Category | android

We just released Geo Elevation App for Android! This app let you draw a path by touching screen, and you can generate a "Cross-Section" elevation chart. This is some sort of side-view when you cut through the object. For example, if you are wondering how Mt. Fuji looks like from the side, draw the pass across the peak, then simply hit "Get Elevation" button. Not only for study usage, but also this is useful for biking or jogging. Draw a path through your favorite training routes, then the app will tell you the hilly areas v.s. flat area in the comprehensive chart. Unlikely other elevation...

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Need to measure your land? How long is your jogging path? What is the area size of New York State? Geo Measure app in Android will give you the answer right away. Check out the intuitive drag & drop interface to measure the area and distance in a few clicks away. If you find interesting / useful way to use the app, please leave your feedback in the comment area. Check out the demo movie here The app also works for tablet device. In addition, we will cover some of those programming materials in our new online course, Mobile GIS (Starting this september). Download Geo Measure...

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In this smartphone generation, we expected have a full browser functionality in API; iOS SDK is coming with UIWebView and Android has WebView. This means, developer is able to take advantage the core engine, such as JavaScript parser. This might make developer's life easier sometime because we can reuse same libraries from JavaScript - e.g form + validations, drawing chart and so on. I looked around android documentations, StackOverflow and some forums but I could not find a good summary and organized complete example. Here, I demonstrate my experiment of a full cycle of JavaScript / Java...

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You might have read my previous article about IntelliJ helping me get me back in Android development, Here is the output of that initiative. I am pleased to announce Android version of our popular iRectangles puzzle for iOS. You can download it here for Free. For people who might not know.. Rectangles is the next generation of puzzle game from the same inventor of Sudoku! The objective of the game is to create rectangles that fill the entire board. Each of the rectangle should correspond to the number of cells posted. You can select the cells to create a rectangle by simply dragging...

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One of nice part of Android is sqlite data access is very simple. You don't worry about the path to the sqlite database file and there are a couple of functions to make your file easier. Creating DB SQLiteDatabase db = openOrCreateDatabase("mydb",MODE_PRIVATE,null); This is a neat function which does open and create at the same time. You need to name your database (e.g. "mydb") and specify the mode to open. In this example, I'm opening the database as private mode that allows only your app to touch the file. Execute SQL db.execSQL("CREATE TABLE IF NOT EXISTS mydata (first_name,last_name,age)"); db.execSQL("INSERT...

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Every thing you do in android is an instance of Activity class. The back button (mostly implemented in hardware - now also on software - Example Galaxy Tab 10.1 and ICS) allows to unload current activity and go back to previous one. Lets say you are building a game and would like to pass data between your menu screen and the game screen. You show a bunch of options to the user in the menu screen and you have to pass the appropriate paramater to the Game Screen. Lets call our Activities GameActivity and MenuActivity Loading a different GameActivity from MenuActivity: First thing you need...

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I wanted to launch a simple app for Kindle Fire to test the Amazon market place for Android Apps. You can download the app here. I chose one of our simplest sounds apps for Christmas. Here is a screenshot of the same. The top buttons play the background music and the individual icons on the shelf play simple sounds. My first struggle was with the layout and making it work with various other android devices. I will write an another post for that. But with regards to playing the actual sound files there were problems also. There are 2 ways of playing sounds. 1. MediaPlayer...

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Eclipse sucks! Sorry to all Eclipse lovers, I just hate developing in Eclipse. Coming from Visual Studio and XCode, I just felt that eclipse was not responsive enough for Android development. I started my research for a good alternative. I even contemplated building everything manually using TextMate. But I think I finally found some good Android development tool that does not suck. Its IntelliJ IDEA and I use their free community edition. IDEA can open your eclipse projects and works seamlessly with Android emulator. Downloading: Download IntelliJ IDEA community edition from http://www.jetbrains.com...

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