hide the mensa card value button

app/src/main/java/org/mosad/seil0/projectlaogai/MainActivity.kt

@@ -132,22 +132,13 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
 
     override fun onNavigationItemSelected(item: MenuItem): Boolean {
         // Handle navigation view item clicks here.
-        when (item.itemId) {
-            R.id.nav_home -> {
-                activeFragment = HomeFragment()
-            }
-            R.id.nav_mensa -> {
-                activeFragment = MensaFragment()
-            }
-            R.id.nav_timetable -> {
-                activeFragment = TimeTableFragment()
-            }
-            R.id.nav_moodle -> {
-                activeFragment = MoodleFragment()
-            }
-            R.id.nav_settings -> {
-                activeFragment = SettingsFragment()
-            }
+        activeFragment = when(item.itemId) {
+            R.id.nav_home -> HomeFragment()
+            R.id.nav_mensa -> MensaFragment()
+            R.id.nav_timetable -> TimeTableFragment()
+            R.id.nav_moodle -> MoodleFragment()
+            R.id.nav_settings -> SettingsFragment()
+            else -> HomeFragment()
         }
 
         val fragmentTransaction: FragmentTransaction = supportFragmentManager.beginTransaction()
@@ -172,13 +163,12 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
             val cal = Calendar.getInstance()
 
 
+            // TODO this will backfire if someone has to update before the server finished updating the timetable at 0001/0101
             // timetable sunday workaround
             cal.time = Date(timetableCacheTime * 1000)
-            val timetableCacheDay = cal.get(Calendar.DAY_OF_WEEK)
 
-            // TODO this will backfire if someone has to update before the server finished updating the timetable at 0001/0101
             // update blocking if a) it`s monday and the last cache was not on a monday or b) the cache is older than 6 days
-            if((currentDay == Calendar.MONDAY && timetableCacheDay != Calendar.MONDAY) || (System.currentTimeMillis() / 1000) - timetableCacheTime > 518400) {
+            if((currentDay == Calendar.MONDAY && cal.get(Calendar.DAY_OF_WEEK) != Calendar.MONDAY) || currentTime - timetableCacheTime > 518400) {
                 println("updating timetable after sunday!")
                 val jobA = TCoRAPIController.getTimetable(cCourse.courseName, 0, this)
                 val jobB = TCoRAPIController.getTimetable(cCourse.courseName, 1, this)
@@ -188,28 +178,16 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
             }
 
 
-
-//            //mensa sunday workaround
-//            cal.time = Date(System.currentTimeMillis()) // reset to current time
-//
-//            // update blocking if it's sunday after 1500
-//            if(currentDay == Calendar.SUNDAY && cal.get(Calendar.HOUR_OF_DAY) >= 15) {
-//                TCoRAPIController.getMensa(this).get()
-//            }
-
-            // TODO test!!
             // new sunday bug fix
             CacheController.readMensa(this)
-            val mensaUpdateTime = Date(mensaMenu.meta.updateTime * 1000)
-            cal.time = mensaUpdateTime
+            cal.time = Date(mensaMenu.meta.updateTime * 1000)
 
             // if it's monday and the last cache update was on sunday or is older than 24hr, update blocking
             if ((currentDay == Calendar.MONDAY && cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) || currentTime - mensaMenu.meta.updateTime > 86400) {
-                println("update blocking")
+                println("update mensa blocking")
                 TCoRAPIController.getMensa(this).get()
             }
 
-
             // get the cached files
             val cache = CacheController(this)
             cache.readStartCache(cCourse.courseName)

app/src/main/java/org/mosad/seil0/projectlaogai/fragments/MensaFragment.kt

@@ -22,10 +22,12 @@
 
 package org.mosad.seil0.projectlaogai.fragments
 
+import android.os.Build
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.ScrollView
 import androidx.fragment.app.Fragment
 import com.afollestad.materialdialogs.MaterialDialog
 import com.google.android.material.floatingactionbutton.FloatingActionButton
@@ -49,12 +51,14 @@ import org.mosad.seil0.projectlaogai.uicomponents.MealLinearLayout
 class MensaFragment : Fragment() {
 
     private lateinit var btnCardValue: FloatingActionButton
+    private lateinit var scrollViewMensa: ScrollView
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
 
         val view: View = inflater.inflate(R.layout.fragment_mensa, container, false)
 
         btnCardValue = view.findViewById(R.id.btnCardValue)
+        scrollViewMensa = view.findViewById(R.id.scrollView_Mensa)
 
         // init actions
         initActions()
@@ -67,7 +71,6 @@ class MensaFragment : Fragment() {
         addWeek(mensaMenu.nextWeek, 0)
 
         // TODO should we show a info if there is no more food this & next week?
-        // TODO hide the floating button if we are not on the top end of the scroll pane
 
         return view
     }
@@ -82,6 +85,19 @@ class MensaFragment : Fragment() {
                 .show()
         }
 
+        // TODO only works with android m(23) or higher
+        // hide the btnCardValue if the user is scrolling down
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            scrollViewMensa.setOnScrollChangeListener(object: View.OnScrollChangeListener {
+                override fun onScrollChange(v: View?, scrollX: Int, scrollY: Int, oldScrollX: Int, oldScrollY: Int) {
+                    if (scrollY > oldScrollY) {
+                        btnCardValue.hide()
+                    } else {
+                        btnCardValue.show()
+                    }
+                }
+            })
+        }
 
     }
 

app/src/main/java/org/mosad/seil0/projectlaogai/fragments/TimeTableFragment.kt

@@ -49,7 +49,7 @@ import java.util.*
  */
 class TimeTableFragment : Fragment() {
 
-    private val formatter = SimpleDateFormat("E dd.MM", Locale.getDefault()) // TODO change to android call when min api is 24
+    private val formatter = SimpleDateFormat("E dd.MM", Locale.getDefault())
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
 

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

@@ -12,7 +12,7 @@
 
         <ScrollView
                 android:layout_width="match_parent"
-                android:layout_height="match_parent">
+                android:layout_height="match_parent" android:id="@+id/scrollView_Mensa">
             <LinearLayout
                     android:orientation="vertical"
                     android:layout_width="match_parent"
@@ -22,6 +22,7 @@
                     android:id="@+id/linLayout_Mensa"/>
         </ScrollView>
     </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
+
     <com.google.android.material.floatingactionbutton.FloatingActionButton
             android:src="@drawable/ic_local_dining_black_24dp"
             android:layout_width="wrap_content"