chore: add support to obj-c and java formatting

.github/workflows/ci.yml

@@ -25,9 +25,10 @@ on:
 jobs:
   lint:
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup
         uses: ./.github/actions/setup
@@ -38,11 +39,57 @@ jobs:
       - name: Typecheck files
         run: yarn test:types
 
+  check-objc-formatting:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install clang-format
+        run: sudo apt-get install clang-format
+
+      - name: Check Objective-C formatting
+        run: ./scripts/format-objc.sh --check
+
+  check-java-formatting:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install JDK
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'zulu'
+          java-version: '17'
+          java-package: 'jdk'
+
+      - name: Download google-java-format
+        run: |
+          GOOGLE_JAVA_FORMAT_VERSION=1.23.0 
+          GOOGLE_JAVA_FORMAT_URL=https://github.com/google/google-java-format/releases/download/v${GOOGLE_JAVA_FORMAT_VERSION}/google-java-format-${GOOGLE_JAVA_FORMAT_VERSION}-all-deps.jar
+          mkdir -p $HOME/google-java-format
+          curl -L -o $HOME/google-java-format/google-java-format.jar $GOOGLE_JAVA_FORMAT_URL
+
+      - name: Create google-java-format wrapper script
+        run: |
+          cat << 'EOF' > /usr/local/bin/google-java-format
+          #!/bin/sh
+          exec java -jar "$HOME/google-java-format/google-java-format.jar" "$@"
+          EOF
+          chmod +x /usr/local/bin/google-java-format
+
+      - name: Check Java formatting
+        run: ./scripts/format-java.sh --check
+
   test:
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup
         uses: ./.github/actions/setup
@@ -52,9 +99,10 @@ jobs:
 
   build-library:
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup
         uses: ./.github/actions/setup
@@ -64,11 +112,12 @@ jobs:
 
   build-android:
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     env:
       TURBO_CACHE_DIR: .turbo/android
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup
         uses: ./.github/actions/setup
@@ -122,11 +171,12 @@ jobs:
 
   build-ios:
     runs-on: macos-14
+    timeout-minutes: 30
     env:
       TURBO_CACHE_DIR: .turbo/ios
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup
         uses: ./.github/actions/setup

CONTRIBUTING.md

@@ -29,6 +29,8 @@ This project follows
 - [git](https://git-scm.com) (used for source version control).
 - An IDE such as [Android Studio](https://developer.android.com/studio) or [Visual Studio Code](https://code.visualstudio.com/).
 - [addlicense](https://github.com/google/addlicense)
+- [google-java-format Version 1.23.0](https://github.com/google/google-java-format) (used to format Java code).
+- [clang-format](https://clang.llvm.org/docs/ClangFormat.html) (used to format Objective-C code).
 
 ## 2. Forking & cloning the repository
 
@@ -44,22 +46,6 @@ This project follows
   fetch from the master repository, not your clone, when running `git fetch`
   et al.)
 
-## 3. Test your changes
-
-- Make sure to test your changes before sending them for review. To do so, update and run the [Sample app](./example/) at `./example`.
-
-### Code reviews
-
-All submissions, including submissions by project members, require review. We
-use GitHub pull requests for this purpose. Consult
-[GitHub Help](https://help.github.com/articles/about-pull-requests/) for more
-information on using pull requests.
-
-Please peruse the
-[Typescript style guide](https://google.github.io/styleguide/tsguide.html), [Java style guide](https://google.github.io/styleguide/javaguide.html), and [Objective-C style guide](https://google.github.io/styleguide/objcguide.html) before
-working on anything non-trivial. These guidelines are intended to
-keep the code consistent and avoid common pitfalls.
-
 #### Create branch
 
 1. `git fetch upstream`
@@ -84,3 +70,42 @@ keep the code consistent and avoid common pitfalls.
 1. `git pull-request` (if you are using [Hub](http://github.com/github/hub/)) or
   go to `https://github.com/googlemaps/react-native-navigation-sdk` and click the
   "Compare & pull request" button
+
+## 3. Test your changes
+
+Make sure to test your changes before sending them for review. To do so, update and run the [Sample app](./example/) at `./example`.
+
+## 4. Code Formatting
+
+### Objective-C and Java Code Formatting
+
+This project enforces code formatting for Objective-C and Java files to follow Google's style guidelines. The formatting is automatically checked before commits and during continuous integration (CI) using Lefthook and GitHub Actions.
+
+#### Running Formatters Locally
+
+Before committing your changes, you should run the formatters manually to ensure your code adheres to the required style:
+
+**Objective-C:**
+```bash
+./scripts/format-objc.sh
+```
+This script will format all Objective-C files under the /ios and /example/ios directories according to Google's Objective-C style guide.
+
+**Java:**
+```bash
+./scripts/format-java.sh
+```
+This script will format all Java files under the /android and /example/android directories according to Google's Java style guide.
+
+
+## 5. Code reviews
+
+All submissions, including submissions by project members, require review. We
+use GitHub pull requests for this purpose. Consult
+[GitHub Help](https://help.github.com/articles/about-pull-requests/) for more
+information on using pull requests.
+
+Please peruse the
+[Typescript style guide](https://google.github.io/styleguide/tsguide.html), [Java style guide](https://google.github.io/styleguide/javaguide.html), and [Objective-C style guide](https://google.github.io/styleguide/objcguide.html) before
+working on anything non-trivial. These guidelines are intended to
+keep the code consistent and avoid common pitfalls.

android/src/main/java/com/google/android/react/navsdk/Command.java

@@ -33,7 +33,8 @@ public enum Command {
   SET_MY_LOCATION_BUTTON_ENABLED(15, "setMyLocationButtonEnabled"),
   SET_ROTATE_GESTURES_ENABLED(16, "setRotateGesturesEnabled"),
   SET_SCROLL_GESTURES_ENABLED(17, "setScrollGesturesEnabled"),
-  SET_SCROLL_GESTURES_ENABLED_DURING_ROTATE_OR_ZOOM(18, "setScrollGesturesEnabledDuringRotateOrZoom"),
+  SET_SCROLL_GESTURES_ENABLED_DURING_ROTATE_OR_ZOOM(
+      18, "setScrollGesturesEnabledDuringRotateOrZoom"),
   SET_TILT_GESTURES_ENABLED(19, "setTiltGesturesEnabled"),
   SET_ZOOM_GESTURES_ENABLED(20, "setZoomGestures"),
   SET_BUILDINGS_ENABLED(21, "setBuildingsEnabled"),

android/src/main/java/com/google/android/react/navsdk/EnumTranslationUtil.java

@@ -13,11 +13,11 @@
  */
 package com.google.android.react.navsdk;
 
+import com.google.android.gms.maps.GoogleMap;
+import com.google.android.gms.maps.GoogleMap.CameraPerspective;
 import com.google.android.libraries.navigation.AlternateRoutesStrategy;
-import com.google.android.libraries.navigation.Navigator;
 import com.google.android.libraries.navigation.ForceNightMode;
-import com.google.android.gms.maps.GoogleMap.CameraPerspective;
-import com.google.android.gms.maps.GoogleMap;
+import com.google.android.libraries.navigation.Navigator;
 
 public class EnumTranslationUtil {
   public static AlternateRoutesStrategy getAlternateRoutesStrategyFromJsValue(int jsValue) {

android/src/main/java/com/google/android/react/navsdk/INavigationCallback.java

@@ -13,17 +13,6 @@
  */
 package com.google.android.react.navsdk;
 
-import android.location.Location;
-import com.google.android.gms.maps.model.Circle;
-import com.google.android.gms.maps.model.GroundOverlay;
-import com.google.android.gms.maps.model.LatLng;
-import com.google.android.gms.maps.model.Marker;
-import com.google.android.gms.maps.model.Polygon;
-import com.google.android.gms.maps.model.Polyline;
-import com.google.android.libraries.mapsplatform.turnbyturn.model.NavInfo;
-import com.google.android.libraries.navigation.ArrivalEvent;
-import com.google.android.libraries.navigation.Navigator;
-
 public interface INavigationCallback {
   void logDebugInfo(String info);
 }

android/src/main/java/com/google/android/react/navsdk/NavForwardingManager.java

@@ -14,7 +14,6 @@
 package com.google.android.react.navsdk;
 
 import android.content.Context;
-
 import com.google.android.libraries.navigation.Navigator;
 
 /** Starts and stops the forwarding of turn-by-turn nav info from Nav SDK. */

android/src/main/java/com/google/android/react/navsdk/NavInfoReceivingService.java

@@ -22,11 +22,9 @@
 import android.os.Message;
 import android.os.Messenger;
 import android.os.Process;
-
 import androidx.annotation.Nullable;
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
-
 import com.google.android.libraries.mapsplatform.turnbyturn.TurnByTurnManager;
 import com.google.android.libraries.mapsplatform.turnbyturn.model.NavInfo;