SharedPreferences React Native Android bridge - Tutorial file for React Native Widget

SharedStorage.java

//PUT YOUR PACKAGE NAME HERE, IT'S THE SAME AS IN MainApplication.java
package com.reactnativecreatewidgettutorial;

import com.facebook.react.bridge.NativeModule;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.ReactContext;
import com.facebook.react.bridge.ReactContextBaseJavaModule;
import com.facebook.react.bridge.ReactMethod;

import android.app.Activity;
import android.appwidget.AppWidgetManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.util.Log;

public class SharedStorage extends ReactContextBaseJavaModule {
	ReactApplicationContext context;

	public SharedStorage(ReactApplicationContext reactContext) {
		super(reactContext);
		context = reactContext;
	}

	@Override
	public String getName() {
		return "SharedStorage";
	}

	@ReactMethod
	public void set(String message) {
		SharedPreferences.Editor editor = context.getSharedPreferences("DATA", Context.MODE_PRIVATE).edit();
		editor.putString("appData", message);
		editor.commit();

		//CHANGE TO THE NAME OF YOUR WIDGET
		Intent intent = new Intent(getCurrentActivity().getApplicationContext(), Widget.class);
		intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
		//CHANGE TO THE NAME OF YOUR WIDGET
		int[] ids = AppWidgetManager.getInstance(getCurrentActivity().getApplicationContext()).getAppWidgetIds(new ComponentName(getCurrentActivity().getApplicationContext(), Widget.class));
		intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, ids);
		getCurrentActivity().getApplicationContext().sendBroadcast(intent);

	}
}