January 2015 - helpMeCodeSwift.com

Generating UIButtons from a loop

This is a very useful technique and it’s pretty straight forward. Let’s say we have an array of items or heroes and we want to dynamically create buttons that will do something linked to the hero/item selected. One example is if you have an array of saved games and you want to generate buttons to […]

Setting up backgrounds for UIView

There are different ways of setting up backgrounds in Swift, depending on the object, method, background type etc. We will go through some of these here. Setting up a background image for a UIView:

self.view.backgroundColor = UIColor(patternImage: UIImage(named: "myImage.png"))

1	self.view.backgroundColor = UIColor(patternImage: UIImage(named: "myImage.png"))

Replace “myImage.png” with the name of your image. Note: Make sure you add your images to the Bundle first. To […]

Contacts App / Inventory with Archiving 2.0

Hi, all Here is the updated version of the Contacts app with archiving. It will now let you save and load multiple contacts. I am just going to list some of the new things added. Here are the previous and next buttons on the Load View screen:

@IBAction func previousPressed(sender: AnyObject) { // PREVIOUS BUTTON
        
        if index == 0 {
            index = inventory.itemArray.count - 1
            
        } else {
        index--
        }
        println("index: (index)")
        indexLabel.text = "(index + 1)"
        loadItem(inventory.itemArray[index])
        changePlaceHolderText()
        
    }

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@IBAction func previousPressed(sender: AnyObject) { // PREVIOUS BUTTON

if index == 0 {

index = inventory.itemArray.count - 1

} else {

index--

}

println("index: (index)")

indexLabel.text = "(index + 1)"

loadItem(inventory.itemArray[index])

changePlaceHolderText()

}

@IBAction func nextPressed(sender: AnyObject) { // NEXT BUTTON
        
        if index >= inventory.itemArray.count - 1 {
            index = 0
        } else {
            index++
        }
        println("index: (index)")
        indexLabel.text = "(index + 1)"
        loadItem(inventory.itemArray[index])
        
        changePlaceHolderText()
        
    }

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@IBAction func nextPressed(sender: AnyObject) { // NEXT BUTTON

if index >= inventory.itemArray.count - 1 {

index = 0

} else {

index++

}

println("index: (index)")

indexLabel.text = "(index + 1)"

loadItem(inventory.itemArray[index])

changePlaceHolderText()

}

Here are the […]

Multiplications Table app

Ok, this app will be just an example of how to create things programmatically, without using the Auto Layout or any of the other fancy things within XCode. It’s a very simple app, but to me it was a very good experience learning to build and troubleshoot things directly in code. The app will look […]