My application allows users to send messages to others, so i was wondering is it possible to show the text sent in the default message app. I want to show the text in the existing conversation in the messaging app if its possible instead of creating a new conversation.
You could try Google Cloud Messaging ( GCM ). This link has a nice tutorial!
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I am writing an Android application that needs to communicate via sms. So for example application will send a message "Hi" to number 123, when number 123 receives the message it will be parsed on their phone by my application and acted on if it was determined to have been sent by my app.
Now I have the sending and receiving/parsing of messages working perfectly but I need a way to identify that the message was sent by my app. I could easily semd the message as "appName:hi" and check to see if the body contains 'appName' but the problem is if the user who receives my message doesn't have my app I would prefer if they just saw "Hi". So I was wondering if theres a way for example to send invisible characters or set some other identifying information either in the sms body or as part of the sms itself ie header. I would like to avoid data sms if possible and my app is intended to be offline.
Any ideas how I could accomplish this?
You can specify port when sending SMS. I do not know how to do this with Android API but since this feature has being supported for years by J2ME Android must support it too.
Your application should listen to this port and send to the same port. So, if user already has your application I think he even will not see the message in his inbox. At least this was the behavior in J2ME. If however he does not have the application yet he will either see it in inbox or will not see it at all. Check this with android. As far as I remember in J2ME it depends on the phone model.
I am trying to make an app that connect to the server.
The app is used by some devices.
If one of the devices upload something to the server, I would like other devices receive the notification about the server has something new.
My question is, how to check the server is change or not? How often we must check the server?
I wonder how the Online Messaging work, because someone send something, we receive the message ASAP
Is the concept can be use with my app?
Sounds like you want to take advantage of Google Could Messaging or GCM for short.
http://developer.android.com/guide/google/gcm/index.html
This could be a lightweight message telling the Android application that there is new data to be fetched from the server (for instance, a movie uploaded by a friend), or it could be a message containing up to 4kb of payload data (so apps like instant messaging can consume the message directly).
GCM is the standard for how your apps "talk" to your servers. Either for a message in it's entirety or just a message to go check the server because it's been updated.
I am writing a chat application on app engine using xmpp. My idea is to allow users to chat to one another. I can get messages to send to a google talk account, by taking the logged in user and removing the #gmail.com part of the address and replacing it with #appid.appspotchat.com )so for example if the logged in user is bob#gmail.com, the jid used to send from will be bob#appid.appspotchat.com). You can then send messages to an google talk account, e.g. jeff#gmail.com.
My problem is in receiving the messages back again. The developer pages show how the app itself can receive messages to the appid#appspot.com jid, but how do you get it to receive messages to the appid.appspot.com jid, and then present these messages tp the logged in user? The overall idea is when a user logs in, I will retrieve thri contact list, get the presence of their contacts (replacing gmail.com with appid.appspotchat.com) then present the available contacts to the user.
If this is not possible, is there a way to let the logged in user chat to other users in a different way? Ive briefly looked at the channel api but i don't think this is suitable?
You could use the Channel API to send a message down to a client when your server gets a message intended for that user. There's no facility to direct a XMPP message directly to a user on your own page; the XMPP API is used to send messages to users signed in to XMPP clients (such as Gmail, Pidgin, etc).
You can't use anything#your_app_id.appspot.com. Instead you must use anything#your_app_id.appspotchat.com as described in XMPP Addresses.
Is it possible to open my mobile Java program with an SMS?
And I don't want this SMS to be stored in the inbox. I'm looking for the kind of "Control SMS" that banks use for their mobile applications. I want the same in my application: send SMS to the mobile, the mobile device shows a message on screen that will be opened by the program, and this SMS should not be saved in the inbox.
Are you sure that you're not mistaking push notifications/cloud to device messages for SMS's?
Push/C2D messages are similar to SMS's inasmuch as a central server sends a message out to devices and many apps then display a popup based on that message, but the implementation is completely different. If you're not mistaking the two, is there a reason you'd prefer to use SMS's that are handled differently than most instead of push/C2D messages?
Here's the documentation for Apple's Push Notification Service.
Here's Android's Cloud to Device Messaging documentation which serves the same purpose.
Have a look and see if that would serve your needs.
If you are looking for completely client side J2ME based solution for feature phones - then try push registry. It is available above MIDP2. I don't know the exact details but there you can define event and triggers which will be stored by phone OS and invoked automatically when particular type of event occurs.
SMS sending is separate issue but there are tools available for that definitely.
I am familiar in using xmpp library,for android i'm using asmack library.In Google chat also asmack is used.i can write an application to send/receive messages using xmpp.But now i want to track google chat messages in my application.what ever the user do in google chat the same sholud be happening in my application.Suppose that user logged in google chat,in my appication also he is logged in.Sent messages /Incomming messages also should be in sync.i m able to do every thing except synchronizing outgoing sms.How to capture the packet when user is send a message from google chat into my application. ?
You should not be able to do that (unless rooted) as it would be security issue - anyone could sniff your any network activity that way. If your app sign in to the google talk server (as any other client) then you should receive copies of all the conversations, but that's it.