在做动画的控件不触发手势事件问题及解决方案

原创

拔山河 2022-08-18 10:40:52 博主文章分类：ios ©著作权

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1.首先排除表格的父试图是否能交互（userInteractionEnabled）；
2.其次排除表格是否能交互（userInteractionEnabled）；
3.再次排查表格是否被其它透明可交互控件遮盖（Xcode强大的多视图立体分层显示View UI Herarchy）。
4.是否表格超过父试图的范围（Xcode强大的多视图立体分层显示View UI Herarchy）。
5.若以上都没有问题，那么很可能是你的表格的父试图设置了手势，手势的优先级高于表格点击事件。在容器页面（一个容器包含多个控制器页面）更容易出现该问题。
首先设置动画的可交互属性：UIViewAnimationOptionAllowUserInteraction或UIViewKeyframeAnimationOptionAllowUserInteraction。removedOnCompletion设置为NO

    [UIView beginAnimations:@"Marquee" context:NULL];
    //动画时长
    [UIView setAnimationDuration:2.0];
    //动画节奏
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut|UIViewAnimationOptionAllowUserInteraction];
    //重复次数
    [UIView setAnimationRepeatCount:1];

    self.decribeImageView.alpha = 1.0;
    self.describeTitleLabel.alpha = 1.0;
    [UIView animateKeyframesWithDuration: 5.0 delay: 0 options: UIViewKeyframeAnimationOptionCalculationModeLinear|UIViewKeyframeAnimationOptionAllowUserInteraction animations: ^{
        self.decribeImageView.frame = CGRectMake(self.decribeImageViewEdge+FULL_WIDTH, self.decribeImageViewTop, SCREEN_WIDTH -self.decribeImageViewEdge*2, self.decribeImageViewHeight*FULL_WIDTH/375);
        [UIView addKeyframeWithRelativeStartTime: 0 relativeDuration: 1.0/(5*4) animations: ^{
            self.decribeImageView.frame = CGRectMake(self.decribeImageViewEdge, self.decribeImageViewTop, SCREEN_WIDTH -self.decribeImageViewEdge*2, self.decribeImageViewHeight*FULL_WIDTH/375);
        }];

        [UIView addKeyframeWithRelativeStartTime: (1 - 1.0/(5*4) - 0.001) relativeDuration: 1.0/(5*4) animations: ^{
            self.decribeImageView.frame = CGRectMake(-self.decribeImageViewEdge-FULL_WIDTH, self.decribeImageViewTop, SCREEN_WIDTH -self.decribeImageViewEdge*2, self.decribeImageViewHeight*FULL_WIDTH/375);
        }];
        
        [UIView addKeyframeWithRelativeStartTime: (1 - 0.001) relativeDuration:0.001 animations: ^{
            self.decribeImageView.alpha = 0;
            self.describeTitleLabel.alpha = 0;
        }];
    } completion:^(BOOL finished) {
        [self removeFromSuperview];
    }];
    CAAnimationGroup *group = [[CAAnimationGroup alloc] init];
    
    CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"transform.scale"];
    animation.values = @[@0.0, @1.0, @1.0];
    animation.keyTimes = @[[NSNumber numberWithFloat:0.0], [NSNumber numberWithFloat:0.5], [NSNumber numberWithFloat:1.0]];
    
    CAKeyframeAnimation * opacityAnimation = [CAKeyframeAnimation animation];
    opacityAnimation.keyPath = @"opacity";
    opacityAnimation.values = @[@0.0, @1.0];
    group.animations = @[animation, opacityAnimation];
    group.duration = 2.0;
    group.delegate = self;
    group.repeatCount = 1.0;
    
    group.removedOnCompletion = NO;
    group.fillMode = kCAFillModeForwards;
    group.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
    [self.diceAnimatedImageView.layer addAnimation:group forKey:@"diceAnimatedImageViewAnimation"];