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Even though Xcode provides a template for building a tabbed application, we often want to start from scratch when building a tabbed app. So let’s see how it’s done. Start Xcode, select “Create a new Xcode project,” and click Next. Choose the Empty Application template, click Next, and name the project TabBar. Select options as [...]
Suppose if we want to populate the large amount of static data in iOS application then we generally use text view object to represent that data. Text view object is feasible for some situations. But if we want the different font sizes and different font colors to different paragraphs then text view is not at [...]
There are some situations in iOS applications like animating bottom tool bar with the keyboard. That is, we need to animate the tool bar on top of keyboard when showing and hiding the keyboard. This can be done by using keyboard notifications in iOS. In this tutorial I will explain how to present the key [...]
There are two ways to change the orientation of controls when the device orientation changes. The simplest way is to use the controls found in the Size Inspector (shown here) to set behavior for individual controls. If these settings do not allow the control that you need, the only other option is to change the [...]
In this tutorial I will explain the most powerful feature of UITableView, called multiple selection of rows. Create a new project in Xcode using single window application template and name it as TableViewMultiSelection. Before proceeding further we need to add a navigation controller to the AppDelegate and make ViewController as its root view. We can [...]
A very common feature for almost all iOS applications is UITableView and its data source and delegate protocol. In this tutorial I will explain how to edit table view rows with little animations. i.e I will discuss how to delete and insert a row within the table view. Open Xcode and proceed with the single [...]
In iOS, UITabBarController works as an access point for different view controllers and its views. The tab bar contains set of tabs corresponding to the view controllers that we need to populate. Each tab of a tab bar controller is associated with a custom view controller. When the user selects a specific tab, the tab [...]
In iOS, most of the applications need the feature of capturing the picture either from camera or from the existing photo library. Further, apps require to upload or save it in application bundle for future use. In this tutorial I will explain one of the most useful feature of iOS called UIImagePickerController and its delegate [...]
Most of the iPhone applications require the images to be downloaded from the web server. Depending upon the web service (API) provided, there are some methods to download the image. In this tutorial we will explain how to download the image from a remote server using NSURLConnection Delegates. Later we will explain how to save [...]
In this application we will see how to Current time display in the application. So let see how it will worked. Step 1: Open the Xcode, Create a new project using View Base application. Give the application “TimeApplication”. Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore [...]
In this application we will see how to AlertView display after button pressed in iPhone. So let see how it will worked. Step 1: Open the Xcode, Create a new project using View Base application. Give the application “AlertView”. Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can [...]
Xcode offers many templates from which to choose when creating a new application. Sometimes, though, we want a bit more control over the details of an app than these templates can provide; for this reason, Xcode also offers an Empty application template. In this blog, we’ll see how to use the Empty template to build [...]
Delegation between UIViewControllers is a common pattern. We might have a class graph in which there is a master view controller (that communicates with the model and all the other view controllers). Each main view in the application will have its own view controller. It is more efficient to have these view controllers delegate up [...]
The introduction of storyboards in iOS 5 has allowed for the rapid development of application prototypes. In this blog, we’ll look at setting up a segue between two view controllers such that when an event occurs in the first view controller, the second is displayed. We’ll also look at the technique of setting properties from [...]