Archive for the Category: android

Reverse-engineering the KaraFun file format. Part 4, the encryption

So far the files we have seen had no encryption. However some of our users pointed out there are some files which are encrypted. While the encrypted KFN files were still analyzed and dumped properly, the resulted files were unreadable. Of course the player need to support those files too, so this is something which we need […]

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Reverse-engineering the KaraFun file format. Part 3, the Song.ini file

This is quite simple. We look at the song.ini file and it is obvious immediately where the text and the timing information is as those are the only lines with enough numbers.

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Reverse-engineering the KaraFun file format. Part 2, the directory

In the first part we found out the header format, and that it does not provide us with the directory location. However we know there must be a directory, as the KaraFun application must know where exactly in a file the files are stored, and how large are they. At minimum there should be the directory […]

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Reverse-engineering the KaraFun file format. Part 1, the header

Several of our users have expressed disappointment that our Ulduzsoft Karaoke Player for Android does not support the popular KaraFun Karaoke format. This format seem to be very popular in some countries, and unfortunately there seem to be no player on Android capable of playing those files. Even the KaraFun Android application does not play those files […]

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Ulduzsoft Karaoke Player for Android is out of Beta now!

Today we released Ulduzsoft Karaoke Player for Android version 1.12. It has been a beta for close to nine months, and it is labor time. The application seem to be well-received, with a competitive functionality and the most bugs seem to be fixed. We had a long discussion about the app monetization and decided to […]

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Parsing ID3v2 tags in the MP3 files

This simple tag parser is very useful when you just need to get the basic information about the MP3 files, such as the title and the artist. Of course it could be extended to extract more information if necessary. Apache license.

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ColorPreference class for Android

There are many Android color pickers used for preferences, but they all seem to be unnecessary complex for an ordinary user. If all you need is to let the user choose a single color from a set, you can use this simple class which is conveniently integrated into the Preferences scheme.       

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FontPreference dialog for Android

FontPreference on Android emulator

Using the FontManager class it is possible to implement a simple and nice font selection dialog on Android platform. This is also one of the very few ListView implementation which implements the custom ListView by properly subclassing the DialogPreference the same way ListPreference does. It may also be interesting for anyone who is looking for […]

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Enumerating the fonts on Android platform

Some Android applications may find it useful to obtain the full list of the fonts installed on the device together with the font names.They could be used to choose the best matching font for specific purposes, or to let the user choose the font. Unfortunately the Android platform provides no such API in Java. It is […]

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Toddler Memory Game version 1.3 is released!

Version 1.3 of the Toddler Memory Game Android application has been released. This is a free, no-ads memory trainer for kids. Supports Android 1.3 and higher.

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