如何閱讀uipicker多個組件時更改一個組件

Question

我有一個3組件ui選擇器索引，日期和時間的諮詢。

我想在第一個組件被改變時讀取第二和第三個組件的值。

當組件1被更改時，應該如何閱讀UIPicker中的第二和第三組件？

days=@[@"Sunday",@"Monday",@"Tuesday",@"Wednesday",@"Thursday",@"Friday",@"Saturday"]; 
self.indexes=@[@"1",@"2",@"3",@"4",@"5",@"6",@"7"]; 
timeOfConsultation=@[@"9:00 AM",@"11:00 AM"]; 

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component 
{ 
     if(component == 0){ 
     _labelValueIndex.text = [self.indexes objectAtIndex:row]; 

     // When component 1 is spinned read component 2 and component 3 value even if they are not spinned 
    [days objectAtIndex:row];// incorrect value as row variable is like global if i select indexes[1] . i also get days[1] and timeOfConsultation [1] 

     // How to read component 2 and component 3 value from component1 change event 

    }else if (component == 1){ 

     labelValueBookingDay.text = [days objectAtIndex:row]; 
    } 
    else{ 
     labelValueTimeOfConsultation.text = [timeOfConsultation objectAtIndex:row]; 
    } 
} 

Answer 1

使用此代碼 -

NSString *YourselectedTitle = [self.yourArrayName objectAtIndex:[self.yourPickerName selectedRowInComponent:1]]; 
NSLog(@"%@", YourselectedTitle); 

希望這有助於！