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Swift Articles
Page 38 of 40
How to check Location Manager is running or not in iOS App?
To check any services related to location in ios with swift we can use the CLLocationManager.In this example we’ll see how to check if the location manager is running or not. We’ll do this with help of an sample project. So, create a new project. First we need to create a locationManager object, so in your view controller.var locationManager = CLLocationManager()Now, we first of all we need to check if the location services are enabled on the device or not. To check this we’ll useCLLocationManager.locationServicesEnabled() function, which returns a Boolean value showing whether the location service on device is active ...
Read MoreHow to resize an UIImageView using Swift?
To resize an image in iOS using swift we’ll make use of frame.Let’s see this with help of an example.Create an empty project and add an empty Image view.Create its outlet.Add an image to your project and assign the image to image view.Initially when we run the application, it looks something like this.Now, let’s add code to resize the image.override func viewWillLayoutSubviews() { let frame = CGRect(x: 10, y: 10, width: self.view.frame.width - 20, height: 300) self.imgView.frame = frame }We will run this code in our viewWillLayoutSubviews method. This is how it looks on the device when we ...
Read MoreHow do you hide the onscreen keyboard in iOS App?
To hide a keyboard on screen we need to make use of some internal functions that are predefined in the iOS SDK. The keyboard appears on screen when we are typing in a text Field or textView. We need to make use of internal function according to the text field.For example if the current text field is tfOne, we can hide the text field using the code below:tfOne.resignFirstResponder()This code will hide the keyboard when ever called, we may call this on an action for a button or for gesture recognizer.This method is good for limited textFields, but we need to ...
Read MoreHow to align views at the bottom of the screen in iOS
The recommended way and the modern way is to do using constraint. We will be using constraint to align the views at the bottom of the screen.Step 1: Open Xcode → New Projecr → Single View Application → Let’s name it “ViewAlignment”I’ll be using UIView, but you can use any UI component following the same steps.Step 2: Open Main.storyboard change the background color of ViewController (this we are doing for better understanding) and add UIView.Step 3: Add Constraints − Click on UIView → Add new constraints.While giving constraints we need to keep in mind 4 parameters, Xaxis, Yaxis, Height and ...
Read MoreHow to integrate a facebook login in swift for iOS App?
Social logins in applications have become a very common thing these days. Facebook login is one of them, in this article we’ll see how we can make use of facebook login, to access basic user information and login to the application.Implementing facebook login in an application is a series of multiple steps, out of which even a single step can not be skipped.The first step is to register as a developer on: https://developers.facebook.com/Once you sign up as a developer and complete the required steps to sign up, you will be taken to dashboard. Which at present looks like as shown ...
Read MoreAligning two buttons vertically in iOS
Auto Layout is one the most important element when it comes to designing an iOS Application. UI development has become a lot more versatile and easier using Auto Layout.For Aligning two buttons vertically we will be using Auto Layout.So let’s get started!Step 1: Open Xcode → New Projecr → Single View Application → Let’s name it “AlignButtons”Step 2: Open Main.storyboard and add two buttons, name them button 1 and button 2.Step 3: Select both the buttons and align them vertically using the Add New Alignment Constraint menu.Step 4: Select both the buttons tap on Add new constraints and set it ...
Read MoreWhile developing an iOS application you might have got a scenario where you require to send a text message and you would be baffling around with Why? How? And What?
In this tutorial we will be focussing on how to send text message from your iOS application in Swift, where we will be sending a text message from your user’s phone number. While we cannot do this directly without the content of your user’s but we can display a precomposed message for the user to send which user can modify later if he wants to.So let’s get started, We will be using “MFMessageComposeViewController” class object to display the standard message composition interface inside your application.Before we present the composition interface, we will populate the fields with the basic initial message ...
Read MoreHow to get device make and model on iOS?
When we talk about the device make, we refer to the Phone manufacturer (e.g. Apple, Samsung, Nokia and so on) and device model is generally the specific product such as iPhone, iPad/TAB etc.Any mobile devices will be categorized using make and model only.Now let’s understand how do I get device make and model in iOS?There are two ways to get make and model the first way is to directly open your iOS device, navigate to setting, tap on general and in the about section you can find the details of your iOS deviceThe second way is getting make and model ...
Read MoreHow to detect iOS device UDID, Name, Version, Model by programmatically?
Device UDID stands for Unique device identifier. Every iOS Device has UDID which is a sequence of 40 letters and numbers that is guaranteed to be specific to your device.Device name is generally a name which will find in the device Setting→ General→ About.iOS Version is the version on which your current iPhone runs, latest iOS version in 12.2iOS Model describes whether the iOS device which user is using is an iPhone/iPad.Now will see how to detect UDID, Name, Version and Model programatically.Open Xcode → New Project and add the below code in ViewController’s viewDidLoad method.override func viewDidLoad() { ...
Read MoreHow to check if Location Services are enabled in iOS App?
Location services as the name suggests gather the user information via GPS, Wifi and cell towers. Every iOS device has on board GPS, WiFi, cell tower location data and Bluetooth to determine the location of the iPhone or iPad. The user can enable or disable location services from the Settings app by toggling the Location Services switch in General.You should check the return value of locationServiceEnabled() method before starting location updates to determine whether the user has location services enabled for the current device.To check if Location Services are enabled in iOS app checkout the codeOpen Xcode → New Project ...
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