Merge pull request #570 from lopo12123/master

README.md

@@ -115,7 +115,7 @@ Buy the writer a cup of coffee。
 ![subscribe](https://gitee.com/OpenFlutter/resoures-repository/raw/master/fluwx/wx_subscription.png)
 
 
-## Start history
+## Star history
 
 ![stars](https://starchart.cc/OpenFlutter/fluwx.svg)
 

doc/LAUNCH_APP_FROM_H5.md

+## WeChat reference document
 
-## IOS
-Please register your WXApi in your `AppDelegate`:
-```oc
-- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
-    //向微信注册
-[[FluwxDelegate defaultManager] registerWxAPI:@"" universalLink:@""];
-    return YES;
+- [WeChat open label jumps to APP: <wx-open-launch-app>](https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_Open_Tag.html#%E8%B7%B3%E8%BD%ACAPP%EF%BC%9Awx-open-launch-app)
+- [App gets the extinfo data in the open tag <wx-open-launch-app>](https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/APP_GET_EXTINF.html)
+
+## Platform differences
+
+- The event type of **Launch-App-From-H5** on Android is `WeChatShowMessageFromWXRequest`
+- The event type of **Launch-App-From-H5** on IOS is `WeChatLaunchFromWXRequest`
+
+## Example
+
+```dart
+void handle_launch_from_h5() {
+  Fluwx fluwx = Fluwx();
+
+  fluwx.addSubscriber((response) {
+    // 1. Handle responses separately for android and ios
+    if (response is WeChatShowMessageFromWXRequest) {
+      debugPrint("launch-app-from-h5 on android");
+      // do something here only for android after launch from wechat
+    } else if (response is WeChatLaunchFromWXRequest) {
+      debugPrint("launch-app-from-h5 on ios");
+      // do something here only for android after launch from wechat
+    }
+
+    // 2. Or handling responses together for android and ios
+    if (response is WeChatLaunchFromWXRequest ||
+        response is WeChatShowMessageFromWXRequest) {
+      debugPrint("launch-app-from-h5");
+      // do something here for both android and ios after launch from wechat
+    }
+  });
 }
 ```
 
-> If you want to get ext from website, please call ``fluwx.getExtMsg()`。`For details, please read the example.
+> If you want to get ext from website, please call `fluwx.getExtMsg()`。For details, please read the example project.
\ No newline at end of file

doc/LAUNCH_APP_FROM_H5_CN.md

+## 微信参考文档
 
-## IOS
-请在你的`AppDelegate`中主动注册`WXApi`
-```oc
-- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
-    //向微信注册
-[[FluwxDelegate defaultManager] registerWxAPI:@"" universalLink:@""];
-    return YES;
+- [微信开放标签 <wx-open-launch-app> 跳转App](https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_Open_Tag.html#%E8%B7%B3%E8%BD%ACAPP%EF%BC%9Awx-open-launch-app)
+- [App获取开放标签 <wx-open-launch-app> 中的 extinfo 数据](https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/APP_GET_EXTINF.html)
+
+## 平台差异
+
+- 安卓端 **微信唤起App** 的事件类型为 `WeChatShowMessageFromWXRequest`
+- IOS端 **微信唤起App** 的事件类型为 `WeChatLaunchFromWXRequest`
+
+## 示例
+
+```dart
+void handle_launch_from_h5() {
+  Fluwx fluwx = Fluwx();
+
+  fluwx.addSubscriber((response) {
+    // 1. 为安卓和ios分开处理响应
+    if (response is WeChatShowMessageFromWXRequest) {
+      debugPrint("launch-app-from-h5 on android");
+      // 从微信启动后，在这里只为 android 做一些事情
+    } else if (response is WeChatLaunchFromWXRequest) {
+      debugPrint("launch-app-from-h5 on ios");
+      // 从微信启动后，在这里只为 ios 做一些事情
+    }
+
+    // 2. 或者为安卓和ios一起处理响应
+    if (response is WeChatLaunchFromWXRequest ||
+        response is WeChatShowMessageFromWXRequest) {
+      debugPrint("launch-app-from-h5");
+      // 从微信启动后，在这里为 android 和 ios 做一些事情
+    }
+  });
 }
 ```
 
-> 如你想主动获取从网页传进来的值 ，请主动调用`fluwx.getExtMsg()`。更多信息请参考example.
-
+> 如你想主动获取从网页传进来的值 ，请主动调用`fluwx.getExtMsg()`。更多信息请参考example项目.

ios/Classes/FluwxPlugin.m

@@ -48,6 +48,8 @@ typedef void(^FluwxWXReqRunnable)(void);
     BOOL _isRunning;
     BOOL _attemptToResumeMsgFromWxFlag;
     FluwxWXReqRunnable _attemptToResumeMsgFromWxRunnable;
+    // cache open url request when WXApi is not registered, and handle it once WXApi is registered
+    FluwxWXReqRunnable _cachedOpenUrlRequest;
 }
 
 const NSString *errStr = @"errStr";
@@ -205,6 +207,28 @@ NSObject <FlutterPluginRegistrar> *_fluwxRegistrar;
     }
 
     BOOL isWeChatRegistered = [WXApi registerApp:appId universalLink:universalLink];
+
+    // If registration fails, we can return immediately
+    if(!isWeChatRegistered){
+        result(@(isWeChatRegistered));
+        _isRunning = NO;
+        return;
+    }
+
+    // Otherwise, since WXApi is now registered successfully,
+    // we can (and should) immediately handle the previously cached `app:openURL` event (if any)
+    if (_cachedOpenUrlRequest != nil) {
+        _cachedOpenUrlRequest();
+        _cachedOpenUrlRequest = nil;
+    }
+
+    // Set `_isRunning` after calling `_cachedOpenUrlRequest` to ensure that
+    // the `onReq` triggered by this call to `_cachedOpenUrlRequest` will
+    // be stored in `_attemptToResumeMsgFromWxRunnable` which can be obtained
+    // by triggering `attemptToResumeMsgFromWx`.
+    //
+    // At the same time, this also coincides with the approach on the Android side:
+    // cold start events are cached and triggered through `attemptToResumeMsgFromWx`
     _isRunning = isWeChatRegistered;
 
     result(@(isWeChatRegistered));
@@ -370,27 +394,55 @@ NSObject <FlutterPluginRegistrar> *_fluwxRegistrar;
 }
 
 
+// Deprecated since iOS 9
+// See https://developer.apple.com/documentation/uikit/uiapplicationdelegate/1623073-application?language=objc
+// Use `application:openURL:options:` instead.
 - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
+    // Since flutter has minimum iOS version requirement of 11.0, we don't need to change the implementation here.
     return [WXApi handleOpenURL:url delegate:self];
 }
 
+// Deprecated since iOS 9
+// See https://developer.apple.com/documentation/uikit/uiapplicationdelegate/1622964-application?language=objc
+// Use `application:openURL:options:` instead.
 - (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
+    // Since flutter has minimum iOS version requirement of 11.0, we don't need to change the implementation here.
     return [WXApi handleOpenURL:url delegate:self];
 }
 
-// NOTE: 9.0以后使用新API接口
+// Available on iOS 9.0 and later
+// See https://developer.apple.com/documentation/uikit/uiapplicationdelegate/1623112-application?language=objc
 - (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<NSString *, id> *)options {
-    return [WXApi handleOpenURL:url delegate:self];
+    // ↓ previous solution -- according to document, this may fail if the WXApi hasn't registered yet.
+    // return [WXApi handleOpenURL:url delegate:self];
+
+    if (_isRunning) {
+        // registered -- directly handle open url request by WXApi
+        return [WXApi handleOpenURL:url delegate:self];
+    }else {
+        // unregistered -- cache open url request and handle it once WXApi is registered
+        __weak typeof(self) weakSelf = self;
+        _cachedOpenUrlRequest = ^() {
+          __strong typeof(weakSelf) strongSelf = weakSelf;
+          [WXApi handleOpenURL:url delegate:strongSelf];
+        };
+
+
+        // simply return YES to indicate that we can handle open url request later
+        return YES;
+    }
 }
 
 #ifndef SCENE_DELEGATE
 - (BOOL)application:(UIApplication *)application continueUserActivity:(NSUserActivity *)userActivity restorationHandler:(void (^)(NSArray * _Nonnull))restorationHandler{
-        return [WXApi handleOpenUniversalLink:userActivity delegate:self];
+    // TODO: (if need) cache userActivity and handle it once WXApi is registered
+    return [WXApi handleOpenUniversalLink:userActivity delegate:self];
 }
 #endif
 
 #ifdef SCENE_DELEGATE
 - (void)scene:(UIScene *)scene continueUserActivity:(NSUserActivity *)userActivity  API_AVAILABLE(ios(13.0)){
+    // TODO: (if need) cache userActivity and handle it once WXApi is registered
     [WXApi handleOpenUniversalLink:userActivity delegate:self];
 }
 #endif
@@ -1016,7 +1068,7 @@ NSObject <FlutterPluginRegistrar> *_fluwxRegistrar;
     if ([req isKindOfClass:[GetMessageFromWXReq class]]) {
 
     } else if ([req isKindOfClass:[ShowMessageFromWXReq class]]) {
-//onWXLaunchFromWX
+        // ShowMessageFromWXReq -- android spec
         ShowMessageFromWXReq *showMessageFromWXReq = (ShowMessageFromWXReq *) req;
         WXMediaMessage *wmm = showMessageFromWXReq.message;
 
@@ -1026,6 +1078,7 @@ NSObject <FlutterPluginRegistrar> *_fluwxRegistrar;
         [result setValue:showMessageFromWXReq.lang forKey:@"lang"];
         [result setValue:showMessageFromWXReq.country forKey:@"country"];
 
+        // Cache extMsg for later use (by calling 'getExtMsg')
         [FluwxDelegate defaultManager].extMsg= wmm.messageExt;
 
         if (_isRunning) {
@@ -1039,6 +1092,7 @@ NSObject <FlutterPluginRegistrar> *_fluwxRegistrar;
         }
 
     } else if ([req isKindOfClass:[LaunchFromWXReq class]]) {
+        // ShowMessageFromWXReq -- ios spec
         LaunchFromWXReq *launchFromWXReq = (LaunchFromWXReq *) req;
         WXMediaMessage *wmm = launchFromWXReq.message;
 
@@ -1048,6 +1102,8 @@ NSObject <FlutterPluginRegistrar> *_fluwxRegistrar;
         [result setValue:launchFromWXReq.lang forKey:@"lang"];
         [result setValue:launchFromWXReq.country forKey:@"country"];
 
+        // Cache extMsg for later use (by calling 'getExtMsg')
+        [FluwxDelegate defaultManager].extMsg= wmm.messageExt;
 
         if (_isRunning) {
             [_channel invokeMethod:@"onWXLaunchFromWX" arguments:result];
@@ -1058,8 +1114,6 @@ NSObject <FlutterPluginRegistrar> *_fluwxRegistrar;
                 [strongSelf->_channel invokeMethod:@"onWXLaunchFromWX" arguments:result];
             };
         }
-
-
     }
 
 }
@@ -1067,7 +1121,7 @@ NSObject <FlutterPluginRegistrar> *_fluwxRegistrar;
 - (void)sendText:(NSString *)text
          InScene:(enum WXScene)scene
       completion:(void (^ __nullable)(BOOL success))completion {
-    
+
     SendMessageToWXReq *req = [[SendMessageToWXReq alloc] init];
       req.scene = scene;
       req.bText = YES;