this should fix the crash on andorid

Author: KimthoHey

android/src/main/java/com/facebook/reactnative/androidsdk/FBLoginButtonManager.java

@@ -49,7 +49,8 @@ public String getName() {
 
     @Override
     public RCTLoginButton createViewInstance(ThemedReactContext context) {
-        return new RCTLoginButton(context, mActivityEventListener.getCallbackManager());
+        RCTLoginButton loginButton = new RCTLoginButton(context, mActivityEventListener.getCallbackManager());
+        return loginButton;
     }
 
     @ReactProp(name = "loginBehaviorAndroid")

android/src/main/java/com/facebook/reactnative/androidsdk/RCTLoginButton.java

@@ -49,7 +49,8 @@ public RCTLoginButton(ThemedReactContext context, CallbackManager callbackManage
         super(context);
         this.setToolTipMode(ToolTipMode.NEVER_DISPLAY);
         mCallbackManager = callbackManager;
-        mEventDispatcher = UIManagerHelper.getEventDispatcherForReactTag((ReactContext) getContext(), getId());
+        // Don't initialize EventDispatcher here - it will be null until the view is mounted
+        mEventDispatcher = null;
         init();
     }
 
@@ -62,9 +63,7 @@ protected void onCurrentAccessTokenChanged(
                 if (currentAccessToken == null) {
                     WritableMap event = Arguments.createMap();
                     event.putString("type", "logoutFinished");
-                    ReactContext context = (ReactContext) getContext();
-                    mEventDispatcher.dispatchEvent(new RCTLoginButtonEvent(UIManagerHelper.getSurfaceId(context), getId(), event));
-
+                    dispatchEvent(event);
                 }
             }
         };
@@ -85,8 +84,7 @@ public void onSuccess(LoginResult loginResult) {
                         Arguments.fromJavaArgs(
                                 setToStringArray(loginResult.getRecentlyDeniedPermissions())));
                 event.putMap("result", result);
-                ReactContext context = (ReactContext) getContext();
-                mEventDispatcher.dispatchEvent(new RCTLoginButtonEvent(UIManagerHelper.getSurfaceId(context), getId(), event));
+                dispatchEvent(event);
             }
 
             @Override
@@ -97,8 +95,7 @@ public void onError(FacebookException error) {
                 WritableMap result = Arguments.createMap();
                 result.putBoolean("isCancelled", false);
                 event.putMap("result", result);
-                ReactContext context = (ReactContext) getContext();
-                mEventDispatcher.dispatchEvent(new RCTLoginButtonEvent(UIManagerHelper.getSurfaceId(context), getId(), event));
+                dispatchEvent(event);
             }
 
             @Override
@@ -109,8 +106,7 @@ public void onCancel() {
                 WritableMap result = Arguments.createMap();
                 result.putBoolean("isCancelled", true);
                 event.putMap("result", result);
-                ReactContext context = (ReactContext) getContext();
-                mEventDispatcher.dispatchEvent(new RCTLoginButtonEvent(UIManagerHelper.getSurfaceId(context), getId(), event));
+                dispatchEvent(event);
             }
         });
     }
@@ -123,4 +119,33 @@ private String[] setToStringArray(Set<String> set) {
         }
         return array;
     }
+
+    public void initializeEventDispatcher() {
+        if (mEventDispatcher == null) {
+            ReactContext context = (ReactContext) getContext();
+            // Only try to get the EventDispatcher if we have a valid ID
+            if (getId() != -1) {
+                mEventDispatcher = UIManagerHelper.getEventDispatcherForReactTag(context, getId());
+            }
+        }
+    }
+
+    private void dispatchEvent(WritableMap event) {
+        initializeEventDispatcher();
+        if (mEventDispatcher != null && getId() != -1 && isAttachedToWindow()) {
+            ReactContext context = (ReactContext) getContext();
+            try {
+                mEventDispatcher.dispatchEvent(new RCTLoginButtonEvent(UIManagerHelper.getSurfaceId(context), getId(), event));
+            } catch (Exception e) {
+                // Silently handle any remaining edge cases to prevent crashes
+                android.util.Log.w("RCTLoginButton", "Failed to dispatch event: " + e.getMessage());
+            }
+        }
+    }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        initializeEventDispatcher();
+    }
 }

package.json

@@ -137,6 +137,14 @@
     "parser": "typescript"
   },
   "react-native": "src/index.ts",
+  "codegenConfig": {
+    "name": "RNFBSDKSpec",
+    "type": "components",
+    "jsSrcsDir": "src/specs",
+    "android": {
+      "javaPackageName": "com.facebook.reactnative.androidsdk"
+    }
+  },
   "react-native-builder-bob": {
     "source": "src",
     "output": "lib",

src/specs/RCTFBLoginButtonNativeComponent.ts

@@ -0,0 +1,38 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import type {ViewProps} from 'react-native';
+import type {HostComponent} from 'react-native';
+import type {DirectEventHandler} from 'react-native/Libraries/Types/CodegenTypes';
+import codegenNativeComponent from 'react-native/Libraries/Utilities/codegenNativeComponent';
+
+interface LoginFinishedEvent {
+  readonly type: string;
+  readonly error?: string;
+  readonly result?: {
+    readonly isCancelled: boolean;
+    readonly grantedPermissions?: ReadonlyArray<string>;
+    readonly declinedPermissions?: ReadonlyArray<string>;
+  };
+}
+
+interface NativeProps extends ViewProps {
+  // Props
+  permissions?: ReadonlyArray<string>;
+  defaultAudience?: string;
+  loginBehaviorAndroid?: string;
+  tooltipBehaviorIOS?: string;
+  nonceIOS?: string;
+  loginTrackingIOS?: string;
+  
+  // Events
+  onChange?: DirectEventHandler<LoginFinishedEvent>;
+}
+
+export default codegenNativeComponent<NativeProps>('RCTFBLoginButton') as HostComponent<NativeProps>;

src/specs/RCTFBSendButtonNativeComponent.ts

@@ -0,0 +1,30 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import type {ViewProps} from 'react-native';
+import type {HostComponent} from 'react-native';
+import codegenNativeComponent from 'react-native/Libraries/Utilities/codegenNativeComponent';
+
+interface ShareContent {
+  readonly contentType: string;
+  readonly contentUrl?: string;
+  readonly contentTitle?: string;
+  readonly contentDescription?: string;
+  readonly imageUrl?: string;
+  readonly peopleIds?: ReadonlyArray<string>;
+  readonly placeId?: string;
+  readonly ref?: string;
+}
+
+interface NativeProps extends ViewProps {
+  // Props
+  shareContent?: ShareContent;
+}
+
+export default codegenNativeComponent<NativeProps>('RCTFBSendButton') as HostComponent<NativeProps>;

src/specs/RCTFBShareButtonNativeComponent.ts

@@ -0,0 +1,30 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import type {ViewProps} from 'react-native';
+import type {HostComponent} from 'react-native';
+import codegenNativeComponent from 'react-native/Libraries/Utilities/codegenNativeComponent';
+
+interface ShareContent {
+  readonly contentType: string;
+  readonly contentUrl?: string;
+  readonly contentTitle?: string;
+  readonly contentDescription?: string;
+  readonly imageUrl?: string;
+  readonly peopleIds?: ReadonlyArray<string>;
+  readonly placeId?: string;
+  readonly ref?: string;
+}
+
+interface NativeProps extends ViewProps {
+  // Props
+  shareContent?: ShareContent;
+}
+
+export default codegenNativeComponent<NativeProps>('RCTFBShareButton') as HostComponent<NativeProps>;