ios7 UISearchBar

if(IOS7BC){

UIView *topView =
VTOSearchBar.subviews[0];

UIButton *cancelButton;

for (UIView *subView
in topView.subviews) {

if([subView
isKindOfClass:[NSClassFromString(@"UINavigationButton")
class]]) {
cancelButton = (UIButton*)subView;

[cancelButton setBackgroundImage:[UIImage
imageNamed:@"xxx.png"]
forState:UIControlStateNormal];
[cancelButton
setEnabled:YES];
cancelButton.userInteractionEnabled =
YES;
[cancelButton
setTitle:@"发布活动" forState:UIControlStateNormal];
}
}
}else{
[VTOSearchBar
setTintColor:Bar_COLOR];

for(id cancelbutton
in [VTOSearchBar
subviews])//将取消键换成发布活动
{

if([cancelbutton isKindOfClass:[UIButton
class]])
{

UIButton *btn = (UIButton *)cancelbutton;
[btn
setEnabled:YES];
btn.userInteractionEnabled =
YES;
[btn
setTitle:@"发布活动" forState:UIControlStateNormal];


}
}
}