内部编译器错误：总线错误：10 [英] internal compiler error: Bus error: 10

问题描述

我已经写了code为甩头在屏幕上一个UIImageView动画，不过虽然语法似乎是正确的，我得到一个不起眼的内部编译器错误：总线错误：10 建设的时候。知道为什么吗？

I have written code for an animation that shakes a UIImageView on the screen, but although the syntax seems to be correct, I am getting an obscure "internal compiler error: Bus error: 10" when building. Any idea why?

-(IBAction)shakeCircle{
    int d = 3;
    [UIView animateWithDuration:0.05
    animations:^{myCircle.center = CGPointMake(myCircle.center.x+d, myCircle.center.y-d);}
    completion:^(BOOL finished){
    [UIView animateWithDuration:0.05
    animations:^{myCircle.center = CGPointMake(myCircle.center.x-d, myCircle.center.y+d);}
    completion:^(BOOL finished)
    {
        //but if I comment from here..
        [UIView animateWithDuration:0.05
        animations:^{myCircle.center = CGPointMake(myCircle.center.x+d, myCircle.center.y-d);}
        completion:^(BOOL finished){
        [UIView animateWithDuration:0.05
        animations:^{myCircle.center = CGPointMake(myCircle.center.x-d, myCircle.center.y+d);}
        ];
        }
        ];
        //... to here the code will build.

    }
    ];
    }
    ];
}

请注意，如果我注释掉动画code最后五线，一切正常编译....什么是怎么回事？

Note that if I comment out the last five lines of animation code, everything compiles fine.... What is going on?

我曾尝试切换到不同的编译器，没有工作。我确信，这里有一个 myCircle ，它曾经被称为唯一的一次是当它被声明，并且在该方法！

I have tried switching to different compilers, that didn't work. I made sure that there's just one myCircle and that the only time it ever gets referred to is when it gets declared, and in that method!

推荐答案

下面是通过递归调用函数解决问题一点解决方法。分配到 INTð由撼量，然后

Here's a little workaround that solves the problem through recursive calls to the function. Assign to int d the amount by which to shake, then

int d = 3;
-(IBAction)shakeMyCircle{
    [UIView animateWithDuration:0.05
    animations:^{myCircle.center = CGPointMake(myCircle.center.x+3, myCircle.center.y-3);}
    completion:^(BOOL finished){
        [UIView animateWithDuration:0.05
        animations:^{myCircle.center = CGPointMake(myCircle.center.x-3, myCircle.center.y+3);}
        completion:^(BOOL finished) 
        {   
            d--;
            if(d>0) [self shakemyCircle];
            if(d == 0) d = 3;
        }
        ];
    }
    ];
}

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