上传多张图片到firebase存储，并将下载地址保存到android studio kotlin的实时数据库

implementation 'com.google.firebase:firebase-storage-ktx:20.0.0'

val storage = Firebase.storage
val storageRef = storage.reference

val imagesRef = storageRef.child("images")

for (imageUri in imageUris) {
    val imageFileName = UUID.randomUUID().toString()
    val imageRef = imagesRef.child("$imageFileName.jpg")

    val uploadTask = imageRef.putFile(imageUri)

    uploadTask.addOnSuccessListener {
        // 图片上传成功
        val downloadUrlTask = imageRef.downloadUrl
        downloadUrlTask.addOnSuccessListener { downloadUri ->
            // 获取图片下载地址
            val downloadUrl = downloadUri.toString()

            // 将下载地址保存到实时数据库
            val database = Firebase.database
            val databaseRef = database.reference

            val imageId = UUID.randomUUID().toString()
            val imageInfo = HashMap<String, String>()
            imageInfo["downloadUrl"] = downloadUrl

            databaseRef.child("images").child(imageId).setValue(imageInfo)
        }
    }.addOnFailureListener {
        // 图片上传失败
    }
}