react-native-screenshot-detector

Note: this project is designed to work with the newer version of React Native library imports, i.e. React Native >= 0.40.0

Getting started

$ npm install react-native-screenshot-detector --save

$ react-native link react-native-screenshot-detector

Usage

iOS

#import<RNScreenshotDetector/RNScreenshotDetector.h>
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// ... setup code// Somewhere React Native will have placed something like
RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL...]
// Somewhere below this you can setup the screenshot detector to listen for events
RNScreenshotDetector* screenshotDetector = [[RNScreenshotDetector alloc] init];
[screenshotDetector setupAndListen:rootView.bridge];
}

In JS

import*asScreenshotDetectorfrom'react-native-screenshot-detector';// Subscribe callback to screenshots:this.eventEmitter=ScreenshotDetector.subscribe(function(){ ... });// Unsubscribe later (a good place would be componentWillUnmount)ScreenshotDetector.unsubscribe(this.eventEmitter);