While I was doing some work on an android app (possibly related to my previous post ;)) I came across a problem. Google don’t seem to want people messing with their SMS inbox, for whatever reason, so have decided to put as little documentation on their site as possible.
So, in order to retrieve data from an SMS inbox you need 3 things:
- The URI of the inbox
- A Cursor to traverse the texts
- Some idea of what fields will be returned by the cursor.
After some Googling, I have found that most people use the inbox URI like so:
Uri uriSms = Uri.parse(“content://sms/inbox”);
Cursor c = getContentResolver().query(uriSms, null,null,null,null);
I have tried this and it works, if you want to retrieve the texts that people have sent you, but not for ones you’ve sent.Here is the complete list of URI’s for SMS.
All: content/all
Inbox: content/inbox
Sent: content/sent
Draft: content/draft
Outbox: content/outbox
Failed: content/failed
Queued: content/queued
Undelivered: content/undelivered
Conversations: content/conversations
Others have said online, this is not the best way to do it. You can also use the built in SmsManager class but I haven’t had time to look at that yet. Hopefully its easy enough to use.
Next up is the cursor, which is easy enough, and is used as follows:
Cursor myCursor = getContentResolver(UriSMS,null,null,null);
The 2nd “null” here is for the fields you want to retrieve. Putting “null” is effectively like saying “SELECT * FROM inbox”. We can specify other fields to retrieve like “body” or “date” or “person” but what I had trouble with was actually finding documentation on which fields are available.
Which brings me to my 3rd point. There is a built in method on the cursor that can return the name of each field. Using this, I’ve made a list of what fields can be retrieved from the outbox.
Starting from myCursor(0) to myCursor(15):
0: _id (long)
1: thread_id (long)
2: address (String)
3: person (String)
4: date (long)
5: protocol
6: read
7: status
8: type
9: reply_path_present
10: subject (String)
11: body (String)
12: service_center
13: locked
14: error_code
15: seen
So there ya have it. Some basic SMS retrieval info. I might update this when I look into the SmsManager class in more detail.
C ya.