##Situation I'm a newcomer to the Android world. I'm starting a new project to write an Android app that sends and receives SMS messages and is in sync with a web server. (I'll describe the app later)

I first tried to write the app with SL4A and python, but it had lot's of bugs (e.g sending long SMS messages resulted in a NullPointerException!)

Android's framework in really complicated (at least for me). You have Activities, Services, Receivers, AsyncTask, Intent and so on. I'm really confused right now and don't know the right way to tackle this problem.

##Problem

There is a web server and a mobile phone.

Web server knows all the logic. It knows what SMS messages should be sent and what shall be done if the mobile phone receives a message. So the mobile phone communicates with the server through HTTP.

###Sending messages The phone should pull information about what messages it should send every 30 seconds.

• If there exists any unsent messages, the server will respond with a JSON object.
• The mobile will then send each message and tell the server if the message was successfully sent.
• It is also nice to have a log of what is going on, (what messages was sent, what responses did the phone get from the server) on a UI element on the phone.

###Receiving messages When the phone receives a SMS message:

• It should tell the server
• It should show log on screen

##Question

Can you suggest a good architecture for this problem?

Should I create Services?

Should I create AsyncTasks?

...

Situation

I'm a newcomer to the Android world. I'm starting a new project to write an Android app that sends and receives SMS messages and is in sync with a web server. (I'll describe the app later)

I first tried to write the app with SL4A and python, but it had lot's of bugs (e.g sending long SMS messages resulted in a NullPointerException!)

Android's framework in really complicated (at least for me). You have Activities, Services, Receivers, AsyncTask, Intent and so on. I'm really confused right now and don't know the right way to tackle this problem.

Problem

There is a web server and a mobile phone.

Web server knows all the logic. It knows what SMS messages should be sent and what shall be done if the mobile phone receives a message. So the mobile phone communicates with the server through HTTP.

Sending messages

The phone should pull information about what messages it should send every 30 seconds.

• If there exists any unsent messages, the server will respond with a JSON object.
• The mobile will then send each message and tell the server if the message was successfully sent.
• It is also nice to have a log of what is going on, (what messages was sent, what responses did the phone get from the server) on a UI element on the phone.

Receiving messages

When the phone receives a SMS message:

• It should tell the server
• It should show log on screen

Question

Can you suggest a good architecture for this problem?

Should I create Services?

Should I create AsyncTasks?

...

Salam

##Situation I'm a newcomer to the Android world. I'm starting a new project to write an Android app that sends and receives SMS messages and is in sync with a web server. (I'll describe the app later)

I first tried to write the app with SL4A and python, but it had lot's of bugs (e.g sending long SMS messages resulted in a NullPointerException!)

Android's framework in really complicated (at least for me). You have Activities, Services, Receivers, AsyncTask, Intent and so on. I'm really confused right now and don't know the right way to tackle this problem.

##Problem

There is a web server and a mobile phone.

Web server knows all the logic. It knows what SMS messages should be sent and what shall be done if the mobile phone receives a message. So the mobile phone communicates with the server through HTTP.

###Sending messages The phone should pull information about what messages it should send every 30 seconds.

• If there exists any unsent messages, the server will respond with a JSON object.
• The mobile will then send each message and tell the server if the message was successfully sent.
• It is also nice to have a log of what is going on, (what messages was sent, what responses did the phone get from the server) on a UI element on the phone.

###Receiving messages When the phone receives a SMS message:

• It should tell the server
• It should show log on screen

##Question

Can you suggest a good architecture for this problem?

Should I create Services?

Should I create AsyncTasks?

...

##Situation I'm a newcomer to the Android world. I'm starting a new project to write an Android app that sends and receives SMS messages and is in sync with a web server. (I'll describe the app later)

I first tried to write the app with SL4A and python, but it had lot's of bugs (e.g sending long SMS messages resulted in a NullPointerException!)

Android's framework in really complicated (at least for me). You have Activities, Services, Receivers, AsyncTask, Intent and so on. I'm really confused right now and don't know the right way to tackle this problem.

##Problem

There is a web server and a mobile phone.

Web server knows all the logic. It knows what SMS messages should be sent and what shall be done if the mobile phone receives a message. So the mobile phone communicates with the server through HTTP.

###Sending messages The phone should pull information about what messages it should send every 30 seconds.

• If there exists any unsent messages, the server will respond with a JSON object.
• The mobile will then send each message and tell the server if the message was successfully sent.
• It is also nice to have a log of what is going on, (what messages was sent, what responses did the phone get from the server) on a UI element on the phone.

###Receiving messages When the phone receives a SMS message:

• It should tell the server
• It should show log on screen

##Question

Can you suggest a good architecture for this problem?

Should I create Services?

Should I create AsyncTasks?

...