I have followed this list view with group header sample. It works fine. The IOS by default provides the "Jump list" feature in the form of vertical alphabet index. But this is not available on android and windows. Android has "fast scroll" feature, but does not provide a vertical alphabet index same as IOS. For this, I find that it requires custom rendering. I am facing problem while custom rendering. How can I provide the same "Jump list" feature as of IOS to android and windows for a grouped list view as shown below?
Same post on stack overflow.