[Q] How to use AppWidgetProvider in my application?

Im now developing a simple widget.. Its really new for me, Im not really understand on how to use the AppWidgetProvider

My current widget is only displaying image which it will directly link to a website when user click it..

So, my question is, which of these should I use in AppWidgetProvider ?

As we know there are 4 of them..

onDeleted(context)
onDisabled(context)
onUpdated(context)
onReceived(context)

can u explain a bit more about it? and the steps for me to make the code for linking the image to website.

thanks friends