在iOS 7中动态更改UIViewController的视图

我有两个自定义视图类（

CustomView\u A，CustomView\u B

）是从

UIView

派生的。我有

UIViewController

，它应该能够在运行时在视图之间切换

到目前为止，我所做的是。。在故事板中，我使用

CustomView\u A

类作为视图类

@interface MyViewController: UIViewController

@property (nonatomic, weak) CustomView_A *customView_A;

现在我有了第二个

CustomView\u B

类，我想在运行时将

MyViewController

的视图更改为

CustomView\u B

我该怎么做？提前感谢..

试试这个：

- (IBAction)changeView {
       if (self.customView_A.hidden == YES) {
            self.customView_A.hidden = NO;
            self.customView_B.hidden = YES;
            //You should use a UIView animation here to do this.
       }
       else {
            self.customView_A.hidden = YES;
            self.customView_B.hidden = NO;
            //Same here
       )
}

在

viewDidLoad

中，将视图添加到

CGRectZero

- (void)viewDidLoad {
       self.customView_A = [[CustomView_A alloc]initWithFrame:CGRectZero];
       [self.view addSubview:self.customView_A];
       //do the same with the other custom view
}

如果代码有点错误，很抱歉，我没有使用

Xcode

来键入此代码。

请尝试以下操作：

- (IBAction)changeView {
       if (self.customView_A.hidden == YES) {
            self.customView_A.hidden = NO;
            self.customView_B.hidden = YES;
            //You should use a UIView animation here to do this.
       }
       else {
            self.customView_A.hidden = YES;
            self.customView_B.hidden = NO;
            //Same here
       )
}

在

viewDidLoad

中，将视图添加到

CGRectZero

- (void)viewDidLoad {
       self.customView_A = [[CustomView_A alloc]initWithFrame:CGRectZero];
       [self.view addSubview:self.customView_A];
       //do the same with the other custom view
}

---

如果代码有点错误，很抱歉，我没有使用

Xcode

来键入此代码。

不要。您所描述的是对UIViewController的一个基本误解。一旦UIViewController实例拥有一个

视图

，这就是它的

视图

如果需要两个不同的视图，则可以选择：

• 使用两个视图控制器（例如，可以使用模式序列在视图控制器A及其视图的顶部显示视图控制器B及其视图），或

• 使这些视图中至少有一个不属于视图控制器：只需将该视图放在另一个视图的前面，然后再随意将其删除即可

---

不要这样做。您所描述的是对UIViewController的一个基本误解。一旦UIViewController实例拥有一个

视图

，这就是它的

视图

如果需要两个不同的视图，则可以选择：
• 使用两个视图控制器（例如，可以使用模式序列在视图控制器A及其视图的顶部显示视图控制器B及其视图），或

• 使这些视图中至少有一个不属于视图控制器：只需将该视图放在另一个视图的前面，然后再随意将其删除即可

---

好的，这是您想要的代码-
在您的

MyViewController.h

put-

@property (nonatomic, retain) CustomView_A *customView_A;
@property (nonatomic, retain) CustomView_B *customView_B;

-(void)switchView; // to switch the views.

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    self.customView_A = [[CustomView_A alloc]initWithFrame:self.view.frame];
    self.customView_A.backgroundColor = [UIColor redColor];

    UIButton *trigger = [UIButton buttonWithType:UIButtonTypeRoundedRect]; // Just take this button so that your switchView methods will get called on click of this method.
    [trigger setFrame:CGRectMake(10, 10, 50, 30)];
    [trigger setTitle:@"Click" forState:UIControlStateNormal];
    [trigger addTarget:self action:@selector(switchView) forControlEvents:UIControlEventTouchUpInside];
    [self.customView_A addSubview:trigger];

    [self.view addSubview:self.customView_A];

    self.customView_B = [[CustomView_B alloc]initWithFrame:self.view.frame];
    self.customView_B.backgroundColor = [UIColor yellowColor];
    self.customView_B.hidden = YES;
    [self.view addSubview:self.customView_B];
}

- (void)switchView
{

    [UIView animateWithDuration:10 delay:10 options:UIViewAnimationOptionCurveEaseInOut animations:^{
        self.customView_A.hidden = YES;
        self.customView_B.hidden = NO;
    } completion:nil];

}

在您的

MyViewController.m

put-

@property (nonatomic, retain) CustomView_A *customView_A;
@property (nonatomic, retain) CustomView_B *customView_B;

-(void)switchView; // to switch the views.

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    self.customView_A = [[CustomView_A alloc]initWithFrame:self.view.frame];
    self.customView_A.backgroundColor = [UIColor redColor];

    UIButton *trigger = [UIButton buttonWithType:UIButtonTypeRoundedRect]; // Just take this button so that your switchView methods will get called on click of this method.
    [trigger setFrame:CGRectMake(10, 10, 50, 30)];
    [trigger setTitle:@"Click" forState:UIControlStateNormal];
    [trigger addTarget:self action:@selector(switchView) forControlEvents:UIControlEventTouchUpInside];
    [self.customView_A addSubview:trigger];

    [self.view addSubview:self.customView_A];

    self.customView_B = [[CustomView_B alloc]initWithFrame:self.view.frame];
    self.customView_B.backgroundColor = [UIColor yellowColor];
    self.customView_B.hidden = YES;
    [self.view addSubview:self.customView_B];
}

- (void)switchView
{

    [UIView animateWithDuration:10 delay:10 options:UIViewAnimationOptionCurveEaseInOut animations:^{
        self.customView_A.hidden = YES;
        self.customView_B.hidden = NO;
    } completion:nil];

}

---

再次切换视图时，请执行相反的操作。
好的，这是您想要的代码-
在您的

MyViewController.h

put-

@property (nonatomic, retain) CustomView_A *customView_A;
@property (nonatomic, retain) CustomView_B *customView_B;

-(void)switchView; // to switch the views.

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    self.customView_A = [[CustomView_A alloc]initWithFrame:self.view.frame];
    self.customView_A.backgroundColor = [UIColor redColor];

    UIButton *trigger = [UIButton buttonWithType:UIButtonTypeRoundedRect]; // Just take this button so that your switchView methods will get called on click of this method.
    [trigger setFrame:CGRectMake(10, 10, 50, 30)];
    [trigger setTitle:@"Click" forState:UIControlStateNormal];
    [trigger addTarget:self action:@selector(switchView) forControlEvents:UIControlEventTouchUpInside];
    [self.customView_A addSubview:trigger];

    [self.view addSubview:self.customView_A];

    self.customView_B = [[CustomView_B alloc]initWithFrame:self.view.frame];
    self.customView_B.backgroundColor = [UIColor yellowColor];
    self.customView_B.hidden = YES;
    [self.view addSubview:self.customView_B];
}

- (void)switchView
{

    [UIView animateWithDuration:10 delay:10 options:UIViewAnimationOptionCurveEaseInOut animations:^{
        self.customView_A.hidden = YES;
        self.customView_B.hidden = NO;
    } completion:nil];

}

在您的

MyViewController.m

put-

@property (nonatomic, retain) CustomView_A *customView_A;
@property (nonatomic, retain) CustomView_B *customView_B;

-(void)switchView; // to switch the views.

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    self.customView_A = [[CustomView_A alloc]initWithFrame:self.view.frame];
    self.customView_A.backgroundColor = [UIColor redColor];

    UIButton *trigger = [UIButton buttonWithType:UIButtonTypeRoundedRect]; // Just take this button so that your switchView methods will get called on click of this method.
    [trigger setFrame:CGRectMake(10, 10, 50, 30)];
    [trigger setTitle:@"Click" forState:UIControlStateNormal];
    [trigger addTarget:self action:@selector(switchView) forControlEvents:UIControlEventTouchUpInside];
    [self.customView_A addSubview:trigger];

    [self.view addSubview:self.customView_A];

    self.customView_B = [[CustomView_B alloc]initWithFrame:self.view.frame];
    self.customView_B.backgroundColor = [UIColor yellowColor];
    self.customView_B.hidden = YES;
    [self.view addSubview:self.customView_B];
}

- (void)switchView
{

    [UIView animateWithDuration:10 delay:10 options:UIViewAnimationOptionCurveEaseInOut animations:^{
        self.customView_A.hidden = YES;
        self.customView_B.hidden = NO;
    } completion:nil];

}

---

再次切换视图时，请执行相反的操作。
u只需使用UIViewAnimation隐藏CustomView\u A并显示CustomView\u B即可！您的CustomView\u A/B是否在Nib/情节提要/代码中？只需将您设置为

self.view=CustomView\u B实例

，您就可以简单地隐藏CustomView\u A并使用UIViewAnimation显示CustomView\u B！您的CustomView\u A/B是否在Nib/情节提要/代码中？只需将您设置为

self.view=CustomView\u B实例

，就很容易了。