> For the complete documentation index, see [llms.txt](https://docs.nubrick.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nubrick.app/reference/android/remoteconfigvariant.md).

# RemoteConfigVariant

### 定義 <a href="#definition" id="definition"></a>

```kotlin
class RemoteConfigVariant {
    val experimentId: String
    val id: String

    fun get(key: String): String?
    fun getAsString(key: String): String?
    fun getAsBoolean(key: String): Boolean?
    fun getAsInt(key: String): Int?
    fun getAsFloat(key: String): Float?
    fun getAsDouble(key: String): Double?

    @Composable
    fun GetAsEmbedding(
        key: String,
        arguments: Any? = null,
        onEvent: ((event: Event) -> Unit)? = null,
        content: (@Composable (state: EmbeddingLoadingState) -> Unit)? = null
    )
}

class RemoteConfig {
    suspend fun fetch(): Result<RemoteConfigVariant>
}

fun interface RemoteConfigListener {
    fun onResult(result: RemoteConfigResult)
}

class RemoteConfigResult {
    val value: RemoteConfigVariant?
    val error: Throwable?
    val isSuccess: Boolean
}
```

### 基本取得 <a href="#get" id="get"></a>

#### Kotlin / Compose

```kotlin
NubrickSDK.RemoteConfig("FEATURE_FLAGS") { state ->
    when (state) {
        is RemoteConfigLoadingState.Completed -> {
            val variant = state.variant
            val experimentId = variant.experimentId
            val variantId = variant.id

            val title = variant.getAsString("title")
            val enabled = variant.getAsBoolean("is_enabled")
            val maxCount = variant.getAsInt("max_count")
        }
        else -> Unit
    }
}
```

#### Java

`fetchRemoteConfig(...)` は Remote Config を非同期で取得し、取得結果をメインスレッド上で `RemoteConfigListener` に通知します。

```java
import app.nubrick.nubrick.NubrickSDK;
import app.nubrick.nubrick.remoteconfig.RemoteConfigVariant;

NubrickSDK.fetchRemoteConfig("FEATURE_FLAGS", result -> {
    if (!result.isSuccess()) {
        Throwable error = result.getError();
        System.err.println(error);
        return;
    }

    RemoteConfigVariant variant = result.getValue();
    if (variant == null) {
        return;
    }

    String experimentId = variant.getExperimentId();
    String variantId = variant.getId();
    String title = variant.getAsString("title");
    Boolean enabled = variant.getAsBoolean("is_enabled");
    Integer maxCount = variant.getAsInt("max_count");
});
```

取得に成功した場合は `isSuccess()` が `true` になり、`getValue()` から `RemoteConfigVariant` を取得できます。失敗した場合は `getError()` から原因を取得できます。

### Embedding として取得（Compose） <a href="#embedding" id="embedding"></a>

```kotlin
NubrickSDK.RemoteConfig("FEATURE_FLAGS") { state ->
    when (state) {
        is RemoteConfigLoadingState.Completed -> {
            state.variant.GetAsEmbedding(
                key = "hero_component",
                arguments = mapOf("item_id" to itemId)
            )
        }
        else -> Unit
    }
}
```

`GetAsEmbedding(...)` は Jetpack Compose 専用の API です。Java/XML の画面で利用する場合は、アプリモジュールで Kotlin/Jetpack Compose を有効にし、この埋め込み部分だけを Compose で実装して、`ComposeView` を介して既存の XML レイアウトに組み込んでください。

### suspend API で取得（Kotlin） <a href="#suspend" id="suspend"></a>

```kotlin
lifecycleScope.launch {
    val remoteConfig = NubrickSDK.remoteConfig("FEATURE_FLAGS").getOrNull() ?: return@launch
    val variant = remoteConfig.fetch().getOrNull() ?: return@launch
    val message = variant.getAsString("message")
}
```


---

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