如何在Xcode选择器上存储信息？

Question

I'm new to Xcode.

I'm trying to make my second iPhone application, it's based on alcoholic drinks , how to prepare them (for example: Sex on the beach, Daikiri, etc.)

My question is how can I change the pickers options and store information in each one of them.

When the user chooses a specific drink from the picker load up the information..

How can i do this ?

Answer 1

You can use UIPickerView controller to perform this task.

Take UIPickerView controller in the xib of viewcontrller in which you want to do this task.

Then specify UIPickerViewDelegate,UIPickerViewDataSource and IBOutlet UIPickerView *pickerview in your viewcontroller.h file.

Then use delegate methods of UIPickerView as follows ;

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView;
{
    return 1; 
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component;
{
    return [yourArray count]; //give array that contains the alcoholic drinks values....
}

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component;
{
    return [yourArray objectAtIndex:row]; //display alcoholic drinks in picker....

}

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
  //display whichever information you want to display after selection in picker
}