In this blog, we're diving into the details of setting up and using iCloud's NSUbiquitousKeyValueStore to help persist settings in the new universal app version of Sudoku Grab. We'll look at how to enable cloud syncing for your app, handle updates from iCloud, and persist changes, allowing us to keep user settings consistent across devices. Note, this storage method is meant for small amounts of data with particular quotas - so keep an eye on your usage. For hands-on experience, there's a simple demo project on GitHub ready for you to experiment with!
Currently, I am revitalizing Sudoku Grab, my first app ever, published in 2009. The plan involves updating the code, upgrading to ARC, simplifying the menu system, accommodating iOS7, and supporting 4-inch display sizes. Future updates may include iCloud syncing features for universal access to puzzles. This endeavor also gives me an excuse to switch to an iPhone5s!
Just got an email from Apple, claiming that my app 'Sudoku Grab' infringes on intellectual property rights of Nikoli.Co.Ltd. So, as a precaution, I've taken Sudoku Grab off the shelves in Japan.
In this blog, I explain the process behind my Sudoku Grab app, a solution that uses basic image processing techniques to recognize Sudoku puzzles. This is done by locating the puzzle in an image, turning it back into a square form, segmenting it to find potential numbers, and lastly, recognizing those numbers. This involves simple thresholding techniques, blob extraction algorithm, perspective transform, and a Neural Network for Optical Character Recognition (OCR) to recognize digits from the photograph. I conclude by mentioning the potential for multiple enhancements to this process.
I'm thrilled to announce that Sudoku Grab has reached 25000 downloads! As a token of gratitude, the app will be available for free until the 25th June. A huge thank you to everyone who has purchased the app and for all the valuable feedback.
Another month on the App Store, fellas! Even though our little app met some bumps here and there, it still managed to get quite the spotlight in Europe's 'What we're playing' section, grossing up to 200 daily sales in the UK, 300 globally. Took a hit when we dropped from the featured list, but that was expected, right? Thankfully, other countries picked up the slack! Brought in a new icon and broke into the US market, making a splash in their 'New and Noteworthy' section. Seems like being on the front page or featured list really makes a difference! Despite...