I want to achieve the following functionality in Custom UIPiker as shown in below picture.
I want to change the text colour of selected area only like above.
Add lable in your pickerview in your viewDidLoad
method as below.
Define label
and myPickerView
both in ViewController.h
file
- (void)viewDidLoad
{
myPickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 200, 320, 200)];
myPickerView.delegate = self;
myPickerView.showsSelectionIndicator = YES;
[self.view addSubview:myPickerView];
label = [[UILabel alloc] initWithFrame:CGRectMake(145, 76, 36, 36)];
//label.text = @"Label";
label.font = [UIFont boldSystemFontOfSize:20];
label.layer.cornerRadius = 18;
[label setTextColor:[UIColor whiteColor]];
label.backgroundColor = [UIColor blueColor];
label.textAlignment = NSTextAlignmentCenter;
label.shadowColor = [UIColor whiteColor];
label.shadowOffset = CGSizeMake (0,1);
[myPickerView addSubview:label];
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
in pickerview delegate set label title.
#pragma mark - PickerView delegate
- (void)pickerView:(UIPickerView *)pickerView didSelectRow: (NSInteger)row inComponent:(NSInteger)component {
// Handle the selection
[label setText:[NSString stringWithFormat:@"%d",row]];
NSLog(@"%@",[NSString stringWithFormat:@"%d",row]);
}
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
NSLog(@"%@",[NSString stringWithFormat:@"%d",row]);
[label setText:[NSString stringWithFormat:@"%d",row]];
return [NSString stringWithFormat:@"%d",row];
}
Your OuytPut is :