Custom tab bar item swift


  • 3 Ways to Add Images Icons for Tab Bar Items in SwiftUI
  • How to build an iOS messaging app: Part 3, Tab Bar Controller
  • How to create a custom Tab Bar in SwiftUI
  • Introducing SwiftUI TabView and Working with Tab Bar Customization
  • UITabBarController – Know how to customize the tab bar controller
  • Using UITabBarAppearance for Tab Bar Changes in iOS 13
  • 3 Ways to Add Images Icons for Tab Bar Items in SwiftUI

    Swift Intruduction Apple encourages developers to design outstanding user experiences. And the icon plays an important role. The same is true in TabView , there are three ways for developers to add an icon for each tab bar item appropriately in SwiftUI. System Fonts for Apple Platforms Apple platform provides a set of over 2, consistent, highly configurable symbols developers can use in your app.

    All these symbols are built-in and available in a wide range of weights and scales to help developers create adaptable designs. For example, developers could use these symbols like the code below. Standard-resolution and High-resolution Custom Images Alternatively, developers can use custom images instead of system fonts symbols for tab bar items.

    Developers should prepare 3 images icons for each tab bar item. The three images icons includes a standard resolution image icon 1x , and two higher resolution image icon 2x and 3x. A general workflow to create such three images icons is like below. Firstly, create the 3x at 75w 75h pixels maximum: x 96 and save it as icon 3x. Next, resize it to 50w 50h pixels maximum: 96 x 64 and save it as icon 2x. Finally, resize it to 25w 25h pixels maximum: 48 x 32 and save it as icon. Import 3 Images Icons Now all you need is to select those 3 images at your finder and drag them to your image assets and use them with Image.

    In this case, custom image icons do not auto resized if you do not follow the above steps. You can do this with Adobe Illustrator , Sketch , and many other vector image editing tools. Conclusion In the summary, you have learned three ways about adding image icons for each tab bar item.

    Notice sizes mentioned above, all work well for correct sizes of images, otherwise, images display unexpectedly. Right Now, open your Xcode project and optimize images for your tab bar items! Welcome to comment on this blog below and share this blog to your social media or any other place. Hope it helps and thanks!

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    How to build an iOS messaging app: Part 3, Tab Bar Controller

    Leave a Comment One of the more perplexing parts of using tab bar controllers is customizing tabs. If you understand some of the properties of an image, You can do some major customization.

    Download the example file. You may see Question marks in the image like this: If you do, Click on Assets to make sure the assets are there and then head back to the storyboard. Zoom out to see all three.

    Two have writing in them and the third is a solid square. In the properties for that tab bar controller, check Is Initial view controller. Set your simulator to iPhone X and run. This app is a reference guide to the three ways you can use Icons: square, circle or background.

    That text is too small to see well, So I made a larger version on each tab as an image view. Stop the app. Images in the tab bar are by default template images. A template image is a monochrome image using the tint color. Any solid areas are rendered solid while transparent areas are rendered the background. Only the alpha channel of an image is used for the color.

    Go to the SquareViewController. The image in the image view is an image with transparent ares for the text. In viewDidLoad, I can change the rendering mode of the image by changing the rendering mode property of the image like this: imageView.

    You can use rendering mode to change to a tab bar image as an. Tab bar items are stored within the view controller in the tabBarItem property, so under the line we just typed, add this: tabBarItem. Stop the app and go to the storyboard.

    Under that is Landscape, a compact version of the tab bar for landscape on compact height devices, where I put Circle Compact Template for the image. These set the image when the tab is not selected. Circle is an original rendered as a template, so we get a solid circle.

    This is true of our Square too. When we ran the app the square was selected as the initial controller, but it was still in a template rendering mode. Change the code in the square to this: tabBarItem. Run again. This time the square is yellow with writing, click the circle and it is red. The background show s a gradient. The non selected tabs are the tint color.

    This was a simple example. You can use this trick in a variety of ways, from having a single selection image for all your tabs to having color icon tabs for all your images. You can also find a video demo of this tip on LinkedIn learning.

    How to create a custom Tab Bar in SwiftUI

    The same is true in TabViewthere are three ways for developers to add an icon for each tab bar item appropriately in SwiftUI.

    Introducing SwiftUI TabView and Working with Tab Bar Customization

    System Fonts for Apple Platforms Apple platform provides a set of over 2, consistent, highly configurable symbols developers can use in your app. All these symbols are built-in and available in a wide range of weights and scales to help developers create adaptable designs.

    For example, developers could use these symbols like the code below. Standard-resolution and High-resolution Custom Images Alternatively, developers can use custom images instead of system fonts symbols for tab bar items. Developers should prepare 3 images icons for each tab bar item.

    The three images icons includes a standard resolution image icon 1xand two higher resolution image icon 2x and 3x.

    UITabBarController – Know how to customize the tab bar controller

    A general workflow to create such three images icons is like below. Firstly, create the 3x at 75w 75h pixels maximum: x 96 and save it as icon 3x. Next, resize it to 50w 50h pixels maximum: 96 x 64 and save it as icon 2x. Finally, resize it to 25w 25h pixels maximum: 48 x 32 and save it as icon. Click the empty view controller and delete it. Now search for tab bar controller in the bottom right panel and drag it to the storyboard.

    The scene consists of a tab bar controller and two content views that are linked by segues. When you drag it to the storyboard, an image like the one given below would be seen.

    Using UITabBarAppearance for Tab Bar Changes in iOS 13

    The Tab Bar Controller consists of two bar items at the bottom. One for each of the content views. Build the project now. Note: The storyboard is missing the arrow at the beginning of the scene that was there before. Click the tab bar controller and go to the Attributes option in the utilities panel.

    The Tab Bar Controller comes pre-configured with two additional view controllers, one for each tab. The relationship between the Tab Bar Controller and the views is shown by a segue. Following image shows how this is done. The above image shows how a few shifting of elements in the storyboard gives it a complete new look.


    Custom tab bar item swift