The Android SDK and Development Tools

July 17, 2010

FINALLY!  It only took about 2-3 days for me to get this thing working.  This post is going to outline what I did.  The reason being that I might have to go through this process again sometime in the future and also finding help online was not that easy.

STEP 1: Get the right version of Eclipse. At the time of this post Eclipse 3.6 is out, well you don’t want this version since Google has said that there are problems with this version and their SDK. Instead you want to get Eclipse 3.5.2, just to the download page and select to see older versions of Eclipse, then fine 3.5.2 and download. Depending on your connection this shouldn’t take too long.

STEP 2: Install Eclipse. For this step just see my previous post, all the steps are exactly the same even though you are installing Eclipse 3.5.2 and not Eclipse 3.6.

STEP 3: Download the Android SDK. Just enter Android SDK into Google and the page you want should be the first link. Download the Linux version (I assume you are using Linux, though Mac users might also be able to find some help in this post). It’s a pretty “small” file so it shouldn’t take that long to download. Unpack the file with tar -xzf <filename>. Then save the extracted directory somewhere, we shall refer to this location as SDK_HOME.

STEP 4: Install the SDK. First you will want to add SDK_HOME/tools to you PATH. To do this just open up a terminal and enter, PATH=$PATH:SDK_HOME/tools.
Remember that SDK_HOME is the full path of where you saved the extracted directory. Now while you are still in the terminal run;
cd SDK_HOME/tools
./android

This will open up and SDK manager UI. Select available Software (or something along those lines) and then select everything in the right column. You don’t need to select everything but it doesn’t hurt, since I’m not sure exactly what you need since I didn’t read all the options. Once you have done this click install and then wait a while for everything to be downloaded and installed. At the end of this process you will get a window prompting you to restart the manager, please do so.

STEP 5: Open Eclipse. This step might not be necessary for some people but it was for me and I figure that it will be for others. So as to avoid any potential future problem please do as instructed.
Go to Help > Install New Software…, then click the Add button to the right of the drop down menu. In the box that appears enter Galileo Software Repository as the name and http://download.eclipse.org/releases/galileo/ as the location, and then hit OK. Then in the filter box (the text box below the drop down menu) enter “server”. You should see an item called “WST Server Adapters…“, select this item (or everything in the same group if you want) and then press next. Agree to the license and then hit finish. If at any point you are asked if you trust the source of the software say yes (or whatever the appropriate option is).

STEP 6: Integrate the Android SDK into Eclipse. Once again go to Help > Install New Software…, and click the Add button as before. This time in the name field enter Android Development Plugin (or any appropriate name), and in the location enter https://dl-ssl.google.com/android/eclipse or http://dl-ssl.google.com/android/eclipse. Now select everything and click next. Agree to the license and say that you trust the software source if asked at any point.

STEP 7: Tell Eclipse where to find the Android SDK. Go to Window > Preferences. In the left column select Android, if you don’t see Android then a previous step did not work as intended and I’m not sure how to help you (I suggest removing everything relating to Android and Eclipse from you system and starting over). Now select the text box for the location of the SDK, enter SDK_HOME (hopefully you remember where it is).

STEP 8: Create an Android emulator. Go to Window > Android SDK and AVD Manager. On the right select New and enter a desired name for your emulator and size for the virtual SD card.

If everything went as planned you should now be able to start development.  For tutorials just search Google or the Android SDK site.

The following site was pretty helpful when I encountered problems installing the Android Development Plugin.  Additionally, this YouTube video is pretty useful and documents all the steps, other than the method you should use to install Eclipse.

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Eclipse

July 16, 2010

I’m sure that you have heard of Eclise.  If not then all you need to know is that it is a very popular (and for a good reason) IDE mainly for Java.  However, it does also have C/C++ support, but it is mostly used with Java.

As you know, I’m not big on programming in Java.  But I recently purchased a Nexus One phone, and the IEEE SECon got me a little interested in Android application development.  I don’t plan for anything I make to be widely distributed, but rather just for personal use.  In any case, I would still need a place to create my programs.  Sure this can be done with a normal text editor and the command line but why bother with that when Eclipse and the Android SDK make it so simple?

I’m going to talk about getting and installing Eclipse onto you system (which I will assume to be Ubuntu).  Sure you could just run sudo apt-get install eclipse but this way assumes that you are using the OpenJDK version of Java and not Sun’s. So if you are using SunJava, which it seems most people do, then this how-to is for you.

First head over to the Eclipse site and download the IDE. To find the site just use Google and then do some reading and clicking, so there is no need for me to post a link. If you can’t get past this step then you probably shouldn’t be thinking about using Eclipse.

Next we will open the package you have just downloaded and then move it to the /opt directory. To do this just run the following sequence of commands:

tar xzf <filename>
sudo mv eclipse /opt/eclipse
cd /opt
sudo chown -R root:root eclipse
sudo chmod -R +r eclipse
sudo chmod +x `sudo find eclipse -type d`

The chown command changes the owner of a file/directory, if you have been reading this blog then you should be able to figure out what the other commands do.

Next we will add eclipse executable to your path.

sudo touch /usr/bin/eclipse
sudo chmod 755 /usr/bin/eclipse
sudoedit /usr/bin/eclipse

then add this to the file

#!/bin/sh
#export MOZILLA_FIVE_HOME="/usr/lib/mozilla/"
export ECLIPSE_HOME="/opt/eclipse"

$ECLIPSE_HOME/eclipse $*

I’m not all to sure exactly what the touch command does but you can look that up yourself (either online or with man).

Finally, the “most important” part; creating a GNOME-menu icon. This is something that would normally be done when you use the apt-get method.


cd /usr/share/applications
sudo nano eclipse.desktop

And enter the following into the created file;

[Desktop Entry]
Encoding=UTF-8
Name=Eclipse
Comment=Eclipse IDE
Exec=eclipse
Icon=/opt/eclipse/icon.xpm
Terminal=false
Type=Application
Categories=GNOME;Application;Development;
StartupNotify=true

All the stuff entered into the file makes perfect sense, so if you ever wanted to make a menu item for any other program you now know how.

All of these steps can be found at http://flurdy.com/docs/eclipse/install.html.