带有数组的uiimageView动画问题

Question

这是我的代码：

-(void) createNewImage {


UIImage * image = [UIImage imageNamed:@"abouffer_03.png"];
imageView = [[UIImageView alloc] initWithImage:image];

[imageView setCenter:[self randomPointSquare]];

 [imageViewArray addObject:imageView];

[[self view] addSubview:imageView];

[imageView release];


}



-(void)moveTheImage{
for(int i=0; i< [imageViewArray count];i++){
    UIImageView *imageView = [imageViewArray objectAtIndex:i];
    imageView.center = CGPointMake(imageView.center.x + X, imageView.center.y + Y);
}



}



- (void)viewDidLoad {
[super viewDidLoad];

[NSTimer scheduledTimerWithTimeInterval:4 target:self selector:@selector(onTimer) userInfo:nil repeats:YES];
displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(onTimer2)];
[displayLink setFrameInterval:1];
[displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];


imageViewArray = [[NSMutableArray alloc]init];
}

我的问题是，每四秒创建一个新的“imageView”，并且在四秒钟内移动，然后创建一个新的“imageView”并移动到另一个方向，之前的“imageView”跟随此最后一个它们向同一方向移动，这种情况每四秒发生一次。我该怎么解决这个问题？

我认为问题来自阵列。