widget - Android: onAppWidgetChanged doesn't appear to exist -

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this description of appwidgethost.startlistening():

start receiving onappwidgetchanged calls appwidgets

i can't find reference mysterious onappwidgetchanged thing anywhere. google hits quotes same piece of documentation.

what referring to? 1 need call, override, or implement widget updates?

its unlikely need implement widget host yourself. home page existing widget host. looking implement widgetprovider means extending android.appwidget.appwidgetprovider , overriding 2 methods:

onupdate() , onreceive() time onenabled too. never need implement widget host, if goal please clarify. widget provider broadcast receiver designed run inside widget host (usually home). widget provider might live milliseconds, process broadcasted events , processing 1 of them mandatory , must specified in manifest. communicate out information widget provider broadcast receiver extends context , can issue startactivity(intent) or startservice(intent) think need unless implementing widget host.


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