Fix Bugs in Android Calendar Widget

android/app/src/main/AndroidManifest.xml

@@ -35,18 +35,31 @@
         android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher"
         android:label="Campus">
+
         <receiver
-            android:name=".widgets.calendar.CalendarWidget"
-            android:exported="false">
+            android:name=".widgets.calendar.CalendarWidgetProvider"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
             </intent-filter>
-
             <meta-data
                 android:name="android.appwidget.provider"
                 android:resource="@xml/calendar_widget_info" />
         </receiver>
 
+        <receiver
+            android:name="es.antonborri.home_widget.HomeWidgetBackgroundReceiver"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="es.antonborri.home_widget.action.BACKGROUND" />
+            </intent-filter>
+        </receiver>
+
+        <service
+            android:name="es.antonborri.home_widget.HomeWidgetBackgroundService"
+            android:exported="true"
+            android:permission="android.permission.BIND_JOB_SERVICE" />
+
         <service
             android:name=".widgets.calendar.CalendarWidgetService"
             android:permission="android.permission.BIND_REMOTEVIEWS" />
@@ -74,6 +87,9 @@
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
+            <intent-filter>
+                <action android:name="es.antonborri.home_widget.action.LAUNCH" />
+            </intent-filter>
         </activity>
         <!--
  Don't delete the meta-data below.

android/app/src/main/kotlin/de/tum/in/tumcampus/widgets/calendar/CalendarWidgetProvider.kt

@@ -0,0 +1,92 @@
+package de.tum.`in`.tumcampus.widgets.calendar
+
+import android.appwidget.AppWidgetManager
+import android.content.Context
+import android.content.Intent
+import android.content.SharedPreferences
+import android.view.View
+import android.widget.RemoteViews
+import de.tum.`in`.tumcampus.MainActivity
+import de.tum.`in`.tumcampus.R
+import de.tum.`in`.tumcampus.util.DateTimeSerializer
+import de.tum.`in`.tumcampus.util.timeAgo
+import es.antonborri.home_widget.HomeWidgetLaunchIntent
+import es.antonborri.home_widget.HomeWidgetProvider
+import java.time.LocalDate
+import java.time.LocalDateTime
+import java.time.Period
+import java.time.format.DateTimeFormatter
+import java.time.format.FormatStyle
+import java.time.format.TextStyle
+import java.util.Locale
+import androidx.core.net.toUri
+
+class CalendarWidgetProvider : HomeWidgetProvider() {
+    override fun onUpdate(
+        context: Context,
+        appWidgetManager: AppWidgetManager,
+        appWidgetIds: IntArray,
+        widgetData: SharedPreferences
+    ) {
+        // There may be multiple widgets active, so update all of them
+        for (appWidgetId in appWidgetIds) {
+            updateAppWidget(context, appWidgetManager, appWidgetId, widgetData)
+        }
+    }
+
+    private fun updateAppWidget(
+        context: Context,
+        appWidgetManager: AppWidgetManager,
+        appWidgetId: Int,
+        widgetData: SharedPreferences
+    ) {
+        // Instantiate the RemoteViews object for the app widget layout.
+        val remoteViews = RemoteViews(context.packageName, R.layout.calendar_widget)
+
+        // Set formatted date in the header
+        val localDate = LocalDate.now()
+        val dateFormatter =
+            DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(Locale.getDefault())
+        val date = localDate.format(dateFormatter)
+        val weekday = localDate.dayOfWeek.getDisplayName(TextStyle.FULL, Locale.getDefault())
+        remoteViews.setTextViewText(R.id.calendar_widget_date, "$weekday, $date")
+
+        // Set last saved date in the header
+        val lastSaved = widgetData.getString("calendar_save", null)
+        val lastSavedDate = DateTimeSerializer.deserializeStringToDate(lastSaved)
+        val lastSavedDateString = (lastSavedDate ?: LocalDateTime.now()).timeAgo(context)
+        remoteViews.setTextViewText(R.id.calendar_widget_updated_on, lastSavedDateString)
+
+        if (lastSavedDate != null && Period.between(
+                LocalDate.now(),
+                lastSavedDate.toLocalDate(),
+            ).days < 14
+        ) {
+            // Set up the intent that starts the calendarWidgetService
+            val intent = Intent(context, CalendarWidgetService::class.java)
+            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId)
+            intent.data = intent.toUri(Intent.URI_INTENT_SCHEME).toUri()
+            remoteViews.setRemoteAdapter(R.id.calendar_widget_listview, intent)
+
+            // The empty view is displayed when the collection has no items.
+            // It should be in the same layout used to instantiate the RemoteViews
+            // object above.
+            remoteViews.setEmptyView(R.id.calendar_widget_listview, R.id.empty_list_item)
+            remoteViews.setViewVisibility(R.id.old_data_item, View.INVISIBLE)
+        } else {
+            remoteViews.setViewVisibility(R.id.old_data_item, View.VISIBLE)
+            remoteViews.setViewVisibility(R.id.calendar_widget_listview, View.INVISIBLE)
+        }
+
+        val pendingIntentWithData = HomeWidgetLaunchIntent.getActivity(
+            context,
+            MainActivity::class.java,
+            "tumCampusApp://message?homeWidget=calendar".toUri()
+        )
+        remoteViews.setOnClickPendingIntent(R.id.calendar_widget, pendingIntentWithData)
+
+        // Instruct the widget manager to update the widget
+        appWidgetManager.updateAppWidget(appWidgetId, remoteViews)
+        appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetId, R.id.calendar_widget_listview)
+    }
+}

android/app/src/main/kotlin/de/tum/in/tumcampus/widgets/calendar/CalendarWidgetService.kt

@@ -2,6 +2,8 @@ package de.tum.`in`.tumcampus.widgets.calendar
 
 import android.content.Context
 import android.content.Intent
+import android.content.res.ColorStateList
+import android.os.Build
 import android.widget.RemoteViews
 import android.widget.RemoteViewsService
 import de.tum.`in`.tumcampus.util.DateTimeUtils
@@ -94,11 +96,19 @@ class CalendarWidgetService : RemoteViewsService() {
             }
 
             // Setup event color
-            remoteViews.setInt(
-                R.id.calendar_widget_event,
-                "setBackgroundColor",
-                currentItem.getEventColor(applicationContext)
-            )
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+                remoteViews.setColorStateList(
+                    R.id.calendar_widget_event,
+                    "setBackgroundTintList",
+                    ColorStateList.valueOf(currentItem.getEventColor(applicationContext))
+                )
+            } else {
+                remoteViews.setInt(
+                    R.id.calendar_widget_event,
+                    "setBackgroundColor",
+                    currentItem.getEventColor(applicationContext)
+                )
+            }
 
             // Setup event title
             remoteViews.setTextViewText(R.id.calendar_widget_event_title, currentItem.title)

android/app/src/main/res/drawable/rounded_background.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+
+    <corners android:radius="8dp" />
+</shape>

android/app/src/main/res/layout/calendar_widget_item.xml

@@ -53,9 +53,10 @@
         android:layout_height="wrap_content"
         android:layout_below="@id/calendar_widget_date_month"
         android:layout_marginStart="30dp"
+        android:background="@drawable/rounded_background"
+        android:backgroundTint="@color/color_primary"
         android:orientation="vertical"
-        android:padding="@dimen/material_small_padding"
-        tools:background="@color/text_dark_gray">
+        android:padding="@dimen/material_small_padding">
 
         <TextView
             android:id="@+id/calendar_widget_event_title"

android/gradle/wrapper/gradle-wrapper.properties

@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.10.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-all.zip

android/settings.gradle

@@ -18,7 +18,7 @@ pluginManagement {
 
 plugins {
     id "dev.flutter.flutter-plugin-loader" version "1.0.0"
-    id "com.android.application" version '8.8.1' apply false
+    id "com.android.application" version '8.9.0' apply false
     id "org.jetbrains.kotlin.android" version "1.9.20" apply false
     id "org.jetbrains.kotlin.plugin.serialization" version "2.0.21" apply false
     id "com.google.gms.google-services" version "4.4.2" apply false

ios/Podfile.lock

@@ -9,14 +9,14 @@ PODS:
   - Firebase/RemoteConfig (11.8.0):
     - Firebase/CoreOnly
     - FirebaseRemoteConfig (~> 11.8.0)
-  - firebase_core (3.12.0):
+  - firebase_core (3.12.1):
     - Firebase/CoreOnly (= 11.8.0)
     - Flutter
-  - firebase_crashlytics (4.3.3):
+  - firebase_crashlytics (4.3.4):
     - Firebase/Crashlytics (= 11.8.0)
     - firebase_core
     - Flutter
-  - firebase_remote_config (5.4.1):
+  - firebase_remote_config (5.4.2):
     - Firebase/RemoteConfig (= 11.8.0)
     - firebase_core
     - Flutter
@@ -52,7 +52,7 @@ PODS:
     - FirebaseSharedSwift (~> 11.0)
     - GoogleUtilities/Environment (~> 8.0)
     - "GoogleUtilities/NSData+zlib (~> 8.0)"
-  - FirebaseRemoteConfigInterop (11.8.0)
+  - FirebaseRemoteConfigInterop (11.9.0)
   - FirebaseSessions (11.8.0):
     - FirebaseCore (~> 11.8.0)
     - FirebaseCoreExtension (~> 11.8.0)
@@ -62,7 +62,7 @@ PODS:
     - GoogleUtilities/UserDefaults (~> 8.0)
     - nanopb (~> 3.30910.0)
     - PromisesSwift (~> 2.1)
-  - FirebaseSharedSwift (11.8.0)
+  - FirebaseSharedSwift (11.9.0)
   - Flutter (1.0.0)
   - flutter_native_splash (2.4.3):
     - Flutter
@@ -136,7 +136,7 @@ PODS:
   - sqlite3_flutter_libs (0.0.1):
     - Flutter
     - FlutterMacOS
-    - sqlite3 (~> 3.49.0)
+    - sqlite3 (~> 3.49.1)
     - sqlite3/dbstatvtab
     - sqlite3/fts5
     - sqlite3/perf-threadsafe
@@ -236,19 +236,19 @@ EXTERNAL SOURCES:
 SPEC CHECKSUMS:
   device_info_plus: 21fcca2080fbcd348be798aa36c3e5ed849eefbe
   Firebase: d80354ed7f6df5f9aca55e9eb47cc4b634735eaf
-  firebase_core: 6cbed78b4f298ed103a9fd034e6dbc846320480f
-  firebase_crashlytics: eb5eb0ef5e6910395adfe177b9ca4a62e8a2f1aa
-  firebase_remote_config: fd021c0d4a6dcf859042b3b74a24cd4d988625c3
+  firebase_core: 8d552814f6c01ccde5d88939fced4ec26f2f5510
+  firebase_crashlytics: 05519be6b623981a77fe54fb52e6061956cb6047
+  firebase_remote_config: ca499f96ddbcc63db863b941bf9f5e6e9a81ceba
   FirebaseABTesting: 7d6eee42b9137541eac2610e5fea3568d956707a
   FirebaseCore: 99fe0c4b44a39f37d99e6404e02009d2db5d718d
   FirebaseCoreExtension: 3d3f2017a00d06e09ab4ebe065391b0bb642565e
   FirebaseCoreInternal: df24ce5af28864660ecbd13596fc8dd3a8c34629
   FirebaseCrashlytics: a1102c035f18d5dd94a5969ee439c526d0c9e313
   FirebaseInstallations: 6c963bd2a86aca0481eef4f48f5a4df783ae5917
   FirebaseRemoteConfig: f63724461fd97f0d62f20021314b59388f3e8ef8
-  FirebaseRemoteConfigInterop: 98897a64aa372eac3c5b3fe2816594ccfaac55ef
+  FirebaseRemoteConfigInterop: 710954a00e956c5fe5144a8e46164f0361389203
   FirebaseSessions: c4d40a97f88f9eaff2834d61b4fea0a522d62123
-  FirebaseSharedSwift: 672954eac7b141d6954fab9a32d45d6b1d922df8
+  FirebaseSharedSwift: 574e6a5602afe4397a55c8d4f767382d620285de
   Flutter: e0871f40cf51350855a761d2e70bf5af5b9b5de7
   flutter_native_splash: c32d145d68aeda5502d5f543ee38c192065986cf
   flutter_secure_storage: 1ed9476fba7e7a782b22888f956cce43e2c62f13
@@ -270,7 +270,7 @@ SPEC CHECKSUMS:
   shared_preferences_foundation: 9e1978ff2562383bd5676f64ec4e9aa8fa06a6f7
   sqflite_darwin: 20b2a3a3b70e43edae938624ce550a3cbf66a3d0
   sqlite3: fc1400008a9b3525f5914ed715a5d1af0b8f4983
-  sqlite3_flutter_libs: 3c323550ef3b928bc0aa9513c841e45a7d242832
+  sqlite3_flutter_libs: f8fc13346870e73fe35ebf6dbb997fbcd156b241
   url_launcher_ios: 694010445543906933d732453a59da0a173ae33d
   video_player_avfoundation: 2cef49524dd1f16c5300b9cd6efd9611ce03639b
 

lib/base/routing/routes.dart

@@ -4,7 +4,7 @@ const locationPermission = "/locationPermission";
 const permissionCheck = "/permissionCheck";
 
 /// Home tab
-const home = "/home";
+const home = "/";
 const departures = "/departures";
 const cafeteriaWidget = "/cafeteriaWidget";
 const closestStudyRoom = "/closestStudyRoom";

lib/calendarComponent/viewModels/calendar_viewmodel.dart

@@ -63,7 +63,7 @@ class CalendarViewModel {
     );
     await HomeWidget.updateWidget(
       iOSName: "CalendarWidget",
-      androidName: "widgets.calendar.CalendarWidget",
+      androidName: "widgets.calendar.CalendarWidgetProvider",
     );
   }