Grote update voor waterpolo Apps op iPhone en iPad nu beschikbaar

Met ruim 1.500 gebruikers op de iPhone en ruim 400 op de iPad, zijn beide apps inmiddels omarmt door een grote groep waterpolo-liefhebbers. Sinds de 1.0 versie welke in December 2010 gelanceerd werd, is er al een hoop veranderd. Continu heb ik geprobeerd de wensen van de gebruikers te vervullen met nieuwe functies en andere verzoeken. Zo ook vandaag: ik ben blij om te kunnen mededelen dat sinds vandaag de 3.0 versie te downloaden is uit de App Store! Deze update is uiteraard gratis voor bestaande gebruikers. In het onderstaande artikelen laat ik een aantal van de grote veranderingen zien.

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New iPad’s Retina display: how to reduce image file size?

Even till the day of the Keynote about the new iPad, I couldn’t believe the rumours telling the new iPad will have a Retina Display. I thought it was a too big challenge for the Apple engineers to make a resolution of 1536 x 2048 pixels was workable for a mobile device. I was waiting for Apple coming with some smart solution to up the screens resolution, without doubling the size in both directions. Apple actually surprised me by releasing the new iPad with this ridiculous big screen. As a user, this was off course fantastic news! As a developer, just doubling the size of my artwork wasn’t enough.

When I started working on my first app update to support the Retina display, I found out the hard way that just doubling the size of my images and including them as ‘@2x’ images blew the size of my app completely out of proportion. Mosaic Wallpaper Designer currently takes 5.5MB of your space to download it from the App Store. After I have included my reworked images, it grew to around 45MB! Even though this is an universal app and most of the UI is already in Retina resolution to support the iPhone 4 and 4S.

As a coder, I had to search for some tricks to reduce file size of my graphics to make the the file size workable again. Because I don’t think I’m the only one facing this kind of problems, I would like to share some of my experiences with you. For people with a graphical background, this may be pretty obvious, but this article is more targeted at Independent Developers without much of a graphical knowledge. If you have any additions to this article, add a comment below or contact me!
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Now available: Mosaic Wallpaper Designer!

From now on, my new universal iOS app Mosaic Wallpaper Designer is available for download in App Stores worldwide! Check out the information and trailer below to get an impression, or download the app directly from the App Store

With Mosaic Wallpaper Designer, you can design unique wallpapers, using your own pictures. Add your pictures to a variety of grids and scale/move them using multitouch gestures. You can also change the style of the borders to you likings. After you’ve seen a fullscreen preview of your result, you can save the designed wallpaper to your device and share it with your friends via Facebook or Twitter. The workflow of the app is designed to be very easy to use. Your device is personalized in no-time!

Soon available: Mosaic Wallpaper Designer!


Today I will announce a new product, which will go live in the App Store in 2 – 3 weeks from now. With Mosaic Wallpaper Designer you can design your own personal wallpapers, using your own pictures. Add multiple pictures to the grid and resize using multitouch gestures. Because the app is universal, you can design wallpapers for you iPhone, iPod Touch or iPad with one single application! Check out the trailer at the end of this post for a preview!

Do you want to be notified when Mosaic Wallpaper Designer is available in the App Store? Follow @ErwinZwartApps on Twitter or fill in the following form to recieve an email notification:

[video] First impression on iOS5

After being very excited after Apple’s keynote, I finally had the chance to install iOS5 on my iPad and iPhone. Here is a short video for a first impression. Later on, I will make provide a lot more details. I first have to use iOS5 some more to give a good impression and opinion about the new mobile operating system and it takes some time before everything is synced up the first time over WiFi. Stay tuned!