feat: Firebase setup - Added Android native method for requesting per…

…missions and fetching device tokens.

android/build.gradle

@@ -90,5 +90,7 @@ dependencies {
   //noinspection GradleDynamicVersion
   implementation "com.facebook.react:react-native:+"
   implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+  implementation(platform("com.google.firebase:firebase-bom:32.7.2"))
+  implementation "com.google.firebase:firebase-messaging"
 }
 

android/src/main/AndroidManifest.xml

@@ -1,3 +1,14 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-          package="com.candlefinance.push">
-</manifest>
+    package="com.candlefinance.push">
+    <application>
+        <service
+            android:name=".PushFirebaseNotificationService">
+            <intent-filter>
+                <action android:name="com.google.firebase.MESSAGING_EVENT" />
+            </intent-filter>
+        </service>
+        <meta-data
+            android:name="com.google.firebase.messaging.default_notification_channel_id"
+            android:value="@string/default_notification_channel_id" />
+    </application>
+</manifest>

android/src/main/java/com/candlefinance/push/PushModule.kt

@@ -1,9 +1,19 @@
 package com.candlefinance.push
 
+import android.Manifest
+import android.content.pm.PackageManager
+import android.os.Build
+import android.util.Log
+import androidx.core.content.ContextCompat
+import com.facebook.react.bridge.Promise
 import com.facebook.react.bridge.ReactApplicationContext
 import com.facebook.react.bridge.ReactContextBaseJavaModule
 import com.facebook.react.bridge.ReactMethod
-import com.facebook.react.bridge.Promise
+import com.facebook.react.modules.core.PermissionAwareActivity
+import com.facebook.react.modules.core.PermissionListener
+import com.google.android.gms.tasks.OnCompleteListener
+import com.google.firebase.messaging.FirebaseMessaging
+
 
 class PushModule(reactContext: ReactApplicationContext) :
   ReactContextBaseJavaModule(reactContext) {
@@ -19,6 +29,61 @@ class PushModule(reactContext: ReactApplicationContext) :
     promise.resolve(a * b)
   }
 
+
+
+  @ReactMethod
+  fun requestPermissions(promise: Promise) {
+   val context = reactApplicationContext.baseContext
+
+   if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+
+        if (ContextCompat.checkSelfPermission(context, Manifest.permission.POST_NOTIFICATIONS) ==
+          PackageManager.PERMISSION_GRANTED
+        ) {
+          promise
+            .resolve(true)
+        } else {
+          val activity = reactApplicationContext.currentActivity
+
+          if (activity is PermissionAwareActivity) {
+            val currentRequestCode = 83834
+
+            val listener = PermissionListener { requestCode: Int, _: Array<String>, grantResults: IntArray ->
+              if (requestCode == currentRequestCode) {
+                val permissionStatus = if (grantResults.isNotEmpty()) grantResults[0] else PackageManager.PERMISSION_DENIED
+                promise.resolve(permissionStatus== PackageManager.PERMISSION_GRANTED)
+                return@PermissionListener true
+              }
+              return@PermissionListener false
+            }
+
+            // Replace this with the appropriate permission for push notifications
+            activity.requestPermissions(arrayOf(Manifest.permission.POST_NOTIFICATIONS), currentRequestCode, listener)
+          } else {
+            promise.reject("NO_ACTIVITY", "No PermissionAwareActivity was found! Make sure the app has launched before calling this function.")
+          }
+        }
+
+    } else {
+       promise.resolve(true)
+      }
+  }
+
+  @ReactMethod
+  fun getToken(promise: Promise) {
+    FirebaseMessaging.getInstance().token.addOnCompleteListener(OnCompleteListener { task ->
+      if (!task.isSuccessful) {
+        Log.w("getTokenError", "Fetching FCM registration token failed", task.exception)
+        promise.reject(task.exception)
+        return@OnCompleteListener
+      }
+
+      // Get new FCM registration token
+      val token = task.result
+      promise.resolve(token)
+    })
+  }
+
   companion object {
     const val NAME = "Push"
   }

example/android/app/build.gradle

@@ -1,6 +1,7 @@
 apply plugin: "com.android.application"
 apply plugin: "org.jetbrains.kotlin.android"
 apply plugin: "com.facebook.react"
+apply plugin: "com.google.gms.google-services"
 
 /**
  * This is the configuration block to customize your React Native Android app.

example/android/app/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
 
     <application
       android:name=".MainApplication"

example/android/app/src/main/res/values/strings.xml

@@ -1,3 +1,4 @@
 <resources>
     <string name="app_name">PushExample</string>
+    <string name="default_notification_channel_id">PushRemoteNotification</string>
 </resources>

example/android/build.gradle

@@ -15,6 +15,7 @@ buildscript {
         classpath("com.android.tools.build:gradle")
         classpath("com.facebook.react:react-native-gradle-plugin")
         classpath("org.jetbrains.kotlin:kotlin-gradle-plugin")
+        classpath("com.google.gms:google-services:4.4.1")
     }
 }
 

example/src/App.tsx

@@ -70,6 +70,19 @@ export default function App() {
         title="Register for Token"
         onPress={() => push.registerForToken()}
       />
+      <Button
+        title="Get FCM Token"
+        onPress={() =>
+          push
+            .getToken()
+            .then((token) => {
+              console.log('Token :', token);
+            })
+            .catch((e) => {
+              console.log('Error while fetching deivce FCM token', e);
+            })
+        }
+      />
     </View>
   );
 }

src/index.tsx

@@ -48,19 +48,19 @@ class Push {
   private bridge?: NativeEventEmitter;
 
   public constructor() {
+    const module = NativeModules.Push;
+    this.module = module;
     if (Platform.OS === 'ios') {
-      const module = NativeModules.Push;
-      this.module = module;
       this.bridge = new NativeEventEmitter(module);
     }
   }
 
   public async requestPermissions(): Promise<boolean> {
-    if (Platform.OS === 'ios') {
-      const result = await this.module.requestPermissions();
-      return result;
-    }
-    return false;
+    // if (Platform.OS === 'ios') {
+    const result = await this.module.requestPermissions();
+    return result;
+    // }
+    // return false;
   }
 
   public async registerForToken(): Promise<boolean> {
@@ -70,6 +70,13 @@ class Push {
     return false;
   }
 
+  public async getToken(): Promise<boolean> {
+    if (Platform.OS === 'android') {
+      return this.module.getToken();
+    }
+    return false;
+  }
+
   public async isRegisteredForRemoteNotifications(): Promise<boolean> {
     if (Platform.OS === 'ios') {
       return this.module.isRegisteredForRemoteNotifications();