Learn how to take a disaster of nested stack views and untangle it into a great user interface.
Fix Stack View Disasters
Sliders as Knobs
You've seen other apps rotate views, but you may have no idea how to do it yourself. Let me show you one way to rotate views. We'll make a simple knob control you might be able to use in your apps. Download the example file. On the storyboard, I added an UIImageView of a knob …
Time Picker Part 2: Strings to Time Intervals
In the last tip, I showed you how to use UIPickerControllers to make a time interval input. What I didn't show you is how to output that. In this tip I'll show you how to read and convert data from a picker that has a separate delegate. If you download the exercise file, you'll have …
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CALayer Masks
UI doesn't have to look like a rectangle. You might want a different shape for your icon. You can do that with layer masks. Let's learn how to set them up. Download the example files. You'll find an app with two square buttons. If you head over to the assets, you see I have a …
Add an Animated Drawer
You've probably seen menus that pop out of the side of an app, but do you know how to make one? With the knowledge of some simple code you too can add these to your application using auto layout. If you take a look at the example file, I've set up a storyboard for you. …
Embed Table Views
Here's an app I started from the downloaded example file. It is a restaurant check with a total, but I have to press the Order button to see the details in a table view on the next view controller. That button is a waste of real estate, and it would be nice to see the …
Layout iPad Landscape and Multitasking Apps
Note:You can find a video of this tip here on LinkedIn Learning If there's one thing in auto layout that drives me nuts it is laying out for landscape different than portrait on an iPad. Phones are easy since the class sizes are different for portrait and landscape. For all phones, if I have a …
Continue reading "Layout iPad Landscape and Multitasking Apps"
Make Round Buttons and UIViews
In the good old days, Apple used a lot of rounded corner buttons. Many developers use several images to get the effect of round buttons. The CALayer of UIButton does have a feature for you to easily get rounded corners, and even circular buttons. Download the code from GitHub and open the starter file. It …
Animate With a Map Camera
In an earlier tip, I showed you how to make a map in iPad Playgrounds. Let's learn how to animate those maps, doing a flyover of Michigan avenue in Chicago from The former home of Chess Records at 2120 South Michigan Avenue (immortalized in the Rolling Stones song) and past Grant park to North Avenue …
Timer Accuracy in iOS
It's buried in the docs, so you might not know how inaccurate Timer objects can be if you are trying to show the time. Let's look at that inaccuracy and how to work around it. You'll find in the exercise file on GitHub a starter project where I've put together a demo app with three …
