如何在视图上创建多个视图

Question

我有2个课程

1. class view1。（来自基于视图的应用程序的创建项目背景中的灰色）
2. class view2。（来自view1，view2，view3和view4的add file uiviewcontroller子类）

在类view1中创建4 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)

但在运行我创建的view2时没有出现;

我怎样才能让它出现。

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

view2 http://postimage.org/image/2mqj0gnj8/

谢谢

Answer 1

现在您只需将该视图分配给变量，以使视图可见，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中并使其可见。

Answer 2

以下内容将出现在viewDidLoad中:(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设置在欲望的位置。对其他3个观点也一样......

修改

- (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];

}