4ZzZfm app in need of an update

The 4ZzZfm app was my first ever mobile app. It was then my first PhoneGap / Cordova app when I ported it.

It’s in desperate need of an update if for no other reason than that the iOS version does not support the iPhone 5 screen size.

I am thinking of trying to consolidate the codebases (currently it is a codebase for each of its two platforms) and maybe even expand it to cover other platforms beyond iOS and Android.

Questions I am going to have to look at over the next couple of weeks:

  • Does anyone listening to 4ZzZfm want to do so on WP8, BlackBerry or any of the other platforms supported by PhoneGap / Cordova?
  • Do I just use KendoUI and keep it closed source, or do I do a completely custom UI and open source the app? (note: I will only open source it if I can get a real program feed instead of scraping the website like I do now… the current code is embarrassment personified)
  • If I am supporting Android 2.3 (and I am sure I will), how will I handle the fact that it does not support html5 audio… and conversely, the media APIs I use for it are no good for streaming radio on iOS?
  • Are there other features that would be of use to 4ZzZfm?

I’ll try to keep updating the blog as I go with it (since I haven’t been using the blog for anything else lately with Pixfor’s own update on hold).

photoKandy Studios: Getting Started with Cordova-CLI

A Great intro to the Cordova Command Line Tooling

photokandy:

Cordova-CLI is doing some great things to make working with multiple platforms in one Cordova project easier. But installing with it can initially seem a little daunting if you’ve never played with it before, and so I thought it would help to write this guide up to help anyone else getting their…

Raised center TabBar button in Cordova / PhoneGap for iOS

A popular pattern in iOS lately (especially in apps with a focus on photo taking) is the raised / highlighted middle TabBar button. It’s easy enough to get a native TabBar in an iOS PhoneGap app using one of the two popular plugins (NativeControls and TabBar). There is even a great article on getting a raised middle TabBar button on iOS.

But not everyone using PhoneGap can comfortably turn that article into a modified TabBar plugin. There was even a recent thread on this topic in the PhoneGap Google Group recently.

Since I have done this in one of my apps, I thought I might post a quick outline on how to use the code in the iDevRecipes article above to get one of these buttons into one of the plugins above.

The Button Image

aperture-tab.png

This is the button I created for my app Pixfor. It’s basically just a green tinted screenshot of the middle third of a standard TabBar with an Aperture icon and a subtle shadow. You certainly don’t need to have a tinted gradient as well as your larger icon or whatever. That’s just a design decision. The great thing about how this works is that the touch goes straight through the added UIButton, so the highlight of the TabBar still happens so if your button image has transparency, it will show through nicely.

The button image is named aperture-tab.png and also has a corresponding aperture-tab@2x.png image for retina devices.

Note: these images (unlike the icons normally used in the TabBar plugins as icons) are added to the project through XCode as a resource, not just copied into the www folder with the other PhoneGap assets.

The JavaScript Code

For the JavaScript code, all you really need to do is create a TabBar item with an empty label and an empty icon.

For example, in NativeControls:

window.plugins.nativeControls.createTabBarItem("takepix", "", "", options);

and in TabBar:

window.plugins.tabBar.createItem("takepix", "", "", options);

The Objective-C Code

Pixfor happens to use the NativeControls plugin, but the code below should work in both.

They both have a method in their respective .m files that creates the TabBar (create in TabBar and createTabBar in NativeControls). *

Both these methods end with

[self.webView.superview addSubview:tabBar];

What we are going to do is add the following code directly after this line before the closing brace.

This code will add a custom UIButton using our image centered on our TabBar. Note the file name aperture-tab.png in the first line. The retina @2x version does not need to be explicitly referenced.

Pixfor's raised middle button

And there it is! Our special TabBar button.









* Line numbers only used for illustration. Please find the methods above in the plugin’s latest version.

First rejection

So I know I haven’t been posting here much, what can I say?

But I did feel like posting that I have had my first ever rejection experience with the Apple App Store.

An app I have been building for a client got rejected for collecting donations for charity — even though the app did not collect actual money, it merely allowed you to convert points earned in the app to a charitable donation.

The reviewer was very nice about it and offered some suggestions on how to comply with the rules in this area.

Here is where this post turns into a love letter to PhoneGap/Cordova and KendoUI.

The easiest way to comply was to have the actual charitable donation aspect happen on a web site and have the app kick the user out of the app to said web site to complete the donation. If the app had been native I would have had to re-write all my logic and create a web site appropriate for a mobile device, etc. However, since the app was a hybrid app using PhoneGap and KendoUI, all I had to do was copy some of the app into a standalone website using the same UI and the same JavaScript logic. Then I added a button from the website sending the user back to the app using URI schemes in iOS (the Android version of the app can stay how it was).

Like magic, I now have the charitable donations happening on a web site instead of the app, but with very little effort and it even looks the same aesthetically as the app!

The app has been resubmitted and our fingers are once again crossed.

As for the other problem (a lack of decent posts on this blog) I have been storing some up that I did not want to post until this app was finished. They should be coming very soon. I hope. Heh.

Pixfor is live.

The side project I have been working on for the last two months is finally live.

http://pixfor.me

Pixfor is, in many ways, the 21st century update on the idea of leaving disposable cameras on the tables at weddings. It is also a great deal more than that.

It’s a combination of an app (currently iOS only) and a SaaS web site. 

I have so much I haven’t had time to post about here and hope to finally get around to it now that Pixfor is launched (albeit very softly so far).

Been a while, but there is a reason

Finally submitted

It’s been almost two months since my last post, but that’s because I have been working hard on a new app. In fact, an entire new product.

I’ll be able to post more soon including some of the custom plugins I wrote for the app.

It’s a camera-based app at heart so I needed a custom camera overlay view as well as some changes to make the camera more responsive (there was a horrible delay after clicking the “use” button in the core PhoneGap Camera API).

I am hoping to find a way to make the camera functionality open source and abstract enough that it would be useful to someone else.

Until then, stay tuned? ;)

Announcing the Read it Later plugin for PhoneGap (soon also for Cordova)

One of the developers working on the new PhoneGap-based Wikipedia Mobile was having some annoying issues with the PhoneGap ShareKit plugin and decided he’d rather just put the Facebook and Twitter sharing in with their individual plugins. 

He was happy with the decision where Facebook and Twitter were concerned, but lamented that the decision would mean there would no longer be support for Read it Later (http://readitlaterlist.com).

I had a look at Read it Later’s API and iOS SDK and it looked fairly straight forward, so when he asked if I would like to write a plugin for it I took on the challenge.

Just two hours later I had a shiny new PhoneGap plugin!

https://github.com/devgeeks/ReadItLaterPlugin

If you wanna be as cool as Wikipedia, run over to GitHub and clone it into your app now! 

Installation

This plugin allows you to save a URL to Read It Later from your app.

Add the plugin much like any other:

  1. Add the ReadItLaterPlugin.h and VolumeSlider.m classes to your Plugins folder in Xcode (use “Create groups for any added folders”)
  2. Add the ReadItLaterPlugin.js file to your www folder
  3. Add the ReadItLaterPlugin.js to your html file. eg:<script type="text/javascript" charset="utf-8" src="ReadItLaterPlugin.js"></script>
  4. Add the plugin to the PhoneGap.plist under Plugins (key: “ReadItLaterPlugin” value: “ReadItLaterPlugin”)

Next, get the Read It Later API iPhone Library and add it to your project:

  1. Download the library from Read It Later
  2. Unzip the library and examples
  3. Copy these four files into your Xcode project under the Plugins folder (again, use “Create groups for any added folders”)
    • ReadItLaterLite.h
    • ReadItLaterLite.m
    • ReadItLaterFull.h
    • ReadItLaterFull.m
  4. Get an API Key from Read It Later for your app
  5. Add your shiny new API key to the top of the ReadItLaterLite.m file you copied in above
    • static NSString *apikey = @"<api key here>";
  6. Add the name of your app (as you entered it to get your API key above) as well
    • static NSString *nameOfYourApp = @"<name of your app here>";

Finally, call the saveToReadItLater() method using a success callback and an object containing a url and a title:

Example

function onDeviceReady()
{
    var readItLaterPlugin = window.plugins.readItLaterPlugin;
    readItLaterPlugin.saveToReadItLater(
        function(){
            console.log("Successfully saved to Read It Later");
        }, 
        { 
            url: "http://github.com/devgeeks", 
            title: "Devgeeks on GitHub"
        }
    );
}

How to keep your old version of PhoneGap for iOS when upgrading

The PhoneGap installer for iOS overwrites the old version when you run it. It puts itself in over the top of your previous version.

However, when you have shipped an app with PhoneGap and it’s happily in the App Store, the last thing you want to do is have to deal with changes in the PhoneGap API between versions if you need to make small maintenance tweaks down the track. 

Here’s what I do in this instance.

  1. Before upgrading PhoneGap (running the installer) I back up the previous version of the framework. I copy ‘/Users/Shared/PhoneGap’ to ‘/Users/Shared/PhoneGap-<version>’ (such as ‘/Users/Shared/PhoneGap-1.2’).
  2. Next I go into the projects that I want to keep running that version, and I delete the PhoneGap.framework from the project (remove reference only). 
  3. Then I add the framework from the copied versioned folder I made in step #1. Select the target in Xcode, choose the “Build Phases” tab, open the “Link Binary With Libraries” section and click the + and choose “Add Other…”, browse to where you backed up your old PhoneGap.framework and add it in.
  4. Upgrade PhoneGap to latest version.

You now not only have a back up you can keep old projects maintained against, but you have a version you can use if the new PhoneGap changes something you want to use or breaks a plugin you need for your project. In fact, inside the ‘/Users/Shared/PhoneGap-1.2/Frameworks/PhoneGap.framework/www’ folder is the version-specific PhoneGap iOS JavaScript file if you need to downgrade a project.