iOS関連の公開資料

h1. ハンズオン資料

h3. BMIアプリのコード

• リスト02-01

//
// ViewController.m
//
//

#import "ViewController.h"

@interface ViewController ()
@property (weak, nonatomic) IBOutlet UITextField *weightText;
@property (weak, nonatomic) IBOutlet UITextField *heightText;
@property (weak, nonatomic) IBOutlet UILabel *resultLabel;
@end

@implementation ViewController

• (void)viewDidLoad
  {
  [super viewDidLoad];
  }

• (void)didReceiveMemoryWarning
  {
  [super didReceiveMemoryWarning];
  }

• (IBAction)bmiButtonPushed:(id)sender
  {
  float h = _heightText.text.floatValue / 100;
  float w = _weightText.text.floatValue;

  float bmi = w / (h * h);
  NSLog(@"bmi = %f", bmi);

  if (bmi >= 25) {
  _resultLabel.text = @"太りすぎ";
  } else if (bmi < 18.5) {
  _resultLabel.text = @"やせすぎ";
  } else {
  _resultLabel.text = @"標準";
  }
  }
  @end

• リスト02-02

if (bmi >= 25) {
_resultLabel.text = @"太りすぎ";
_resultLabel.backgroundColor = [UIColor redColor];
} else if (bmi < 18.5) {
_resultLabel.text = @"やせすぎ";
_resultLabel.backgroundColor = [UIColor yellowColor];
} else {
_resultLabel.text = @"標準";
_resultLabel.backgroundColor = [UIColor greenColor];
}

• リスト02-03

#import

• リスト02-04

@property (strong, nonatomic) AVAudioPlayer *audioPlayer;

• リスト02-05

• (void) sound:(NSString *)file
  {
  NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle]
  pathForResource:file ofType:@"aif"]];
  _audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];
  [_audioPlayer play];
  }

• リスト02-06

if (bmi >= 25) {
_resultLabel.text = @"太りすぎ";
_resultLabel.backgroundColor = [UIColor redColor];
[self sound:@"fat"];
} else if (bmi < 18.5) {
_resultLabel.text = @"やせすぎ";
_resultLabel.backgroundColor = [UIColor yellowColor];
[self sound:@"skinny"];
} else {
_resultLabel.text = @"標準";
_resultLabel.backgroundColor = [UIColor greenColor];
[self sound:@"normal"];
}

h3. サウンドファイル