---
title: "Replacing the progress indicator UI for iOS"
slug: "dpo-replace-ios-app-sdk-ui-for-the-progress-indicator"
updated: 2026-10-27T20:13:12Z
published: 2026-10-27T20:13:12Z
canonical: "docs.onespan.com/dpo-replace-ios-app-sdk-ui-for-the-progress-indicator"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.onespan.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Replacing the progress indicator UI for iOS

The App SDK provides a default Progress Indicator.

![](https://cdn.document360.io/038f59a7-abd0-4c14-9de7-3434d28b49fd/Images/Documentation/image2.jpg?sv=2026-02-06&spr=https&st=2026-10-29T02%3A34%3A25Z&se=2026-10-29T03%3A34%3A25Z&sr=c&sp=r&sig=qGZkdQtffgSAVaJde7xFCVEt1UjkMhjlrIIS2pz3CEM%3D)

To provide your own Progress Indicator, take the following steps:

**Step 1.** Create a class for your custom progress indicator which adopts the IndicatorListenerDelegate protocol. For example, call this class SampleIndicatorListener. To satisfy the protocol, implement these three methods:

```swift
class SampleIndicatorListener : IndicatorListenerDelegate {
    func changeIndicatorVisibility(_ show: Bool) {
        // Called when the SDK needs to show or dismiss the indicator.
        // Add your implementation here.
    }
    func onSuspend() {
        // Called when the SDK needs to suspend the indicator.
        // Add your implementation here.
    }
    func onResume() {
        // Called when the SDK needs to resume the indicator.
        // Add your implementation here.
    }
}
```

**Step 2.** Set your SampleIndicatorListener object to be the listener for the ProgressIndicator.

```swift
// Create the instance of your custom indicator listener.
var indicatorListener = SampleIndicatorListener()
// Set the instance of your listener to the ProgressIndicator.
ProgressIndicator.setListener(indicatorListener)
```

#### Working example in Tutorial app

Refer to the following file for an example of customizing this UI:

- SampleIndicatorListener.swift