Overview

A custom UIActionSheet for adding tip/gratuity. Contains a UIPickerView, and accessories to handle tip/gratuity in dollar amounts as well as percentage amounts. Once a tip/gratuity is selected the Delegate is called returning the tip/gratuity amount, total, and percentage.

Installation

Manually

• Copy the MTGratuityPicker/Classes directory to your project.
• Import the headers: #import "MTTipViewController.h" #import "MTTipViewControllerDelegate.h"

Example Code

Include the headers:

#import "MTTipViewController.h" 
#import "MTTipViewControllerDelegate.h"

Implement the delegate:

@interface MTGratuityPickerExampleViewController : UIViewController <MTTipViewControllerDelegate>
{

}

Create an instance of the MTGratuityPicker:

NSDecimalNumber *total = [NSDecimalNumber decimalNumberWithString:@"25.50"];
MTTipViewController  *tipController = [[MTTipViewController alloc] initWithSubtotalAndSelectedPercentage:total selectedPercentage:[NSDecimalNumber one]];

CGRect frame = CGRectMake(tipController.view.frame.origin.x, 
                                self.view.frame.size.height, 
                        tipController.view.frame.size.width, 
                        tipController.view.frame.size.height);

tipController.view.frame = frame;
[tipController setDelegate:self];
[self addChildViewController:tipController];
[tipController viewWillAppear:YES];
[self.view addSubview:tipController.view];
[tipController viewDidAppear:YES];
[tipController didMoveToParentViewController:self];

Show the MTGratuityPicker in the view:

[tipController showInParentView];

Implement the delegate method didSelectTipAmount:

#pragma mark -
#pragma mark MTTipViewControllerDelegate Methods

- (void)didSelectTipAmount:(NSDecimalNumber *)tipAmount forTotalAmount:(NSDecimalNumber *)totalAmount atPercent:(int) percent
{
    NSLog(@"Delegate Selected %@ for %@", tipAmount, totalAmount);
    NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
    [numberFormatter setNumberStyle: NSNumberFormatterCurrencyStyle];
    [lblTotalAmount setText:[numberFormatter stringFromNumber:totalAmount]];
    [lblTipAmount setText:[numberFormatter stringFromNumber:tipAmount]];
}

See the Example folder for a full example with a UIViewController.

You can also override the title, and button text. The UIPickerView uses the NSLocaleCurrencySymbol for the currency.

[tipController setTitle:<#(NSString *)#>];
[tipController setAddTipPrompt:<#(NSString *)#>];
[tipController setCancelTipPrompt:<#(NSString *)#>];

Creators

Matthew Teece @doctorteece

License

MTGratuityPicker is available under the MIT license. See the LICENSE file for more info.