From 3fdb106f31a8be5e0766a439632e36f2fa036094 Mon Sep 17 00:00:00 2001
From: Jean-Baptiste LARRIVIERE
 <76693792+jblarriviere@users.noreply.github.com>
Date: Wed, 18 Jan 2023 06:42:39 -0800
Subject: [PATCH] feat: add initialProps property to RCTAppDelegate (#35848)

Summary:
Hi there,

While upgrading to 0.71 we realised the RCTAppDelegate doesn't offer a way to set custom `initProps` that would depend on `launchOptions`.

This PR adds an `initialProps` property to the RCTAppDelegate. This would let us set this property based on `launchOptions` in our implementation of `didFinishLaunchingWithOptions` before calling `[super didFinishLaunchingWithOptions]`

Thanks !

## Changelog

[IOS] [ADDED] - Add `initialProps` property to `RCTAppDelegate`

Pull Request resolved: https://github.com/facebook/react-native/pull/35848

Reviewed By: rshest

Differential Revision: D42543027

Pulled By: cipolleschi

fbshipit-source-id: 55374914890445f8193c12a06a943b7796edb457
---
 Libraries/AppDelegate/RCTAppDelegate.h  | 1 +
 Libraries/AppDelegate/RCTAppDelegate.mm | 2 +-
 template/ios/HelloWorld/AppDelegate.mm  | 4 ++++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/Libraries/AppDelegate/RCTAppDelegate.h b/Libraries/AppDelegate/RCTAppDelegate.h
index e4e987ad6f0085..b66b994d2c2c43 100644
--- a/Libraries/AppDelegate/RCTAppDelegate.h
+++ b/Libraries/AppDelegate/RCTAppDelegate.h
@@ -55,6 +55,7 @@
 @property (nonatomic, strong) UIWindow *window;
 @property (nonatomic, strong) RCTBridge *bridge;
 @property (nonatomic, strong) NSString *moduleName;
+@property (nonatomic, strong) NSDictionary *initialProps;
 
 /**
  * It creates a `RCTBridge` using a delegate and some launch options.
diff --git a/Libraries/AppDelegate/RCTAppDelegate.mm b/Libraries/AppDelegate/RCTAppDelegate.mm
index c498409d051514..e8356af5a0dcf8 100644
--- a/Libraries/AppDelegate/RCTAppDelegate.mm
+++ b/Libraries/AppDelegate/RCTAppDelegate.mm
@@ -84,7 +84,7 @@ - (BOOL)concurrentRootEnabled
 
 - (NSDictionary *)prepareInitialProps
 {
-  NSMutableDictionary *initProps = [NSMutableDictionary new];
+  NSMutableDictionary *initProps = self.initialProps ? [self.initialProps mutableCopy] : [NSMutableDictionary new];
 
 #ifdef RCT_NEW_ARCH_ENABLED
   initProps[kRNConcurrentRoot] = @([self concurrentRootEnabled]);
diff --git a/template/ios/HelloWorld/AppDelegate.mm b/template/ios/HelloWorld/AppDelegate.mm
index 0cfc4310dd702e..f1de5a6ae1bdd0 100644
--- a/template/ios/HelloWorld/AppDelegate.mm
+++ b/template/ios/HelloWorld/AppDelegate.mm
@@ -7,6 +7,10 @@ @implementation AppDelegate
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
 {
   self.moduleName = @"HelloWorld";
+  // You can add your custom initial props in the dictionary below.
+  // They will be passed down to the ViewController used by React Native.
+  self.initialProps = @{};
+
   return [super application:application didFinishLaunchingWithOptions:launchOptions];
 }