从superview中删除并启用用户交互

Question

我正在做一些自定义动画来在一个方法中改变视图。我已经使用[UIView setAnimationDidStopSelector:@selector(removeFromSuperview)]从superView中删除了"fromView“，但我还想在动画结束后启用用户交互。

下面是我的代码：

-(void) switchFrom:(UIViewController*) fromViewController To:(UIViewController*) toViewController usingAnimation:(int) animation{
    UIView *fromView = fromViewController.view;
    UIView *toView = toViewController.view;
    /*************** SET ALL DEFAULT TRANSITION SETTINGS ***************/
    // Get the current view frame, width and height
    CGRect pageFrame = fromView.frame;
    CGFloat pageWidth = pageFrame.size.width;
    
    // Create the animation
    [UIView beginAnimations:nil context:nil];
    
    // Create the delegate, so the "fromView" is removed after the transition
    [UIView setAnimationDelegate: fromView];
    [UIView setAnimationDidStopSelector:@selector(removeFromSuperview)];
    
    // Set the transition duration
    [UIView setAnimationDuration: 0.4];

    /*************** IT DOESN'T WORK AT ALL ***************/
    [toView setUserInteractionEnabled:NO];
    [UIView setAnimationDelegate: toView];
    [UIView setAnimationDidStopSelector:@selector(setUserInteractionEnabled:)];
    [toView setUserInteractionEnabled:YES];

    // Add the "toView" as subview of "fromView" superview
    [fromView.superview addSubview:toView];
    switch (animation) {
        case AnimationPushFromRigh:{
            // Position the "toView" to the right corner of the page            
            toView.frame = CGRectOffset(pageFrame, pageWidth,0);
            
            // Animate the "fromView" to the left corner of the page
            fromView.frame = CGRectOffset(pageFrame, -pageWidth,0);
            
            // Animate the "toView" to the center of the page
            toView.frame = pageFrame;
            
            // Animate the "fromView" alpha
            fromView.alpha = 0;
            
            // Set and animate the "toView" alpha
            toView.alpha = 0;
            toView.alpha = 1;

            // Commit the animation
            [UIView commitAnimations];
        }
        .
        .
        .

你知道如何在setAnimationDidStopSelector中调用这两个方法并让它们协同工作吗？

编辑1

尝试像这样的@safecase代码，替换这个注释代码块：

/*************** IT DOESN'T WORK AT ALL ***************
[toView setUserInteractionEnabled:NO];
[UIView setAnimationDelegate: toView];
[UIView setAnimationDidStopSelector:@selector(setUserInteractionEnabled:)];
[toView setUserInteractionEnabled:YES];
*************** IT DOESN'T WORK AT ALL ***************/
// Remove the interaction
[toView setUserInteractionEnabled:NO];
[fromView setUserInteractionEnabled:NO];
// Create the animation
[UIView animateWithDuration:0.4 animations:^{
    [fromView performSelector:@selector(removeFromSuperview)];
    }
    completion:^(BOOL finished){
        [UIView animateWithDuration:0.4 
        animations:^{ 
            C6Log(@"finished");
            [toView performSelector: @selector(setUserInteractionEnabled:)];
        }];
    }];

删除"toView“而不是删除"fromView”:(在动画过程中，按钮将继续交互

Answer 1

我最终为UIView…创建了一个类别扩展它终于成功了！

UIView+Animated.h代码

#import <UIKit/UIKit.h>

@interface UIView (Animated)

- (void) finishedAnimation;

@end

UIView+Animated.m代码

#import "UIView+Animated.h"

@implementation UIView (Animated)

- (void) finishedAnimation{
    C6Log(@"FinishedAnimation!");
    [self removeFromSuperview];
    [[UIApplication sharedApplication] endIgnoringInteractionEvents];
}

@end

然后，我#在我的协调控制器中导入了这个扩展：

C6CoordinatingController.h部分代码

#import "UIView+Animated.h"

并在setAnimationDidStopSelector中调用选择器：

C6CoordinatingController.m部分代码

// Create the delegate, so the "fromView" is removed after the transition
[UIView setAnimationDelegate: fromView];

// Ignore interaction events during the animation
[[UIApplication sharedApplication] beginIgnoringInteractionEvents];

// Set the transition duration
[UIView setAnimationDuration: 0.4];

// Call UIView+Animated "finishedAnimation" method when animation stops
[UIView setAnimationDidStopSelector:@selector(finishedAnimation)];

所以，我最终使用了@jaydee3和@芒迪的概念，它就像一个护身符！

谢谢你们！

Answer 2

你知道beginIgnoringInteractionEvents和endIgnoringInteractionEvents吗？通常，如果您不想在动画过程中使用任何userInteraction，则可以使用它们。

无论如何，你仍然需要正确的回调来触发它们。

Answer 3

您需要定义自己的方法，例如remove:，并将其作为选择器传递。在该方法中，只需使用传递的UIView将其移除。

-(void)remove:(id)sender {
   UIView *v = (UIView*)sender;
   [v removeFromSuperview];
}