Adapt to the official engine's App Lifecycle state changes.

CHANGELOG.md

@@ -1,4 +1,5 @@
 ## NEXT
+1. Adapt to the official engine's App Lifecycle state changes
 
 ## 5.0.1
 1. Add `mixin` modifier to avoid breaking user codes

android/src/main/java/com/idlefish/flutterboost/FlutterBoostPlugin.java

@@ -28,8 +28,9 @@ public class FlutterBoostPlugin implements FlutterPlugin, NativeRouterApi, Activ
     private static final String TAG = "FlutterBoost_java";
     private static final String APP_LIFECYCLE_CHANGED_KEY = "app_lifecycle_changed_key";
     private static final String LIFECYCLE_STATE = "lifecycleState";
-    private static final int FLUTTER_APP_STATE_RESUMED = 0;
-    private static final int FLUTTER_APP_STATE_PAUSED = 2;
+    // See https://github.com/flutter/engine/pull/42418 for details
+    private static final int FLUTTER_APP_STATE_RESUMED = 1;
+    private static final int FLUTTER_APP_STATE_PAUSED = 4;
 
     private FlutterEngine engine;
     private FlutterRouterApi channel;

example/ios/Podfile

@@ -1,5 +1,5 @@
 # Uncomment this line to define a global platform for your project
-# platform :ios, '9.0'
+platform :ios, '11.0'
 
 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'

ios/Classes/container/FBLifecycle.m

@@ -31,14 +31,14 @@
 @implementation FBLifecycle
 + (void)pause {
   [[FlutterBoost instance]sendEventToFlutterWith:@"app_lifecycle_changed_key"
-                                       arguments:@{@"lifecycleState":@2}];
+                                       arguments:@{@"lifecycleState":@4}];
   if (ENGINE.viewController != nil){
     ENGINE.viewController = nil;
   }
 }
 
 + (void)resume {
   [[FlutterBoost instance]sendEventToFlutterWith:@"app_lifecycle_changed_key"
-                                       arguments:@{@"lifecycleState":@0}];
+                                       arguments:@{@"lifecycleState":@1}];
 }
 @end

lib/src/boost_flutter_binding.dart

@@ -14,7 +14,6 @@ mixin BoostFlutterBinding on WidgetsFlutterBinding {
   void initInstances() {
     super.initInstances();
     _instance = this;
-    changeAppLifecycleState(AppLifecycleState.resumed);
   }
 
   static BoostFlutterBinding? get instance => _instance;

lib/src/flutter_boost_app.dart

@@ -122,9 +122,10 @@ class FlutterBoostAppState extends State<FlutterBoostApp> {
   void _addAppLifecycleStateEventListener() {
     _lifecycleStateListenerRemover = BoostChannel.instance
         .addEventListener(_appLifecycleChangedKey, (key, arguments) {
-      //we just deal two situation,resume and pause
-      //and 0 is resumed
-      //and 2 is paused
+      // we just deal two situation,resume and pause
+      // and 1 is resumed
+      // and 4 is paused
+      // See https://github.com/flutter/engine/pull/42418 for more details.
 
       final int? index = arguments["lifecycleState"];