Backpack/Nudger

Default

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Usage

BPKNudger contains the Backpack Nudger component. It's an adjustable control that allows a traveller to select a numerical value between a min/max determined by the consumer.

It uses the iOS accessibility adjustable trait so that users of Assistive Technology can easily interact with it.

Objective-C

                                                
                                                #import <Backpack/Nudger.h>
                                                
                                                BPKNudgerConfiguration *nudgerConfiguration = [[BPKNudgerConfiguration alloc]
                                                    initWithLabel:@"Passengers"
                                                    valueFormatter:^(double value) {
                                                        return [NSNumberFormatter localizedStringFromNumber:@(value) numberStyle:NSNumberFormatterDecimalStyle];
                                                    }
                                                    accessibilityLabelFormatter:^(double value) {
                                                        NSString *number = [NSNumberFormatter localizedStringFromNumber:@(value) numberStyle:NSNumberFormatterDecimalStyle];
                                                        return [NSString stringWithFormat:@"%@ passengers", number];
                                                    }
                                                ];
                                                
                                                BPKNudger *nudger = [[BPKNudger alloc] initWithConfiguration:nudgerConfiguration];
                                                nudger.minimumValue = 2;
                                                nudger.maximumValue = 9;
                                                nudger.value = 4;

Swift

                                                
                                                import Backpack
                                                
                                                let nudgerConfiguration = BPKNudgerConfiguration(
                                                    label:"Passengers",
                                                    valueFormatter: { (value) -> String in
                                                        NumberFormatter.localizedString(from: NSNumber(value: value), number: .decimal)
                                                    }
                                                )
                                                
                                                let nudger = BPKNudger(configuration: nudgerConfiguration)
                                                nudger.minimumValue = 2
                                                nudger.maximumValue = 9
                                                nudger.value = 4