> For the complete documentation index, see [llms.txt](https://docs.blocto.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.blocto.app/~/changes/lJG0Ie43hDo96Dq7BMVa/blocto-sdk/android-sdk/flow/getting-started.md).

# Getting Started

Initialize FCL and add Blocto as a wallet provider

In this guide we will show you prerequisite for Blocto Flow SDK.

A sample app is available at: <https://github.com/blocto/fcl-android/tree/main/fcl-sample>

### Installation

Add the dependency below to your module's `build.gradle` file

```groovy
dependencies {
    implementation "com.portto.fcl:$fclVersion"
}
```

### Initialization

Add FCL content provider to `AndroidManifest.xml`.

```xml
<application>
<provider
            android:authorities="com.portto.fcl.context"
            android:name="com.portto.fcl.lifecycle.FCLContentProvider"
            android:exported="false"/>
</application>
```

To initialize FCL, call `Fcl.init()`.

```kotlin
Fcl.init(
    env = Network.TESTNET,
    appDetail = AppDetail("My first dApp"),
    supportedWallets = walletProviderList
)
```

{% hint style="info" %}
FCL requires some essential information for initialization:

* env: The network on which the app was built. i.e. `Network.TESTNET` or `Network.MAINNET`
* appDetail (optional): The information of the app.
* supportedWallets: A list of **wallet providers** supported by the app.
  {% endhint %}

### Wallet Provider

A wallet provider is the instance of a Flow wallet. The following is an example of adding `Blocto` as a wallet provider.

```kotlin
val walletProviderList = listOf(Blocto.getInstance(YOUR_BLOCTO_APP_ID))

Fcl.init(
    env = Network.TESTNET,
    appDetail = AppDetail(),
    supportedWallets = walletProviderList
)
```

{% hint style="info" %}
To obtain a **Blocto App ID**, please refer to the [instructions](/~/changes/lJG0Ie43hDo96Dq7BMVa/blocto-sdk/register-app-id.md).

If you initialize FCL with `Network.TESTNET`, FCL utilizes Blocto **testing** App ID; Likewise, if you initialize FCL with `Network.MAINNET`, FCL utilizes Blocto **production** App ID.
{% endhint %}