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Learn how to view the image in the iOS interface

We will learn how to display a ui image on iOS with an example. We also teach you how to use the image view in iOS to display images in the Swift programming language using the Xcode editor.

View iOS UI image

In iOS, the Image view is used to display images in iOS apps, the Image view automatically resizes the images to fit the current view size.

Using iOS Image Viewer, we can display a single image or animated sequence of images with a clear or opaque background based on our needs. If we use iOS Image view to display images in applications such as the following

C: \ Users \ mohammad \ Desktop \ ios-imageview-sample-image-in-xcode.png

We can use Image View in our iOS apps by adding a UIImageView class reference.

Now we will see with an example how to use the UI image view in iOS in our iOS applications.

Create an iOS image viewer app in Swift

To create a new project in Xcode on iOS, open Xcode from the application folder list. After opening Xcode, the welcome window will open as shown below. In the Welcome window, click on the second option, “Create a new Xcode Project”; Click (create a new Xcode Project) or select the File New Project path.

C: \ Users \ mohammad \ Desktop \ open-xcode-to-create-new-ios-app-using-xcode (1) .png

After selecting “Create a new Xcode project”, a new window will open in which we must select our template.

The new Xcode window includes several built-in application templates to implement the usual type of iOS apps, such as page-based apps, tab-based apps, games, spreadsheet apps, and more. These templates have a preset interface and source code files. .

For example, the image view in iOS, we have the most basic pattern of the application, which is “app only display”; We will use. To select this item, go to the iOS section on the left, select the application from the select section, and in the main part of the window that opens, select “single view application” and click on the next button, as shown below. .

After clicking Next, we will see a window like the one below, in this case we have to mention the project name and other details for our program.

Product name: “Image View in iOS”

The name we enter in the Product Name section is used for the project and application.

Organization name: “Tutlane”

You can enter the name of the organization or your name in this field; Of course you can leave that section blank.

Organization Identifier): “com.developersocociation)”

If you do not have an enterprise ID, enter com.example.

Bundle Identifier

This section is automatically generated based on the phrases we entered in the product name and organization ID.

Language: “Swift”

Select the language type “Swift” because we want to develop applications using swift.

Universal (devices): “Universal”

Select the Devices option as Universal This means that this app is for all Apple devices; If you need to run the app for iPad only, you can select the iPad option to restrict your app to running only on iPad devices.

Use core Data: Not selected

This option is used for database operations. Select this option if you are doing any database-related operations in your application, otherwise do not select this option.

Include Unit Test: Not selected

If you need unit tests for your application, select this option otherwise leave it unselected.

Includes UI tests: not selected

Select this option if you need UI tests for your application, otherwise do not select it.

After completing the options, click the Next button as shown below.

C: \ Users \ mohammad \ Desktop \ ios-image-view-create-new-project-in-xcode.png

When we click the Next button; A new window will open in which you must use the location where you want the new project to be saved; Let’s choose. Once you have selected the new project storage location; As shown below; Click the Create button.

C: \ Users \ mohammad \ Desktop \ save-xcode-new-project-in-application-folder-in-ios-swift (1) .png

After clicking the Create button, Xcode opens and creates a new project. In our project, Main.storyboard and ViewController.swift are the main files used to design the user interface and maintain the source code.

Main.storyboard – which is the visual interface editor and this file is used to design the application user interface.

ViewController.swift – which contains the source code of our application and we use this file to write any code related to our application.

Now select the Main.storyboard file in the project, until Xcode opens the visual interface editor as shown below.

C: \ Users \ mohammad \ Desktop \ ios-imageview-storyboard-file-in-xcode.png

Now select the ViewController.Swift file in your project, which looks like the following figure.

C: \ Users \ mohammad \ Desktop \ ios-imageview-viewcontroller-in-xcode.png

Then download a simple image from the internet and drag it into your project similar to what you see below.

C: \ Users \ mohammad \ Desktop \ ios-imageview-add-images-to-project-in-xcode.png

Add ioS UI controls to the view in Swift for ui image

We are now adding controls to our application for that library of available objects. The object library appears at the bottom right of Xcode. If you did not find the object library, as shown below; Click the button that is the third button in the library selection bar on the left. (On the other hand, you can select the View Utilities Show Object Library path).

As we have suggested; Our interface is the Main.storyboard file, so open the Main.storyboard file. Now look for the Image View in the Object Library in the Filter box, and then look like the one below; Drag and drop the Image View into the ViewController on the Main.storyboard.

C: \ Users \ mohammad \ Desktop \ ios-imageview-add-controls-storyboard-in-xcode.png

Now run and check the output of the program. To run the program; Select the required emulator (here we have selected iPhone Six Plus) and then similar to the one below; Click the Play button in the upper left corner of the Xcode toolbar.

IOS image viewer output in Swift

In the following; You can see the result of running the image view app on iOS. If you look closely, you will see that we see an image that we have added to our application.

C: \ Users \ mohammad \ Desktop \ ios-imageview-application-example-result-output.png

This way we can create an image display program in Swift to suit our needs; Show pictures in the app.