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# XCTHitchMetric

A metric to measure the number of hitches your UI encounters in a performance test.

```
class XCTHitchMetric
```

## Discussion

A hitch occurs when your app doesn’t prepare the content it displays in time for the system to render it in the next screen update.
For more information, see <doc://com.apple.documentation/documentation/Xcode/understanding-hitches-in-your-app>.

## Topics

### Creating a hitch metric

[`init(application:)`](/documentation/XCTest/XCTHitchMetric/init(application:))

Initializes a metric that measures hitches metric in the specified app.


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