转换无法执行两次 [英] Transformation unable to perform twice
本文介绍了转换无法执行两次的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有这个功能，
-(void)transitionstar{
star.hidden = NO;
star2.hidden = NO;
star3.hidden = NO;
star4.hidden = NO;
star5.hidden = NO;
star6.hidden = NO;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.4f];
[UIView animateWithDuration:0.0 animations:^{
CGAffineTransform scale = CGAffineTransformMakeScale(1, 1);
CGAffineTransform rotate = CGAffineTransformMakeRotation(360.0);
CGAffineTransform rotate2 = CGAffineTransformMakeRotation(-360.0);
CGAffineTransform rotate3 = CGAffineTransformMakeRotation(-720.0);
CGAffineTransform rotate4 = CGAffineTransformMakeRotation(720.0);
CGAffineTransform rotate5 = CGAffineTransformMakeRotation(1080.0);
CGAffineTransform rotate6 = CGAffineTransformMakeRotation(-1080.0);
CGAffineTransform translate = CGAffineTransformMakeTranslation(-800, -800);
CGAffineTransform translate2 = CGAffineTransformMakeTranslation(600, -600);
CGAffineTransform translate3 = CGAffineTransformMakeTranslation(400, 400);
CGAffineTransform translate4 = CGAffineTransformMakeTranslation(-200, 200);
CGAffineTransform translate5 = CGAffineTransformMakeTranslation(900, -300);
CGAffineTransform translate6 = CGAffineTransformMakeTranslation(-200, 500);
CGAffineTransform transform = CGAffineTransformConcat(translate, scale);
transform = CGAffineTransformConcat(transform, rotate);
CGAffineTransform transform2 = CGAffineTransformConcat(translate2, scale);
transform2 = CGAffineTransformConcat(transform2, rotate2);
CGAffineTransform transform3 = CGAffineTransformConcat(translate3, scale);
transform3 = CGAffineTransformConcat(transform3, rotate3);
CGAffineTransform transform4 = CGAffineTransformConcat(translate4, scale);
transform4 = CGAffineTransformConcat(transform4, rotate4);
CGAffineTransform transform5 = CGAffineTransformConcat(translate5, scale);
transform5 = CGAffineTransformConcat(transform5, rotate5);
CGAffineTransform transform6 = CGAffineTransformConcat(translate6, scale);
transform6 = CGAffineTransformConcat(transform6, rotate6);
star.transform = transform;
star2.transform = transform2;
star3.transform = transform3;
star4.transform = transform4;
star5.transform = transform5;
star6.transform = transform6;
}
completion:^(BOOL finished){
if (finished) {
star.hidden = YES;
star2.hidden = YES;
star3.hidden = YES;
star4.hidden = YES;
star5.hidden = YES;
star6.hidden = YES;
}
}];
[UIView commitAnimations];
}
当我第一次调用它时，它确实起作用了.
When i call it first time, it did worked.
但是，我在同一视图中再次调用，它无法执行并停留在该视图中.
However, i call again within same view, it cannot perform and stuck there.
隐藏的工作
-过渡无效
-旋转不起作用
-nslog工作
为什么第二次会变成这样?
Why second time will become like this?
更新
if(!positionrepeat)
{
//Display Correct IMAGE;
[isrepeat addObject:[NSNumber numberWithInt:positionvalue]];
//soundeffect = [self createSoundID: @"correct"];
//AudioServicesPlaySystemSound(soundeffect);
[self displayresulttext:@"correct"];
[self.view setNeedsDisplay];
[self transitionstar];
correct++;
completed.text = [NSString stringWithFormat:@"%d", correct];
[self result];
}
这就是我调用该函数的方式.但是，还是一样.
This is how I call the function. However, it still same.
推荐答案
在这段代码中，您更改了转换
in this bit of code your changed the transform
star.transform = transform;
star2.transform = transform2;
star3.transform = transform3;
star4.transform = transform4;
star5.transform = transform5;
star6.transform = transform6;
例如，考虑您将star1初始转换为x， 现在，您需要进行一些转换计算....
for eg consider your having the star1 initial transform is x , now your doing some calculation for transform....
CGAffineTransform rotate = CGAffineTransformMakeRotation(360.0);
CGAffineTransform translate = CGAffineTransformMakeTranslation(-800, -800);
CGAffineTransform transform = CGAffineTransformConcat(translate, scale);
transform = CGAffineTransformConcat(transform, rotate);
然后
您将星号x的变换更改为y ...
your changed the transform of star x to y...
star.transform = transform;//say this is y
现在您的恒星变换将变得正常...
now your star transform will become y okay...
再次通过调用来执行此代码，因此您的初始星形变换为y，而等式变换为y，因此不需要，您也看不到任何结果...
again doing this code by call again so again your initial star transform is y and your equating transform to y so no need and u didn't see any of the result...
y = y，所以没有结果....
y=y so no result....
因此需要更改某些逻辑或您想要的逻辑，但这是一个主意...
So need to change some logic like this or some what you want but this is an idea...
第一个变化:您需要存储每颗恒星的变换，因此需要一些变换类型的变量集...
1st change: you need to store the transform of each star so you need some set of variables of type transform...
CGAffineTransform star1Initial,star2Initial,star3Initial,star4Initial,star5Initial,star6Initial;
第二个更改:您需要在加载后的视图中保存星星的初始变换....
2nd change:you need to save the initial transform of stars in the view did load....
star1Initial=star1.transform;
star2Initial=star2.transform;
star3Initial=star3.transform;
star4Initial=star4.transform;
star5Initial=star5.transform;
star6Initial=star6.transform;
-(void)transitionstar{
star1.hidden = NO;
star2.hidden = NO;
star3.hidden = NO;
star4.hidden = NO;
star5.hidden = NO;
star6.hidden = NO;
star1.transform=star1Initial;
star2.transform=star2Initial;
star3.transform=star3Initial;
star4.transform=star4Initial;
star5.transform=star5Initial;
star6.transform=star6Initial;
// [UIView beginAnimations:nil context:NULL];
// [UIView setAnimationDuration:0.4f];
[UIView animateWithDuration:1.0 animations:^{
CGAffineTransform scale = CGAffineTransformMakeScale(1, 1);
CGAffineTransform rotate = CGAffineTransformMakeRotation(360.0);
CGAffineTransform rotate2 = CGAffineTransformMakeRotation(-360.0);
CGAffineTransform rotate3 = CGAffineTransformMakeRotation(-720.0);
CGAffineTransform rotate4 = CGAffineTransformMakeRotation(720.0);
CGAffineTransform rotate5 = CGAffineTransformMakeRotation(1080.0);
CGAffineTransform rotate6 = CGAffineTransformMakeRotation(-1080.0);
CGAffineTransform translate = CGAffineTransformMakeTranslation(-800, -800);
CGAffineTransform translate2 = CGAffineTransformMakeTranslation(600, -600);
CGAffineTransform translate3 = CGAffineTransformMakeTranslation(400, 400);
CGAffineTransform translate4 = CGAffineTransformMakeTranslation(-200, 200);
CGAffineTransform translate5 = CGAffineTransformMakeTranslation(900, -300);
CGAffineTransform translate6 = CGAffineTransformMakeTranslation(-200, 500);
CGAffineTransform transform = CGAffineTransformConcat(translate, scale);
transform = CGAffineTransformConcat(transform, rotate);
CGAffineTransform transform2 = CGAffineTransformConcat(translate2, scale);
transform2 = CGAffineTransformConcat(transform2, rotate2);
CGAffineTransform transform3 = CGAffineTransformConcat(translate3, scale);
transform3 = CGAffineTransformConcat(transform3, rotate3);
CGAffineTransform transform4 = CGAffineTransformConcat(translate4, scale);
transform4 = CGAffineTransformConcat(transform4, rotate4);
CGAffineTransform transform5 = CGAffineTransformConcat(translate5, scale);
transform5 = CGAffineTransformConcat(transform5, rotate5);
CGAffineTransform transform6 = CGAffineTransformConcat(translate6, scale);
transform6 = CGAffineTransformConcat(transform6, rotate6);
star1.transform = transform;
star2.transform = transform2;
star3.transform = transform3;
star4.transform = transform4;
star5.transform = transform5;
star6.transform = transform6;
}
completion:^(BOOL finished){
if (finished) {
star1.hidden = YES;
star2.hidden = YES;
star3.hidden = YES;
star4.hidden = YES;
star5.hidden = YES;
star6.hidden = YES;
}
}];
// [UIView commitAnimations];
}
我希望这会对您有所帮助....
i hope this will help you....
请尝试使用此代码进行旋转动画.....
Hi try this code for spin animation.....
- (void) runSpinAnimationWithDuration:(CGFloat) duration;
{
CABasicAnimation* rotationAnimation;
int rotations=1;
rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
rotationAnimation.toValue = [NSNumber numberWithFloat: M_PI * 2.0 /* full rotation*/ * rotations * duration ];
rotationAnimation.duration = duration;
rotationAnimation.cumulative = YES;
rotationAnimation.repeatCount = 1.0;
rotationAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
这篇关于转换无法执行两次的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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