iOS.UIKit.15.UITableView -- Index
1、案例介绍:具备索引功能的分节表视图,如图01
图01
2、team_dictionary.plist
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>A组</key> <array> <string>A1-南非</string> <string>A2-墨西哥</string> <string>A3-乌拉圭</string> <string>A4-法国</string> </array> <key>B组</key> <array> <string>B1-阿根廷</string> <string>B2-尼日利亚</string> <string>B3-韩国</string> <string>B4-希腊</string> </array> <key>C组</key> <array> <string>C1-英格兰</string> <string>C2-美国</string> <string>C3-阿尔及利亚</string> <string>C4-斯洛文尼亚</string> </array> <key>D组</key> <array> <string>D1-德国</string> <string>D2-澳大利亚</string> <string>D3-塞尔维亚</string> <string>D4-加纳</string> </array> <key>E组</key> <array> <string>E1-荷兰</string> <string>E2-丹麦</string> <string>E3-日本</string> <string>E4-喀麦隆</string> </array> <key>F组</key> <array> <string>F1-意大利</string> <string>F2-巴拉圭</string> <string>F3-斯洛伐克</string> <string>F4-新西兰</string> </array> <key>G组</key> <array> <string>G1-巴西</string> <string>G2-朝鲜</string> <string>G3-科特迪瓦</string> <string>G4-葡萄牙</string> </array> <key>H组</key> <array> <string>H1-西班牙</string> <string>H2-瑞士</string> <string>H3-洪都拉斯</string> <string>H4-智利</string> </array> </dict> </plist>
3、.h
#import <UIKit/UIKit.h> @interface CQ24ViewController : UITableViewController<UISearchBarDelegate> // 表数据 @property (strong,nonatomic) NSDictionary *dictData; // 表数据分组名集合 @property (strong,nonatomic) NSArray *listGroupname; @end
4、.m
#import "CQ24ViewController.h" @interface CQ24ViewController () @end @implementation CQ24ViewController - (void)viewDidLoad { [super viewDidLoad]; NSBundle *mainBundle = [NSBundle mainBundle]; NSString *plistPath = [mainBundle pathForResource:@"team_dictionary" ofType:@"plist"]; // 1、初始化表格数据dictData self.dictData = [[NSDictionary alloc] initWithContentsOfFile:plistPath]; // 2、初始化分组名称,排序 NSArray *tempList = [self.dictData allKeys]; self.listGroupname = [tempList sortedArrayUsingSelector:@selector(compare:)]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; } #pragma mark 返回分组数 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { // 1、获取分组名称 NSString *groupName = [self.listGroupname objectAtIndex:section]; // 2、将分组名称作为key,从字典中取出分组数据 NSArray *listTeams = [self.dictData objectForKey:groupName]; return [listTeams count]; } #pragma mark 填充每个节的Cell - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { // 1、加载一个cell static NSString *CellIdentifier = @"CellIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; } // 2、获取选择的节 NSUInteger section = [indexPath section]; // 3、获取节名称 NSString *groupName = [self.listGroupname objectAtIndex:section]; // 4、获取节数据 NSArray *listTeams = [self.dictData objectForKey:groupName]; // 5、获取选中节中的行索引 NSUInteger row = [indexPath row]; // 6、设置cell中的text cell.textLabel.text = [listTeams objectAtIndex:row]; return cell; } #pragma mark 节数 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return self.listGroupname.count; } #pragma mark 设置节title -(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { NSString *groupName = [self.listGroupname objectAtIndex:section]; return groupName; } #pragma mark 索引 - (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView { // 1、存在索引的集合 NSMutableArray *listTitles = [[NSMutableArray alloc] initWithCapacity:[self.listGroupname count]]; // 2、初始化索引集合 for (NSString *item in self.listGroupname) { NSString *title = [item substringToIndex:1]; [listTitles addObject:title]; } return listTitles; } @end
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