Used:

1. productFlavors - for Android
2. additional scheme - iOS
3. react-native-config - for setting up config via ENV

Links:

• iOS - setting up additional scheme
• Android - setting up productFlavors
• react-native-config

WARNING!

• Please - use only "dev" scheme/productFlavor for development! "stage"/"production" are going to be used while QA/Production
• On iOS platform only "dev" scheme is debuggable, "stage"/"production" are signed via release configs

How to use:

Android:

WARNING!

• No pure react-native run-android usage. For development - please use commands below;
• No pure cd android && ./gradlew assembleRelease usage. For development - please use commands below;

Running on simulator/real device in debug mode:

1. react-native run-android --variant=devDebug - dev version (uses config from .env.dev);
2. react-native run-android --variant=stageDebug - stage version (uses config from .env.stage);
3. react-native run-android --variant=productionDebug - production version (uses config from .env.production);

NOTE: After build was successfully assembled - it can show next error:

Starting: Intent { cmp=com.app/.MainActivity } Error type 3 Error: Activity class {com.app/com.app.MainActivity} does not exist.

That is ok. Just press on application icon on your simulator/device and everything will work;

Assembling build (release mode):

1. cd android && ./gradlew assembleDev - dev version (uses config from .env.dev);
2. cd android && ./gradlew assembleStage - stage version (uses config from .env.stage);
3. cd android && ./gradlew assembleProduction - production version (uses config from .env.production);

iOS:

WARNING!

• No pure react-native run-ios usage. For development - please use Xcode;

Running on simulator/real device:

1. Choose scheme here:
2. Run on simulator/device;

Assembling build (release mode):

1. Choose scheme here:
2. Run "Product/Archive";

What has changed:

Android:

• react-native-config - basic link changes (MainApplication.java, settings.gradle, android/app/build.gradle);
• android/app/build.gradle - all changes are marked;
• proguard-rules.pro - all changes are marked;
• added app/src/dev/res/values/strings.xml for "dev" productFlavor - for bundle name DEV-app;
• added app/src/stage/res/values/strings.xml for "stage" productFlavor - for bundle name STAGING-app;
• added app/src/production/res/values/strings.xml for "production" productFlavor - for bundle name app;

iOS:

• react-native-config - basic link changes (Libraries, Build Setting, Linked Frameworks and Libraries, Build Phases);

• Added new configuration (Staging)

• Added new User-Defined Settings (APP_BUNDLE_ID_SUFFIX, APP_ENVIRONMENT, APP_PRODUCT_NAME)

• Updated Product Bundle Identifier for each configuration (Debug, Staging, Release)

• Added Library Search Paths fix for new configuration (Staging)

• Added Per-configuration build products path fix for new configuration (for "App Target" on tab "Build Settings") (Staging)

• Updated Product Name (Added Prefix)

• Duplicated "production" scheme - called "stage" scheme

• Edited ALL schemes ("dev", "stage", "production"); For each scheme - setting up Pre-actions

• Set up Pre-action script for ALL schemes (Build, Run, Archive):

1. "dev" - ".env.dev"
2. "stage" - ".env.stage"
3. "production" - ".env.production"

• Set up Build Configuration script for ALL schemes (Run, Archive):

1. "dev" - "Debug"
2. "stage" - "Staging"
3. "production" - "Release"