Singsys blog: Mobile Apps

Android OS 4.4 KitKat images leaked online, reveal new features

There is a lot of Buzz regarding Google’s next version of Android OS Kitkat in the tech community. According to report, images of Android latest OS version Kitkat have been leaked online which shows new features.
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Use BaseAdapter to maintain the state of the checkbox in list-view when scrolling it in android

The getView() method of the class extending the BaseAdapter holds the state of the currently displayed view which is invalidated when scrolling the listview. So, in order to avoid this problem, proceed in the following manner. (more…)

Apple fixes lock screen Bug with iOS 7.0.2

Soon after the release of latest iOS 7.0.1 , a major lock screen bug was discovered by several users that could allow someone to bypass the lock screen passcode and give anyone direct access to applications and user data including social accounts access, chats, emails, photos, add, edit and delete photos etc. (more…)

Apple’s iOS 7 update is live to users with new look and features

Apple’s iOS 7 update is now live to users. Users can update it free of cost. If you have an iPhone 4 or higher, iPad 2 or above, iPad mini or 5th generation iPod touch, you can now enjoy the cool features of new OS and can start updating and downloading new apps in iOS 7.

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Performing Simple Animations using NSTimer class

Here is a simple tip on how we can perform simple animation on objects in Xcode using the NSTimer class to create timers that call methods at regular intervals.

 

Using the NSTimer class –

 

There are many ways to perform simple animations. One of the easiest ways to perform animation is to use the NSTimer class. The NSTimer class creates timer objects, which enable you to call a method at a regular time interval. It also allows you to update the position of an image at regular time intervals. (more…)