some Available Uri string for sms.
String strUriInbox = "content://sms/inbox"; //SMS_INBOX:1 收件箱
String strUriFailed = "content://sms/failed"; //SMS_FAILED:2 失败的
String strUriQueued = "content://sms/queued"; //SMS_QUEUED:3 队列中
String strUriSent = "content://sms/sent"; //SMS_SENT:4 已发送
String strUriDraft = "content://sms/draft"; //SMS_DRAFT:5 草稿箱中
String strUriOutbox = "content://sms/outbox"; //SMS_OUTBOX:6 待发箱
String strUriUndelivered = "content://sms/undelivered"; //SMS_UNDELIVERED 未送达
String strUriAll = "content://sms/all"; //SMS_ALL
String strUriConversations = "content://sms/conversations"; //you can delete one conversation by thread_id
String strUriAll = "content://sms" //you can delete one message by _id