Ios4 如何在ipad中查找最后一个视图宽度

我正在mainview中添加视图。如何查找上次插入的视图宽度

  NSArray *noPotions = [NSArray arrayWithObjects:@"1",@"2",@"3",@"4", nil];
int list = [noPotions count];

int lastPosition = 10;

int widthValue = 100;

for (int i = 0; i < list ; i++) {
    UIView  *newView = [[UIView alloc]initWithFrame:CGRectMake(lastPosition, 10, widthValue, 60)];
    [newView.layer setBorderColor:[[UIColor blueColor] CGColor]];
    [self.view addSubview:newView];
    lastPosition = newView.bounds.size.width + 20;
    newView.layer.borderWidth = 4;

    [newView release];

NSArray*noPotions=[NSArray数组，其对象为：@“1”，“2”，“3”，“4”，无]；
int list=[noPotions count]；
int lastPosition=10；
int宽度值=100；
对于（int i=0；i

在此代码中，最后一个位置始终为120。

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有人能帮我吗？

你可以先给FOR循环中的UIView添加标签

for (int i = 0; i < list ; i++) 
{
     UIView  *newView = [[UIView alloc]initWithFrame:CGRectMake(lastPosition, 10, widthValue, 60)];
     newView.tag = i;
     [newView.layer setBorderColor:[[UIColor blueColor] CGColor]];
     [self.view addSubview:newView];
     lastPosition = newView.bounds.size.width + 20;
     newView.layer.borderWidth = 4;

     [newView release];
}

UIView* latestView = [self.view viewWithTag:[list count]-1];