iPhone - 02

[judaco]

//
//  ViewController.m
//  Label
//
//  Created by hackeru on 05/04/2017.
//  Copyright © 2017 juda. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController
{
    UILabel * label;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    label = [[UILabel alloc] initWithFrame:CGRectMake(20, 100, 100, 70)];
    label.text = @"Hi Juda, welcome on board";
    label.adjustsFontSizeToFitWidth = true;//fit my font size to the height and width of my frame
    label.textColor = [UIColor greenColor];//choosing a text color
//    label.numberOfLines = 2;
//    label.font = [UIFont boldSystemFontOfSize:14];
//    label.lineBreakMode = NSLineBreakByClipping;//cutting my phrase by the font size which i defined
    [self.view addSubview:label];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

[judaco]

//
//  ViewController.m
//  Button
//
//  Created by hackeru on 05/04/2017.
//  Copyright © 2017 juda. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController
{
    UIButton * btn;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    btn = [UIButton buttonWithType:UIButtonTypeSystem];//system the basic button in iPhone
    btn.frame = CGRectMake(100, 70, 100, 40);
    [btn setTitle:@"click me" forState:UIControlStateNormal];
    [btn setTitle:@"I'm clicked" forState:UIControlStateHighlighted];//if i want to change the written on the button

    //1.my target id is self. 2.if the button clicked must get a parm, we must add the ":" after the name of the method
    [btn addTarget:self action:NSSelectorFromString(@"buttonTouchDown:") forControlEvents:UIControlEventTouchDown];
    [btn addTarget:self action:NSSelectorFromString(@"buttonTouchUp:") forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:btn];
}

-(void)buttonTouchDown: (UIButton *) sender {
    NSLog(@"touch");
}
-(void)buttonTouchUp: (UIButton *) sender {
    NSLog(@"up");
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

[judaco]

//
//  ViewController.m
//  CounterPlus
//
//  Created by hackeru on 05/04/2017.
//  Copyright © 2017 juda. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController
{
    UIButton * btn;
    UILabel * label;
    int counter;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    //label = [[UILabel alloc] initWithFrame:CGRectMake((self.view.frame.size.width-100)/2, 100, 100, 30)];
    label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 100, 30)];
    label.center = CGPointMake(self.view.center.x, 150);
    label.text = [[NSString alloc] initWithFormat:@"%i", counter];
    label.textAlignment = NSTextAlignmentCenter;
    label.backgroundColor = [UIColor yellowColor];

    [self.view addSubview:label];
    btn = [UIButton buttonWithType:UIButtonTypeSystem];
    btn.frame = CGRectMake(label.frame.origin.x, label.frame.origin.y + label.frame.size.height + 5, label.frame.size.width, label.frame.size.height);
    [btn setTitle:@"increase" forState:UIControlStateNormal];
    //[btn addTarget:self action:NSSelectorFromString(@"buttonTouchDown:") forControlEvents:UIControlEventTouchDown];
    [btn addTarget: self action: NSSelectorFromString(@"btnIncrease:") forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview: btn];

}

-(void)btnIncrease: (UIButton *) sender {
    counter++;
    label.text = [[NSString alloc] initWithFormat:@"%i", counter];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

[judaco]

//
//  ViewController.m
//  Button Image
//
//  Created by hackeru on 05/04/2017.
//  Copyright © 2017 juda. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController
{
    UIButton * button;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    UIImage * img1 = [UIImage imageNamed:@"img1"];
    UIImage * img2 = [UIImage imageNamed:@"img2"];

    button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(0, 0, 100, 100);
    button.center = self.view.center;

    [button setTitle:@"click me" forState:UIControlStateNormal];
    [button setTitle:@"clicked" forState:UIControlStateHighlighted];
    [button setTitleColor: [UIColor greenColor] forState:UIControlStateNormal];
    [button setBackgroundImage:img1 forState:UIControlStateNormal];
    [button setBackgroundImage:img2 forState:UIControlStateHighlighted];

    [self.view addSubview:button];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end