notes - ios for beginners

ios for beginners

Register as an apple developer:
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https://developer.apple.com/devcenter/ios/index.action

Evaluate the different types of developer program:
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https://developer.apple.com/programs/which-program/

Changing the text of a label:
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label.text = @"hello world";

Changing the label color:
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label.textColor = [UIColor cyanColor];

Change the label text from  a textbox:
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label.text = [textbox text];

Change the transparency of a textbox using a slider:
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textbox.alpha = [slider value];

Change an image:
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switch ([segment selectedSegmentIndex]) {
    case 0:
        [imageview setImage:[UIImage imageNamed:@"one.jpg"]];
        break;
    case 1:
        [imageview setImage:[UIImage imageNamed:@"two.jpg"]];
        break;
    case 2:
        [imageview setImage:[UIImage imageNamed:@"three.jpg"]];
        break;            
}

Getting the web control to work:
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@interface TMViewController : UIViewController
<UITextFieldDelegate>
@property (weak, nonatomic) IBOutlet UITextField *textbox;
@property (weak, nonatomic) IBOutlet UIWebView *web;
@end

- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    [web loadRequest:
     [NSURLRequest requestWithURL:
      [NSURL URLWithString:[textbox text]]]];
    
    [textField resignFirstResponder];
    return YES;
}

Getting the map control to work:
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#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>

@interface TMViewController : UIViewController
@property (weak, nonatomic) IBOutlet MKMapView *map;
- (IBAction)satellite:(id)sender;
@end

- (IBAction)satellite:(id)sender {
    [map setMapType:MKMapTypeSatellite];
}