1. Import the namespaces:

using AppodealStack.Monetization.Api;
using AppodealStack.Monetization.Common;

Appodeal.Initialize("YOUR_APPODEAL_APP_KEY", AppodealAdType.Mrec, this);

• appKey - appKey is generated when you add an application to Appodeal.

• adType - Ad types can be combined using "|" operator. For example, AppodealAdType.Interstitial | AppodealAdType.Banner.

By default, auto caching is enabled: Appodeal SDK starts to load MREC right away after the initialization method is called. The next MREC ad starts to load after the previous one was shown.

Appodeal.ShowMrecView((int) yPosition, (int) xPosition, (string) placement);

• AppodealViewPosition.HorizontalSmart — to use the full-screen width;
• AppodealViewPosition.HorizontalCenter  — to center MREC horizontally;
• AppodealViewPosition.HotizontalRight — to align MREC to the right;
• AppodealViewPosition.HorizontalLeft — to align MREC to the left;

For yPosition you can use custom int value or constants:

• AppodealViewPosition.VerticalTop — to align MREC to the top of the screen;
• AppodealViewPosition.VerticalBottom — to align MREC to the bottom of the screen.

The X coordinate (horizontal position) of the MREC relative to the top left corner of the screen.

The Y coordinate (vertical position) of the MREC relative to the top left corner of the screen.

To set your custom width and height, you can use the constants of The Unity’s  Screen.width  and  Screen.height  with a constant value.

Appodeal.ShowMrecView((int) yPosition, (int) xPosition, (string) placement);

If the loaded ad can’t be shown for a specific placement, nothing will be shown. 

You can configure your impression logic for each placement.

If you have no placements, or call  Appodeal.Show  with placement that do not exist, the impression will be tagged with 'default' placement and its settings will be applied.

If auto caching is enabled, sdk will start to cache another ad, which can affect display rate. To save the loaded ad for future use (for instance, for another placement) check if the ad can be shown before calling show method:

if(Appodeal.CanShow(AppodealAdType.Mrec, “placementName”)){
    Appodeal.ShowMrecView((int) yPosition, (int) xPosition, (string) placement);
}

1. Subscribe to the desired Mrec event using one of the options from this guide. (you can subscribe to any event you want)
2. You can use callbacks as shown below after:
   
   

public void YourMethod()
{
	AppodealCallbacks.Mrec.OnLoaded += (sender, args) => OnMrecLoaded(args.IsPrecache);	
	AppodealCallbacks.Mrec.OnFailedToLoad += (sender, args) => OnMrecFailedToLoad();
	AppodealCallbacks.Mrec.OnShown += (sender, args) => OnMrecShown();
	AppodealCallbacks.Mrec.OnShowFailed += (sender, args) => OnMrecShowFailed();
	AppodealCallbacks.Mrec.OnClicked += (sender, args) => OnMrecClicked();
	AppodealCallbacks.Mrec.OnExpired += (sender, args) => OnMrecExpired();
}

#region MrecAd Callbacks
// Called when mrec is loaded precache flag shows if the loaded ad is precache)
private void OnMrecLoaded(bool isPrecache)
{
	Debug.Log("Mrec loaded");  
}
// Called when mrec failed to load
private void OnMrecFailedToLoad()
{
	Debug.Log("Mrec failed to load");   
}
// Called when mrec is failed to show
private void OnMrecShowFailed()
{
	Debug.Log("Mrec show failed");
}
// Called when mrec is shown
private void OnMrecShown()
{
	Debug.Log("Mrec shown");   
}
// Called when mrec is clicked
private void OnMrecClicked()
{
	Debug.Log("Mrec clicked");
}
// Called when mrec is expired and can not be shown
private void OnMrecExpired()
{
	Debug.Log("Mrec expired");
}
#endregion