#pragma mark - Picker View Data Source

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
    return 24;
}

- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
    if (component == 0) {
        return 3;
    } else if (component == 1) {
        return 1;
    } else if (component == 2) {
        return 60;
    } else /*if (component == 3)*/ {
        return 1;
    }
}

#pragma mark - Picker View Delegate

- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component {
    return 33;
}

- (CGFloat)pickerView:(UIPickerView *)pickerView widthForComponent:(NSInteger)component {
    if (component == 0) {
        return pickerView.frame.size.width * 0.25f;
    } else if (component == 1) {
        return pickerView.frame.size.width * 0.15f;
    } else if (component == 2) {
        return pickerView.frame.size.width * 0.20f;
    } else if (component == 3) {
        return pickerView.frame.size.width * 0.40f;
    }
    return 0;
}

- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view {

    UILabel *label;
    if (view.class == UILabel.class) {
        label = (UILabel *) view;
    } else {
        label = [[UILabel alloc] init];
    }

    if (component == 0) {
        [label setBackgroundColor:[UIColor redColor]];
        [label setTextAlignment:NSTextAlignmentRight];
        [label setFont:[UIFont systemFontOfSize:24]];
        [label setText:[NSString stringWithFormat:@"%i",(int)row]];
        return label;
    } else if (component == 1) {
        [label setBackgroundColor:[UIColor blueColor]];
        [label setUserInteractionEnabled:NO];
        [label setTextAlignment:NSTextAlignmentLeft];
        [label setFont:[UIFont systemFontOfSize:22]];
        [label setText:@"hours"];
        return label;
    } else if (component == 2) {
        [label setBackgroundColor:[UIColor greenColor]];
        [label setFont:[UIFont systemFontOfSize:24]];
        [label setTextAlignment:NSTextAlignmentRight];
        [label setUserInteractionEnabled:YES];
        [label setText:[NSString stringWithFormat:@"%i",(int)row]];
        return label;
    } else /*if(component == 3)*/ {
        [label setBackgroundColor:[UIColor yellowColor]];
        [label setUserInteractionEnabled:NO];
        [label setTextAlignment:NSTextAlignmentLeft];
        [label setFont:[UIFont systemFontOfSize:22]];
        [label setText:@"min"];
        return label;
    }
}