IOS UI学习 UISearchBar
UISearchBar继承自UIView、UIResponder、NSObject
UISearchBar属性设置
code:
1 -(void)createSearchBar 2 { 3 _searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, 40)]; 4 //设置控件样式 5 _searchBar.barStyle = UISearchBarStyleProminent; 6 7 //自动对文本对象进行大小写设置 8 //包含四中类型 9 /* 10 typedef NS_ENUM(NSInteger, UITextAutocapitalizationType) { 11 UITextAutocapitalizationTypeNone, 12 UITextAutocapitalizationTypeWords, 13 UITextAutocapitalizationTypeSentences, 14 UITextAutocapitalizationTypeAllCharacters, 15 }; 16 */ 17 _searchBar.autocapitalizationType = UITextAutocapitalizationTypeNone; 18 19 //自动对输入文本进行纠错 20 //一共三种 21 /* 22 typedef NS_ENUM(NSInteger, UITextAutocorrectionType) { 23 UITextAutocorrectionTypeDefault, 24 UITextAutocorrectionTypeNo, 25 UITextAutocorrectionTypeYes, 26 } 27 */ 28 _searchBar.autocorrectionType = UITextAutocorrectionTypeDefault; 29 30 //控件背景图片 31 _searchBar.backgroundImage = [UIImage imageNamed:@""]; 32 33 //控件右端显示一个 cancel 按钮 默认显示 34 _searchBar.showsCancelButton = YES; 35 36 //在控件的右端显示一个 搜索结果 按钮 37 _searchBar.showsSearchResultsButton = YES; 38 39 //搜索结果 按钮是否被选中 40 _searchBar.searchResultsButtonSelected = NO; 41 42 //控件右端显示一个 书的 按钮 输入文字时消失 43 _searchBar.showsBookmarkButton = YES; 44 45 //控件上面显示的文字 46 //_searchBar.text = @"2"; 47 48 //设置控件是否具有透视效果 49 _searchBar.translucent = NO; 50 51 //设置占位文字 (提示文字) 输入文字时消失 52 _searchBar.placeholder = @"请输入文字"; 53 54 //设置输入时的键盘样式 55 _searchBar.keyboardType = UIKeyboardTypeNumberPad; 56 57 //设置显示在控件顶部的一行提示文字 58 _searchBar.prompt = @"I am searchBar"; 59 60 //设置Bar的颜色 61 _searchBar.tintColor = [UIColor greenColor]; 62 //设置代理 <UISearchBarDelegate> 63 _searchBar.delegate = self; 64 65 //搜索栏下面的选择栏 数组里面的内容是按钮的标题 66 //_searchBar.scopeButtonTitles; 67 68 //搜索栏下面的选择栏按钮的个数 69 _searchBar.selectedScopeButtonIndex = 3; 70 71 //是否在搜索栏下面显示 选择栏 需要设置为 yes 才能使用 scopebar 72 _searchBar.showsScopeBar = YES; 73 74 self.navigationItem.titleView = _searchBar; 75 }
UISearchBar不执行搜索行为，必须使用delegate，当输入搜索文本、点击按钮 或者手势之类 后，代理方法会完成搜索动作。
未完待续
