How to collect and generate report from performance logs for Hybrid app for webview in Android and iOS?

Hi,

How to collect and generate report from performance logs for Hybrid app for webview in Android and iOS. I have seen something like ‘enablePerformanceLogs’ capability feature for Android alone, how to implement the same in iOS apps. And also where will be the results collected? I need to generate the performance analysis report based on the data collected. As of now if I try to get the logs, I am getting only Logcat and Client in the collection of logs.

Thanks