Xcode 自定义控件创建及触发事件

#pragma mark 控制器的view加载完毕的时候调用
//一般在这里进行界面的初始化
- (void)viewDidLoad {
    [super viewDidLoad];

    NSLog(@"%s","ddffg");

    //添加

    //创建控件
    UIButton *btn=[[UIButton alloc]init];

    //添加控件
    [self.view addSubview:btn];

    //设置控件的frame
    btn.frame=CGRectMake(, , , );

    //设置背景色
    btn.backgroundColor=[UIColor redColor];

    //设置背景图片
    UIImage *image=[UIImage imageNamed:@"a18.jpg"];
    [btn setBackgroundImage:image forState:UIControlStateNormal];

    UIImage *image2=[UIImage imageNamed:@"a1.jpg"];
    [btn setBackgroundImage:image2 forState:UIControlStateHighlighted];

    //设置文字
    [btn setTitle:@"立海" forState:UIControlStateNormal];

    [btn setTitle:@"娃娃" forState:UIControlStateHighlighted];

    //设置文字颜色
    [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor blueColor] forState:UIControlStateHighlighted];

    //监听按钮点击，事件名：btnClick
    [btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];

    //addBtn按钮同样监听 事件史：btnClick
    UIButton *addBtn=[UIButton buttonWithType:UIButtonTypeContactAdd];

    [addBtn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
    //设置按钮在界面的位置
    addBtn.center=CGPointMake(, );

    // //添加控件到界面
    [self.view addSubview:addBtn];

}

-(void) btnClick:(UIButton *)click
{

    NSLog(@"%@ 按钮事件触发了！",click);
}