UISearchBar
UISearchBar
___大黄蜂___ 发表于2年前
UISearchBar
  • 发表于 2年前
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初始化:UISearchBar继承于UIView,我们可以像创建View那样创建searchBar

UISearchBar * bar = [[UISearchBar alloc]initWithFrame:CGRectMake(20, 100, 250, 40)];
[self.view addSubview:bar];

@property(nonatomic) UIBarStyle barStyle;

这个属性可以设置searchBar的搜索框的风格,枚举如下:

typedef NS_ENUM(NSInteger, UIBarStyle) { UIBarStyleDefault = 0,//默认风格 白色搜索框,多出的背景为灰色 UIBarStyleBlack = 1,//黑色风格,黑色的搜索框 //下面两个枚举已经被禁用,作用和黑色风格一样 UIBarStyleBlackOpaque = 1, // Deprecated. Use UIBarStyleBlack UIBarStyleBlackTranslucent = 2, // Deprecated. Use UIBarStyleBlack and set the translucent property to YES };

@property(nonatomic,copy) NSString *text;

设置搜索框中的文字

@property(nonatomic,copy) NSString *prompt;

这个属性的官方解释是在搜索框顶部显示一行文字,其实就是背景文字,上图说明:

bar.prompt = @"搜索框"; bar.text=@"321111111111111111111111111" 效果如下:

@property(nonatomic,copy) NSString *placeholder;

和其他文本输入控件的placeholder相同,在输入文字时就会消失

@property(nonatomic) BOOL showsBookmarkButton;

是否在搜索框右侧显示一个图书的按钮,默认为NO,YES的效果如下:

@property(nonatomic) BOOL showsCancelButton;

是否显示取消按钮,默认为NO,YES的效果如下:

@property(nonatomic) BOOL showsSearchResultsButton;

是否显示搜索结果按钮,默认为NO,YES效果如下:

@property(nonatomic, getter=isSearchResultsButtonSelected) BOOL searchResultsButtonSelected ;

设置搜索结果按钮的选中状态

  • (void)setShowsCancelButton:(BOOL)showsCancelButton animated:(BOOL)animated;

设置显示取消按钮

@property(nonatomic,retain) UIColor *tintColor;

设置这个颜色值会影响搜索框中的光标的颜色

@property(nonatomic,retain) UIColor *barTintColor;

设置这个颜色会影响搜索框的背景颜色

@property (nonatomic) UISearchBarStyle searchBarStyle;

设置搜索框整体的风格,枚举如下:

typedef NS_ENUM(NSUInteger, UISearchBarStyle) { UISearchBarStyleDefault, // currently UISearchBarStyleProminent UISearchBarStyleProminent, // 显示背景 UISearchBarStyleMinimal // 不显示背景 } NS_ENUM_AVAILABLE_IOS(7_0);

@property(nonatomic,assign,getter=isTranslucent) BOOL translucent;

设置是否半透明

@property(nonatomic) BOOL showsScopeBar ;

是否显示搜索栏的附件选择按钮试图,要想显示这个试图,首先要将这个属性设置为YES,之后给按钮数组中添加按钮,使用下面这个属性:

@property(nonatomic,copy) NSArray *scopeButtonTitles ;

设置选择按钮试图的按钮标题

@property(nonatomic) NSInteger selectedScopeButtonIndex;

设置一个默认的选中按钮

bar = [[UISearchBar alloc]initWithFrame:CGRectMake(20, 100, 250, 200)];
bar.showsScopeBar=YES;
bar.scopeButtonTitles = @[@"12",@"2",@"3",@"4"];

@property (nonatomic, readwrite, retain) UIView *inputAccessoryView;

键盘的附属试图

@property(nonatomic,retain) UIImage *backgroundImage;

设置搜索框的背景图案

@property(nonatomic,retain) UIImage *scopeBarBackgroundImage;

设置附属选择按钮视图的背景图案

  • (void)setBackgroundImage:(UIImage *)backgroundImage forBarPosition:(UIBarPosition)barPosition barMetrics:(UIBarMetrics)barMetrics ;

  • (UIImage *)backgroundImageForBarPosition:(UIBarPosition)barPosition barMetrics:(UIBarMetrics)barMetrics

这一对方法可以设置和获取某个状态枚举下的搜索框的背景图案

  • (void)setSearchFieldBackgroundImage:(UIImage *)backgroundImage forState:(UIControlState)state;

  • (UIImage *)searchFieldBackgroundImageForState:(UIControlState)state;

这一对方法用于设置和获取搜索框中TextField的背景图案

  • (void)setImage:(UIImage *)iconImage forSearchBarIcon:(UISearchBarIcon)icon state:(UIControlState)state ;

  • (UIImage *)imageForSearchBarIcon:(UISearchBarIcon)icon state:(UIControlState)state ;

这一对方法用于获取和设置搜索栏icon图片的图案

  • (void)setScopeBarButtonBackgroundImage:(UIImage *)backgroundImage forState:(UIControlState)state;

  • (UIImage *)scopeBarButtonBackgroundImageForState:(UIControlState)state;

这一对方法用于设置和获取搜索框的附加选择按钮视图的背景图案

  • (void)setScopeBarButtonDividerImage:(UIImage *)dividerImage forLeftSegmentState:(UIControlState)leftState rightSegmentState:(UIControlState)rightState;

  • (UIImage *)scopeBarButtonDividerImageForLeftSegmentState:(UIControlState)leftState rightSegmentState:(UIControlState)rightState;

这一对方法用于获取和设置附加选择按钮视图中切换按钮的图案

  • (void)setScopeBarButtonTitleTextAttributes:(NSDictionary *)attributes forState:(UIControlState)state;

  • (NSDictionary *)scopeBarButtonTitleTextAttributesForState:(UIControlState)state;

这一对方法用于设置和获取切换按钮标题文字的字体属性字典

@property(nonatomic) UIOffset searchFieldBackgroundPositionAdjustment;

搜索文字在搜索框中的位置偏移

@property(nonatomic) UIOffset searchTextPositionAdjustment;

textfield在搜索框中的位置偏移

  • (void)setPositionAdjustment:(UIOffset)adjustment forSearchBarIcon:(UISearchBarIcon)icon;

  • (UIOffset)positionAdjustmentForSearchBarIcon:(UISearchBarIcon)icon;

设置搜索栏中图片的位置偏移,图片的枚举如下:

typedef NS_ENUM(NSInteger, UISearchBarIcon) { UISearchBarIconSearch, //搜索图标 UISearchBarIconClear, // 清除图标 UISearchBarIconBookmark, // 书本图标 UISearchBarIconResultsList, // 结果列表图标 };

下面是搜索框控件的一些代理方法:

  • (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar;

将要开始编辑时的回调,返回为NO,则不能编辑

  • (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar;

已经开始编辑时的回调

  • (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar;

将要结束编辑时的回调

  • (void)searchBarTextDidEndEditing:(UISearchBar *)searchBar;

已经结束编辑的回调

  • (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText; 编辑文字改变的回调

  • (BOOL)searchBar:(UISearchBar *)searchBar shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text ;

编辑文字改变前的回调,返回NO则不能加入新的编辑文字

  • (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar;

搜索按钮点击的回调

  • (void)searchBarBookmarkButtonClicked:(UISearchBar *)searchBar;

书本按钮点击的回调

  • (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar;

取消按钮点击的回调

  • (void)searchBarResultsListButtonClicked:(UISearchBar *)searchBar;

搜索结果按钮点击的回调

  • (void)searchBar:(UISearchBar *)searchBar selectedScopeButtonIndexDidChange:(NSInteger)selectedScope;

搜索栏的附加试图中切换按钮触发的回调

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