A simple yet customizable horizontal and vertical picker view

Mind Studios

Last update: Sep 26, 2022

Related tags

PickerView WheelPicker

Overview

WheelPicker

A simple yet customizable horizontal and vertical picker view

Features

Usage

Import WheelPicker module to your ViewController class

import WheelPicker

Instantiate and set delegate and dataSource as you know. Configure WheelPicker if need

picker.dataSource = self
picker.delegate = self

2.1. Configure WheelPicker if need

picker.interitemSpacing = 25.0
picker.fisheyeFactor = 0.001
picker.style = .style3D
picker.isMaskDisabled = false
picker.scrollDirection = .vertical

picker.textColor = UIColor.blue.withAlphaComponent(0.5)
picker.highlightedTextColor = UIColor.blue

then specify the number of items using WheelPicker methods

func numberOfItems(_ wheelPicker: WheelPicker) -> Int

Specify contents to be shown. You can use either texts or images

optional func titleFor(_ wheelPicker: WheelPicker, _ index: Int) -> String
optional func imageFor(_ wheelPicker: WheelPicker, _ index: Int) -> UIImage

func wheelPicker(_ wheelPicker: WheelPicker, configureLabel label: UILabel, at index: Int) {
   
   label.textColor = UIColor.black.withAlphaComponent(0.5)
   label.highlightedTextColor = UIColor.black
   label.backgroundColor = UIColor.init(hue: CGFloat(index)/CGFloat(flags.count) , saturation: 1.0, brightness: 1.0, alpha: 1.0)
}

Using both texts and images are currently not supported. When you implement both, titleFor(_ wheelPicker: WheelPicker, at index: Int) will be called and the other won't.
You currently cannot specify image sizes; WheelPicker shows the original image in its original size. Resize your images in advance if you need.

Optional: You can use WheelPicker method to observe selection changes

func wheelPicker(_ wheelPicker: WheelPicker, didSelectItemAt index: Int)

Installation with CocoaPods

To install via CocoaPods add this lines to your Podfile. You need CocoaPods v. 1.1.0 or higher

$ gem install cocoapods

Podfile

To integrate WheelPicker into your Xcode project using CocoaPods, specify it in your Podfile:

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '9.0'
use_frameworks!

target 'TargetName' do
  pod 'WheelPicker', '~> 1.0'
end

Then, run the following command:

$ pod install

License

WheelPicker is available under the MIT license. See the LICENSE file for more info.

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Comments

Swift 4 NSFontAttributeName error

The updated code in Swift needs to look like this:

let size =  string.size(withAttributes: [NSAttributedStringKey.font: font])
        let highlightedSize = string.size(withAttributes: [NSAttributedStringKey.font: highlightedFont])

Currently it's failing due to Swift 4 API changes.

opened by Jeehut 0

How to proportionally display the images inside the container?

I am trying to figure out how to make sure the images are container proportionally within the container. Currently all the images over-exceed the container and it is a mess. Any tips?

opened by yashjain27 0
Add support for SwiftPM-based dependency managers

This adds a very basic SwiftPM manifest file to be compatible with any dependency manager that uses Apples official way of specifying libraries.

Note that I created this PR because I'm currently developing a dependency manager called Accio which is intended to fix several issues with Carthage and fill the gap between now and the time, when Apple adds official support for SwiftPM into Xcode. Merging this will also prepare for that bright future.

opened by Jeehut 0
If item at Index 0 is selected or scrolled to, it is not highlighted.

When a wheelpicker set to current index of 0 is displayed, the item/title at that number is not highlighted. if the index is anything other than 0, then highlighting works correctly.

opened by ghost 0