iOS 視圖層次管理 sendSubviewToBack、bringSubviewToFront

標籤：ios   sendsubviewtoback   bringsubviewtofront   

直接上代碼

- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.        UIView *view1 = [[UIView alloc] initWithFrame:CGRectMake(10, 50, 100, 50)];    view1.backgroundColor = [UIColor blueColor];    [self.view addSubview:view1];        UIView *view2 = [[UIView alloc] initWithFrame:CGRectMake(15, 55, 100, 50)];    view2.backgroundColor = [UIColor grayColor];    [self.view addSubview:view2];        //如果將下面兩行代碼都注釋掉   view1 會在下面   view2會在上面    //  下面這行代碼能夠將view2  調整到父視圖的最下面//    [self.view sendSubviewToBack:view2];    //將view調整到父視圖的最上面    [self.view bringSubviewToFront:view1];    }

iOS 視圖層次管理 sendSubviewToBack、bringSubviewToFront