iPhone 上实现页面循环滚动

核心提示：{UIView* pView = [ary objectAtIndex:i];// 0x12345691 这个是我在增加 pView 到 scrollview 前给 pView 做的标记，用来区分 scrollview 内部的 viewif(pView.hidden == NO && 0x12345691 == pVi

{

UIView* pView = [ary objectAtIndex:i];

// 0x12345691 这个是我在增加 pView 到 scrollview 前给 pView 做的标记。用来区分 scrollview 内部的 view

if(pView.hidden == NO && 0x12345691 == pView.tag)

{

[aryOrderd addObject:pView];

// NSLog(@"初开始化数组 把pView=%d加入 %d ",pView, i);

// NSLog(@"pView.center.x=%f ",pView.center.x);

}

}

int aryOrdredSize = [aryOrderd count];

NSArray* aryTemp = [[NSArray alloc] initWithArray:aryOrderd];

//排序

for(i=0;i< p>

{

UIView* pView = [aryTemp objectAtIndex:i];

CGRect rccc = pView.frame;

float centerX = CGRectGetMidX(rccc);

int pageIndex = ceil(centerX/perWidth);

if(pView.hidden == NO && 0x12345691 == pView.tag)

{

if( pageIndex <= 0 || pageIndex > aryOrdredSize )

{

// NSLog(@"error calucate of page index");

int a=0;a=1/a;

}

// NSLog(@"排序中 把pView=%d插入 %d 位置",pView, pageIndex-1);

[aryOrderd replaceObjectAtIndex:(pageIndex-1) withObject:pView];

}

}

[aryTemp release];

//排完后开始整体挪动位置

if(x < minStart)

{

NSLog(@"-----------------------need left round");

//头位置放到最后，其他位置左移

for (i=0; i<>

{

UIView* pView = [aryOrderd objectAtIndex:i];

if(i==(aryOrdredSize-1))

{

CGPoint centerPt = pView.center;

centerPt.x = perWidth/2;

pView.center = centerPt;

}

else

{

CGPoint centerPt = pView.center;

centerPt.x += perWidth;