ios动态创建UIView

- (id)initWithFrame:(CGRect)frame;          // default initializer

// (CGRect)frame：UIView的大小

创建一个UIView

- (void)viewDidLoad

{

    UIView *v = [[UIView alloc]initWithFrame:CGRectMake(10, 50, 300, 200)]; // 初始化一个UIView

    [v setBackgroundColor:[UIColor redColor]]; // 设置背景颜色

    [self.view addSubview:v]; // 将创建的视图添加到当前视图中

//    [UIButton]

[super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

}

ios动态创建UIView