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Add convenience UIPickerView rx extensions example
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...RxExample/Examples/UIPickerViewExample/CustomPickerViewAdapterExampleViewController.swift
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| // | ||
| // CustomPickerViewAdapterExampleViewController.swift | ||
| // RxExample | ||
| // | ||
| // Created by Sergey Shulga on 12/07/2017. | ||
| // Copyright © 2017 Krunoslav Zaher. All rights reserved. | ||
| // | ||
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| import UIKit | ||
| #if !RX_NO_MODULE | ||
| import RxSwift | ||
| import RxCocoa | ||
| #endif | ||
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| final class CustomPickerViewAdapterExampleViewController: ViewController { | ||
| @IBOutlet weak var pickerView1: UIPickerView! | ||
| @IBOutlet weak var pickerView2: UIPickerView! | ||
| @IBOutlet weak var pickerView3: UIPickerView! | ||
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| override func viewDidLoad() { | ||
| super.viewDidLoad() | ||
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| Observable.just([[1, 2, 3], [5, 8, 13], [21, 34]]) | ||
| .bind(to: pickerView1.rx.items(adapter: CustomStringPickerViewAdapter())) | ||
| .disposed(by: disposeBag) | ||
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| Observable.just([[1, 2, 3], [5, 8, 13], [21, 34]]) | ||
| .bind(to: pickerView2.rx.items(adapter: CustomAttributedStringPickerViewAdapter())) | ||
| .disposed(by: disposeBag) | ||
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| Observable.just([[1, 2, 3], [5, 8, 13], [21, 34]]) | ||
| .bind(to: pickerView3.rx.items(adapter: PickerViewViewAdapter())) | ||
| .disposed(by: disposeBag) | ||
| } | ||
| } | ||
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| final class CustomStringPickerViewAdapter | ||
| : NSObject | ||
| , UIPickerViewDataSource | ||
| , UIPickerViewDelegate | ||
| , RxPickerViewDataSourceType { | ||
| typealias Element = [[CustomStringConvertible]] | ||
| private var items: [[CustomStringConvertible]] = [] | ||
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| func numberOfComponents(in pickerView: UIPickerView) -> Int { | ||
| return items.count | ||
| } | ||
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| func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { | ||
| return items[component].count | ||
| } | ||
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| func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? { | ||
| return items[component][row].description | ||
| } | ||
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| func pickerView(_ pickerView: UIPickerView, observedEvent: Event<Element>) { | ||
| UIBindingObserver(UIElement: self) { (adapter, items) in | ||
| adapter.items = items | ||
| pickerView.reloadAllComponents() | ||
| }.on(observedEvent) | ||
| } | ||
| } | ||
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| final class CustomAttributedStringPickerViewAdapter | ||
| : NSObject | ||
| , UIPickerViewDataSource | ||
| , UIPickerViewDelegate | ||
| , RxPickerViewDataSourceType { | ||
| typealias Element = [[CustomStringConvertible]] | ||
| private var items: [[CustomStringConvertible]] = [] | ||
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| func numberOfComponents(in pickerView: UIPickerView) -> Int { | ||
| return items.count | ||
| } | ||
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| func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { | ||
| return items[component].count | ||
| } | ||
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| func pickerView(_ pickerView: UIPickerView, attributedTitleForRow row: Int, forComponent component: Int) -> NSAttributedString? { | ||
| return NSAttributedString(string: items[component][row].description, | ||
| attributes: [ | ||
| NSForegroundColorAttributeName: UIColor.cyan, | ||
| NSUnderlineStyleAttributeName: NSUnderlineStyle.styleDouble.rawValue | ||
| ]) | ||
| } | ||
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| func pickerView(_ pickerView: UIPickerView, observedEvent: Event<Element>) { | ||
| UIBindingObserver(UIElement: self) { (adapter, items) in | ||
| adapter.items = items | ||
| pickerView.reloadAllComponents() | ||
| }.on(observedEvent) | ||
| } | ||
| } | ||
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| final class PickerViewViewAdapter | ||
| : NSObject | ||
| , UIPickerViewDataSource | ||
| , UIPickerViewDelegate | ||
| , RxPickerViewDataSourceType { | ||
| typealias Element = [[CustomStringConvertible]] | ||
| private var items: [[CustomStringConvertible]] = [] | ||
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| func numberOfComponents(in pickerView: UIPickerView) -> Int { | ||
| return items.count | ||
| } | ||
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| func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { | ||
| return items[component].count | ||
| } | ||
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| func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView { | ||
| let label = UILabel() | ||
| label.text = items[component][row].description | ||
| label.textColor = UIColor.orange | ||
| label.font = UIFont.preferredFont(forTextStyle: .headline) | ||
| label.textAlignment = .center | ||
| return label | ||
| } | ||
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| func pickerView(_ pickerView: UIPickerView, observedEvent: Event<Element>) { | ||
| UIBindingObserver(UIElement: self) { (adapter, items) in | ||
| adapter.items = items | ||
| pickerView.reloadAllComponents() | ||
| }.on(observedEvent) | ||
| } | ||
| } | ||
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