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| EGlobioTrainingCenter Philippines SEMINAR ON ANDROID MOBILE APPS DEVELOPMENT |
Android programming requires a couple of things, chief among
them is your knowledge of the Java programming language. You don’t need to
cover all the knowledge base of Java because android applications are not made
exactly the same way as mainstream Java apps. You wouldn't code an android app
the same way you would code a web app, the android app would use a different
set of libraries and a different set of tech stack.
To (quickly) check your android dev readiness, you should be
able to answer the following questions:
1. What do you use
@Override annotation for?
2. Why would you use
an anonymous inner class for event handling?
3. The extends
keyword is used to inherit from a class while the implements keyword is used
for what?
4. A static member
belongs to what? An instance member belongs to what?
5. What is the
difference between Runnable and Thread?
6. When is
finalize() method called, and who calls it?
7. When will you use
the addActionListener() method? Where do you usually use it?
These are pretty easy for an experienced Java programmer, if
you were able to answer the above questions with confidence, you should be
ready to dive into android programming.
But I am C# programmer
It’s nice to know that you are interested in android, I
would have thought that the logical step forward is Windows 8 mobile
programming (maybe you are also doing that but are curious with android).
You will not struggle a lot because Java and C# are actually
more similar than they are different. You already are indoctrinated on OOP,
know the difference between classes and objects and have the coded the basics
of UI programming.
You will miss Visual Studio, especially the GUI builder. Yes
there are GUI builders for android but they are not to the same level of ease
like VS. You will be alright and will probably coast through it.
But I am PHP web programmer
You will need a basic Java background. Programming native
apps for android is more akin to developing desktop apps rather than web apps.
To handle events in desktop apps, familiarity with the
call-back concept is required (delegates for C# devs), as a web programmer you
probably did not have a lot of chances to code this way. Web apps use the
request-response mechanism of HTTP to handle events.
Getting ready for android development
1. Install the
android sdk. I put up a small set of instructions here. You must have installed
a Java Development (JDK 1.5 or higher) enviroment before you install the
android SDK.
2. Get a terminal
window (Terminal.app if you’re on a Mac, xterm or gnome-terminal on Linux and
cmd on Windows).
3. Fire up the
android SDK manager by typing android.
4. Check your
internet connection, you will need it to download the SDK tools and APIs.
5. Select the API
levels and the tools that you want to download. IF you want develop against
android Gingerbread, you will select at a minimum the following
a) SDK tools b)
platform-tools 3) Android 2.3.3
6. Create an AVD
(Android Virtual Device). You will need this to deploy and test your android
applications. A better idea is to actually buy a (cheap) android physical
device. The AVD is excruciatingly and painfully slow.
7. You can develop
using Eclipse, in which case you need to download the Eclipse ADT. If you will
use the CLI (command line) then you are already set.
Next steps is to either get a book on android
dev or follow the examples on developer.android.com/training or maybe attend an
android workshop or all of the above. |
| Android Training Manila Philippines |
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