React UI Manager bridge to use with Swift

RCTUIManager+Swift.h

//
//  RCTUIManager+Swift.h
//  RCTUIManager+Swift
//
//  Created by Remi Santos on 30/06/15.
//  Copyright © 2015 Facebook. All rights reserved.
//

#import "RCTUIManager.h"
#import "RCTSParseArray.h"

@interface RCTUIManager (Swift)

-(void)swift_addUIBlock:(void (^)(RCTUIManager*, RCTSparseArray*))block;

@end

RCTUIManager+Swift.m

//
//  RCTUIManager+Swift.m
//  RCTUIManager+Swift
//
//  Created by Remi Santos on 30/06/15.
//  Copyright © 2015 Facebook. All rights reserved.
//

#import "RCTUIManager+Swift.h"

@implementation RCTUIManager (Swift)

-(void)swift_addUIBlock:(void (^)(RCTUIManager*, RCTSparseArray*))block {
  [self addUIBlock:^(RCTUIManager *uiManager, RCTSparseArray*viewRegistry) {
    block(uiManager, viewRegistry);
  }];
}

@end

It allows you to write this in Swift

uiManager.swift_addUIBlock { (uiManager, viewRegistry) -> Void in
      // Do whatever you want
}