Android - 如何从游标中删除项目？ [英] Android - how to delete item from a cursor?

问题描述

假设我使用以下光标来获取某人的通话记录：

Let's say I make the following cursor to get the call log of someone:

String[] strFields = {
    android.provider.CallLog.Calls.NUMBER, 
    android.provider.CallLog.Calls.TYPE,
    android.provider.CallLog.Calls.CACHED_NAME,
    android.provider.CallLog.Calls.CACHED_NUMBER_TYPE
    };

String strOrder = android.provider.CallLog.Calls.DATE + " DESC"; 

Cursor mCallCursor = getContentResolver().query(
        android.provider.CallLog.Calls.CONTENT_URI,
        strFields,
        null,
        null,
        strOrder
        );

现在我将如何删除此光标中的第i项？这也可能是一个光标获取音乐列表等等。所以我必须问 - 这甚至可能吗？我可以理解某些游标不允许第三方应用程序从中删除。

Now how would I go about deleted the ith item in this cursor? This could also be a cursor getting list of music, etc. So then I must ask - is this even possible? I can understand for certain cursors that 3rd party apps wouldn't be allowed to delete from.

谢谢。

推荐答案

很抱歉，您无法从光标中删除。

Sorry mate you can't delete from a cursor.

您必须使用ContentResolver或某种类型的SQL调用..

You must either use your ContentResolver or a SQL call of some sort..

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