从Android中现有的内容提供商查询DISTINCT记录 [英] Querying DISTINCT records from existing content providers in android

问题描述

我想要内容提供商提供的不同记录.

I want Distinct records from content provider.

我当前的代码:

String[] projection= {"_id","address"};
Cursor address =  getContentResolver().query(android.provider.Telephony.Sms.Inbox.CONTENT_URI,projection, null, null,"address ASC");

推荐答案

//在列名之前使用DISTINCT

//use the DISTINCT before the name of the column

String[] projection= { "DISTINCT _id", "DISTINCT address"};

Cursor address =  getContentResolver().query(android.provider.Telephony.Sms.Inbox.CONTENT_URI,projection, null, null,"address ASC");

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