如何在一个视图上创建多个视图

Question

我有两个班级

1. view1 类。（从使用基于视图的应用程序创建项目，背景为灰色）
2. view2 类。（来自为 view1、view2、view3 和 view4 添加文件 uiviewcontroller 子类）

在 view1 类中，我创建了 4 个 uiview 变量 v1、v2、v3、v4 并将其链接到视图 1、视图 2、视图 3 和视图 4

在view1的viewdidload中

我的代码

view2 *sub =[[view2 alloc] initWithNibName:@"view2" bundle:nil];
self.v1 = sub.view; (v1,v2,v3,v4 is view that i draw by interface builder on self.view)

但是当我创建的运行view2没有出现；

我怎样才能让它出现。

view1 http://postimage.org/image/2mqhcxb1g/

view2http://postimage.org/image/2mqj0gnj8/

谢谢

Answer 1

现在您只需将该视图分配给一个变量，要使视图可见，您应该执行以下操作：

[self.view addSubView:sub];

这会将视图添加到当前视图并使其可见。

Answer 2

viewDidLoad 中会出现以下内容：（仅适用于 view2）

View2 *view2 = [[View2 alloc]
initWithNibName:@"View2" bundle:nil];

[self.view insertSubview:view2.view atIndex:0];
[view2 release];
[super viewDidLoad];

尝试为此设置框架以使其设置在所需位置。其他 3 个视图也一样...

编辑

- (void)loadView
{
// Create the main view
CGRect appRect = [[UIScreen mainScreen] applicationFrame];
contentView = [[UIView alloc] initWithFrame:appRect];
contentView.backgroundColor = [UIColor whiteColor];

// Provide support for autorotation and resizing
contentView.autoresizesSubviews = YES;
contentView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
self.view = contentView;
[contentView release];

// reset the origin point for subviews. The new origin is 0,0
appRect.origin = CGPointMake(0.0f, 0.0f);
// Add the subviews, each stepped by 32 pixels on each side
UIView *subview = [[UIView alloc] initWithFrame:CGRectInset(appRect, 32.0f, 32.0f)];
subview.backgroundColor = [UIColor lightGrayColor];
[contentView addSubview:subview];
[subview release];

subview = [[UIView alloc] initWithFrame:CGRectInset(appRect, 64.0f, 64.0f)];
subview.backgroundColor = [UIColor darkGrayColor];
[contentView addSubview:subview];
[subview release];

subview = [[UIView alloc] initWithFrame:CGRectInset(appRect, 96.0f, 96.0f)];
subview.backgroundColor = [UIColor blackColor];
[contentView addSubview:subview];
[subview release];

}