fix binaryMessenger in FlutterAppDelegate (#4030)

e5395796 · Sarah Zakarias · GitHub · 60bce44c · e5395796
隐藏空白更改
内联并排

Showing with 5 addition and 1 deletion

shell/platform/darwin/ios/framework/Source/FlutterAppDelegate.mm ...latform/darwin/ios/framework/Source/FlutterAppDelegate.mm +5 -1

未找到文件。
--- a/shell/platform/darwin/ios/framework/Source/FlutterAppDelegate.mm
+++ b/shell/platform/darwin/ios/framework/Source/FlutterAppDelegate.mm
@@ -214,7 +214,11 @@

 // TODO(xster): move when doing https://github.com/flutter/flutter/issues/3671.
 - (NSObject<FlutterBinaryMessenger>*)binaryMessenger {
-  return self.rootFlutterViewController;
+  UIViewController* rootViewController = _window.rootViewController;
+  if ([rootViewController conformsToProtocol:@protocol(FlutterBinaryMessenger)]) {
+    return (NSObject<FlutterBinaryMessenger>*)rootViewController;
+  }
+  return nil;
 }

 - (NSObject<FlutterPluginRegistrar>*)registrarForPlugin:(NSString*)pluginKey {