# CacheDataSource.EventListener

Artifact: [androidx.media3:media3-datasource](https://developer.android.com/jetpack/androidx/releases/media3) [View Source](https://cs.android.com/search?q=file:androidx/media3/datasource/cache/CacheDataSource.java+class:androidx.media3.datasource.cache.CacheDataSource.EventListener)

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```
public interface CacheDataSource.EventListener
```

<br />

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Listener of `https://developer.android.com/reference/androidx/media3/datasource/cache/CacheDataSource` events.

## Summary

| ### Public methods |
|---|---|
| `abstract void` | `https://developer.android.com/reference/androidx/media3/datasource/cache/CacheDataSource.EventListener#onCacheIgnored(int)(@https://developer.android.com/reference/androidx/media3/datasource/cache/CacheDataSource.CacheIgnoredReason int reason)` Called when the current request ignores cache. |
| `abstract void` | `https://developer.android.com/reference/androidx/media3/datasource/cache/CacheDataSource.EventListener#onCachedBytesRead(long,long)(long cacheSizeBytes, long cachedBytesRead)` Called when bytes have been read from the cache. |

## Public methods

### onCacheIgnored

```
abstract void onCacheIgnored(@CacheDataSource.CacheIgnoredReason int reason)
```

Called when the current request ignores cache.

| Parameters |
|---|---|
| `@https://developer.android.com/reference/androidx/media3/datasource/cache/CacheDataSource.CacheIgnoredReason int reason` | Reason cache is bypassed. |

### onCachedBytesRead

```
abstract void onCachedBytesRead(long cacheSizeBytes, long cachedBytesRead)
```

Called when bytes have been read from the cache.

| Parameters |
|---|---|
| `long cacheSizeBytes` | Current cache size in bytes. |
| `long cachedBytesRead` | Total bytes read from the cache since this method was last called. |