1. In your Eclipse click Help->Install New Software
2. Click “Add” button and put this URL into resulting Pop-up (name it whatever you want): http://adt-addons.googlecode.com/svn/trunk/source/com.android.ide.eclipse.source.update/
3. Click “OK” and mark “Android Sources” checkbox
4. Click “Next” and any “OK”, “Agree”, “Next” or “Finish” buttons afterwards
5. Restart Eclipse after the installation and now you can step right into Android code from your debugger and see the source code for Android Java files right in the Eclipse editor

For the lawyers out there: use these tips at your own risk. I do and I’m yet to brick my phone or to lose any valuable information but that is not to say that you may not.

General requirement

Before doing anything described below make sure that your phone settings and information is backed up. Go to Phone->Settings->Privacy and make sure that “Back up my data” and “Automatic restore” options are checked. Otherwise you are at risk to lose valuable data on your phone permanently

G+ &Co

This “new kid on the block” uses internal memory very liberally (slap, slap, slap). I found out that periodically it helps to go phone->settings->Applications->Manage Applications, locate G+ app and click on “Clear data” button. Yes, it will give you a stiff warning saying that your phone will melt and the boogie man will comeandgetcha but I found that it really has no adverse effect except I’d have to log back in.

Other apps in this category (save to Clear data) are Browser and Market and you may find more but be careful. All the apps I mentioned are backed by Google servers, when you delete data it is replaced by a new set. On the exclusively phone-based apps you will lose all your settings and modifications

Get rid of unwanted apps (kind of)

No I’m not telling you to delete that “Busty blonds” app that you not using (are you?).  As I said – if you’re like me you are not giving anything up. But there is number of unused “default” apps that come with your phone. Unfortunately you cannot delete these apps easily but if you were updating these (especially automatically) and want to regain some space do the following:

Locate the app in the same settings area as above. Do “Clear cache”, “Clear Data” and then click on “Uninstall updates”. As a very minimum the app will shrink to half of its size. Latest app on my NexusOne to go this way was Facebook (I’m a bit proud of it)

Scary stuff or nuke your contacts

I know this is a dangerous proposition but let me give you some background. When you got your new phone it was initially populated with your Google contact list. Any modifications or additions from your phone are also synchronized back to Google servers. So about 1 year and change ago it become fashionable for 3rd party apps to synchronize their contacts to your phone also. Fortunately, Android does not combine accounts internally but keeps them separate and only unites these on your screen. If you’ve been syncing and trying things like Facebook, Twitter, Linkedin and our own Droidin you probably have tons of strange contacts that make no sense and by the way steal your precious memory.

I also found out that even when removed or disabled from settings->Accounts & sync just adding and removing and syncing leaves a lot of residue behind.

So gather your courage and locate the app called “Contacts Storage” and do the same “Clear data” trick. After that access your contacts and be horrified, you will see nothing there. However in a short while your missing contact information will be pooled from Google. Stiff warning: you will lose your call log and “Frequently called” section so don’t say I didn’t warn you. I gained about 10Mb with this trick so if you are very desperate you may consider this.

Start anew

This one is really dumb: say by-by to all the customization, pull out SD card and do factory reset. How? Phone->Settings->Privacy->Factory data reset. This will pretty much wipe out everything on your phone to a clean slate.

Then you can recall that sweet feeling you had 2 years ago when you first logged in into you brand new super-phone

If you have purchased any paid applications you will be able to add these back with no charge by going to Market and locating the app. Instead of “Purshase” button you will see “Install”

Hope this helps and Ho, ho, ho – Merry Christmas and a Happy New Year!

    private void setLayout() {
        // Get display for detecting the phone orientation
        final Display display = ((WindowManager) getSystemService(
            WINDOW_SERVICE)).getDefaultDisplay();
        if (display.getRotation() == Surface.ROTATION_0 ||
            display.getRotation() == Surface.ROTATION_180) {
            setContentView(R.layout.home);
        } else {
            setContentView(R.layout.home_l);
        }
    }

P.S.
Actually, ignore code above it will not work. All you really need to do is to detect what is larger – height or width and adjust layout accordingly

    private void setLayout() {
        // Get display for detecting the phone orientation
        final Display display = ((WindowManager)
             getSystemService(WINDOW_SERVICE)).getDefaultDisplay();
        final boolean isTall = display.getHeight() > display.getWidth();
        setContentView(isTall ? R.layout.home : R.layout.home_l);
    }