Detecting and fixing App Hangs in iOS and iPadOS apps.
AppHangs is a common issue that can occur in iOS and iPadOS applications, impacting their performance and user experience. It happens when an application becomes unresponsive to user input for 250 milliseconds or more.
This unresponsiveness may lead to user frustration and potential abandonment of the app, making it essential for developers to monitor and address these issues to ensure a smooth and enjoyable user experience.
AppHangs in iOS and iPadOS apps can occur due to various reasons that impact the application's responsiveness. Some common causes include long-running operations on the main thread, which can block user interactions, deadlock or race conditions that prevent the app from processing user input, unresponsive UI components that fail to respond to user actions, and slow I/O operations that can lead to delays in loading or processing data.
The issue report provides the stack trace of the main thread, pointing to the line of code that triggered the AppHang. In addition to the stack trace, the activity trail, which is a chronologically ordered list of events that occurred prior to the issue, helps developers retrace how the user was interacting with the app before the problem arose.