I didn't find a lot of instruction setting up crosswalk for iOS it seems like it should be as simple as:
cordova plugin add cordova-plugin-crosswalk-webview
cordova build ios
Because I've had issues with plugins not taking effect before I do the following:
cordova plugin add cordova-plugin-crosswalk-webview
cordova platform remove ios
cordova platform add ios
cordova build ios
After having done this, when I capture the view hierarchy and inspecting that it's still using "UIWebView" which has a "UIWebBrowserView" inside of it (which is inside of a scroll view and there are a couple image views too).
Also, navigator.userAgent is as follows:
"Mozilla/5.0 (iPad; CPU OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Mobile/13B143 (5618403776)" = $1
Another test someone mentioned was essentially:
if (window.indexedDB)
console.log('Using crosswalk');
else
console.log('Not using crosswalk/wkwebview');
And window.indexedDB is undefined.
So... what do I need to do so that the app uses wkwebview?
As JesseMonroy so helpfully answered(feel free to upvote him) the cordova crosswalk plugin is only for android.
Because of apple's terms of service, crosswalk for iOS uses wkwebview instead of what non-ios version of chrome would use.
Since there is no cordova plugin I know of for crosswalk iOS, I found plugins for WKWebView
The plugin I used was: https://github.com/Telerik-Verified-Plugins/WKWebView
This is probably a better option: https://github.com/apache/cordova-plugin-wkwebview-engine.. But it errored for me.
As stated by Honry:
Crosswalk will soon provide a cordova plugin for Crosswalk ios, see ticket https://crosswalk-project.org/jira/browse/XWALK-4911
XWalk will not be supporting an iOS plugin afterall because it does not provide any must have advantages over wkwebview