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- (void)viewDidLoad
{
    [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.
    
    for (UIView *view in self.view.subviews)
    {
        // this is how you programmatically add a gustom gesture recognizer
        UITapGestureRecognizer *recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];
        recognizer.delegate=self;

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CGRect passwordTextFieldFrame = CGRectMake(20.0f, 100.0f, 280.0f, 31.0f);
UITextField *passwordTextField = [[UITextField alloc] initWithFrame:passwordTextFieldFrame];
passwordTextField.placeholder = @"Password";
passwordTextField.backgroundColor = [UIColor whiteColor];
passwordTextField.textColor = [UIColor blackColor];
passwordTextField.font = [UIFont systemFontOfSize:14.0f];
passwordTextField.borderStyle = UITextBorderStyleRoundedRect;
passwordTextField.clearButtonMode = UITextFieldViewModeWhileEditing;
passwordTextField.returnKeyType = UIReturnKeyDone;
passwordTextField.textAlignment = UITextAlignmentLeft;

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// Manual Reference counting (MRR) - just like Maximum Rock'n'Roll!

/*

  With MRR you have to ensure that every object you allocate
  Moves from the start to the finish of its life cycle without being prematurely
  released and to guarantee that it does get finally released when it is time to do so
  Complicating matters is objective-C's MRR autorelease pool.
  If some objects are autoreleased and others must be released manaually how do you best control your objects?

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// thank you matt neuberg!!!

-(CGRect)textRectForBounds:(CGRect)bounds 
      limitedToNumberOfLines:(NSInteger)numberOfLines {
  CGSize sz = [self.text sizeWithFont:self.font
            constrainedToSize:CGSizeMake(self.bounds.size.width, 10000)
            lineBreakMode:self.lineBreakMode];
  return (CGRect) {bounds.origin, CGSizeMake(self.bounds.size.width, sz.height)];
}

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#pragma mark -
#pragma mark - UITextFieldDelegate
-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
    // let's check if the string is range is a number
    NSRange characterRange = [string rangeOfCharacterFromSet:[NSCharacterSet letterCharacterSet]];
    
    // if we've detected a character in our string, we're not going to insert that letter character in our text field
    if(characterRange.location != NSNotFound) {
        return NO;

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//  
 // MasterViewController.m  
 // CoffeeShop  
 //  
 //  
 // Copyright (c) 2013 uihelpers. All rights reserved.  
 //  
 #import "MasterViewController.h"  
 #import <RestKit/RestKit.h>  
 #import "Venue.h"  

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- (BOOL) isGyroscopeAvailable 
{
#ifdef __IPHONE_4_0
    CMMotionManager *motionManager = [[CMMotionManager alloc] init];
    BOOL gyroscopeAvailable = motionManager.gyroAvailable;
    [motionManager release];
    return gyroscopeAvailable;
#else
    return NO;
#endif

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//
//  FirstViewController.m
//  iOS_AR_Ch2_HardwareComparison
//
//  Created by Kyle Roche on 6/13/11.
//  Copyright 2011 Isidorey. All rights reserved.
//

#import "FirstViewController.h"

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/*
  Structs are the most flexible C data type
  can combine different types of data, access that data using named fields
  makes heavy use of C Structures -- many Core Frameworks in ObjC are written in pure C
*/

struct CGPoint {
  CGFloat x;
  CGFloat y;
};

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// Enumerations provide a concise, elegant method for defining a discrete set of values

typedef enum {
  SUNDAY,
  MONDAY,
  TUESDAY,
  WEDNESDAY,
  THURSDAY,
  FRIDAY,
  SATURDAY