UISearchBar 右边取消按钮设置

//创建搜索按钮

self.searchBar= [[UISearchBaralloc]initWithFrame:CGRectMake(8,8,screenWith-16,44)];

self.searchBar.barTintColor=UIColorFromRGBA(216,160,116,1);

self.searchBar.searchBarStyle=UISearchBarStyleDefault;

self.searchBar.returnKeyType=UIReturnKeySearch;

self.searchBar.layer.cornerRadius=8;

self.searchBar.layer.masksToBounds=YES;

self.searchBar.placeholder=@"请输入关键词";

[self.searchBarsetImage:[UIImageimageNamed:@"yiunion_search box"]forSearchBarIcon:UISearchBarIconSearchstate:UIControlStateNormal];

//找到searchbar的searchField属性

UITextField*searchField = [self.searchBarvalueForKey:@"searchField"];

if(searchField) {

//背景色

[searchFieldsetBackgroundColor:[UIColorwhiteColor]];

//设置字体颜色&占位符(必须)

searchField.textColor= [UIColorblackColor];

//根据@"_placeholderLabel.textColor"找到placeholder的字体颜色

[searchFieldsetValue:UIColorFromRGBA(235,219,206,1)forKeyPath:@"_placeholderLabel.textColor"];

}

[self.searchBarsetShowsCancelButton:YES];

[self.searchBarbecomeFirstResponder];

//设置代理

self.searchBar.delegate=self;

---

#pragma mark - searchBar delegate

- (BOOL)searchBarShouldBeginEditing:(UISearchBar*)searchBar_ {

//对取消文字作国际化（必须要在这个代理方法里面进行设置，同时要设置cancel按钮在此代理里才开始显示）

UIView*topView = searchBar_.subviews[0];

for(UIView*subViewintopView.subviews) {

if([subViewisKindOfClass:NSClassFromString(@"UINavigationButton")]) {

UIButton*cancelButton = (UIButton*)subView;

[cancelButtonsetTitle:AppLocalizedString(@"Cancel")forState:UIControlStateNormal];

[cancelButtonsetTitleColor:UIColorFromRGBA(216,160,116,1)forState:UIControlStateNormal];

break;

}

}

returnYES;

}

/**

*开始搜索

*

*@param searchBar searchBar description

*/

- (void)searchBarSearchButtonClicked:(UISearchBar*)searchBar{

[searchBarresignFirstResponder];

//取消按钮在UISearchBar失去焦点之后，其enabled属性为no，导致失去焦点之后，你再点击取消按钮，此时就不执行searchBarCancelButtonClicked。而是先获得焦点，然后你再点击，才执行到searchBarCancelButtonClicked。即点两次才能触发到searchBarCancelButtonClicked函数。

UIView*topView = searchBar.subviews[0];

for(UIView*subViewintopView.subviews) {

if([subViewisKindOfClass:NSClassFromString(@"UINavigationButton")]) {

UIButton*cancelButton = (UIButton*)subView;

cancelButton.enabled=YES;

break;

}

}

.......

}

- (void)searchBarCancelButtonClicked:(UISearchBar*)searchBar{

[searchBarresignFirstResponder];

if(self.navigationController.presentingViewController) {

[selfdismissViewControllerAnimated:YEScompletion:nil];

}

elseif([self.navigationController.viewControllerscount] >1)

{

[self.navigationControllerpopViewControllerAnimated:YES];

}

}