Question

这是previous question的后续（Michael Frederick精心解决）。

我目前正在iOS5设备和iOS4设备之间进行调试。基本上我有一个UIImage，它动画滑动以指示用户滑动以继续。动画代码如下：

[UIView animateWithDuration:1.0 animations:^ {
self.finger.alpha = 1.0; 
}completion:^(BOOL finished) {
CGAffineTransform originalTransform = self.finger.transform;
[UIView animateWithDuration:1.0 delay:0.0 options:UIViewAnimationCurveEaseInOut animations:^ {

    self.finger.transform = CGAffineTransformMakeTranslation(-200, 0);
    self.finger.alpha = 0.0;

    }completion:^(BOOL finished) {

        self.finger.transform = originalTransform;
        NSTimer *timer = [NSTimer timerWithTimeInterval:1.0 target:self selector:@selector(repeatSwipeAnimation1) userInfo:nil repeats:YES];
        self.swipeTimerForFinger1 = timer;
        NSRunLoop *runLoop = [NSRunLoop currentRunLoop];
        [runLoop addTimer:self.swipeTimerForFinger1 forMode:NSDefaultRunLoopMode];
        [self.swipeTimerForFinger1 fire];


        }];

    }];

和计时器选择器：

-(void)repeatSwipeAnimation1 {
    [UIView animateWithDuration:1.0 delay:0.0 options:UIViewAnimationCurveEaseIn animations:^ {
    self.finger.alpha = 1.0;
}completion:^(BOOL finished) {
    CGAffineTransform originalTransform = self.finger.transform;
    [UIView animateWithDuration:1.0 delay:0.0 options:UIViewAnimationCurveEaseInOut animations:^ {
        self.finger.transform = CGAffineTransformMakeTranslation(-200, 0);
        self.finger.alpha = 0.0;
    }completion:^(BOOL finished) {
        self.finger.transform = originalTransform;

    }];
}];
}

这完全没问题。但是，在iOS4上，滑动手势似乎被禁用;我无法刷卡继续，因为我能够在iOS5上。我唯一的理论是，在主线程上运行定时器会以某种方式禁用手势识别器（我认为这也是主线程上的触摸感应）。我唯一的问题是我试图将这个动画放在后台，如下所示：

[UIView animateWithDuration:1.0 animations:^ {
            self.finger.alpha = 1.0; 
        }completion:^(BOOL finished) {
               CGAffineTransform originalTransform = self.finger.transform;
            [UIView animateWithDuration:1.0 delay:0.0 options:UIViewAnimationCurveEaseInOut animations:^ {

                self.finger.transform = CGAffineTransformMakeTranslation(-200, 0);
                self.finger.alpha = 0.0;

            }completion:^(BOOL finished) {

                self.finger.transform = originalTransform;

                 [NSThread detachNewThreadSelector:@selector(goToNewThread) toTarget:self withObject:nil];                    

            }];

        }];

和新线程选择器：

-(void)goToNewThread {

     NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

    NSTimer *timer = [NSTimer timerWithTimeInterval:1.0 target:self selector:@selector(repeatSwipeAnimation1) userInfo:nil repeats:YES];
    self.swipeTimerForFinger1 = timer;
    [[NSRunLoop currentRunLoop] addTimer:self.swipeTimerForFinger1 forMode:NSDefaultRunLoopMode];
    [[NSRunLoop currentRunLoop] run];
    [self.swipeTimerForFinger1 fire];


    [pool release];


}

动画已到位，但又一次，它似乎禁用任何滑动手势识别。我仔细考虑了SO，我的O'Reilly材料和Apple文档，但未能找到解决方案。谢谢你的时间。

Answer 1

要使形式脱离正轨;您需要将UIViewAnimationOptionAllowUserInteraction添加到动画块中的选项。

回答您的评论问题。是的，您可以轻松使用多个动画选项。您通常使用按位或运算符“|”，如下所示：

[UIView animateWithDuration:1.0 delay:0.0 options:UIViewAnimationCurveEaseInOut|UIViewAnimationOptionAllowUserInteraction animations...

Answer 2

NJones有正确的答案。我只需要在UiViewAnimationOptionAllowUserInteraction代码的选项下添加[UIView animationWithDuration...]。

在iOS4中，运行带有NSRunLoop的NSTimer会禁用触摸/手势输入

2 个答案: