iphone - 在 iPhone 上使用从上到下的幻灯片效果打开视图

Question

我正在为 iPhone 制作一个应用程序，我希望当我触摸一个按钮时，当你从屏幕的顶部到底部触摸时，它会打开一个带有幻灯片效果的视图。该视图与按钮位于同一个 XIB 文件中...提前谢谢

Answer 1

你可以试试这个简单的动画——

UIView *myView = [[UIView alloc] initWithFrame:self.view.frame];
myView.backgroundColor = [UIColor blueColor];
[self.view addSubview:myView];

[myView setFrame:CGRectMake(0, 480, 320, 480)];
[myView setBounds:CGRectMake(0, 0, 320, 480)];

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1.0];
[UIView setAnimationDelegate:self];
[myView setFrame:CGRectMake(0, 0, 320, 480)];
[UIView commitAnimations];

Answer 2

你需要使用下面的代码，你的要求很简单GestureRecognizer

- (void)viewDidLoad
{

    CATransition *animation = [CATransition animation];
    [animation setDelegate:self];   
    [animation setType:kCATransitionFade];
    [animation setDuration:0.5];
    [animation setTimingFunction:[CAMediaTimingFunction functionWithName:
                                  kCAMediaTimingFunctionEaseInEaseOut]];
    [[self.view layer] addAnimation:animation forKey:kAnimationKey];

    UISwipeGestureRecognizer *swipeGesture = [[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(addCustomBottomBar)] autorelease];
    swipeGesture.numberOfTouchesRequired = 1;
    swipeGesture.direction = (UISwipeGestureRecognizerDirectionDown);
    [yourDownViewController.view addGestureRecognizer:swipeGesture];
    UISwipeGestureRecognizer *swipeGestureTop = [[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(addCustomBottomBar)] autorelease];
    swipeGestureTop.numberOfTouchesRequired = 1;
    swipeGestureTop.direction = (UISwipeGestureRecognizerDirectionUp);
    [yourUpViewController.view addGestureRecognizer:swipeGestureTop];
 }

在这里，您只需使用以下addCustomBottomBar方法在此视图控制器上设置框架...

-(void)addCustomBottomBar{

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0.5];
    [UIView setAnimationTransition:UIViewAnimationTransitionNone forView:self.window cache:YES];


    yourUpViewController.view.frame=CGRectMake(0, 430, 320, 70);//here you can also switch two ViewWith some flag otherwise create another method for anotherView....

    [UIView commitAnimations];
}

2.如果你想用按钮点击ViewController动画然后使用下面的代码.....

-(void)btnClicked{

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0.5];
    [UIView setAnimationTransition:UIViewAnimationTransitionNone forView:self.view cache:YES];

    if (yourflag) {

       yourViewController.view.frame=CGRectMake(0, 430, 320, 70);
    }
    else{
        yourflag=YES;
        yourViewController.view.frame=CGRectMake(0, 210, 320, 270);
        [self.view bringSubviewToFront:yourViewController.view];
    }
    [UIView commitAnimations];
}

希望，这对你有帮助..... :)