UISearchBar 搜索条

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属性

• 创建

UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 50, 100, 60)];

• barStyle————控件的样式

searchBar.barStyle = UISearchBarStyleDefault;

UISearchBarStyleProminent 用我的邮件、消息和联系人
UISearchBarStyleMinimal 使用的日历,笔记和音乐

• prompt————显示在顶部的单行文字，通常作为一个提示行

searchBar.prompt = @"提示";

• text————显示在顶部的单行文字，通常作为一个提示行

searchBar.prompt = @"提示";

• placeholder————半透明的提示文字，输入搜索内容消失

searchBar.placeholder = @"请输入";

• showsBookmarkButton————是否在控件的右端显示一个书的按钮(没有文字的时候)

searchBar.showsBookmarkButton = YES;

• showsCancelButton————是否显示cancel按钮

searchBar.showsCancelButton = YES;

• showsSearchResultsButton————是否在控件的右端显示搜索结果按钮(没有文字的时候)

searchBar.showsSearchResultsButton = YES;

• searchResultsButtonSelected————搜索结果按钮是否被选中

searchBar.searchResultsButtonSelected = YES;

• tintColor————bar的颜色(具有渐变效果)

searchBar.tintColor = [UIColor redColor];

• translucent————指定控件是否会有透视效果

searchBar.translucent = YES;

• showsScopeBar————控制搜索栏下部的选择栏是否显示出来

searchBar.showsScopeBar = YES;

• selectedScopeButtonIndex————搜索栏下部的选择栏按钮的个数

searchBar.selectedScopeButtonIndex = 1;

• autocapitalizationType————首字母是否大写

textfield.autocapitalizationType = UITextAutocapitalizationTypeNone; //不自动大写

UITextAutocapitalizationTypeWords 单词首字母大写
UITextAutocapitalizationTypeSentences 句子的首字母大写
UITextAutocapitalizationTypeAllCharacters 所有字母都大写

• autocorrectionType————是否纠错

textfield.autocorrectionType = UITextAutocorrectionTypeDefault;

UITextAutocorrectionTypeNo 不自动纠错

UITextAutocorrectionTypeYes 自动纠错

• backgroundImage————设置控件背景图片

searchBar.backgroundImage = [UIImage imageNamed:@"1.png"];

• scopeBarBackgroundImage————设置搜索栏下部背景图片

searchBar.scopeBarBackgroundImage = [UIImage imageNamed:@"2.png"];

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代理

• UISearchBar得到焦点并开始编辑时，执行该方法

-(BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar; // return NO to not become first responder

• 开始编辑时调用

-(void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar{ // called when text starts editing
[searchBar setShowsCancelButton:YES animated:YES]; // 动画显示取消按钮
}

• 将要结束编辑时调用

-(BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar; // return NO to not resign first responder

• 结束编辑时调用

-(void)searchBarTextDidEndEditing:(UISearchBar *)searchBar; // called when text ends editing

• 内容发生改变时调用

-(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText{ // called when text changes (including clear)

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按钮点击方法

• 点击搜索按钮时调用

-(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar; // called when keyboard search button pressed

• 点击书按钮时调用

-(void)searchBarBookmarkButtonClicked:(UISearchBar *)searchBar; // called when bookmark button pressed

• 点击取消按钮时调用

-(void)searchBarCancelButtonClicked:(UISearchBar *) searchBar{ // called when cancel button pressed
[searchBar setShowsCancelButton:NO animated:NO]; // 取消按钮回收
[searchBar resignFirstResponder]; // 取消第一响应值,键盘回收,搜索结束
}

• 点击搜索结果按钮时调用

-(void)searchBarResultsListButtonClicked:(UISearchBar *)searchBarNS_AVAILABLE_IOS(3_2);// called when search results button pressed

• 点击下面搜索栏按钮时调用

-(void)searchBar:(UISearchBar *)searchBar selectedScopeButtonIndexDidChange:(NSInteger)selectedScopeNS_AVAILABLE_IOS(3_0);