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Objective C source code - First iPad application
this example from a Well House Consultants training course
Source code: ViewController.m Module: G914
//
// ViewController.m // mapslider // // Created by Graham Ellis on 10/03/2012. // Copyright (c) 2012 __MyCompanyName__. All rights reserved. // #import "ViewController.h" @implementation ViewController @synthesize mylabel; @synthesize mybutton; @synthesize img1; @synthesize tellName; - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } #pragma mark - View lifecycle - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; } - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; } - (void)viewDidDisappear:(BOOL)animated { [super viewDidDisappear:animated]; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations return YES; } int myInt = 0; -(IBAction)pressMe { NSString *stored; // Get rid of keyboard [tellName resignFirstResponder]; // Updating Label myInt++; // Label to include text which came from text button NSString *whoiam = tellName.text; // Regular Expression demo - step up 10 at a time if name is not a plain word NSError *error = NULL; NSRegularExpression *singleName = [NSRegularExpression regularExpressionWithPattern:@"^\\w+$" options:0 error:&error]; NSUInteger numberOfMatches = [singleName numberOfMatchesInString:whoiam options:0 range:NSMakeRange(0,[whoiam length])]; if (numberOfMatches == 0) myInt += 9; // If invalid, would be sensible to add a label to that effect ;-) if (myInt == 1) { stored = [NSString stringWithFormat:@"%@, you are most welcomed", whoiam]; } else { stored = [NSString stringWithFormat:@"%@, you disobey me %d times", whoiam, myInt-1]; } mylabel.text = stored; // Making an image opaque to switch between two images if (myInt % 2 == 1) { [img1 setAlpha:(CGFloat)0.0]; } else { [img1 setAlpha:(CGFloat)1.0]; } } -(IBAction)onReturn{ [tellName resignFirstResponder]; myInt = 0; [self pressMe]; } @end Learn about this subject
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