Latitude API

With the recent addition of OAuth 2.0 support for the Latitude API, it is now easier than ever to start writing applications that utilize users’ location history or current location if they have opted in to sharing this information.

This post includes some examples of how you can use the powerful Latitude API to make compelling location-based applications.
Location History
There are many interesting ways you can use location history to create an interesting app. For example, Latify shows my location history on my Android phone so I can easily keep track of where I’ve been. You can use location history to answer questions like “Where was I on September 17th?” or you can analyze location history to show interesting stats. You can also export location history to Google Fusion Tables.
The possibilities expand when you use location history in conjunction with other data sets. For example, you can show location history lined up with transaction history, RSS feeds, or photo albums so users can see exactly where they were for a particular purchase, news event, or photo.
Current Location
The Latitude API allows you to access a user’s current location from a mobile device or a web server. For example, Moveable Weather allows users to call a phone number that tells them the weather based on their current Latitude location.
If you’re writing a mobile group messaging app, you can use the Latitude API to let users opt in to location sharing, allowing everyone in the group to see everyone else’s current location, without needing any location logic in your app.
These are just a few examples of the features of the Latitude API, which also includes storing location history, accessing city level location, and deleting location history. Check out the documentation to get started, or try browsing featured applications to get an idea of what you can build.


Google Maps 5.3 for Android: See your location history dashboard and more

We’re happy to announce Google Maps 5.3 for Android, which lets you see your Google Location History dashboard, check in at “home,” and add your own aspects for places when rating them.

Location History dashboard

If you’ve enabled Location History for Google Latitude, you’ve been able to visualize interesting trends in your location history with a personal dashboard at on your computer. Now, you can also see your dashboard on your phone by tapping View location history from your Latitude profile. You’ll be able to see right on your phone how far you’ve travelled as well as an estimate of how much time you’ve spent at home, at work, or out.

If you haven’t yet, you can enable Location History from your computer or from Latitude’s Settings menu on your phone. Location History is 100% opt-in and is private to you and nobody else. You can always delete any of your location history from the Manage History tab or correct the estimated work and home locations from the dashboard on your computer.

View your location history dashboard from your Latitude profile on your phone and see estimates of where you’ve spent your time.

Check in at home

Now that you can see how much time you spend at “home”, you might want to let friends know when you’re there. Checking in at places using Latitude is another way to keep a history of places you’ve been and also lets you share when you’re there. I love letting friends and family know when I’m at a cafe or park, but sometimes I want them to know that I’m relaxing at home or made it back safely from a road trip. So now, I can start checking in at “home” in Latitude:

  1. Check in from Latitude and tap “Home – Tap to set your location” at the bottom of the nearby places list if you don’t have one yet.
  2. Use the estimated current address or enter in your home address yourself.
  3. Once you’ve checked in at home once, “Home” will appear at the top of the list when you’re checking in near there.

Like Latitude and other check-ins, checking in at home is entirely opt-in. Your set “home” location is not searchable and only you can check in there. Just like any other check-in, you can choose with whom to share your home check-ins (along with your name and address info).

Add your own aspects for places

When you’re rating places on the go in Maps using Google Places with Hotpot, you could always quickly leave feedback on a specific aspect or characteristic of a place, such as the food or ambiance. Before, we’d automatically include aspects about places that were commonly mentioned in reviews. Now, you can add your own aspects for each place. So if you think a place has a beautiful view or great music, you can add it yourself and quickly share it with the world.

When rating places, you can add your own aspects like “music” for places and leave quick feedback.

To get started, update Google Maps from Android Market on devices with Android OS 1.6+ anywhere Google Maps and Latitude are already available.