自定義UIPickerView

Question

我試圖創建自定義UIPickerView，類似下面..：

http://img824.imageshack.us/img824/3015/pickercustom.png

例如： 從 「8h15」 到 「12h15」

我這個完全失明概念。

請幫助我...任何想法，主意將不勝感激。

Answer 1

查看documentation of UIPickerView。

Answer 2

它可能不是一個datepicker，它可能是UIPickerView的實例已經被配置這種方式：

http://developer.apple.com/library/ios/#documentation/uikit/reference/UIPickerView_Class/Reference/UIPickerView.html

Answer 3

你不能這樣做，用的UIDatePicker。改爲使用PickerView。您可以連續顯示「8h15」至「12h15」。有關快速教程，請參閱此link。

Answer 4

您可以使用帶3段的UIPickerView控件。填充每個段上的預定義數據。

Answer 5

您將不得不自定義UIPickerView。要選擇小時數，您應該創建兩個包含您想要的值/標題的數組。

UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(22, 170, 275, 217)]; 
    pickerView.delegate = self; 
    pickerView.dataSource = self; 
    pickerView.showsSelectionIndicator = YES; 
    pickerView.opaque = NO; 
    [self.view addSubview:pickerView]; 
    [pickerView release]; 

，並委託方法

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView { 

return 3; 
    } 

    - (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent: (NSInteger)component { 
NSInteger count = 0; 
switch (component) { 
    case 0: 
     count = [arrayHours1 count]; 
     break; 
      case 1: 
        count =  1; 
    case 2: 
     count = [arrayHours2 count]; 
     break; 
} 
return count; 
    } 

    - (NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component { 
NSString *title = @""; 
switch (component) { 
    case 0: 
     title = [arrayHours1 objectAtIndex:row]; 
     break; 
    case 2: 
     title = [arrayHours2 objectAtIndex:row]; 
     break; 
} 
return title; 

    } 

希望這有助於！

Answer 6

您可以檢查： -

代碼在這裏

的NSDate * choosen = datePickerView。日期;

 NSDateFormatter *formatter = [[NSDateFormatter alloc]init]; 

     [formatter setDateFormat:@"yyyy-MM-dd"]; 

     //[formatter setDateFormat:@"dd-MM-yyyy"]; 

     NSString *weekday = [formatter stringFromDate:choosen]; 

     invoiveDateTxtFld.text = [[NSString alloc] initWithFormat:@"%@", weekday];