Found 2041 Articles for Mobile Development

How can I set an icon for my iOS application?

Kumar Varma
Updated on 30-Jul-2019 22:30:26

131 Views

Every app needs a beautiful and memorable icon that attracts attention in the App Store and stands out on the Home screen. Your icon is the first opportunity to communicate, at a glance, your app’s purpose. It also appears throughout the system, such as in Settings and search results.Here we will be seeing how we can set icon for iOS Application but before that we should make sure and understand that Every app must supply small icons for use on the Home screen and throughout the system once your app is installed, as well as a larger icon for display ... Read More

How do I display the current date and time in an iOS application?

Rama Giri
Updated on 30-Jul-2019 22:30:26

217 Views

Playing with date and time is very important in any programming language, it becomes more important if you’re developing mobile application.Numerous application such as weather, forecast, gaming and so on uses date and time. In this we will be seeing how we can get the current date and time.To get the current date and time we will be using timeIntervalSince1970 instance property, you can read about it https://developer.apple.com/documentation/foundation/nsdate/1407504-timeintervalsince1970So copy the below code in your viewDidLoad method and run the application, we will be printing the current date and time, and based on requirement we can print the same in UILabel ... Read More

How to set background color of a View in iOS App?

Kumar Varma
Updated on 30-Jul-2019 22:30:26

2K+ Views

Views are the fundamental building blocks of your app's user interface, and the  UIView class defines the behaviors that are common to all views. A view object renders content within its bounds rectangle and handles any interactions with that content. The  UIView class is a concrete class that you can instantiate and use to display a fixed background color.It is very important to have complete understanding of UIView as they are the main object user sees.Here we will be seeing how to change the background color of view programmatically and via storyboard.First let us see using storyboard, Open Main.storyboard and ... Read More

How to Set opacity for View in iOS?

Rama Giri
Updated on 30-Jul-2019 22:30:26

1K+ Views

View’s Alpha value is a floating-point number in the range 0.0 to 1.0, where 0.0 represents totally transparent and 1.0 represents totally opaque. Changing the value of this property updates the alpha value of the current view only.You can simply adjust alpha value based on the opacity you want.Write the following line in you viewDidLoad methodview.backgroundColor = UIColor(white: 1, alpha: 0.5)Run the application, the view’s opacity you can see is 50%

How to detect a long press in iOS?

Kumar Varma
Updated on 30-Jul-2019 22:30:26

774 Views

Long-press (also known as press-and-hold) gestures detect one or more fingers touching the screen for an extended period of time. You configure the minimum duration required to recognize the press and the number of times the fingers must be touching the screen. (The gesture recognizer is triggered only by the duration of the touches and not by the force associated with them.) You might use a long-press gesture to initiate an action on the object being pressed. For example, you might use it to display a context-sensitive menu.You can read more about it  https://developer.apple.com/documentation/uikit/touches_presses_and_gestures/handling_uikit_gestures/handling_long-press_gesturesHere we will be designing a simple ... Read More

How to show Alert Dialog in iOS?

Rama Giri
Updated on 30-Jul-2019 22:30:26

1K+ Views

Knowing how to play with Alert is very important if you’re designing any iOS Application. Here we will be focusing on how to show Alert using UIAlertController.To read more about UIAlertController refer −  https://developer.apple.com/documentation/uikit/uialertcontrollerIn this, we will be creating a new project where we will have a button, on tapping that button we will show alert with custom message.Step 1 − Open Xcode → New Projecr → Single View Application → Let’s name it “Alert”Step 2 − Open Main.storyboard and add a button and name it tap. Create @IBAction of that button in ViewController.swit and name the same as tap.There’s ... Read More

How to make dotted/dashed line in iOS?

karthikeya Boyini
Updated on 30-Jul-2019 22:30:26

3K+ Views

Knowing how to make dotted or dashed line is very important. You might develop a page where you ask user to enter fields, there you can represent the same with dotted line. Dotted line can also be used to highlight certain things in an application.The most important use is in the navigation application. While designing the navigation application you must know how to draw the path and you might end up using dotted lines.Let us see how we can achieve this functionality in iOS.Step 1 − Open Xcode → New Project → Single View Application → Let’s name it “DottedLine”Step ... Read More

How to add shadow on text swift?

Sharon Christine
Updated on 30-Jul-2019 22:30:26

655 Views

If you’re developing a game or a kids application or an application where you want to make attractive user interface you must know how to add shadow on text. This will not only makes the text attractive but also it will also enhance the user experience.Here we will see how we can add shadow on text.Step 1 − Open Xcode → New Project → Single View Application → Let’s name it “ShadowText”Step 2 − Add label in Main.storyboard and create @IBOutlet of the label and name it lblHelloWorld.Step 3 − Add the below code in your ViewController.swift, add the complete ... Read More

How to answer incoming call programmatically in iOS?

karthikeya Boyini
Updated on 30-Jul-2019 22:30:26

345 Views

Apple iPhone SDK doesn’t allow this feature. If you really wish to achieve it you can use some private api such as CTCallAnswer(call);This will result in your app store rejection.

How to create transparent Status Bar and Navigation Bar in iOS?

Sharon Christine
Updated on 30-Jul-2019 22:30:26

1K+ Views

You might have come across many application where the screen extends to complete screen i.e transparent Status Bar and transparent navigation bar.Here we will be seeing how to create an application where the you’ll be having transparent status and navigation bar.So let’s get startedStep 1 − Open Xcode → New Project → Single View Application → Let’s name it “TransparentViews”Step 2 − Embed the View Controller in Navigation Controller. Add Image View and shown and add image.Step 3 − Run the application without adding any piece of code for making status and navigation bar transparent.The screen looks like belowStep 4 ... Read More

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