【iOS】通讯录分组方式展示数据

本例子是将后台返回的医生列表（包含姓名和电话，demo从plist文件读取），按拼音进行分组显示(A-Z)，最终效果如下图：

一、创建Doctor医生类:

Doctor类属性包括姓名、电话以及姓名第一个字的拼音首字母，同时生成初始化方法，对应的.h和.m文件如下：

JXDoctor.h

#import <Foundation/Foundation.h>@interface JXDoctor : NSObject#pragma mark 姓名@property (nonatomic,copy) NSString *name;#pragma mark 姓名拼音索引@property (nonatomic,strong) NSString *nameIndex;#pragma mark 电话@property (nonatomic,copy) NSString *phoneNum;#pragma mark 带参数的构造函数-(JXDoctor *)initWithName:(NSString *)name andPhone:(NSString*)phone;#pragma mark 带参数的静态对象初始化方法+(JXDoctor *)initWithName:(NSString *)name andPhone:(NSString*)phone;#pragma mark 根据字典初始化+(instancetype)doctorWithDict:(NSDictionary*)dict;-(instancetype)initWithDict:(NSDictionary*)dict;@end

JXDoctor.m文件：

#import "JXDoctor.h"@implementation JXDoctor-(JXDoctor *)initWithName:(NSString *)name andPhone:(NSString*)phone{    if(self=[super init]){        self.name=name;        self.phoneNum=phone;        self.nameIndex = [self pinyinFirstLetter:name];    }    return self;}+(JXDoctor *)initWithName:(NSString *)name andPhone:(NSString*)phone{    JXDoctor *doctor = [[JXDoctor alloc] initWithName:name andPhone:phone];    return doctor;}+(instancetype)doctorWithDict:(NSDictionary*)dict{    return [[self alloc] initWithDict:dict];}-(instancetype)initWithDict:(NSDictionary*)dict{    if (self = [super init]) {        //[self setValuesForKeysWithDictionary:dict];        self.name = [dict objectForKey:@"name"];        self.phoneNum = [dict objectForKey:@"phoneNum"];        self.nameIndex = [self pinyinFirstLetter:[dict objectForKey:@"name"]];    }    return self;}//获取字符串首字母-(NSString*)pinyinFirstLetter:(NSString*) hanzi{    NSString *result = @"";    NSMutableString *ms = [[NSMutableString alloc] initWithString:hanzi];    if (CFStringTransform((__bridge CFMutableStringRef)ms, 0, kCFStringTransformMandarinLatin, NO)) {//        NSLog(@"pinyin1: %@", ms);    }    if (CFStringTransform((__bridge CFMutableStringRef)ms, 0, kCFStringTransformStripDiacritics, NO)){//        NSLog(@"pinyin2: %@", ms);    }    if (ms.length>0) {        result = [ms substringToIndex:1];//        NSLog(@"pinyin3: %@", result);    }    return [result uppercaseString];}@end

二、从plist文件读取数据到doctorArr数组：

-(NSArray*)doctorArr{    if (_doctorArr==nil) {        NSArray *tempArr = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"doctors" ofType:@"plist"]];        NSMutableArray *docArr = [NSMutableArray array];        for (NSDictionary *dict in tempArr) {            JXDoctor *doctor = [JXDoctor doctorWithDict:dict];            [docArr addObject:doctor];        }        _doctorArr = docArr;    }    return _doctorArr;}

*plist数据格式如下：

三、处理医生数据：

在ViewController中将从plist得到的数据转换为Doctor对象，并按照首字母进行分类，存放到

sections字典中。

-(void)setUpData{    //创建所有的Keys    sections = [NSMutableDictionary dictionary];    BOOL found;    for (JXDoctor *teamer in self.doctorArr) {        NSString *index = teamer.nameIndex;        found = NO;        for(NSString *str in [sections allKeys]){            if ([str isEqualToString:index]) {                found = YES;            }        }        //还没有对应的key,则新建        if (!found) {            NSLog(@"setValue:%@",index);            [sections setValue:[[NSMutableArray alloc] init] forKey:index];        }    }    //将所有Doctor数据加载进去    for (JXDoctor *doctor in self.doctorArr)    {        [[sections objectForKey:doctor.nameIndex] addObject:doctor];    }    //按A-Z排序    for (NSString *key in [sections allKeys])    {        [[sections objectForKey:key] sortUsingDescriptors:[NSArray arrayWithObject:[NSSortDescriptor sortDescriptorWithKey:@"name" ascending:YES]]];    }    NSLog(@"sections:%@",sections);    [self.mainTableView reloadData];}

四、实现UITableViewDataSource

#pragma mark - UITableViewDataSource-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{    return [[sections allKeys] count];}-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{    NSLog(@"%d,%d",sections.count,[[sections valueForKey:[[[sections allKeys] sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)] objectAtIndex:section]] count]);    return [[sections valueForKey:[[[sections allKeys] sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)] objectAtIndex:section]] count];}- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{    return [[[sections allKeys] sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)] objectAtIndex:section];}-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    static NSString *cellID = @"cellID";    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID];    if (cell==nil) {        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:cellID];    }    JXDoctor *doctor = [[sections valueForKey:[[[sections allKeys] sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)] objectAtIndex:indexPath.section]] objectAtIndex:indexPath.row];    cell.textLabel.text = doctor.name;    cell.detailTextLabel.text = doctor.phoneNum;    return cell;}//返回每组标题索引-(NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView{    return [[sections allKeys] sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)];}

最后运行项目即可看到A—Z排序的效果，Demo下载：http://download.csdn.net/detail/dolacmeng/9291487