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[已解决]swift实现左右联动选择

iOS crifan 881浏览 0评论

要实现这种:

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swift picker lib

zhangao0086/DKImagePickerController: It’s a Facebook style Image Picker Controller by Swift.

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ios uipickerview github

skywinder/ActionSheetPicker-3.0: Quickly reproduce the dropdown UIPickerView / ActionSheet functionality on iOS.

CooperRS/RMPickerViewController: This is an iOS control for selecting something using UIPickerView in a UIActionSheet like fashion

Akkyie/AKPickerView: A simple yet customizable horizontal picker view.

saiwu-bigkoo/Android-PickerView: 仿iOS的PickerView控件,有时间选择和选项选择并支持一二三级联动效果

filipealva/PickerView: A customizable alternative to UIPickerView in Swift.

madjid/MMPickerView: An easy to use and customizable PickerView for your iOS app.

去试试:

skywinder/ActionSheetPicker-3.0: Quickly reproduce the dropdown UIPickerView / ActionSheet functionality on iOS.

简单的两列,可以用:

                    ActionSheetMultipleStringPicker.showPickerWithTitle(“客户来源”, rows: [

                        [“11”, “12”, “13”],

                        [“21”, “22”, “23”]

                        ], initialSelection: [0, 0], doneBlock: { picker, selectedIndex, selectedValue in

                            gLog.verbose(“doneBlock picker=\(picker), selectedIndex=\(selectedIndex), selectedValue=\(selectedValue)”)

                        }, cancelBlock: { (picker) in

                            gLog.verbose(“cancelBlock picker=\(picker)”)

                        }, origin: self.view

                    )

效果:

但是,不是左右联动显示的,是独立的。

然后去下源码,看里面的demo:

然后其中初始化设置中就有了

notesToDisplayForKey

scaleNames

感觉是:

想要联动的话,可以用:

ActionSheetPickerCustomPicker

搜:

ActionSheetCustomPicker usage

然后已经可以通过代码:

import CoreActionSheetPicker

class CustomerDetailViewController: UIViewController,  ActionSheetCustomPickerDelegate {

ActionSheetCustomPicker.showPickerWithTitle(“客户来源”, delegate: self, showCancelButton: true, origin: self.view, initialSelections: [0, 0])

    /*************************************************************************

     * ActionSheetCustomPickerDelegate Functions

     *************************************************************************/

    var selectedFirstLevelSourceIndex:Int = 0

    func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {

        gLog.verbose(“pickerView=\(pickerView)”)

        return 2

    }

    func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {

        gLog.verbose(“pickerView=\(pickerView), component=\(component)”)

        var rowNum = 0

        switch component {

        case 0:

            rowNum = gCurUserItem.customerSourceList.count

        case 1:

            gLog.verbose(“selectedFirstLevelSourceIndex=\(selectedFirstLevelSourceIndex)”)

            rowNum = gCurUserItem.customerSourceList[selectedFirstLevelSourceIndex].subSourceList.count

        default:

            break

        }

        gLog.verbose(“rowNum=\(rowNum)”)

        return rowNum

    }

    func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {

        gLog.verbose(“pickerView=\(pickerView), row=\(row), component=\(component)”)

        var curTitle = “”

        switch component {

        case 0:

            curTitle = gCurUserItem.customerSourceList[row].text

        case 1:

            let firstLevelRowIndex = pickerView.selectedRowInComponent(0)

            curTitle = gCurUserItem.customerSourceList[selectedFirstLevelSourceIndex].subSourceList[firstLevelRowIndex].text

        default:

            break

        }

        gLog.verbose(“curTitle=\(curTitle)”)

        return curTitle

    }

    func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {

        gLog.verbose(“pickerView=\(pickerView), row=\(row), component=\(component)”)

        return

    }

}

实现最基本的效果了:

注意:

还有其他几个初始化的函数,供需要的选择合适的去使用:

   /** Designated init */

    public init!(title: String!, delegate: ActionSheetCustomPickerDelegate!, showCancelButton: Bool, origin: AnyObject!)

    public init!(title: String!, delegate: ActionSheetCustomPickerDelegate!, showCancelButton: Bool, origin: AnyObject!, initialSelections: [AnyObject]!)

    /** Convenience class method for creating an launched */

    public class func showPickerWithTitle(title: String!, delegate: ActionSheetCustomPickerDelegate!, showCancelButton: Bool, origin: AnyObject!) -> Self!

    public class func showPickerWithTitle(title: String!, delegate: ActionSheetCustomPickerDelegate!, showCancelButton: Bool, origin: AnyObject!, initialSelections: [AnyObject]!) -> Self!

但是要去解决:

[已解决]ActionSheetPicker的PickerView中实现左右联动选择:选择左边一行后整个右边列表内容都更新

期间还遇到问题:

[已解决]Xcode项目编译出错:Command failed due to signal Segmentation fault 11

然后还需要去解决字体有点大的问题:

[已解决]ActionSheetPicker中PickerView中的字体太大

但是还是有个问题:

默认选择传入了:

initialSelections: [0, 0]

时,结果:

显示界面的时候,竟然:

对于左边选择row 0时,右边本身没有内容

结果却显示了,属于其他row的值:

即:

默认选择传入了:

左边选择row=0

右边选择row=0

而右边的内容,其实是根据左边的选择而决定的

左边选择了0,右边其实是空的

所以应该显示:

左边:传统/新媒体

右边:空的

但是此处显示了:

左边:传统/新媒体

右边:苏州2016车展

但是实际上:

根据对应的代码逻辑:

    func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {

        gLog.verbose(“pickerView=\(pickerView), component=\(component)”)

        var rowNum = 0

        switch component {

        case CustomerSourceTopLevelColumnIndex:

            rowNum = gCurUserItem.customerSourceList.count

        case CustomerSourceSecondLevelColumnIndex:

            gLog.verbose(“topLevelSelectedIndex=\(topLevelSelectedIndex)”)

            rowNum = gCurUserItem.customerSourceList[topLevelSelectedIndex].subSourceList.count

        default:

            break

        }

        gLog.verbose(“rowNum=\(rowNum)”)

        return rowNum

    }

    func pickerView(pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusingView view: UIView?) -> UIView {

        gLog.verbose(“pickerView=\(pickerView), row=\(row), component=\(component)”)

        var curTitle = “”

        switch component {

        case CustomerSourceTopLevelColumnIndex:

            curTitle = gCurUserItem.customerSourceList[row].text

        case CustomerSourceSecondLevelColumnIndex:

            if row < gCurUserItem.customerSourceList[topLevelSelectedIndex].subSourceList.count {

                curTitle = gCurUserItem.customerSourceList[topLevelSelectedIndex].subSourceList[row].text

            }

        default:

            break

        }

        gLog.verbose(“curTitle=\(curTitle)”)

        let curTitleLabel = UILabel()

        curTitleLabel.text = curTitle

        curTitleLabel.textAlignment = .Center

        curTitleLabel.font = RightTextFieldTextFont

        curTitleLabel.textColor = RightTextFieldTextColor

        gLog.verbose(“curTitleLabel=\(curTitleLabel)”)

        return curTitleLabel

    }

应该是没有值的。

但是此处却选择了,另外一个row:活动

的内容:

苏州2016车展

上海2016车展

然后此处,改为:

ActionSheetCustomPicker.showPickerWithTitle(“客户来源”, delegate: self, showCancelButton: true, origin: self.view, initialSelections: [0, -1])

结果会崩溃:

再改为:

                    ActionSheetCustomPicker.showPickerWithTitle(“客户来源”, delegate: self, showCancelButton: true, origin: self.view, initialSelections: [0])

结果和:

[0,0]是类似的

如果之前某次点击保存后,这次重新显示,还是会选中之前的,右边的内容。

算了,此处只能保证:

尽量传入正确的index了。

最后用代码:

    /*************************************************************************

     * Customer Source Functions

     *************************************************************************/

    // ActionSheetCustomPickerDelegate Functions

    var topLevelSelectedIndex:Int = 0

    var CustomerSourceTopLevelColumnIndex:Int = 0

    var CustomerSourceSecondLevelColumnIndex:Int = 1

    func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {

        gLog.verbose(“pickerView=\(pickerView)”)

        return 2

    }

    func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {

        gLog.verbose(“pickerView=\(pickerView), component=\(component)”)

        var rowNum = 0

        switch component {

        case CustomerSourceTopLevelColumnIndex:

            rowNum = gCurUserItem.customerSourceList.count

        case CustomerSourceSecondLevelColumnIndex:

            gLog.verbose(“topLevelSelectedIndex=\(topLevelSelectedIndex)”)

            rowNum = gCurUserItem.customerSourceList[topLevelSelectedIndex].subSourceList.count

        default:

            break

        }

        gLog.verbose(“rowNum=\(rowNum)”)

        return rowNum

    }

    func pickerView(pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusingView view: UIView?) -> UIView {

        gLog.verbose(“pickerView=\(pickerView), row=\(row), component=\(component)”)

        var curTitle = “”

        switch component {

        case CustomerSourceTopLevelColumnIndex:

            curTitle = gCurUserItem.customerSourceList[row].text

        case CustomerSourceSecondLevelColumnIndex:

            if row < gCurUserItem.customerSourceList[topLevelSelectedIndex].subSourceList.count {

                curTitle = gCurUserItem.customerSourceList[topLevelSelectedIndex].subSourceList[row].text

            }

        default:

            break

        }

        gLog.verbose(“curTitle=\(curTitle)”)

        let curTitleLabel = UILabel()

        curTitleLabel.text = curTitle

        curTitleLabel.textAlignment = .Center

        curTitleLabel.font = RightTextFieldTextFont

        curTitleLabel.textColor = RightTextFieldTextColor

        gLog.verbose(“curTitleLabel=\(curTitleLabel)”)

        return curTitleLabel

    }

    func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {

        gLog.verbose(“pickerView=\(pickerView), row=\(row), component=\(component)”)

        if component == CustomerSourceTopLevelColumnIndex {

            if row != topLevelSelectedIndex {

                gLog.verbose(“topLevelSelectedIndex=\(topLevelSelectedIndex), row=\(row)”)

                topLevelSelectedIndex = row

                pickerView.reloadComponent(CustomerSourceSecondLevelColumnIndex)

            }

        }

        return

    }

    func actionSheetPickerDidSucceed(actionSheetPicker: AbstractActionSheetPicker!, origin: AnyObject!) {

        gLog.verbose(“actionSheetPicker=\(actionSheetPicker), origin=\(origin)”)

        let customerSourcePickerView = actionSheetPicker.pickerView as! UIPickerView

        gLog.verbose(“customerSourcePickerView=\(customerSourcePickerView)”)

        let topLevelCurIdx = customerSourcePickerView.selectedRowInComponent(CustomerSourceTopLevelColumnIndex)

        let secondLevelCurIdx = customerSourcePickerView.selectedRowInComponent(CustomerSourceSecondLevelColumnIndex)

        gLog.verbose(“topLevelCurIdx=\(topLevelCurIdx), secondLevelCurIdx=\(secondLevelCurIdx)”)

        saveSelectedCustomerSourceIndex(topLevelCurIdx, secondLevelIndex: secondLevelCurIdx)

    }

    func actionSheetPickerDidCancel(actionSheetPicker: AbstractActionSheetPicker!, origin: AnyObject!) {

        gLog.verbose(“actionSheetPicker=\(actionSheetPicker), origin=\(origin)”)

    }

    func getCustomerSourceIndexFromId() -> (topLevelIdx:Int, secondLevelIdx:Int) {

        gLog.verbose(“topComeFromId=\(self.curCustomerItem.topComeFromId), topComeFromName=\(self.curCustomerItem.topComeFromName), sencondComefromId=\(self.curCustomerItem.sencondComefromId), sencondComefromName=\(self.curCustomerItem.sencondComefromName)”)

        var curTopLevelIdx = InvalidSelectIndex

        //var curSecondLevelIdx = InvalidSelectIndex

        var curSecondLevelIdx = 0

        var secondLevelCustomerSource = CustomerSource()

        for (topIdx, eachTopLevelSource) in gCurUserItem.customerSourceList.enumerate() {

            gLog.verbose(“topIdx=\(topIdx), eachTopLevelSource=\(eachTopLevelSource)”)

            if !eachTopLevelSource.id.isEmpty {

                gLog.verbose(“self.curCustomerItem.topComeFromId=\(self.curCustomerItem.topComeFromId), eachTopLevelSource.id=\(eachTopLevelSource.id)”)

                if String(self.curCustomerItem.topComeFromId) == eachTopLevelSource.id {

                    curTopLevelIdx = topIdx

                    secondLevelCustomerSource = eachTopLevelSource

                    gLog.verbose(“curTopLevelIdx=\(curTopLevelIdx), secondLevelCustomerSource=\(secondLevelCustomerSource)”)

                    break

                }

            }

        }

        //found second level index

        if curTopLevelIdx != InvalidSelectIndex {

            for (secondIdx, eachSecondLevelSource) in secondLevelCustomerSource.subSourceList.enumerate() {

                gLog.verbose(“secondIdx=\(secondIdx), eachSecondLevelSource=\(eachSecondLevelSource)”)

                if !eachSecondLevelSource.id.isEmpty {

                    gLog.verbose(“self.curCustomerItem.topComeFromId=\(self.curCustomerItem.topComeFromId), eachSecondLevelSource.id=\(eachSecondLevelSource.id)”)

                    if String(self.curCustomerItem.sencondComefromId) == eachSecondLevelSource.id {

                        curSecondLevelIdx = secondIdx

                        gLog.verbose(“curSecondLevelIdx=\(curSecondLevelIdx)”)

                        break

                    }

                }

            }

        }

        gLog.verbose(“curTopLevelIdx=\(curTopLevelIdx), curSecondLevelIdx=\(curSecondLevelIdx)”)

        return (curTopLevelIdx, curSecondLevelIdx)

    }

    func getCustomerIdNameFromIndex(topLevelIndex:Int, secondLevelIndex:Int) {

        gLog.verbose(“topLevelIndex=\(topLevelIndex), secondLevelIndex=\(secondLevelIndex)”)

        if topLevelIndex < gCurUserItem.customerSourceList.count {

            let curTopLevelCustomerSource = gCurUserItem.customerSourceList[topLevelIndex]

            gLog.verbose(“curTopLevelCustomerSource=\(curTopLevelCustomerSource)”)

            if let idInt = Int(curTopLevelCustomerSource.id) {

                self.curCustomerItem.topComeFromId = idInt

            }

            self.curCustomerItem.topComeFromName = curTopLevelCustomerSource.text

            gLog.verbose(“topComeFromId=\(self.curCustomerItem.topComeFromId), topComeFromName=\(self.curCustomerItem.topComeFromName)”)

            if secondLevelIndex < curTopLevelCustomerSource.subSourceList.count {

                let curSecondLevelCustomerSource = curTopLevelCustomerSource.subSourceList[secondLevelIndex]

                gLog.verbose(“curSecondLevelCustomerSource=\(curSecondLevelCustomerSource)”)

                if let secondIdInt = Int(curSecondLevelCustomerSource.id) {

                    self.curCustomerItem.sencondComefromId = secondIdInt

                }

                self.curCustomerItem.sencondComefromName = curSecondLevelCustomerSource.text

            } else {

                self.curCustomerItem.sencondComefromId = 0

                self.curCustomerItem.sencondComefromName = “”

            }

            gLog.verbose(“sencondComefromId=\(self.curCustomerItem.sencondComefromId), sencondComefromName=\(self.curCustomerItem.sencondComefromName)”)

        }

    }

    func genCustomerSourceStr() -> String {

        var sourceStr = “”

        if !self.curCustomerItem.topComeFromName.isEmpty {

            sourceStr = self.curCustomerItem.topComeFromName

            if !self.curCustomerItem.sencondComefromName.isEmpty {

                sourceStr += “-\(self.curCustomerItem.sencondComefromName)”

            }

        }

        gLog.verbose(“topComeFromName=\(self.curCustomerItem.topComeFromName), sencondComefromName=\(self.curCustomerItem.sencondComefromName) -> sourceStr=\(sourceStr)”)

        return sourceStr

    }

    func updateCustomerSourceCell() {

        gLog.verbose(“”)

        dispatchMain_async({

            self.customerSourceCell.rightTextfield.text = self.genCustomerSourceStr()

        })

    }

    func saveSelectedCustomerSourceIndex(topLevelIndex:Int, secondLevelIndex:Int) {

        gLog.verbose(“topLevelIndex=\(topLevelIndex), secondLevelIndex=\(secondLevelIndex)”)

        getCustomerIdNameFromIndex(topLevelIndex, secondLevelIndex: secondLevelIndex)

        updateCustomerSourceCell()

    }

    func showCustomerSourceSelectView() {

        gLog.verbose(“”)

        let curSourceIndex = getCustomerSourceIndexFromId()

        gLog.verbose(“curSourceIndex=\(curSourceIndex)”)

        let customerSourcePicker:ActionSheetCustomPicker

        if curSourceIndex.topLevelIdx != InvalidSelectIndex {

//            ActionSheetCustomPicker.showPickerWithTitle(“客户来源”, delegate: self, showCancelButton: true, origin: self.view, initialSelections: [curSourceIndex.topLevelIdx, curSourceIndex.secondLevelIdx])

            customerSourcePicker = ActionSheetCustomPicker(title: “客户来源”, delegate: self, showCancelButton: true, origin: self.view, initialSelections: [curSourceIndex.topLevelIdx, curSourceIndex.secondLevelIdx])

        } else {

//            ActionSheetCustomPicker.showPickerWithTitle(“客户来源”, delegate: self, showCancelButton: true, origin: self.view)

            customerSourcePicker = ActionSheetCustomPicker(title: “客户来源”, delegate: self, showCancelButton: true, origin: self.view)

        }

        let cancelButton = UIBarButtonItem(title: “取消”, style: UIBarButtonItemStyle.Plain, target: nil, action: nil)

        customerSourcePicker.setCancelButton(cancelButton)

        let doneButton = UIBarButtonItem(title: “确定”, style: UIBarButtonItemStyle.Plain, target: nil, action: nil)

        customerSourcePicker.setDoneButton(doneButton)

        gLog.verbose(“customerSourcePicker=\(customerSourcePicker)”)

        customerSourcePicker.showActionSheetPicker()

    }

效果:

转载请注明:在路上 » [已解决]swift实现左右联动选择

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