v9.1.3: fixed instability on some iOS devices when deleting tiles

.github/workflows/main.yml

@@ -13,7 +13,7 @@ jobs:
         runs-on: ubuntu-latest
         steps:
           - name: Checkout Repository
-            uses: actions/checkout@master
+            uses: actions/checkout@v4
           - name: Run Dart Package Analyser
             uses: axel-op/dart-package-analyzer@master
             id: analysis
@@ -35,11 +35,12 @@ jobs:
         runs-on: ubuntu-latest
         steps:
           - name: Checkout Repository
-            uses: actions/checkout@master
+            uses: actions/checkout@v4
           - name: Setup Flutter Environment
-            uses: subosito/flutter-action@main
+            uses: subosito/flutter-action@v2
             with:
               channel: "beta"
+              cache: true
           - name: Get Package Dependencies
             run: flutter pub get
           - name: Get Example Dependencies
@@ -56,11 +57,12 @@ jobs:
         runs-on: ubuntu-latest
         steps:
           - name: Checkout Repository
-            uses: actions/checkout@master
+            uses: actions/checkout@v4
           - name: Setup Flutter Environment
-            uses: subosito/flutter-action@main
+            uses: subosito/flutter-action@v2
             with:
               channel: "beta"
+              cache: true
           - name: Get Dependencies
             run: flutter pub get
           - name: Install ObjectBox Libs For Testing
@@ -77,20 +79,22 @@ jobs:
             working-directory: ./example
         steps:
           - name: Checkout Repository
-            uses: actions/checkout@master
-          - name: Setup Java 17 Environment
-            uses: actions/setup-java@v3
+            uses: actions/checkout@v4
+          - name: Setup Java 21 Environment
+            uses: actions/setup-java@v4
             with:
               distribution: "temurin"
-              java-version: "17"
+              java-version: "21"
+              cache: 'gradle'
           - name: Setup Flutter Environment
-            uses: subosito/flutter-action@main
+            uses: subosito/flutter-action@v2
             with:
               channel: "beta"
+              cache: true
           - name: Build
             run: flutter build apk --obfuscate --split-debug-info=./symbols
           - name: Upload Artifact
-            uses: actions/upload-artifact@v3.1.2
+            uses: actions/upload-artifact@v4
             with:
               name: android-demo
               path: example/build/app/outputs/apk/release
@@ -105,18 +109,19 @@ jobs:
             working-directory: ./example
         steps:
           - name: Checkout Repository
-            uses: actions/checkout@master
+            uses: actions/checkout@v4
           - name: Setup Flutter Environment
-            uses: subosito/flutter-action@main
+            uses: subosito/flutter-action@v2
             with:
               channel: "beta"
+              cache: true
           - name: Build
             run: flutter build windows --obfuscate --split-debug-info=./symbols
           - name: Create Installer
             run: iscc "windowsApplicationInstallerSetup.iss"
             working-directory: .
           - name: Upload Artifact
-            uses: actions/upload-artifact@v3.1.2
+            uses: actions/upload-artifact@v4
             with:
               name: windows-demo
               path: windowsTemp/WindowsApplication.exe
@@ -131,9 +136,9 @@ jobs:
             working-directory: ./tile_server
         steps:
           - name: Checkout Repository
-            uses: actions/checkout@master
+            uses: actions/checkout@v4
           - name: Setup Dart Environment
-            uses: dart-lang/setup-dart@v1.6.2
+            uses: dart-lang/setup-dart@v1
           - name: Get Dependencies
             run: dart pub get
           - name: Get Dart Dependencies
@@ -143,7 +148,7 @@ jobs:
           - name: Compile
             run: dart compile exe bin/tile_server.dart
           - name: Upload Artifact
-            uses: actions/upload-artifact@v4.3.1
+            uses: actions/upload-artifact@v4
             with:
               name: windows-ts
               path: tile_server/bin/tile_server.exe
@@ -158,17 +163,17 @@ jobs:
             working-directory: ./tile_server
         steps:
           - name: Checkout Repository
-            uses: actions/checkout@master
+            uses: actions/checkout@v4
           - name: Setup Dart Environment
-            uses: dart-lang/setup-dart@v1.6.2
+            uses: dart-lang/setup-dart@v1
           - name: Get Dependencies
             run: dart pub get
           - name: Run Pre-Compile Generator
             run: dart run bin/generate_dart_images.dart
           - name: Compile
             run: dart compile exe bin/tile_server.dart
           - name: Upload Artifact
-            uses: actions/upload-artifact@v3.1.2
+            uses: actions/upload-artifact@v4
             with:
               name: linux-ts
               path: tile_server/bin/tile_server.exe

CHANGELOG.md

@@ -18,6 +18,11 @@ Many thanks to my sponsors, no matter how much or how little they donated. Spons
 
 # Changelog
 
+## [9.1.3] - 2024/08/19
+
+* Fixed bug where any operation that attempted to delete tiles fatally crashed on some iOS devices  
+  This appears to be an [ObjectBox issue](https://github.com/objectbox/objectbox-dart/issues/654) where streaming the results of a database query caused the crash. Instead, FMTC now uses a custom chunking system to avoid streaming and also avoid loading potentially many tiles into memory.
+
 ## [9.1.2] - 2024/08/07
 
 * Fixed compilation on web platforms: FMTC now internally overrides the `FMTCObjectBoxBackend` and becomes a no-op

example/android/.gitignore

@@ -7,7 +7,7 @@ gradle-wrapper.jar
 GeneratedPluginRegistrant.java
 
 # Remember to never publicly share your keystore.
-# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+# See https://flutter.dev/to/reference-keystore
 key.properties
 **/*.keystore
 **/*.jks

example/android/app/build.gradle

@@ -5,40 +5,27 @@ plugins {
     id "dev.flutter.flutter-gradle-plugin"
 }
 
-def localProperties = new Properties()
-def localPropertiesFile = rootProject.file("local.properties")
-if (localPropertiesFile.exists()) {
-    localPropertiesFile.withReader("UTF-8") { reader ->
-        localProperties.load(reader)
-    }
-}
-
-def flutterVersionCode = localProperties.getProperty("flutter.versionCode")
-if (flutterVersionCode == null) {
-    flutterVersionCode = "9"
-}
-
-def flutterVersionName = localProperties.getProperty("flutter.versionName")
-if (flutterVersionName == null) {
-    flutterVersionName = "9.0"
-}
-
 android {
     namespace = "dev.jaffaketchup.fmtc.demo"
     compileSdk = flutter.compileSdkVersion
-    ndkVersion = flutter.ndkVersion
+    // ndkVersion = flutter.ndkVersion
+    ndkVersion = "26.1.10909125"
 
     compileOptions {
         sourceCompatibility = JavaVersion.VERSION_1_8
         targetCompatibility = JavaVersion.VERSION_1_8
     }
 
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8
+    }
+
     defaultConfig {
         applicationId = "dev.jaffaketchup.fmtc.demo"
         minSdk = flutter.minSdkVersion
         targetSdk = flutter.targetSdkVersion
-        versionCode = flutterVersionCode.toInteger()
-        versionName = flutterVersionName
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
     }
 
     buildTypes {

example/android/build.gradle

@@ -8,23 +8,11 @@ allprojects {
 rootProject.buildDir = "../build"
 
 subprojects {
-    afterEvaluate { project ->
-        if (project.hasProperty('android')) {
-            project.android {
-                if (namespace == null) {
-                    namespace project.group
-                }
-            }
-        }
-    }
-
     project.buildDir = "${rootProject.buildDir}/${project.name}"
-}
-
-subprojects {
     project.evaluationDependsOn(":app")
 }
 
 tasks.register("clean", Delete) {
     delete rootProject.buildDir
-}
+}
+

example/android/gradle.properties

@@ -1,6 +1,3 @@
-org.gradle.jvmargs=-Xmx4G -XX:+HeapDumpOnOutOfMemoryError
+org.gradle.jvmargs=-Xmx4G -XX:MaxMetaspaceSize=2G -XX:+HeapDumpOnOutOfMemoryError
 android.useAndroidX=true
 android.enableJetifier=true
-android.defaults.buildfeatures.buildconfig=true
-android.nonTransitiveRClass=false
-android.nonFinalResIds=false

example/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-8.0-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-all.zip

example/android/settings.gradle

@@ -18,8 +18,8 @@ pluginManagement {
 
 plugins {
     id "dev.flutter.flutter-plugin-loader" version "1.0.0"
-    id "com.android.application" version '8.0.1' apply false
-    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+    id "com.android.application" version '8.5.2' apply false
+    id "org.jetbrains.kotlin.android" version "1.8.22" apply false
 }
 
 include ":app"

example/pubspec.yaml

@@ -3,7 +3,7 @@ description: The example application for 'flutter_map_tile_caching', showcasing
   it's functionality and use-cases.
 publish_to: "none"
 
-version: 9.1.2
+version: 9.1.3
 
 environment:
   sdk: ">=3.3.0 <4.0.0"
@@ -12,7 +12,6 @@ environment:
 dependencies:
   auto_size_text: ^3.0.0
   badges: ^3.1.2
-  better_open_file: ^3.6.5
   collection: ^1.18.0
   dart_earcut: ^1.1.0
   file_picker: ^8.0.3
@@ -32,7 +31,6 @@ dependencies:
   provider: ^6.1.2
   stream_transform: ^2.1.0
   validators: ^3.0.0
-  version: ^3.0.2
 
 dependency_overrides:
   flutter_map_tile_caching:

lib/src/backend/impls/objectbox/backend/backend.dart

@@ -5,6 +5,7 @@ import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 import 'dart:isolate';
+import 'dart:math';
 
 import 'package:collection/collection.dart';
 import 'package:flutter/material.dart';