使用Android Studio从firestore获取数组值

dependencies {
    // 其他依赖...
    implementation 'com.google.firebase:firebase-firestore:23.0.3'
}

<uses-permission android:name="android.permission.INTERNET" />

FirebaseFirestore db = FirebaseFirestore.getInstance();

db.collection("users").document("user1")
    .get()
    .addOnSuccessListener(new OnSuccessListener<DocumentSnapshot>() {
        @Override
        public void onSuccess(DocumentSnapshot documentSnapshot) {
            if (documentSnapshot.exists()) {
                List<String> favorites = (List<String>) documentSnapshot.get("favorites");
                // 处理获取到的数组值
            }
        }
    })
    .addOnFailureListener(new OnFailureListener() {
        @Override
        public void onFailure(@NonNull Exception e) {
            // 处理获取失败的情况
        }
    });