iOS uipicker component and row selection

[mikeyman77]

Hello,

I'm quite new to this iPhone programming and can up to now figure out and get code working but i cant seem to get this working. I wonder if anyone can help !!!


I have a uipicker with 2 components. 0 & 1

I want a text label to display information related to the Uipicker row combination. For example if i select row 37 on component 0 and row 2 on component 1 it will display info which would be different if i selected row 12 on component 0 with row 1 on component 1.

so i can show text related to the first component but nothing when selecting component 1.

Component 0 is loaded with a Array which is constant.
Component 1 is loaded with different arrays depending on the selected row in component 0.

Below is what i've got and cant figure out:

if ((component == 0 && row == 93) && (component== 1 && row ==0)){ 
        [mypickerView selectRow:0 inComponent:1 animated:YES];        
        [mypickerView reloadComponent:1];      
        label1.text =[[[NSString alloc] initWithFormat:@"1 hour" ]autorelease]; }     
    
    
   else if ((component==0 && row == 94) && (component==1 && row == 1)){        
       label1.text =[[[NSString alloc] initWithFormat:@"2 hour" ]autorelease];}
    
    
    
    else if  ((component==0 && row == 94) && (component==1 && row == 2)){        
       label1.text =[[[NSString alloc] initWithFormat:@"3 hour" ]autorelease];}   
    
    
    else if ((component==0 && row == 94) || (component==1 && row == 3)){
      label1.text =[[[NSString alloc] initWithFormat:@"4 hour" ]autorelease];}       
    
    
     else if ((component==0 && row == 94) || (component==1 && row == 4)){ 
        label1.text =[[[NSString alloc] initWithFormat:@"5 hours" ]autorelease];}
    
    
    else if   ((component==0 && row == 94) || (component==1 && row == 5)){       
        label1.text =[[[NSString alloc] initWithFormat:@"6 hours" ]autorelease];}

if guess i asking how do i write the combination of (component 0 with row + component 1 + row ) ???


Thank you

 

[dejo]

Two things:

1) Where does the code you supplied reside? How is it used?

2) You talk about having arrays to load the components but then don't use them in your code-snippet. Why not?

 

[mikeyman77]

uipickerview code

sorry this is my code:

@synthesize mypickerView;

-(IBAction)pushBack {
    [self dismissModalViewControllerAnimated:YES];
}



- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)didReceiveMemoryWarning
{
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];
    
    // Release any cached data, images, etc that aren't in use.
}

#pragma mark - View lifecycle

- (void)viewDidLoad
{
         
     
    [super viewDidLoad];   
    
    model = [[NSMutableArray alloc] init ];
    [model addObject:@"G645"];     
    [model addObject:@"G756"];           
    [model addObject:@"G976"];   
    [model addObject:@"GP563"];   
    [model addObject:@"GPS456"];  
    [model addObject:@"GPS459"]; 
    [model addObject:@"GP12344"];   
    [model addObject:@"HT7893"];   
    [model addObject:@"HT7854"];          
    [model addObject:@"Z4569"];   
    
    
    equip = [[NSMutableArray alloc] init ];
    [equip addObject:@"equip QW35"];     
    [equip addObject:@"equip Q7462"];           
    [equip addObject:@"equip V67"];   
    [equip addObject:@"equip FG87"];     
    [equip addObject:@"equip E6743"]; 
    [equip addObject:@"equip Y678"]; 
   
    
    equip1 = [[NSMutableArray alloc] init ];  
    [equip1 addObject:@"equip Z684"];     
    [equip1 addObject:@"equip H784"];           
    [equip1 addObject:@"equip I744"];   
    [equip1 addObject:@"equip P8494];     
    [equip1 addObject:@"equip Y848"]; 
    [equip1 addObject:@"equip I8998"]; 



    equip2 = [[NSMutableArray alloc] init ];  
    [equip2 addObject:@"no equip"];

    

[mypickerView selectRow:0 inComponent:0 animated:YES];
       
    
    
    // Do any additional setup after loading the view from its nib.
}

-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView{
  return 2;}
    



- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent :(NSInteger)component 
{ 
	if (component == 0) {
         return [model count];
    }
    
    else if (component == 1) {
        
        if ([mypickerView selectedRowInComponent:0] == 2) {
          return [equip count];
        }
        
        else if ([mypickerView selectedRowInComponent:0] == 3) {
         return [equip1 count];
        }
        
        else if ([mypickerView selectedRowInComponent:0] == 4) {
        return [equip1 count];
        }
        
        else if ([mypickerView selectedRowInComponent:0] == 6) {
        return [equip count];
        }
        else {return [equip2 count];}
        }return 0;}   



- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{


if (component == 0) {
    
    return [necproj objectAtIndex:row];
}

else if (component == 1) {
    
    if ([mypickerView selectedRowInComponent:0] == 2) {
    return [equip objectAtIndex:row];
    }
    
    else if ([mypickerView selectedRowInComponent:0] == 3) {
    return [equip1 objectAtIndex:row];
    }
    
    else if ([mypickerView selectedRowInComponent:0] == 4) {
    return [equip1 objectAtIndex:row];
    }
    
    else if ([mypickerView selectedRowInComponent:0] == 6) {
    return [equip objectAtIndex:row];
    }
     else {return [equip2 objectAtIndex:row];}    
    }return  0;}    
 




 -(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
    
    
    
   
  
 
    if  (component == 0 && row == 0){
        [mypickerView reloadComponent:1];   
        [mypickerView selectRow:0 inComponent:1 animated:NO];
        label1.text =[[[NSString alloc] initWithFormat:@"1 hour" ]autorelease];}
      
       
     if ((component == 0 && row == 1)|| (component==1 && row ==0)){
        [mypickerView reloadComponent:1];
         label1.text =[[[NSString alloc] initWithFormat:@"1 hour" ]autorelease];}  
    
   
     if ((component == 0 && row == 2)|| (component==1 && row ==0)){      
        [mypickerView reloadComponent:1];
         label1.text =[[[NSString alloc] initWithFormat:@"2 hour" ]autorelease];}
    
       
       else if ((component==modelComponent && row == 2) || (component==lensComponent && row == 1)){ 
                  [mypickerView reloadComponent:1];
                  label1.text =[[[NSString alloc] initWithFormat:@"3 hour ]autorelease];}
    
    
    
       else if  ((component==modelComponent && row == 2) || (component==lensComponent && row == 2)){        
                  [mypickerView reloadComponent:1];
                  label1.text =[[[NSString alloc] initWithFormat:@"5 hour" ]autorelease];}   
    
    
       else if ((component==modelComponent && row == 2) || (component==lensComponent && row == 3)){ 
                 [mypickerView reloadComponent:1];  
                 label1.text =[[[NSString alloc] initWithFormat:@"7 hour" ]autorelease];}       
    
    
    
       else if ((component==modelComponent && row == 2) || (component==lensComponent && row == 4)){ 
                [mypickerView reloadComponent:1];
                label1.text =[[[NSString alloc] initWithFormat:@"9 hour" ]autorelease];}
    
    
    
       else if  ((component==modelComponent && row == 2) || (component==lensComponent && row == 5)){     
                [mypickerView reloadComponent:1];
                label1.text =[[[NSString alloc] initWithFormat:@"3.5 hour" ]autorelease];}          
    
    
    
       else if  ((component==modelComponent && row == 2) || (component==lensComponent && row == 6)){     
                [mypickerView reloadComponent:1];
                label1.text =[[[NSString alloc] initWithFormat:@"33 hour" ]autorelease];} 




   

   if ((component == 0 && row == 3)|| (component==1 && row ==0)){      
        [mypickerView reloadComponent:1];        
        label1.text =[[[NSString alloc] initWithFormat:@"4 hours" ]autorelease];}     






 so on and so on .................................










- (void)dealloc {
  
    [super dealloc];
}


- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

@end

Thank you

 

[dejo]

Just a reminder: Posting code, please use the

 tags[/URL]