iphone – CALayerInvalidGeometry’,原因：’CALayer边界包含Na

CALayerInvalidGeometry’，原因：’CALayer bounds包含NaN：[0 0;南南]

基本上我在这里是一个视图，使图像褪色和缩放??。我最近决定在UIView动画中使用CGAffineTransformScale来改变我的代码，而不是每次定时器打勾时缩放一切。这样使用的方式更少的处理能力。

但是无论我有什么顺序，照片都会在第19个之后崩溃。它所涉及的定位坐标数组似乎并不是一个问题，因为它只有6个长度，并在它达到它的长度后循环。所以出于某些原因，由于我已经实现了这个动画代码，它给了我那个崩溃。任何人都知道为什么

这是我开始崩溃以来发生了变化的部分：

-(void) onTimer{

if(scaleTimer_A==5){

    imageView_A.image = [UIImage imageNamed:[attractList_A objectAtIndex:imageIndex_A]];

    imageView_A.frame = CGRectMake(300,200,3.86,3.86);

    imageView_A.center = CGPointMake(attractLocs_x_A[attractLocs_A_index],attractLocs_y_A[attractLocs_A_index]);



    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:2];
    imageView_A.alpha = 1;
    imageView_A.transform = CGAffineTransformScale(imageView_A.transform,100,100);
    [UIView commitAnimations]; 
}

if(scaleTimer_A==10){

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:.75];
    imageView_A.alpha = 0;
    imageView_A.transform = CGAffineTransformScale(imageView_A.transform,1.2,1.2);
    [UIView commitAnimations]; 

    scaleTimer_A=0;

    imageIndex_A+=1;

    if(imageIndex_A==imageIndex_A_size){
        imageIndex_A=0;
    }

    attractLocs_A_index+=1;

    if(attractLocs_A_index==attractLocs_A_SIZE){
        NSLog(@"Back to zero A");
        attractLocs_A_index=0;
    }
    NSLog(@"Image A =%@",[attractList_A objectAtIndex:imageIndex_A]);
}

scaleTimer_A+=1;}

编辑：

下面是我如何使用CGAffineTransformIdentity在上面的代码中没有崩溃的问题。

-(void) onTimer{

if(scaleTimer_A==5){

    imageView_A.image = [UIImage imageNamed:[attractList_A objectAtIndex:imageIndex_A]];

    imageView_A.transform = CGAffineTransformIdentity;

    imageView_A.center = CGPointMake(attractLocs_x_A[attractLocs_A_index],attractLocs_y_A[attractLocs_A_index]);



    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:2];
    imageView_A.alpha = 1;
    imageView_A.transform = CGAffineTransformScale(CGAffineTransformIdentity,100);
    [UIView commitAnimations]; 
}

if(scaleTimer_A==10){

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:.75];
    imageView_A.alpha = 0;
    imageView_A.transform = CGAffineTransformScale(CGAffineTransformIdentity,120,120);
    [UIView commitAnimations]; 

    scaleTimer_A=0;

    imageIndex_A+=1;

    if(imageIndex_A==imageIndex_A_size){
        imageIndex_A=0;
    }

    attractLocs_A_index+=1;

    if(attractLocs_A_index==attractLocs_A_SIZE){
        NSLog(@"Back to zero A");
        attractLocs_A_index=0;
    }
    NSLog(@"Image A =%@",[attractList_A objectAtIndex:imageIndex_A]);
}

scaleTimer_A+=1;}