A customizable picker view. You can provide data source asynchronously, not neccessary to get all data before the view show up.
It requires Xcode 9.0+ and Swift 4.0.
AsyncDataPicker is available on CocoaPods. Simply add the following line to your podfile:
pod 'AsyncDataPicker'AsyncDataPicker is very simple to use.
// Create a new AsyncDataPicker let picker = AsyncDataPicker(numberOfComponents: 2, title: "Color") //config DataProvider. You should picker.configDataProvider {[unowned self] (component, parentID, receiver) in if component == 0 { // load first Component Data from network or local. let firstComponentData = self.loadFirstComponentData() // all component data should adopt AsyncDataPickerItemProtocol receiver(firstComponentData) } else if component == 1 { // load second Component Data from network or local. let secondComponentData = self.loadSecondComponentData(firstID: parentID) receiver(secondComponentData) } } picker.dataSelectedAction {[unowned self] (item) in guard let selectedData = item[1] else { return } self.resultField.text = selectedData.pickerItemName } picker.show()AsyncDataPickerAttribute.normalTextColor = UIColor(red: 51/255.0, green: 51/255.0, blue: 51/255.0, alpha: 1.0) AsyncDataPickerAttribute.selectedTextColor = UIColor(red: 116/255.0, green: 191/255.0, blue: 58/255.0, alpha: 1.0) AsyncDataPickerAttribute.separatorColor = UIColor(red: 0, green: 0, blue: 0, alpha: 0.1) AsyncDataPickerAttribute.totalHeight = 341 AsyncDataPickerAttribute.titleHeight = 40 AsyncDataPickerAttribute.tabbarHeight = 40 AsyncDataPickerAttribute.defaultComponentTitle = "Select"AsyncDataPicker is released under the MIT license. See LICENSE for details.