準(zhǔn)備工作：
1、首先引入UISearchBarDelegate代理
2、添加一個數(shù)組，存放搜索結(jié)果

//存放搜索結(jié)果的數(shù)組
@property(nonatomic,strong)NSMutableArray *resultArray;

-(NSMutableArray *)resultArray{

    if (!_resultArray) {
        _resultArray = [NSMutableArray array];
    }
    return _resultArray;
}

3、創(chuàng)建tableview

  //創(chuàng)建tableview
-(UItableView *)tableView{
    if(!_tableView)
    _tableView = [[UITableView alloc]initWithFrame:CGRectMake(frame.origin.x, frame.origin.y+64+55, frame.size.width,0)];
    _tableView.delegate = self;
    _tableView.dataSource = self;
    _tableView.backgroundColor = [UIColor whiteColor];
    _tableView.rowHeight = 44;
    _tableView.layer.cornerRadius = 5;
     _tableView.tableHeaderView = [self headView];
    _tableView.tableFooterView = [[UIView alloc]init];
}

4、創(chuàng)建UISearchBar作為tableview的頭部

//UISearchBar作為tableview的頭部
+(UIView *)headView{

   UISearchBar *searchBar = [[UISearchBar alloc]initWithFrame:CGRectMake(0, 64, 100, 44)];
    searchBar.keyboardType = UIKeyboardAppearanceDefault;
    searchBar.placeholder = @"請輸入搜索關(guān)鍵字";
    searchBar.delegate = self;
    //底部的顏色
    searchBar.barTintColor = KGrayColor;
    searchBar.searchBarStyle = UISearchBarStyleDefault;
    searchBar.barStyle = UIBarStyleDefault;
    return searchBar;
}

5、實現(xiàn)UISearchBarDelegate的代理

//在搜索框中修改搜索內(nèi)容時，自動觸發(fā)下面的方法
-(BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar{
    return YES;
}

-(void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar{
    
    NSLog(@"開始輸入搜索內(nèi)容");
    searchBar.showsCancelButton = YES;//取消的字體顏色，
    [searchBar setShowsCancelButton:YES animated:YES];
    
    //改變?nèi)∠奈谋?    for(UIView *view in [[[searchBar subviews] objectAtIndex:0] subviews]) {
        if ([view isKindOfClass:[UIButton class]]) {
            UIButton *cancel =(UIButton *)view;
            [cancel setTitle:@"取消" forState:UIControlStateNormal];
            [cancel setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
        }
    }
}

-(void)searchBarTextDidEndEditing:(UISearchBar *)searchBar{
    NSLog(@"輸入搜索內(nèi)容完畢");  
}

--->搜框中輸入關(guān)鍵字進(jìn)行搜索

//搜框中輸入關(guān)鍵字的事件響應(yīng)
-(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText{
    
    NSLog(@"輸入的關(guān)鍵字是---%@---%lu",searchText,(unsigned long)searchText.length);
    
    //需要事先情況存放搜索結(jié)果的數(shù)組
    [self.resultArray removeAllObjects];
    
    //加個多線程，否則數(shù)量量大的時候，有明顯的卡頓現(xiàn)象
    //這里最好放在數(shù)據(jù)庫里面再進(jìn)行搜索，效率會更快一些
    dispatch_queue_t globalQueue = dispatch_get_global_queue(0, 0);
    dispatch_async(globalQueue, ^{
        if (searchText!=nil && searchText.length>0) {
            
            //遍歷需要搜索的所有內(nèi)容，其中self.dataArray為存放總數(shù)據(jù)的數(shù)組
            for (DataModel *model in self.dataArray) {
                
                NSString *tempStr = model.content;
                
                //----------->把所有的搜索結(jié)果轉(zhuǎn)成成拼音
                NSString *pinyin = [self transformToPinyin:tempStr];
                NSLog(@"pinyin--%@",pinyin);
                
                if ([pinyin rangeOfString:searchText options:NSCaseInsensitiveSearch].length >0 ) {
                    //把搜索結(jié)果存放self.resultArray數(shù)組
                    [self.resultArray addObject:model];
                }
            } 
        }else{
            self.resultArray = [NSMutableArray arrayWithArray:self.dataArray];
        }
        //回到主線程
        dispatch_async(dispatch_get_main_queue(), ^{
            [_tableView reloadData];
        });
    });
}

//取消的響應(yīng)事件
-(void)searchBarCancelButtonClicked:(UISearchBar *)searchBar{
    
    NSLog(@"取消搜索");
    [searchBar setShowsCancelButton:NO animated:YES];
    [searchBar resignFirstResponder];
}

 //鍵盤上搜索事件的響應(yīng)
-(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{
    
    NSLog(@"搜索");
    [searchBar setShowsCancelButton:NO animated:YES];
    [searchBar resignFirstResponder];
}

!!!獲取漢字轉(zhuǎn)成拼音字符串 通訊錄模糊搜索 支持拼音檢索 首字母 全拼 漢字 搜索

- (NSString *)transformToPinyin:(NSString *)aString
{
    //轉(zhuǎn)成了可變字符串
    NSMutableString *str = [NSMutableString stringWithString:aString];
    CFStringTransform((CFMutableStringRef)str,NULL, kCFStringTransformMandarinLatin,NO);
    //再轉(zhuǎn)換為不帶聲調(diào)的拼音
    CFStringTransform((CFMutableStringRef)str,NULL, kCFStringTransformStripDiacritics,NO);
    NSArray *pinyinArray = [str componentsSeparatedByString:@" "];
    NSMutableString *allString = [NSMutableString new];
    
    int count = 0;
    
    for (int  i = 0; i < pinyinArray.count; i++)
    {
        
        for(int i = 0; i < pinyinArray.count;i++)
        {
            if (i == count) {
                [allString appendString:@"#"];//區(qū)分第幾個字母
            }
            [allString appendFormat:@"%@",pinyinArray[i]];
            
        }
        [allString appendString:@","];
        count ++;
        
    }
    
    NSMutableString *initialStr = [NSMutableString new];//拼音首字母
    
    for (NSString *s in pinyinArray)
    {
        if (s.length > 0)
        {
            
            [initialStr appendString:  [s substringToIndex:1]];
        }
    }
    
    [allString appendFormat:@"#%@",initialStr];
    [allString appendFormat:@",#%@",aString];
    
    return allString;
}

tableView展示搜索內(nèi)容

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
    
    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
    
    //把符合搜索條件的內(nèi)容展示出來
   JXSChannelModel *model = self.resultArray[indexPath.row];
   cell.textLabel.text = model.ChannelName;
}

Demo下載地址：https://github.com/zhuchenglong/MySearchBarDemo

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