com.denizk0461.studip.data.getTextSheet
+import com.denizk0461.studip.data.setRainbowProgressCircle
 import com.denizk0461.studip.data.showErrorSnackBar
 import com.denizk0461.studip.databinding.FragmentCanteenBinding
 import com.denizk0461.studip.model.*
@@ -49,6 +50,9 @@ class CanteenFragment : AppFragment() {
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
+        // Set progress circle colours
+        binding.swipeRefreshLayout.setRainbowProgressCircle()
+
         // Open the menu for the canteen picker button
         binding.buttonCanteenPicker.setOnClickListener {
             PopupMenu(binding.root.context, binding.buttonCanteenPicker).apply {
@@ -128,9 +132,9 @@ class CanteenFragment : AppFragment() {
                  * TODO implement a more efficient / better-looking method
                  * TODO order the chips alphabetically?
                  */
-                val index = binding.chipsPreference.indexOfChild(buttonView)
-                binding.chipsPreference.removeView(buttonView)
-                binding.chipsPreference.addView(buttonView, index)
+//                val index = binding.chipsPreference.indexOfChild(buttonView)
+//                binding.chipsPreference.removeView(buttonView)
+//                binding.chipsPreference.addView(buttonView, index)
             }
         }
 
@@ -226,10 +230,14 @@ class CanteenFragment : AppFragment() {
             binding.swipeRefreshLayout.isRefreshing = false
 
         }, onError = {
+            // Tell the user that an error occurred
             context.theme?.showErrorSnackBar(
                 binding.snackbarContainer,
                 getString(R.string.canteen_fetch_error)
             )
+            /*
+             * Tell the swipe refresh layout to stop refreshing.
+             */
             binding.swipeRefreshLayout.isRefreshing = false
         })
     }