Do#

Android, PHP

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Which one?!

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[patater-salad]

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Do it yourself!

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Business Layer

In most projects the main part of the application is the business layer but here we've got a very simple straightforward business layer! :)

I'm going to draw a domain model to solve the big problem! 

What entities do we have in a Todo list  program?!

Todo

YES! thats it! We just have a Todo job!

Lets just keep it simple:

a Todo fields:

ID (intiger)

Title(string)

and a Todo methods:

getters and setters

:) That's it!

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Layered programming

In modern programming methods we should have at least 3 separated layers:

Presentation layer

Business layer

Data layer

You can see this if you want to know more:

In Android:

Presentation layer is done by making activities.

Business layer is done by classes we make (main part).

Data layer is the SQLite database that we use to save our data.

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Todo list is a good thing!

I think the best way of learning a tool is to trying to do things using it!

I decided to make a Todo list.

It's going to be a simple one but we can improve it and put it in google play and make a lot of money! (kidding!)

But before we start I consider you know:

OOP

Java

How to start an android project

How to run an android application 

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Let's begin ANDROID!

Hey, I'm going to learn android and I think it's a good place to share what I learn.

As you know Teaching is the best way of learning! 

Yeah!