Day2

1  Button 手写代码生产的方式

-(void)viewDidLoad
{
    [super viewDidLoad];
    
    UIButton *btn = [[UIButton alloc]init];
    btn.frame = CGRectMake(0, 100, 100, 100);
    [btn setTitle:@"click" forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
    
    UIImage *image = [UIImage imageNamed:@"btn_01"];
    [btn setBackgroundImage:image forState:UIControlStateNormal];
    
    [btn setBackgroundImage:[UIImage imageNamed:@"btn_02"] forState:UIControlStateHighlighted];
    
    [self.view addSubview:btn];
    
}

　　

//添加button点击事件  self.click方法
[btn addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];

　

self.headImageView = btn;//相当于连线 监听方法连线 

2 Label  Image Button 手写代码生成以及其他属性的设置

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    //标签描述
    UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, 20, 320, 40)];
    label.text = @"1/5";
    label.textAlignment = NSTextAlignmentCenter;
    [self.view addSubview:label];
    self.noLabel = label;
    
    //图片
    UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(60, 70, 200, 200)];
    imageView.image = [UIImage imageNamed:@"biaoqingdi"];
    [self.view addSubview:imageView];
    self.icon = imageView;
    
    //图片描述
    UILabel *iconLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 300, 320, 80)];
    iconLabel.text = @"什么表情都弱爆了";
    iconLabel.textAlignment = NSTextAlignmentCenter;//居中
    [self.view addSubview:iconLabel];
    self.descriptionLabel = iconLabel;
    
    //left icon
    UIButton *leftBtn = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 40, 40)];
    leftBtn.center = CGPointMake(self.icon.frame.origin.x/2, self.icon.center.y);
    [leftBtn setBackgroundImage:[UIImage imageNamed:@"left_normal"] forState:UIControlStateNormal];
    [self.view addSubview:leftBtn];
    self.leftButton = leftBtn;
    
    //right btn
    UIButton *rightBtn = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 40, 40)];
    rightBtn.center = CGPointMake(self.view.frame.size.width- self.icon.frame.origin.x/2, self.icon.center.y);
    [rightBtn setBackgroundImage:[UIImage imageNamed:@"right_normal"] forState:UIControlStateNormal];
    [self.view addSubview:rightBtn];
    self.leftButton = rightBtn;
}