<img src="https://img.shields.io/badge/%20-ENTERPRISE-B10031" style="float:left"/><br /> <img src="https://img.shields.io/badge/iOS-V4-009727?logo=apple" style="float:left"/><br />
You can listen for ad events by assigning a delegate to the JWP `adDelegate` property. These events are surfaced using the following method.
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The `player` is the instance of `JWPlayer` which has emitted the event. The event is an instance of `JWAdEvent` which supplies the following information:
Client: This is the ad client being used to present the ad. This is represented as a `
JWAdClient` enumeration value.Type: This is the type of event. This is represented as a `
JWAdEventType` enumeration value.
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The <a href="https://docs.jwplayer.com/players/docs/ios-event-properties-reference#jwaddelegate" target="_blank">properties</a> for the ad event can be queried using a subscript operator. The key for the subscript is a `JWEventKey` enumeration type. The subscript returns an optional type `Any?` that must be typecast into a type when retrieved.
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If a property is not available, `nil` is returned.

For a list of types returned for each property, refer to the header documentation for `
JWAdEventKey` or the [Event Properties Reference](🔗).
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## Requirement
JWPlayerKit 4.0.0+
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## Listen for ad events
When listening for ad events, you can use the `JWPlayerViewController` or `JWPlayerView`.
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### JWPlayerViewController
When using the `JWPlayerViewController`, use the following steps to listen for ad events within your content:
Create a subclass of `
JWPlayerViewController`.Override the ad event method to listen for and handle ad events from the SDK.
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### JWPlayerView
When using `JWPlayerView` and creating your own interface, use the following steps to listen for ad events within your content:
Instantiate an instance of `
JWPlayerView`.Assign a delegate object, which conforms to `
JWAdDelegate`.Listen for ad events in your ad delegate.
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</details>
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