objective-c - 从 super View 中删除并启用用户交互

Question

我正在做一些自定义动画以通过一种方法更改 View 。我已经使用 [UIView setAnimationDidStopSelector:@selector(removeFromSuperview)] 从 superView 中删除了“fromView” ，但我也想在动画结束后启用用户交互。
这是我的代码:

-(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];
        }
        .
        .
        .

知道如何在 setAnimationDidStopSelector 中调用这两种方法并真正让他们一起工作？
编辑 1
尝试了这样的 @safecase 代码，替换了这个注释 block :

/*************** 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:)];
        }];
    }];

删除了“toView”而不是删除了“fromView”:(
按钮在动画期间继续交互

Answer 1

你知道吗beginIgnoringInteractionEvents和 endIgnoringInteractionEvents ?
通常，如果您在动画期间不想要任何 userInteraction，您会使用它们。

无论如何，您仍然需要正确的回调来触发它们。