self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
self.window.rootViewController = [[UIViewController alloc] init];
//UIButton
//1.创建(便利构造器)
UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
//2.设置frame
btn.frame = CGRectMake(100, 100, 100, 100);
//3.设置属性
btn.backgroundColor = [UIColor redColor];
//4.绑定按钮点击事件(按钮点击时 能够触发一个方法)
//参数一:Target 目标(调用方法的人) 参数二:action 动作(调用的方法) 参数三:Events 事件(方法的触发条件)
//UIControlEventTouchUpInside 控制事件之 触摸顶端按下去
// : 参数标志(之后一定会跟随一个参数)
[btn addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];
//5.添加父视图
[self.window addSubview:btn];
//按钮文字
//参数1: 标题内容 参数2: 状态
[btn setTitle:@"正常" forState:UIControlStateNormal];
//按钮长按就是高亮状态
[btn setTitle:@"高亮" forState:UIControlStateHighlighted];
//高亮时 按钮显示触摸
btn.showsTouchWhenHighlighted = YES;
//建一个button 绑定click:
UIButton *btn1 = [UIButton buttonWithType:UIButtonTypeSystem];
btn1.frame = CGRectMake(100, 300, 100, 100);
btn1.backgroundColor = [UIColor yellowColor];
[btn1 addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];
[self.window addSubview:btn1];
[btn1 setTitle:@"正常" forState:UIControlStateNormal];
[btn1 setTitle:@"高亮" forState:UIControlStateHighlighted];
btn1.showsTouchWhenHighlighted = YES;
btn.tag = 1000;
btn1.tag = 2000;
[_window release];
return YES;
}
//-(void)click:(id)sender{
-(void)click:(UIButton *)sender{
sender.backgroundColor = [UIColor colorWithHue:arc4random() % 256 / 255.0 saturation:arc4random() % 256 / 255.0 brightness:arc4random() % 256 / 255.0 alpha:1];
// NSLog(@"点点点");
// NSLog(@"%@",sender);
if (sender.tag == 1000) {
NSLog(@"上上上");
}
if (sender.tag == 2000) {
NSLog(@"下下下");
}
