Friday, November 1, 2013

What's New in Android 4.4

DevBytes: What's New in Android 4.4

KitKat has been optimized to run on a much broader range of devices, with special focus on the millions of entry-level devices that have as little as 512MB RAM. To help, we've created new APIs, better tools, and better documentation to let you create apps that perform well on all devices.

Check out this video summary of some of the most significant developer features in the latest Android release, including new ways to make your apps beautiful, NFC Host Card Emulation, a printing framework, the storage access framework, low-power step detector and step counter sensors, and more!

Be sure to get the full Android 4.4 API Overview

And take a look at our related DevBytes videos:

Sunday, August 25, 2013

SimplePageSpeed, test loading speed of your page with Android App

Google PageSpeed Insights analyzes the content of a web page, then generates suggestions to make that page faster.

This app, SimplePageSpeed, fetch simple test result for any page from Google PageSpeed Insights. The results include:
- PageSpeed score
- Top PageSpeed suggestions
- Resource size breakdown

It's a useful tool for webmaster to test performance of any webpage.

Thursday, January 31, 2013

Sync your photos with gpx, TrackMyPhotos on Android

It's a preliminary under test version.

The app TrackMyPhotos sync photos with recorded gpx file. It aim to sync photos from DSLR, Digital Camera without GPS.

The app will match the Exif date/time with the gpx log to find the location where the photos were taken. The photos will be copied to a new sub-folder, with updated Latitude and Longitude tags.

For the gpx source, the App "My Tracks" by Google is a good chooice, alternatively you can use portable GPS logger.

- Copy your photos and gpx file to your Android device.
- In the app, select the photos folder.
- Select gpx file.
- Tap on the Sync button.

After sync., you can view the photos on map using my another app geoLLERY to check the location. It can also manually edit the Exif geo tags to fine tune the location.

Tested gpx source:
- Exported from "My Tracks" by Google. After recorded, select MENU -> Save to external storage -> Save as GPX.
- gpx generated using desktop application gpicsync and portable GStarz GPS logger.

Tested photos source:
- Nikon D700
- Olympus E-PL3

Please understand that it's under tested. You are welcome to install and test. Also please help to improve it: No matter success or fail, please leave me comments to state what device you use, gpx source and camera to take the photos.

If fail, you can help me to improve it by sending me email (, with photos and gpx attached, and state what device you use. thx...thx...thx.

Get it on Google Play