Question

我似乎无法打印我的第二个UILabel，但第一个打印出来。任何帮助表示赞赏。

我正在尝试在蓝色uiview上打印黄色标签，就像我已成功完成红色标签一样。

这是我的代码：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:  (NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
CGRect frame = CGRectMake(10, 30, 100, 100);

UILabel *myLabel = [[UILabel alloc] initWithFrame:frame];
UILabel *myLabel2= [[UILabel alloc] initWithFrame:frame];


myLabel=[[UILabel alloc] initWithFrame:CGRectMake(50, 50, 100, 100)];
myLabel.backgroundColor = [UIColor redColor];
myLabel.text = @"Hello";

myLabel2=[[UILabel alloc] initWithFrame:CGRectMake(50,300,100,100)];
myLabel2.backgroundColor=[UIColor yellowColor];
myLabel2.text=@"World!";


UIView *myView = [[UIView alloc] initWithFrame:CGRectMake(1, 1, 500, 500)];
UIView *myView1 = [[UIView alloc] initWithFrame:CGRectMake(65,50,200,200)];
UIView *myView2= [[UIView alloc] initWithFrame:CGRectMake(65,260,200,200)];

myView1.backgroundColor=[UIColor greenColor];
myView.backgroundColor=[UIColor cyanColor];
myView2.backgroundColor=[UIColor blueColor];



[myView addSubview:myView1];
[myView addSubview:myView2];
[myView2 addSubview:myLabel2];
[myView1 addSubview:myLabel];
[self.window addSubview:myView];
[self.window makeKeyAndVisible];
return YES;
}

感谢您的帮助。

Answer 1

更改此行

myLabel2=[[UILabel alloc] initWithFrame:CGRectMake(50,300,100,100)];

到

myLabel2=[[UILabel alloc] initWithFrame:CGRectMake(50,30,100,100)];

原因是您的label2超出了您的观点

希望这可以帮助你..

Answer 2

“实际上你的标签已被绘制到myView2的视图区域之外。”

myView2的宽度和高度为200,200 myLabel2的y位置为300，超过了superView（myView2）的高度。 :)。

myLabel2是在myView2框架之外绘制的。始终y视图的位置相对于其超视图。

标签没有打印到ios模拟器目标c

2 个答案: