在iOS 8中，搜索栏已经越界了。不过，它在iOS 7中运行良好

我有自定义搜索栏。每当我在iOS 8中启动时，它都无法正常运行。我也张贴代码

CGRect searchBarFrame = CGRectMake(-10.0, 0.0, 
  self.navigationController.navigationBar.frame.size.width+20,
  self.navigationController.navigationBar.frame.size.height);

if(kEnableScanFunctionality)
{
    //searchBarFrame.origin.x += 60; //60 is Left BarButtonItem width
    searchBarFrame.size.width = searchBarFrame.size.width - 60.0f;
}

searchBar = [[UISearchBar alloc] initWithFrame:searchBarFrame];
searchBar.autoresizingMask = UIViewAutoresizingFlexibleWidth;
searchBar.backgroundImage = [self setSeachBarBackgroudImage];
searchBar.placeholder = NSLocalizedString(@"SearchBar_Placeholder",@"Search");

//This code is used to remove 1 pixel height imageView
if ([[UIDevice currentDevice].systemVersion floatValue] < 7.0f)
{
    [[searchBar.subviews objectAtIndex:0] removeFromSuperview];
}
UIView *searchBarView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, self.navigationController.navigationBar.frame.size.width, self.navigationController.navigationBar.frame.size.height)];
searchBarView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
[searchBarView setBackgroundColor:[UIColor clearColor]];
searchBar.delegate = self;

//custom cancel button
NSDictionary *attributes = nil;
UIBarButtonItem *cancelBtn = [UIBarButtonItem appearanceWhenContainedIn:[UISearchBar class], nil];

UIImage *cancelImage = nil;
if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7.0)
{
    cancelImage = [UIImage imageNamed:@"cancelButton.png"];
    attributes = [NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor], UITextAttributeTextColor,[UIFont fontWithName:@"HelveticaNeue" size:14.0f], UITextAttributeFont,nil];
}
else
{
    cancelImage = [[UIImage imageNamed:@"cancelButton.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal];
    attributes = [NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor], NSForegroundColorAttributeName,[UIFont fontWithName:@"HelveticaNeue" size:14.0f], NSFontAttributeName,nil];
}

[cancelBtn setBackgroundImage:cancelImage forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
[cancelBtn setTitleTextAttributes:attributes forState:UIControlStateNormal];
[cancelBtn setTitleTextAttributes:attributes forState:UIControlStateHighlighted];

//[cancelBtn setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys: [UIColor whiteColor],  UITextAttributeTextColor,nil] forState:UIControlStateHighlighted];

[searchBarView addSubview:searchBar];
self.navigationItem.titleView = searchBarView;



if(kEnableScanFunctionality)
{
    //searchBarFrame.origin.x += 60; //60 is Left BarButtonItem width
    searchBarFrame.size.width = searchBarFrame.size.width - 60.0f;
}

searchBar = [[UISearchBar alloc] initWithFrame:searchBarFrame];
searchBar.autoresizingMask = UIViewAutoresizingFlexibleWidth;

searchBar.backgroundImage = [self setSeachBarBackgroudImage];

searchBar.placeholder = NSLocalizedString(@"SearchBar_Placeholder",@"Search");

//This code is used to remove 1 pixel height imageView
if ([[UIDevice currentDevice].systemVersion floatValue] < 7.0f)
{
    [[searchBar.subviews objectAtIndex:0] removeFromSuperview];
}
UIView *searchBarView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, self.navigationController.navigationBar.frame.size.width, self.navigationController.navigationBar.frame.size.height)];
searchBarView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
[searchBarView setBackgroundColor:[UIColor clearColor]];
searchBar.delegate = self;

//custom cancel button
NSDictionary *attributes = nil;
UIBarButtonItem *cancelBtn = [UIBarButtonItem appearanceWhenContainedIn:[UISearchBar class], nil];

UIImage *cancelImage = nil;
if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7.0)
{
    cancelImage = [UIImage imageNamed:@"cancelButton.png"];
    attributes = [NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor], UITextAttributeTextColor,[UIFont fontWithName:@"HelveticaNeue" size:14.0f], UITextAttributeFont,nil];
}
else
{
    cancelImage = [[UIImage imageNamed:@"cancelButton.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal];
    attributes = [NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor], NSForegroundColorAttributeName,[UIFont fontWithName:@"HelveticaNeue" size:14.0f], NSFontAttributeName,nil];
}

[cancelBtn setBackgroundImage:cancelImage forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
[cancelBtn setTitleTextAttributes:attributes forState:UIControlStateNormal];
[cancelBtn setTitleTextAttributes:attributes forState:UIControlStateHighlighted];

//[cancelBtn setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys: [UIColor whiteColor],  UITextAttributeTextColor,nil] forState:UIControlStateHighlighted];

[searchBarView addSubview:searchBar];
self.navigationItem.titleView = searchBarView;

CGRect searchBarFrame=CGRectMake（-10.0,0.0，
self.navigationController.navigationBar.frame.size.width+20，
self.navigationController.navigationBar.frame.size.height）；
if（可启用扫描功能）
{
//searchBarFrame.origin.x+=60；//60为左BarButtonItem宽度
searchBarFrame.size.width=searchBarFrame.size.width-60.0f；
}
searchBar=[[UISearchBar alloc]initWithFrame:searchBarFrame]；
searchBar.autoresizingMask=uiviewsautoresizingflexiblewidth；
searchBar.backgroundImage=[self-seteAchBarBackgroundImage]；
searchBar.placeholder=NSLocalizedString（@“searchBar_placeholder”，@“Search”）；
//此代码用于删除1像素高度的imageView
如果（[[UIDevice currentDevice].systemVersion floatValue]<7.0f）
{
[[searchBar.subviews objectAtIndex:0]从SuperView移除]；
}
UIView*searchBarView=[[UIView alloc]initWithFrame:CGRectMake（0.0,0.0，self.navigationController.navigationBar.frame.size.width，self.navigationController.navigationBar.frame.size.height）]；
searchBarView.autoresizingMask=UIViewAutoresizingFlexibleWidth；
[searchBarView setBackgroundColor:[UIColor clearColor]]；
searchBar.delegate=self；
//自定义取消按钮
NSDictionary*属性=nil；
UIBarButtonItem*cancelBtn=[UIBarButtonItem Appearancewhen contained in:[UISearchBar类]，nil]；
UIImage*cancelImage=nil；
如果（[[[UIDevice currentDevice]系统版本]浮点值]<7.0）
{
cancelImage=[UIImage ImageName:@“cancelButton.png”]；
attributes=[NSDictionary Dictionary WithObjectsAndKeys:[UIColor whiteColor]，UITextAttributeTextColor，[UIFont fontWithName:@“HelveticaNeue”大小：14.0f]，UITextAttributeFont，无]；
}
其他的
{
cancelImage=[[UIImage ImageName:@“cancelButton.png”]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]；
attributes=[NSDictionary Dictionary WithObjectsandKeys:[UIColor whiteColor]，NSForegroundColorAttributeName，[UIFont fontWithName:@“Helveticanue”大小：14.0f]，NSFontAttributeName，无]；
}
[cancelBtn setBackgroundImage:cancelImage for状态：UIControlStateNormal barMetrics:UIBarMetricsDefault]；
[cancelBtn setTitleTextAttributes:状态的属性：UIControlStateNormal]；
[cancelBtn setTitleTextAttributes:状态的属性：uicontrol状态高亮显示]；
//[cancelBtn setTitleTextAttributes:[NSDictionary Dictionary Dictionary WithObjectsAndKeys:[UIColor whiteColor]，UITextAttributeTextColor，nil]用于状态：UIControlStateHighlighted]；
[搜索栏视图添加子视图：搜索栏]；
self.navigationItem.titleView=searchBarView；
if（可启用扫描功能）
{
//searchBarFrame.origin.x+=60；//60为左BarButtonItem宽度
searchBarFrame.size.width=searchBarFrame.size.width-60.0f；
}
searchBar=[[UISearchBar alloc]initWithFrame:searchBarFrame]；
searchBar.autoresizingMask=uiviewsautoresizingflexiblewidth；
searchBar.backgroundImage=[self-seteAchBarBackgroundImage]；
searchBar.placeholder=NSLocalizedString（@“searchBar_placeholder”，@“Search”）；
//此代码用于删除1像素高度的imageView
如果（[[UIDevice currentDevice].systemVersion floatValue]<7.0f）
{
[[searchBar.subviews objectAtIndex:0]从SuperView移除]；
}
UIView*searchBarView=[[UIView alloc]initWithFrame:CGRectMake（0.0,0.0，self.navigationController.navigationBar.frame.size.width，self.navigationController.navigationBar.frame.size.height）]；
searchBarView.autoresizingMask=UIViewAutoresizingFlexibleWidth；
[searchBarView setBackgroundColor:[UIColor clearColor]]；
searchBar.delegate=self；
//自定义取消按钮
NSDictionary*属性=nil；
UIBarButtonItem*cancelBtn=[UIBarButtonItem Appearancewhen contained in:[UISearchBar类]，nil]；
UIImage*cancelImage=nil；
如果（[[[UIDevice currentDevice]系统版本]浮点值]<7.0）
{
cancelImage=[UIImage ImageName:@“cancelButton.png”]；
attributes=[NSDictionary Dictionary WithObjectsAndKeys:[UIColor whiteColor]，UITextAttributeTextColor，[UIFont fontWithName:@“HelveticaNeue”大小：14.0f]，UITextAttributeFont，无]；
}
其他的
{
cancelImage=[[UIImage ImageName:@“cancelButton.png”]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]；
attributes=[NSDictionary Dictionary WithObjectsandKeys:[UIColor whiteColor]，NSForegroundColorAttributeName，[UIFont fontWithName:@“Helveticanue”大小：14.0f]，NSFontAttributeName，无]；
}
[cancelBtn setBackgroundImage:cancelImage for状态：UIControlStateNormal barMetrics:UIBarMetricsDefault]；
[cancelBtn setTitleTextAttributes:状态的属性：UIControlStateNormal]；
[cancelBtn setTitleTextAttributes:状态的属性：uicontrol状态高亮显示]；
//[cancelBtn setTitleTextAttributes:[NSDictionary Dictionary Dictionary WithObjectsAndKeys:[UIColor whiteColor]，UITextAttributeTextColor，nil]用于状态：UIControlStateHighlighted]；
[搜索栏视图添加子视图：搜索栏]；
self.navigationItem.titleView=searchBarView；

如何克服这个问题