多选择选择器视图不能有一个比别人

Question

目的更多的选择：

• 要设置选择挑年龄，玩家数量和局
• 值年龄应该是8,9,10
• 值的数字应该是0-99的
• 值局应该是1-6

问题：

只有3个选项出现在每个我测试时，如果有更多的数组，他们没有出现，如果有更少的崩溃。

问题：

• 如何显示的每个项目的选择是否正确？
• 如何使0-99选取器走0,1,2 ...而不必列出每个单独的数字，如0 ... 99（我试过这个，它不起作用）？

代码：

import UIKit 

class PitcherPickerViewController: UIViewController, UIPickerViewDelegate, UIPickerViewDataSource { 

    @IBOutlet weak var picker: UIPickerView! 

    var pickerData: [[String]] = [[String]]() 

    override func viewDidLoad() { 
     super.viewDidLoad() 
     // Do any additional setup after loading the view. 

     // Connect data: 
     self.picker.delegate = self 
     self.picker.dataSource = self 

     // Input data into the Array: 
     pickerData = [["8", "9", "10"], 
      ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "60", "61", "62", "63", "64", "65", "66", "67", "68", "69", "70", "71", "72", "73", "74", "75", "76", "77", "78", "79", "80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "91", "92", "93", "94", "95", "96", "97", "98", "99"], 
      ["1", "2", "3", "4", "5", "6"]] 
    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 
    } 


    // The number of columns of data 
    func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int { 
     return 3 
    } 

    // The number of rows of data 
    func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { 
     return pickerData.count 
    } 

    // The data to return for the row and component (column) that's being passed in 
    func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? { 
     return pickerData[component][row] 
    } 

    // Catpure the picker view selection 
    func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) { 
     // This method is triggered whenever the user makes a change to the picker selection. 
     // The parameter named row and component represents what was selected. 
    } 


} 

Answer 1

pickerData是阵列

的数组

尝试以下操作：

func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { 
    return pickerData[component].count 
} 

如果你不想连续数相应地改变pickerData因为titleForRow委托方法中使用的是什么。