> For the complete documentation index, see [llms.txt](https://one-admax-organization.gitbook.io/one-admax-sdk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://one-admax-organization.gitbook.io/one-admax-sdk/05.-flutter-plugin-guide/interstitial.md).

# 5-2. 전면 광고 for Flutter

## 사전 작업

{% content-ref url="/pages/HIpQCyVR8FOQSoTDab0B" %}
[05. Flutter-Plugin Guide](/one-admax-sdk/05.-flutter-plugin-guide.md)
{% endcontent-ref %}

## 전면 광고 인스턴스 생성

```java
 ...
 OAMInterstitial _oamInterstitial = OAMInterstitial()
 ...
```

## 전면 광고 요청

전면 광고의 `load()`를 요청합니다.

매개변수로는 `placementId`와 `InterstitialCallBackListener`을 받습니다.

[전면광고의 `placementId`는 ONE AdMax 콘솔에서 생성이 가능합니다.](/one-admax-sdk/02..md)

```dart
oamInterstitial.load(
 placementId: interstitialPlacementId,
);
```

{% hint style="warning" %}
과도한 광고 요청은 차단 사유가 되니 주의해주세요!
{% endhint %}

## 전면 광고 이벤트 리스너 설정

전면 광고를 불러올 때 발생하는 이벤트에 대한 리스너를 설정합니다. 제공되는 리스너와 구현 예시는 다음과 같습니다.

```java
_oamInterstitial.load(
  callback: InterstitialCallBackListener(
    onLoaded: onLoaded,
    onLoadFailed: onLoadFailed,
    onOpened: onOpened,
    onOpenFailed: onOpenFailed,
    onClosed: onClosed,
    onClicked: onClicked,
  ),
);
```

{% content-ref url="/pages/i8O1iX5eJtrY4LjZBdFC" %}
[ONE AdMax SDK Error Codes](/one-admax-sdk/oamerror.md)
{% endcontent-ref %}

## 전면 광고 노출

전면 광고를 보여줍니다.

```java
_oamInterstitial.show();
```

## 전면 광고 커스텀 옵션

| 변수                    | 설명                                                      |
| --------------------- | ------------------------------------------------------- |
| backgroundColor       | 배경색 및 투명도 변경. Color 값                                   |
| isHideCloseButton     | 우측 상단 닫기 버튼 노출 여부 설정. default : false                   |
| closeBtnMargin.left   | 닫기 버튼 좌측 마진. default : -28dp                            |
| closeBtnMargin.top    | 닫기 버튼 상단 마진. default : 20dp                             |
| closeBtnMargin.right  | 닫기 버튼 우측 마진. default : 20dp                             |
| closeBtnMargin.bottom | 닫기 버튼 하단 마진. default : 0dp                              |
| isDisableBackButton   | 백키 종료 사용 안 함. deault : false                            |
| EndingText.isShow     | 종료 메시지 노출 여부. default : false                           |
| EndingText.text       | <p>종료 메시지. <br>default : "뒤로 가기를 한 번 더 누르시면 종료됩니다."</p> |
| EndingText.size       | 종료 메시지 size. default : 11sp                             |
| EndingText.color      | 종료 메시지 test color. default : white                      |
| EndingText.align      | 종료 메시지 gravity. default : RIGHT                         |

## 전면 광고 샘플 코드

```java
OAMInterstitial _oamInterstitial = OAMInterstitial()

_oamInterstitial.load(
  placementId: interstitialPlacementId,
  callback: InterstitialCallBackListener(
    onLoaded: onLoaded,
    onLoadFailed: onLoadFailed,
    onOpened: onOpened,
    onOpenFailed: onOpenFailed,
    onClosed: onClosed,
    onClicked: onClicked,
  ),
);

_oamInterstitial.interstitialConfig.isHideCloseButton = false;
_oamInterstitial.interstitialConfig.backgroundColor = Colors.red;
_oamInterstitial.interstitialConfig.endingText = const EndingText(
  'Sample Text',
  12,
  Colors.white,
  TextAlign.center,
  true,
);

_oamInterstitial.interstitialConfig.closeBtnMargin = const CloseBtnMargin(
  top: 10,
  left: 10,
  right: 10,
  bottom: 10,
);

_oamInterstitial.show();
```


---

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