add

android/app/build.gradle

@@ -4,6 +4,12 @@ apply plugin: "com.facebook.react"
 
 def projectRoot = rootDir.getAbsoluteFile().getParentFile().getAbsolutePath()
 
+plugins {
+  id("com.android.application")
+  id("com.google.gms.google-services")
+}
+
+
 /**
  * This is the configuration block to customize your React Native Android app.
  * By default you don't need to apply any configuration, just uncomment the lines you need.
@@ -149,6 +155,8 @@ android {
 dependencies {
     // The version of react-native is set by the React Native Gradle Plugin
     implementation("com.facebook.react:react-android")
+    implementation(platform("com.google.firebase:firebase-bom:33.12.0"))
+    implementation("com.google.firebase:firebase-analytics")
 
     def isGifEnabled = (findProperty('expo.gif.enabled') ?: "") == "true";
     def isWebpEnabled = (findProperty('expo.webp.enabled') ?: "") == "true";

android/build.gradle

@@ -1,5 +1,9 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
+plugins {
+  id("com.google.gms.google-services") version "4.4.2" apply false
+}
+
 buildscript {
     ext {
         buildToolsVersion = findProperty('android.buildToolsVersion') ?: '35.0.0'