在Android默认的短信应用中接收和存储短信的正确方法是什么？

Question

My android app's primary purpose is to delete sms messages easily. Since from kitkat, there is a requirement that the app has to be the "default sms app", I ended up creating an app that has all the necessary receivers.

On the SMS Receiver, currently the app is receiving the sms and saving it, with the following code.

public override void OnReceive(Context context, Intent intent)
    {
        try
        {
            if (intent.Action != IntentAction) return;
            //context.SendOrderedBroadcast(intent, IntentAction);
            var bundle = intent.Extras;

            if (bundle == null) return;

            var pdus = bundle.Get("pdus");
            var castedPdus = JNIEnv.GetArray<Java.Lang.Object>(pdus.Handle);

            var msgs = new SmsMessage[castedPdus.Length];

            var sb = new StringBuilder();
            String sender = null;
            for (var i = 0; i < msgs.Length; i++)
            {
                var bytes = new byte[JNIEnv.GetArrayLength(castedPdus[i].Handle)];
                JNIEnv.CopyArray(castedPdus[i].Handle, bytes);

                msgs[i] = SmsMessage.CreateFromPdu(bytes);
                if (sender == null)
                    sender = msgs[i].OriginatingAddress;
                sb.Append(string.Format("SMS From: {0}{1}Body: {2}{1}", msgs[i].OriginatingAddress, System.Environment.NewLine, msgs[i].MessageBody));

                putSmsToDatabase(context, msgs[i]);                    

                Toast.MakeText(context, sb.ToString(), ToastLength.Long).Show();

            }
        }
        catch (Exception ex)
        {
            Toast.MakeText(context, ex.Message, ToastLength.Long).Show();
        }
    }
    private void putSmsToDatabase(Context cntxt, SmsMessage sms)
    {
        ContentValues values = new ContentValues();
        values.Put("ADDRESS", sms.OriginatingAddress);
        values.Put("DATE", sms.TimestampMillis);
        values.Put("READ", 0);
        values.Put("STATUS", sms.Status);
        values.Put("TYPE", 1);
        values.Put("SEEN", 0);            
        values.Put("BODY", sms.MessageBody);

        // Push row into the SMS table
        Android.Net.Uri inboxURI = Android.Net.Uri.Parse("content://sms/inbox");
        var uri = cntxt.ContentResolver.Insert(inboxURI, values);            
    }

This code seem to save it, but the problem is that none of the other sms apps shows these messages stored from my app. Everywhere that i searched for SMS receivers, saving part code is not really provided. Just the receiving the sms and the Toast display is provided. This created the below question.

1. As a default sms app, is it really necessary that my app should save the sms to "content://sms/inbox"?
2. If yes, What is wrong with the save shown in the above sample. I have a vague understanding that i may have something to do with conversation/threads. But, since i'm getting started with raw android development, probably i have understood it completely wrong. Tried creating the thread using thread_ids, which doesn't seem to work either.

This piece of the puzzle is stopping me from the roll out of the app. Please help.

Answer 1

All column names should be lowercased as it appears that the Sms ContentResolver is constructing "quoted" column strings within the sql statement.

While the statements:

values.Put("ADDRESS", sms.OriginatingAddress);

and

values.Put("address", sms.OriginatingAddress);

Should resolve to a SQL statement that is case insensitive, it is not.

Thus you should provide the columns names as returned from Telephony.TextBasedSmsColumns (which are all lowercase):

Your code becomes:

ContentValues values = new ContentValues();
values.Put("address", sms.OriginatingAddress);
~~~

If your app is targeting a min. of API19:

ContentValues values = new ContentValues();
values.Put(Telephony.TextBasedSmsColumns.Address, sms.OriginatingAddress);
~~~

The SMS ContentProvider was not publicly documented until API 19(?):

Telephony.TextBasedSmsColumns : TextBasedSmsColumns