iOS App开发中UISearchBar搜索栏组件的基本用法整理

基本属性

@uisearchbar search = [[uisearchbar alloc]initwithframe:cgrectmake(0,44,320,120)];

pragma mark -基本设置

//控件的样式 默认--0白色,1是黑色风格

/*
uibarstyledefault          = 0,
uibarstyleblack            = 1,
search.barstyle =uibarstyledefault;
/*

uisearchbarstyledefault,
// currently uisearchbarstyleprominent

uisearchbarstyleprominent, // used my mail, messages and contacts(provides no default background color or image but will display one if customized as such系统提供的颜色和图片无效,自定制有效)

     uisearchbarstyleminimal    // used by calendar, notes and music

     */

    search.searchbarstyle =uisearchbarstyledefault;

    // 控件上面的显示的文字

    search.text =@"hmt";

    // 显示在顶部的单行文字，通常作为一个提示行

    search.prompt =@"dota";

    // 半透明的提示文字，输入搜索内容消失

    search.placeholder =@"请输入要搜索的词语";

    // bar的颜色(具有渐变效果)搜索栏闪动条和选择栏边框,取消按钮和选择栏被选中时候都会变成设置的颜色

    search.tintcolor = [uicolor redcolor];

    // 除搜索栏框框,就像贴了一张镂空了搜索栏的颜色贴图,不影响其他任何设置的颜色

    search.bartintcolor = [uicolor whitecolor];

    // 指定控件是否会有透视效果

    search.translucent =yes;

    // 设置在什么的情况下自动大写

    /*

     uitextautocapitalizationtypenone,             //除非自己点击大写,否则永不大写

     uitextautocapitalizationtypewords,            //以单词来区分,每个单词首字母大写

     uitextautocapitalizationtypesentences,        //以句子来区分

     uitextautocapitalizationtypeallcharacters,    //所有字母全部大写

     */

    search.autocapitalizationtype =uitextautocapitalizationtypenone;

    // 对于文本对象自动校正风格(额,我也不知道有什么用)

    /*

     uitextautocorrectiontypedefault,

     uitextautocorrectiontypeno,

     uitextautocorrectiontypeyes,

     */

    search.autocorrectiontype =uitextautocorrectiontypeno;

    // 键盘的样式(具体可参考文章uitableview详解(一))

    search.keyboardtype =uikeyboardtypenumberpad;

pragma mark - 设置搜索栏右边按钮图标(uisearchbaricon)

    // 是否在控件的右端显示一个书的按钮

    search.showsbookmarkbutton =yes;

    // 是否显示cancel按钮(静态)

    //search.showscancelbutton = yes;

    // 是否显示cancel按钮(带有动画效果)

    [search setshowscancelbutton:yes animated:yes];

    // 是否在控件的右端显示搜索结果按钮(图形是一个圆里面放着一个向下的箭头)

    search.showssearchresultsbutton =yes;

    // 搜索结果按钮是否被选中

    search.showssearchresultsbutton =yes;

    // 设置控件的右端显示搜索结果按钮处 --- 可用图片替换掉

    [search setimage:[uiimage imagenamed:@"qiyi.png"]forsearchbaricon:uisearchbariconresultslist state:uicontrolstatenormal];

pragma mark - 搜索栏下部选择栏

    // 搜索栏下部的选择栏，数组里面的内容是按钮的标题

    search.scopebuttontitles = [nsarray arraywithobjects:@"ios",@"android",@"iphone",nil];

    // 进入界面,搜索栏下部的默认选择栏按钮的索引(也就是第一出现在哪个选择栏)

    search.selectedscopebuttonindex =2;

    // 控制搜索栏下部的选择栏是否显示出来(显示的话,就要修改search的frame,不显示的话80就够了)

    search.showsscopebar =yes;

pragma mark - 设置控件图片

    // 设置控件背景图片

    search.backgroundimage = [uiimage imagenamed:@"qiyi.png"];

    // 设置搜索栏下部背景图片

    search.scopebarbackgroundimage = [uiimage imagenamed:@"qiyi.png"];

pragma mark - 协议uisearchbardelegate

(不解释了,看名字,已经很明显了)

@编辑文本

 // 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

(void)searchbartextdidbeginediting:(uisearchbar *)searchbar{          // called when text starts editing

          [searchbar setshowscancelbutton:yes animated:yes];   //  动画显示取消按钮

}

(bool)searchbarshouldendediting:(uisearchbar *)searchbar;       // return no to not resign first responder

(void)searchbartextdidendediting:(uisearchbar *)searchbar;            // called when text ends editing

(void)searchbar:(uisearchbar *)searchbar textdidchange:(nsstring *)searchtext{   // called when text changes (including clear)

   @ 当搜索内容变化时，执行该方法。很有用，可以实现时实搜索

}

(bool)searchbar:(uisearchbar *)searchbar shouldchangetextinrange:(nsrange)range replacementtext:(nsstring *)textns_available_ios(3_0);                 // called before text changes
@按钮点击

(void)searchbarsearchbuttonclicked:(uisearchbar *)searchbar;     // called when keyboard search button pressed

(void)searchbarbookmarkbuttonclicked:(uisearchbar *)searchbar;        // called when bookmark button pressed

(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

}

(void)searchbarresultslistbuttonclicked:(uisearchbar *)searchbarns_available_ios(3_2);// called when search results button pressed

(void)searchbar:(uisearchbar *)searchbar selectedscopebuttonindexdidchange:(nsinteger)selectedscopens_available_ios(3_0);

数据刷选类:nspredicate

@假设: nsarray array = [[nsarray alloc]initwithobjects:@"luna",@"moon",@"",@"lion",@"coco", nil];

// 数据的处理主要发生在这个方法中

(void)searchbar:(uisearchbar *)searchbar textdidchange:(nsstring *)searchtext{

    // 方法一:([c]不区分大小写[d]不区分发音符号即没有重音符号[cd]既不区分大小写，也不区分发音符号。)

    nspredicate * predicate = [nspredicate predicatewithformat:@"self contains [cd] %@",searchtext];

   //  数组提供的快速遍历,返回的类型是nsarray

   nslog(@"%@",[ _array filteredarrayusingpredicate:predicate]);

    // 方法二:

    for (int i = 0; i count]; i++) {

        if ([predicate evaluatewithobject:[ _array objectatindex:i]]) {

            nslog(@"%@",[arrayobjectatindex:i]);

        }

    }

}