Iphone 不'；不工作队列

我有一个问题，我发现自己很难解决，所以我请求你的帮助

在FirstViewController.m中（FVC）

在SVC.h中

......
- (void)blinkPic;
......

在SVC.m中

- (void)viewDidLoad
{
[super viewDidLoad];

 NSOperationQueue *queue = [[NSOperationQueue alloc] init];

 .......
 for (int i = 0; i < _picForDisplay.length; i++) { //picForDisplay can be from 0 to 10

 _forBlink = ......; // number of picture

   NSOperation *operation = [[NSInvocationOperation alloc]
                            initWithTarget:self
                            selector:@selector(blinkPic)
                            object:nil];

   [queue addOperation:operation];
 }
 .......
 }
 - (void)blinkPic
 {
   for (int i = 0; i < 18; i++) {

    if ( (i % 2 ) == 0 ){
        UIImageView *Pic = [self valueForKey:[NSString stringWithFormat:@"Pic%i",         _forBlink]];
        [Pic performSelectorOnMainThread:@selector(setImage:) withObject:[UIImage imageNamed:@"1.png"] waitUntilDone:YES];

    } else {
        UIImageView *Pic = [self valueForKey:[NSString stringWithFormat:@"Pic%i", _forBlink]];
        [Pic performSelectorOnMainThread:@selector(setImage:) withObject:[UIImage imageNamed:@"2.png"] waitUntilDone:YES];
    }

    [NSThread sleepForTimeInterval:0.1f];
  }
 }

-（void）viewDidLoad
{
[超级视图下载]；
NSOperationQueue*队列=[[NSOperationQueue alloc]init]；
.......
对于（int i=0；i<_picForDisplay.length；i++）{//picForDisplay可以是0到10
_forBlink=……；//图片数量
NSOperation*操作=[[NSInvocationOperation alloc]
initWithTarget:self
选择器：@selector（blinkPic）
对象：无]；
[队列添加操作：操作]；
}
.......
}
-（无效）闪烁
{
对于（int i=0；i<18；i++）{
如果（（i%2）==0）{
UIImageView*Pic=[self-valueForKey:[NSString stringWithFormat:@“Pic%i”，用于闪烁]]；
[Pic performSelectorOnMainThread:@selector（setImage:）with object:[UIImage ImageName:@“1.png”]waitUntilDone:是]；
}否则{
UIImageView*Pic=[self-valueForKey:[NSString stringWithFormat:@“Pic%i”，用于闪烁]]；
[Pic performSelectorOnMainThread:@selector（setImage:）with object:[UIImage ImageName:@“2.png”]waitUntilDone:是]；
}
[NSThread sleepForTimeInterval:0.1f]；
}
}

如果我超过1，那么必须创建一些线程，让每个人都使用blinkPic方法，其中具有指定数字的图片（Pic）必须更改为图像的18倍-以闪烁

问题-如果图片1（i=0），则blinkPic方法的性能完全通过，图片“闪烁”

如果有更多图片（i=1或2或3等），则始终对最后一张图片执行blinkPic方法，所有其他图片保持不变。 当图片不止一张时，为什么不对所有图片执行blinkPic方法？ 但是只有最后一个（

for（int i=0；i<\u picForDisplay.length；++i）{//picForDisplay可以是0到10
NSOperation*操作=[[NSInvocationOperation alloc]
initWithTarget:self
选择器：@selector（blinkPic:）
对象：@（i）]；
[队列添加操作：操作]；
}
.......
}
-（无效）blinkPic:（NSNumber*）用于Blink
{
对于（int i=0；i<18；i++）{
如果（（i%2）==0）{
UIImageView*Pic=[self-valueForKey:[NSString stringWithFormat:@“Pic%@”，forBlink]]；
[Pic performSelectorOnMainThread:@selector（setImage:）with object:[UIImage ImageName:@“1.png”]waitUntilDone:是]；
}否则{
UIImageView*Pic=[self-valueForKey:[NSString stringWithFormat:@“Pic%@”，forBlink]]；
[Pic performSelectorOnMainThread:@selector（setImage:）with object:[UIImage ImageName:@“2.png”]waitUntilDone:是]；
}
[NSThread sleepForTimeInterval:0.1f]；
}
}

请格式化您的文本，它很难理解，甚至很难编辑，因为它可能会改变原始含义

- (void)viewDidLoad
{
[super viewDidLoad];

 NSOperationQueue *queue = [[NSOperationQueue alloc] init];

 .......
 for (int i = 0; i < _picForDisplay.length; i++) { //picForDisplay can be from 0 to 10

 _forBlink = ......; // number of picture

   NSOperation *operation = [[NSInvocationOperation alloc]
                            initWithTarget:self
                            selector:@selector(blinkPic)
                            object:nil];

   [queue addOperation:operation];
 }
 .......
 }
 - (void)blinkPic
 {
   for (int i = 0; i < 18; i++) {

    if ( (i % 2 ) == 0 ){
        UIImageView *Pic = [self valueForKey:[NSString stringWithFormat:@"Pic%i",         _forBlink]];
        [Pic performSelectorOnMainThread:@selector(setImage:) withObject:[UIImage imageNamed:@"1.png"] waitUntilDone:YES];

    } else {
        UIImageView *Pic = [self valueForKey:[NSString stringWithFormat:@"Pic%i", _forBlink]];
        [Pic performSelectorOnMainThread:@selector(setImage:) withObject:[UIImage imageNamed:@"2.png"] waitUntilDone:YES];
    }

    [NSThread sleepForTimeInterval:0.1f];
  }
 }

 for (int i = 0; i < _picForDisplay.length; ++i) { //picForDisplay can be from 0 to 10
   NSOperation *operation = [[NSInvocationOperation alloc]
                            initWithTarget:self
                            selector:@selector(blinkPic:)
                            object:@(i)];

   [queue addOperation:operation];
 }
 .......
 }
 - (void)blinkPic:(NSNumber*) forBlink
 {
   for (int i = 0; i < 18; i++) {

    if ( (i % 2 ) == 0 ){
        UIImageView *Pic = [self valueForKey:[NSString stringWithFormat:@"Pic%@", forBlink]];
        [Pic performSelectorOnMainThread:@selector(setImage:) withObject:[UIImage imageNamed:@"1.png"] waitUntilDone:YES];

    } else {
        UIImageView *Pic = [self valueForKey:[NSString stringWithFormat:@"Pic%@", forBlink]];
        [Pic performSelectorOnMainThread:@selector(setImage:) withObject:[UIImage imageNamed:@"2.png"] waitUntilDone:YES];
    }

    [NSThread sleepForTimeInterval:0.1f];
  }
 }