Android mobile phone development of reading Inbox specified number of SMS

First, a brief introduction: Managedquery ()

Parameters:

1.uri:content Provider The resource index that needs to be returned. For example: Receive the mailbox:

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Content://sms/inbox

2.Projection: Identifies which columns need to be included in the return data. For example: ID number, address, message body, read status ...

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New string[] {"_id", "address", "body", "read"}

3.Selection: Filter parameters that match the criteria for a query.

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"Address=?" and read=? "

4.SelectionArgs: Ditto

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New string[] {"15061978220", "1"}

5.SortOrder: Arrange the return information.

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"Date desc"

Two questions to face: 1. How to extract the body of the message.

2. How to extract the effective information in the body.

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String smsbody = cursor.getstring (Cursor.getcolumnindex ("body")); String code = smsbody.substring (Smsbody.indexof (",") +1, Smsbody.indexof ("."));

Extract the substring with substring to "," "Start,". End Gets the position of the string with indexof ("").

Now attach the source program

The code is as follows

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Package My.learn.ReadSMS; Import android.app.Activity; Import Android.database.Cursor; Import Android.net.Uri; Import Android.os.Bundle; Import Android.view.View; Import Android.widget.Button; Import Android.widget.TextView; public class Readsmsactivity extends activity { Final String sms_url_inbox= "Content://sms/inbox"; Private Button mybtn; Private TextView Mttxt;    /** called when the "activity is" is a created. */     @Override   & nbsp public void OnCreate (Bundle savedinstancestate) {         super.oncreate ( Savedinstancestate);         Setcontentview (R.layout.main);         mybtn = (Button) Findviewbyid (R.id.clickbutton);         mttxt = (TextView) Findviewbyid (r.id.showtxt);    }     public void doreadsms (view view) {         Cursor Cursor = null;//cursor         cursor = managedquery (Uri.parse ("Content://sms/inbox"), New string[] {                 _id "," Address "," body "," read "}," address=? " And read=? ",                 New String[] {"15061978220", "1"}, "date desc");         if (cursor!= null) {//If SMS is read-mode      & nbsp;      Cursor.movetofirst ();             if (Cursor.movetofirst ()) { String smsbody = cursor . GetString (Cursor.getcolumnindex ("body")); String code = smsbody.substring (Smsbody.indexof (",") + 1, Smsbody.indexof (".")); Mttxt.settext (Code.tostring ()); } } } }

In the absence of a real machine, we can use the simulator to achieve.

First in the DDMS mode, "Emulator control", "Incoming number", select "SMS", fill in the required "message", click the "Send" button, so that the simulator can receive text messages.

Program Run Result: