Add onAnnotationTapped event for the UI Component

[radazzouz]

The iOS implementation of #83

---

• Adds an event (onAnnotationTapped) for when the annotation is tapped.
• Adds the ability to disable the default action for tapped annotations via disableDefaultActionForTappedAnnotations

---

How to test

• Create a new React Native sample app: https://github.com/PSPDFKit/react-native#ios
• For step 4, use this branch: yarn add github:PSPDFKit/react-native#rad/add-onAnnotationTapped-ios
• For step 15, use the following code in your App.js

import React, { Component } from 'react';
import { NativeModules } from 'react-native';
import PSPDFKitView from 'react-native-pspdfkit'

var PSPDFKit = NativeModules.PSPDFKit;
PSPDFKit.setLicenseKey('YOUR_LICENSE_KEY_GOES_HERE');

export default class App extends Component<{}> {
  render() {
    return (
      <PSPDFKitView
        document={'document.pdf'}
        configuration={{
          pageTransition: 'scrollContinuous',
          scrollDirection: 'vertical',
          documentLabelEnabled: true,
        }}
        style={{ flex: 1, color: '#267AD4' }}
        disableDefaultActionForTappedAnnotations={true}
        onAnnotationTapped={this.onAnnotationTapped}
      />
    )
  }
  onAnnotationTapped(event) {
      alert('tapped on Annotation: ' + JSON.stringify(event));
  }
}

• Launch the app
• Add a new annotation
• Exit the annotation mode by closing the annotation toolbar
• Tap on the added annotation
• Observe the alert

What to test:

• Make sure that there are now issues on Android and Windows

[steviki]

Looks good! 👍

[nickwinder]

👍 Does not touch windows.

[simoarpe]

Looks good 👌