读取联系人 Xamarin Android（发布版）时，ICursor 为空

Question

Getting contacts from xamarin android is pretty straightforward and I've been using a LoaderManager / CursorLoader to implement it rather that the Xamarin.Contacts Addressbook which is slow for 100+ contacts or more.

So my question is that on the DEBUG build all contacts will just returns fine but when I build it to RELEASE and casting the data to ICursor it will just returns null .

So I logged the possible causes and turns out it does not have the ICursor interface implementation when RELEASED .

Any info would be helpful. Thanks.

Answer 1

不是将ICursor cursor = data as ICursor而是必须将其转换为ICursor cursor = data.JavaCast<ICursor>();