Image Optimizer

An efficient image resizing and optimization application built with Expo and React Native.

Setup

1. Install Dependencies

   npm install
   # or
   yarn install

2. Environment Variables Create a .env file in the root directory (copy from .env.example if available, or use the provided keys):

   EXPO_PUBLIC_APP_NAME="Image Optimizer"
   EXPO_PUBLIC_ADMOB_APP_ID="YOUR_ADMOB_APP_ID"
   EXPO_PUBLIC_BANNER_AD_ID="YOUR_ADMOB_BANNER_AD_ID"
   EXPO_PUBLIC_INTERSTITIAL_AD_ID="YOUR_ADMOB_INTERSTITIAL_AD_ID"
   

AdMob Configuration

To enable ads, you need to configure your AdMob IDs in two places: app.json and .env.

1. app.json

Locate the react-native-google-mobile-ads plugin configuration in app.json and replace YOUR_ADMOB_APP_ID_HERE with your actual AdMob App ID.

[
  "react-native-google-mobile-ads",
  {
    "androidAppId": "ca-app-pub-xxxxxxxxxxxxxxxx~yyyyyyyyyy",
    "iosAppId": "ca-app-pub-xxxxxxxxxxxxxxxx~yyyyyyyyyy"
  }
]

2. .env

Update the .env file with your specific Ad Unit IDs for banners and interstitials.

Important: For development, use the official Google Test IDs to avoid policy violations.

Ad Type	Test ID (Android)	Test ID (iOS)
App ID	ca-app-pub-3940256099942544~3347511713	ca-app-pub-3940256099942544~1458002511
Banner	ca-app-pub-3940256099942544/6300978111	ca-app-pub-3940256099942544/2934735716
Interstitial	ca-app-pub-3940256099942544/1033173712	ca-app-pub-3940256099942544/4411468910

Start with these Test IDs for development checking, and switch to your real IDs for production builds.

Building the App

This project uses EAS (Expo Application Services) for building.

Prerequisites

• Install EAS CLI: npm install -g eas-cli
• Login to Expo: eas login

Build Commands

We have configured two build profiles in eas.json:

Development Build

Use this for testing on a simulator or device during development. It includes the development client.

eas build --profile development --platform android
# or
eas build --profile development --platform ios

Production Build

Use this for generating a release build for the app store.

eas build --profile production --platform android
# or
eas build --profile production --platform ios