ReactNative - How to call function in ViewController

Question

I'm new to ReactNative and I'm trying Integrate React Native to my current project.

In my ViewController contain RCTRootView and the code implemented like:

ViewController.swift

override func viewDidLoad() {
    super.viewDidLoad()        
    .....
        let bridge = RCTBridge(bundleURL: jsCodeLocation, moduleProvider: nil, launchOptions: nil)

        let reactRootView = RCTRootView(bridge: bridge, moduleName: "Index", initialProperties: props)

        self.view.addSubview(reactRootView);
        reactRootView.frame = self.view.bounds
        reactRootView.delegate = self;
    ....     
}

func onReactEvent(event :NSDictionary , callback: RCTResponseSenderBlock) {}

ReactNativeManager.swift

@objc func sendCustomEventToHost(event: NSDictionary, callback: RCTResponseSenderBlock) -> Void {}

So how can I call onReactEvent() function in my ViewController from function sendCustomEventToHost() in ReactNativeManager. Thanks

Hung Huynh · Accepted Answer · 2016-03-18 06:41:41Z

1

I know how to passing my ViewController to ReactNativeManager using launchOptions

ViewController.swift

let bridge = RCTBridge(bundleURL: jsCodeLocation, moduleProvider: nil, launchOptions: ["controller":self"])

Access from ReactNativeManager.swift

let controller = self.bridge.launchOptions["controller"]

Hope this help!!

answered Mar 18, 2016 at 6:41

Hung Huynh

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Comments

Max Pevsner · Accepted Answer · 2018-12-27 16:06:23Z

0

In ReactNativeManager you have to create an instance of ViewController. For example:

let viewC = ViewController()

and then you just call:

viewC.onReactEvent(....)

edited Dec 27, 2018 at 16:06

Max Pevsner

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answered Mar 18, 2016 at 2:41

Nguyen Hoan

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3 Comments

Hung Huynh Over a year ago

Because I want to use some variables in the ViewController which is initialised before. The code "let viewC = ViewController()" will init the new one have different address. I don't know how to call the method of the parent ViewController which contain RCTRootView

Nguyen Hoan Over a year ago

ReactNativeManager is pushed from ViewController?

Hung Huynh Over a year ago

ReactNativeManager class inherit from RCTBridgeModule, Initiated and its methods are called by React Native view.

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