UIPickerView Row Color - iphone

Question

Does anyone know how to change the color of a row (or row background) in the UIPickerView control from the iPhone SDK? Similiar to the below title for row, however I would also like to change the color of the row:
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component;
Thank you.

Answer 1

Thanks Noah, that's exactly what I needed. I wanted to add the code here just in case anyone else needs (or wants to comment on :)
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view {
CGRect imageFrame = CGRectMake(0.0, 0.0, 15, 15);
UIImageView *label = [[[UIImageView alloc] initWithFrame:imageFrame] **autorelease**];
if (row == 0)
{
label.backgroundColor = [UIColor redColor];
}
if (row == 1)
{
label.backgroundColor = [UIColor blueColor];
}
if (row == 2)
{
label.backgroundColor = [UIColor blackColor];
}
return label;
}

Answer 2

You can return an arbitrary view in the delegate's -pickerView:viewForRow:forComponent:reusingView: method, documented here.

Answer 3

I implemented the following based on Sean's answer:
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view
{
CGRect rowFrame = CGRectMake(00.0f, 0.0f, [pickerView viewForRow:row forComponent:component].frame.size.width, [pickerView viewForRow:row forComponent:component].frame.size.height);
UILabel *label = [[UILabel alloc] initWithFrame:rowFrame];
label.font = [UIFont boldSystemFontOfSize:18.0f];
// This is an array I pass to the picker in prepareForSegue:sender:
label.text = [self.values objectAtIndex:row];
label.textAlignment = UITextAlignmentCenter;
// This is an array I pass to the picker in prepareForSegue:sender:
if ([self.backgroundColors count]) {
label.backgroundColor = [self.backgroundColors objectAtIndex:row];
// self.lightColors is an array I instantiate in viewDidLoad: self.lightColors = #[ [UIColor yellowColor], [UIColor greenColor], [UIColor whiteColor] ];
label.textColor = [self.lightColors containsObject:label.backgroundColor] ? [UIColor blackColor] : [UIColor whiteColor];
} else {
label.textColor = [UIColor blackColor];
}
return label;
}

Answer 4

-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component{
UILabel *labelSelected = (UILabel*)[pickerView viewForRow:row forComponent:component];
[labelSelected setTextColor:[UIColor redColor]];
}
And
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view{
UILabel *label = (id)view;
if (!label){
label=[[UILabel alloc]init];
label.textAlignment = NSTextAlignmentCenter;
pickerView.backgroundColor=[UIColor whiteColor];
label.text=[self pickerView:pickerView titleForRow:row forComponent:component];
label.textColor=[UIColor grayColor];
}
return label;
}

Answer 5

Do this:
label.backgroundColor = [UIColor yourcolorColor];