如何监听UserDictionary ContentProvider的更改？

Question

I've implemented a spelling checker for ICS/JB. The SpellingCheckerService.Session lets me set the suggestions in the popup menu that appears when you press a misspelled word (underlined in red) but doesn't notify me when the user presses "Add to Dictionary". It just adds it to the Android user dictionary, so my spelling checker will keep reporting that word as a typo.

I could query the user dictionary frequently but that is incredibly inefficient, especially since I'm not even notified if the menu opened.

Is there a way to listen for changes to the UserDictionary, which is a system ContentProvider? Better yet, is there a way to get notified when the user pressed "Add to Dictionary"?

Answer 1

您应该能够在UserDisctionary.CONTENT_URI上设置ContentObserver并获得更改通知。