如何在iPhone应用程序中使用2选择器视图？

Question

I want to use two picker view in one xib. How can i do that ?

Answer 1

You can use single PickerView for two operations- Pass Array Values with Tag Values

for First Operation :

self.pickerView = [[NSMutableArray alloc]initWithObjects:@"France", @"Italy", @"California", @"", nil];
self.pickerView.tag = 111;

For second operation:

self.pickerView = [[NSMutableArray alloc]initWithObjects:your array values, @"",nil];
self.pickerView.tag = 222; 

Then in

-(void)pickerView:(UIPickerView *)pView didSelectRow:(NSInteger)row inComponent:           (NSInteger)component
{


    if (self.pickerView.tag == 111) {

        NSLog(@"First Picker View selected Value")
    }
    else if(self.pickerView.tag == 222){

        NSLog(@"Second Picker View Selected Value")
    }

}

Answer 2

You can add two UIPickerView and create two properties for them like bellow

 @property (nonatomic, retain) IBOutlet UIPickerView* pv1;
 @property (nonatomic, retain) IBOutlet UIPickerView* pv2;

and then work with them.

Answer 3

When you want to load pv1 then call

[pv1 reloadAllComponents];

and when you want to load pv2 then call

[pv2 reloadAllComponents];