Hide UINavigation Bar in Push Segue Animation

On February 6, 2014, in iPhone iPad Object-C, by James Liu

Last time, we talk about how to create a Push segue animation without UINavigation controller. The problem I want to solve is that I want to use horizontal sliding effect as ViewController transition without using UINavigation. However, there is no horizontal sliding effect in model segue. Therefore, I have to use custom style segue and define a custom segue. With the custom style segue, we can easily switch ViewControllers without any pain.

In this IOS tutorial, I will show you a new way to apply Push segue by using UINavigationController, but hide the navigation bar. This approach is more clean, nice and easy to understand. It is also very easy for you to use in your own project. Because we are using a normal UINavigator, all view transition are implemented by UINavigationController functions including pushViewController and popViewControllerAnimated.

My working environment is Mac OS X Mavericks with Xcode 5.0.2. Deployment target is 7.0. Target device is iPhone. You can also use this source code in your iPad project.
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iPhone Rss Reader App IOS Tutorial 4: Show Rss Feed in UIWebView

On August 20, 2013, in iPhone iPad Object-C, by James Liu

This is the forth iphone programming tutorial in the iPhone Rss Reader app example. In this iphone source code example, I will improve the xml parser to get more data from rss feed xml, and store them in a new value object class. When user clicks the rss title in the table view, I will use push segue to switch to a UIWebView, which will show the rss content inside.

This tutorial will update the storyboard to add a new UIViewController, and all data in this UIWebView example is generated by the previous iphone example source code. Hence, I recommend you to review the whole example tutorials as well.

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Create Animation in IOS Apps With PNG Sequence Files

On May 1, 2013, in Flash Flex AIR, iPhone iPad Object-C, by James Liu

There are thousands of questions about how to use flash animation in IOS apps because the iphone apps and ipad apps don’t support the flash animation files, or swf format file. Now, I have a solution for it. We can convert the flash animation into png files and load the png sequence in iphone, ipad apps to simulate the animation.

In Adobe Flash CS6, there are two new features to export MovieClip animation to a set of png sequence files or png sprite sheet. In this IOS programming tutorial, I will show you an example about how to export the MovieClip to png sequence files and animate png files in IOS apps.
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Create Push Segue Animation Without UINavigation Controller

On May 1, 2013, in iPhone iPad Object-C, by James Liu

Latest Update: A better way to implement push segue animation without UINavigation bar
Apple provides three styles of Storyboard Segue, push segue, modal segue and custom segue. Push segue is a predefined segue with a horizontal sliding animation. To make it works, we have to integrate our view controller with UINavigationController. Sometimes, we don’t want to have a UINavigation Bar, but want to use push segue between viewcontroller transition. We may find that it won’t work. Alternatively, we can use modal segue instead. In modal style, there are four transitions including Cover Vertical, Flip Horizontal, Cross Dissolve and Partial Curl. However, there is no horizontal sliding animation effect. Hence, we have to use custom style segue. Here is a video to show you how we can create a horizontal sliding animation transition by custom segue.


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iPhone Rss Reader App For Twitter

On April 12, 2013, in iPhone iPad Object-C, by James Liu

In the post, iPhone Rss Reader App IOS Tutorial, I gave an example to show you how to create a RSS Reader App for iPhone. In that tutorial, I am using the data source from WordPress powered website. One of my friend, Mohamed, wonder if it can be modified to get RSS Feed from Twitter. I think it is necessary to create this iPhone App tutorial to show how to migrate the iPhone RSS Read app example to read the twitter rss feed.
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