added refresh to timetable screen

app/build.gradle

@@ -13,7 +13,7 @@ android {
         minSdkVersion 21
         targetSdkVersion 28
         versionCode 12
-        versionName "0.4.90"
+        versionName "0.4.91"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         resValue "string", "build_time", buildTime()
         setProperty("archivesBaseName", "projectlaogai-$versionName")

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

@@ -162,10 +162,10 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
      * load the mensa menus of the current week
      */
     private fun load() {
-        // load the settings
-        PreferencesController.load(this) // this must be finished before doing anything else
-
         val startupTime = measureTimeMillis {
+            // load the settings
+            PreferencesController.load(this) // this must be finished before doing anything else
+
             val tcor = TCoRAPIController(this)
             val currentTime = System.currentTimeMillis() / 1000
             val currentDay = Calendar.getInstance().get(Calendar.DAY_OF_WEEK)
@@ -179,8 +179,8 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
             // 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) {
                 println("updating timetable after sunday!")
-                val jobA = tcor.getTimetable(cCourse.courseName, 0)
-                val jobB = tcor.getTimetable(cCourse.courseName, 1)
+                val jobA = TCoRAPIController.getTimetable(cCourse.courseName, 0, this)
+                val jobB = TCoRAPIController.getTimetable(cCourse.courseName, 1, this)
 
                 jobA.get()
                 jobB.get()
@@ -208,11 +208,11 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
                 TCoRAPIController.getMensa(this)
 
             if(currentTime - timetableCacheTime > 10800) {
-                tcor.getTimetable(cCourse.courseName, 0)
-                tcor.getTimetable(cCourse.courseName, 1)
+                TCoRAPIController.getTimetable(cCourse.courseName, 0, this)
+                TCoRAPIController.getTimetable(cCourse.courseName, 1, this)
             }
         }
-        println("Completed in $startupTime ms")
+        println("startup completed in $startupTime ms")
     }
 
 }

app/src/main/java/org/mosad/seil0/projectlaogai/controller/CacheController.kt

@@ -65,6 +65,30 @@ class CacheController(cont: Context) {
             mensaCurrentWeek = Gson().fromJson(currentWeek, MensaWeek().javaClass)
             mensaNextWeek = Gson().fromJson(nextWeek, MensaWeek().javaClass)
         }
+
+        /**
+         * read the weeks timetable from the cached file
+         * @param courseName the course name (e.g AI1)
+         * @param week the week to read (0 for the current and so on)
+         */
+        fun readTimetable(courseName: String, week: Int, context: Context) {
+            val file = File(context.filesDir, "timetable-$courseName-$week.json")
+
+            // make sure the file exists
+            if (!file.exists())
+                TCoRAPIController.getTimetable(courseName, week, context).get()
+
+            val fileReader = FileReader(file)
+            val bufferedReader = BufferedReader(fileReader)
+            val timetableObject = JsonParser().parse(bufferedReader.readLine()).asJsonObject
+
+            // make sure you add the single weeks in the exact order!
+            if (timetables.size == week) {
+                timetables.add(Gson().fromJson(timetableObject.getAsJsonObject("timetable"), TimetableWeek().javaClass))
+            } else if (timetables.size >= week) {
+                timetables[week] = Gson().fromJson(timetableObject.getAsJsonObject("timetable"), TimetableWeek().javaClass)
+            }
+        }
     }
 
     /**
@@ -74,8 +98,8 @@ class CacheController(cont: Context) {
     fun readStartCache(courseName: String) {
         readCoursesList()
         readMensa(context)
-        readTimetable(courseName, 0)
-        readTimetable(courseName, 1)
+        readTimetable(courseName, 0, context)
+        readTimetable(courseName, 1, context)
     }
 
     /**
@@ -96,29 +120,4 @@ class CacheController(cont: Context) {
         coursesList = Gson().fromJson(coursesObject.getAsJsonArray("courses"), object : TypeToken<List<Course>>() {}.type)
     }
 
-
-
-    /**
-     * read the weeks timetable from the cached file
-     * @param courseName the course name (e.g AI1)
-     * @param week the week to read (0 for the current and so on)
-     */
-    fun readTimetable(courseName: String, week: Int) {
-        val file = File(context.filesDir, "timetable-$courseName-$week.json")
-
-        // make sure the file exists
-        if (!file.exists())
-            TCoRAPIController(context).getTimetable(courseName, week).get()
-
-        val fileReader = FileReader(file)
-        val bufferedReader = BufferedReader(fileReader)
-        val timetableObject = JsonParser().parse(bufferedReader.readLine()).asJsonObject
-
-        // make sure you add the single weeks in the exact order!
-        if (timetables.size == week) {
-            timetables.add(Gson().fromJson(timetableObject.getAsJsonObject("timetable"), TimetableWeek().javaClass))
-        } else if (timetables.size >= week) {
-            timetables[week] = Gson().fromJson(timetableObject.getAsJsonObject("timetable"), TimetableWeek().javaClass)
-        }
-    }
 }

app/src/main/java/org/mosad/seil0/projectlaogai/controller/TCoRAPIController.kt

@@ -54,6 +54,26 @@ class TCoRAPIController(cont: Context) {
             mensaCacheTime = System.currentTimeMillis() / 1000
             PreferencesController.save(context)
         }
+
+        /**
+         * get the json object from tcor api and write it as file (cache)
+         */
+        fun getTimetable(courseName: String, week: Int, context: Context) = doAsync {
+            val url = URL("https://tcor.mosad.xyz/timetable?courseName=$courseName&week=$week")
+            val file = File(context.filesDir, "timetable-$courseName-$week.json")
+
+            // read data from the API
+            val mensaObject = JSONObject(url.readText()) //JSONObject(inReader.readLine())
+
+            // write the json object to a file
+            val writer = BufferedWriter(FileWriter(file))
+            writer.write(mensaObject.toString())
+            writer.close()
+
+            // update cache time
+            timetableCacheTime = System.currentTimeMillis() / 1000
+            PreferencesController.save(context)
+        }
     }
 
     /**
@@ -75,24 +95,4 @@ class TCoRAPIController(cont: Context) {
         coursesCacheTime = System.currentTimeMillis() / 1000
         PreferencesController.save(context)
     }
-
-    /**
-     * get the json object from tcor api and write it as file (cache)
-     */
-    fun getTimetable(courseName: String, week: Int) = doAsync {
-        val url = URL("https://tcor.mosad.xyz/timetable?courseName=$courseName&week=$week")
-        val file = File(context.filesDir, "timetable-$courseName-$week.json")
-
-        // read data from the API
-        val mensaObject = JSONObject(url.readText()) //JSONObject(inReader.readLine())
-
-        // write the json object to a file
-        val writer = BufferedWriter(FileWriter(file))
-        writer.write(mensaObject.toString())
-        writer.close()
-
-        // update cache time
-        timetableCacheTime = System.currentTimeMillis() / 1000
-        PreferencesController.save(context)
-    }
 }

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

@@ -176,11 +176,11 @@ class SettingsFragment : Fragment() {
                     PreferencesController.save(context)
 
                     // update current & next weeks timetable
-                    TCoRAPIController(context).getTimetable(cCourse.courseName, 0)
-                    TCoRAPIController(context).getTimetable(cCourse.courseName, 1)
+                    TCoRAPIController.getTimetable(cCourse.courseName, 0, context).get() // blocking since we want the new data
+                    TCoRAPIController.getTimetable(cCourse.courseName, 1, context).get() // blocking since we want the new data
 
-                    CacheController(context).readTimetable(cCourse.courseName, 0)
-                    CacheController(context).readTimetable(cCourse.courseName, 1)
+                    CacheController.readTimetable(cCourse.courseName, 0, context)
+                    CacheController.readTimetable(cCourse.courseName, 1, context)
 
                     uiThread {
                         dialog.dismiss()

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

@@ -32,7 +32,10 @@ import kotlinx.android.synthetic.main.fragment_timetable.*
 import org.jetbrains.anko.doAsync
 import org.jetbrains.anko.uiThread
 import org.mosad.seil0.projectlaogai.R
+import org.mosad.seil0.projectlaogai.controller.CacheController
 import org.mosad.seil0.projectlaogai.controller.CacheController.Companion.timetables
+import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cCourse
+import org.mosad.seil0.projectlaogai.controller.TCoRAPIController
 import org.mosad.seil0.projectlaogai.hsoparser.DataTypes
 import org.mosad.seil0.projectlaogai.hsoparser.NotRetardedCalendar
 import org.mosad.seil0.projectlaogai.hsoparser.TimetableWeek
@@ -52,6 +55,9 @@ class TimeTableFragment : Fragment() {
 
         val view: View = inflater.inflate(R.layout.fragment_timetable, container, false)
 
+        // init actions
+        refreshAction()
+
         if (timetables[0].days.isNotEmpty() && timetables[1].days.isNotEmpty()) {
             addInitWeeks()
         } else {
@@ -71,8 +77,6 @@ class TimeTableFragment : Fragment() {
         val dayIndex = NotRetardedCalendar().getDayOfWeekIndex()
         val calendar = Calendar.getInstance()
 
-        println(formatter.format(calendar.time))
-
         // add current week
         addWeek(dayIndex, 5, timetables[0], calendar).get()
 
@@ -87,7 +91,6 @@ class TimeTableFragment : Fragment() {
                 var helpLesson = LessonLinearLayout(context)
                 val dayCardView = DayCardView(context!!)
                 dayCardView.setDayHeading(formatter.format(calendar.time))
-                println("1: $day , ${formatter.format(calendar.time)}")
 
                 // for each timeslot of the day
                 for ((tsIndex, timeslot) in timetable.days[day].timeslots.withIndex()) {
@@ -108,8 +111,6 @@ class TimeTableFragment : Fragment() {
                     }
                 }
 
-                println("2: $day , ${formatter.format(calendar.time)}")
-
                 helpLesson.disableDivider()
                 calendar.add(Calendar.DATE, 1)
 
@@ -123,4 +124,43 @@ class TimeTableFragment : Fragment() {
         }
     }
 
+    /**
+     * initialize the refresh action
+     */
+    private fun refreshAction() = doAsync {
+        uiThread {
+            // set the refresh listener
+            refreshLayout_Timetable.setOnRefreshListener {
+                updateTimetableScreen()
+            }
+
+        }
+    }
+
+    private fun updateTimetableScreen() = doAsync {
+        // update the cache
+        TCoRAPIController.getTimetable(cCourse.courseName, 0, context!!).get() // blocking since we want the new data
+        TCoRAPIController.getTimetable(cCourse.courseName, 1, context!!).get() // blocking since we want the new data
+
+        CacheController.readTimetable(cCourse.courseName, 0, context!!)
+        CacheController.readTimetable(cCourse.courseName, 1, context!!)
+
+        uiThread {
+            // remove all menus from the layout
+            linLayout_Timetable.removeAllViews()
+
+            // add the refreshed timetables
+            val dayIndex = NotRetardedCalendar().getDayOfWeekIndex()
+            val calendar = Calendar.getInstance()
+
+            // add current week
+            addWeek(dayIndex, 5, timetables[0], calendar).get()
+
+            // add next week
+            addWeek(0, dayIndex - 1, timetables[1], calendar)
+
+            refreshLayout_Timetable.isRefreshing = false
+        }
+    }
+
 }

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

@@ -5,9 +5,10 @@
              android:layout_height="match_parent"
              tools:context=".fragments.TimeTableFragment">
 
-    <androidx.constraintlayout.widget.ConstraintLayout
+    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
             android:layout_width="match_parent"
-            android:layout_height="match_parent">
+            android:layout_height="match_parent"
+            android:id="@+id/refreshLayout_Timetable">
 
         <ScrollView
                 android:layout_width="match_parent"
@@ -20,6 +21,5 @@
                     android:background="@color/themePrimary"
                     android:id="@+id/linLayout_Timetable"/>
         </ScrollView>
-    </androidx.constraintlayout.widget.ConstraintLayout>
-
+    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
 </FrameLayout>