CFMobile Example – Record and playback audio using ColdFusion Splendor

In this post I am going to show how easy it is to record audio and play it back in a mobile application using ColdFusion Splendor. If you haven’t already, you can download it from Adobe Labs.

I have tried to keep the application simple. There are two buttons, Record and Play. When you click Record button, the recording starts and the Stop button is displayed. Speak into the phone microphone to record your voice. When done, click Stop button. You can play back the audio by clicking Play button. You can also stop playback any time by clicking Stop button.

Here are the screen shots –

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Continue reading “CFMobile Example – Record and playback audio using ColdFusion Splendor”

ColdFusion Thunder – It's all new IDE

Though ColdFusion Thunder is the next version of ColdFusion Builder (the last version was 2.0.1), it is like a new IDE because it’s a major re-write. Past versions of ColdFusion Builder were built on top of Aptana. I had noted some of the challenges in implementing ColdFusion Builder a couple of years back, when CFB 2.0.1 was released.

ColdFusion Builder (till version 2.0.1) used a very old version of Aptana. Aptana later re-wrote and improved their IDE and released it as Aptana Studio 3.  The integration points in Aptana Studio were changed to such an extent that integrating CFB in it would have meant re-writing it. So we decided not to base ColdFusion Thunder on Aptana and implemented many features that Aptana had contributed earlier – most notably editors for HTML, JavaScript, CSS and XML. This also meant CFML editor had to be re-written because it was based on Aptana APIs to integrate HTML, CSS and JS editors in it.

The task was huge and we, in the ColdFusion team, had been working very hard during the past two years to – first build all (or most) the features of CFB 2.0.1 in Thunder, and then to add some more features. If you have used ColdFusion Builder in the past, then you will see great performance improvements in all the editors in Thunder. Specifically you should see difference when editing large files. The memory footprint is also improved.

Here are some of the new/improved features in Thunder –  Continue reading “ColdFusion Thunder – It's all new IDE”

CFMobile Example – Taking picture and uploading to ColdFusion server

In this post I am going to show you how to create a mobile application using ColdFusion Splendor that can take a picture and upload the picture to CF server. This application uses Camera and File APIs.

The application is very simple – it has two buttons, one to take picture and the other one to set URL where pictures are to be uploaded. You can set URL of the server before taking a picture or after, just before it is to be uploaded. Once the URL is set, it is stored in the localStorage and will be remembered.  There is a messages div where the application displays messages about different operations it is performing.

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CFMobile Example – Using Geolocation APIs in ColdFusion Splendor

I was going to cover a use-case of taking picture in a mobile app and uploading it to ColdFusion Server in this post, but I found some issues in packaging an app that used Geolocation APIs when helping someone and thought that I would cover geolocation first.

This sample application is very simple – it gets your current location and displays a marker at that location on the Goole Map APIs. Here is how the application looks – Continue reading “CFMobile Example – Using Geolocation APIs in ColdFusion Splendor”

Creating database mobile application with ColdFusion Splendor

In my previous post, Simplify Mobile Application Development Using ColdFusion, I posted a video that showed how easy it is to create mobile application with CFMobile features of ColdFusion Splendor (Server) and ColdFusion Thunder (IDE). In that video I created a simple app called ‘Simple Expense Tracker’. But the code was not optimal, because the main purpose of the video was to show you features of CFMoible. I also mentioned that I will post a better example of the same app.

So In this post I will show you how to create a database application, where user interface code is separated from the data access code. I will also use JQuery for DOM access and Bootstrap for UI. Continue reading “Creating database mobile application with ColdFusion Splendor”

Simplify Mobile Application Development Using ColdFusion

Public beta of next versions of ColdFusion Server (code named Splendor) and ColdFusion Builder (code named Thunder) were released yesterday on Adobe Labs. I have been closely involved with implementation of some of the features in both Splendor and Thunder, specifically Mobile features in Splendor and editors in Thunder.

Splendor and Thunder together provide a complete workflow to create HTML5 Mobile applications – you can easily develop, test, debug and package applications for mobile. I have created a short video to explain this workflow with a simple example, and this video is available on adobecoldfusion channel on YouTube. Continue reading “Simplify Mobile Application Development Using ColdFusion”

Record and Playback Drawing in HTML5 Canvas – Part II

A reader of my blog post De/Serializing Recordings in Recordable HTML5 Canvas had asked me how to change stroke color and size when recording. I told him that this could be done by adding actions, like setColor and setStrokeSize. For more information about how the recordable canvas was implemented, see my blog post Record and Playback Drawing in HTML5 Canvas . I have updated the example with following new features –

  • Setting stroke color and size – both for drawing and recording
  • Pausing and resuming recording. You may want to pause recording if, for example, you do not want to record time delay when you select stroke color/size. Duration of time that the recording is paused is skipped when playing back the recording.

Here is the demo of how the new features work. Select a color by clicking on any color box on the right side of the canvas. Default selection is black. Currently selected color is displayed in a little bigger box with rounded corner. To select stroke size, I have added a few predefined circles of different sizes on the right side. Currently selected stroke size is displayed in black.

Continue reading “Record and Playback Drawing in HTML5 Canvas – Part II”

My blog report for 2013

WordPress has created a nice summary of statistics of my blog for the year 2013. The report is available at

Here are some of the highlights –

  • I wrote 15 blog posts in 2013, taking the total posts to 47. So I wrote a lot less posts in 2013 compared to 2012, the year I started this blog.
  • There were 83000 views of the blog in 2013
  • Many of the posts viewed this year were actually written last year. The most popular post was  Passing data between pages in JQuery Mobile followed by  Calling Objective-C code from JavaScript in iOS applications
  • Other than search engines, top two referring sites were and
  • Visitors came from 168 countries. Most from USA, followed by India and Germany

-Ram Kulkarni

Framework for interacting with embedded WebView in iOS application

Last year around the same time I had written a post about Calling Objective-C code from JavaScript in iOS applications . I created a simple framework for it and described how to use it in that post.

Recently I was working on an application that required WebView to be embedded in the same View Controller along with other native iOS controls. I decided to use the above framework, but knew that  my ViewController class will have to extend WebViewController class of the framework. Though I could have done that, I thought separating the functionality of UIWebViewDelegate from the WebViewController would be a better design. So I replaced WebViewController with WebViewDelegate which implements UIWebViewDelegate protocol. I also removed getInitialPageName method from WebViewInterface.h . So here are the files in the new framework – Continue reading “Framework for interacting with embedded WebView in iOS application”

PhoneGap 3 – My initial experience

PhoneGap 3.0 was released this year in July, but I hadn’t given it a try till a few days back.     I had to start a new PhoneGap project using the latest version (PhoneGap 3.3).
There have been significant changes in the way PhoneGap is installed and project created since PhoneGap 3.0. These changes have been very well documented in the official PhoneGap documentation and various blogs. So installing and PhoneGap 3.3 and creating the first project was a smooth experience.

The problem for me started after the bare minimum project was created. One of the important changes in PhoneGap 3.0 is that every device feature API is a plugin (e.g. contacts, camera etc.) and none of the device APIs are automatically included when you create a project using CLI. You have to add then after you created the project. I was aware of this change and added plugins that I needed using CLI. I then expected to have these APIs available in the application (I created iOS and Android Apps). But they were not. Continue reading “PhoneGap 3 – My initial experience”