React image pan and zoom for Android

This is still very basic since I am quite new to React. There is plenty of room for improvment by adding additional react bindings for props and callbacks.

Include in your App

Installation

Install the npm package react-native-image-zoom. Inside your React Native project, run (example):

npm install --save react-native-image-zoom

In android/settings.gradle, remove the line include ':app' and add the following lines

include :react-native-image-zoom'
project(':react-native-image-zoom').projectDir = file('../node_modules/react-native-image-zoom/android')

NOTE : If you have included other libraries in your project, the include line will contain the other dependencies too.

In android/app/build.gradle, add a dependency to ':react-native-image-zoom'

dependencies {
    compile project(':react-native-image-zoom')
}

Next, you need to change the MainActivity of your app to register ReactNativeDialogsPackage :

import com.image.zoom.ReactImageZoom; // add this import

public class MainActivity extends ReactActivity {
    //...

    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
          new MainReactPackage(),
          new ReactImageZoom() // add this manager
      );
    }