【代码笔记】iOS-带索引的tableView

来源：互联网发布：centos minimal 桌面编辑：程序博客网时间：2024/05/16 01:12

一，效果图。

二，工程图。

三，代码。

RootViewController.h

#import <UIKit/UIKit.h>@interface RootViewController : UIViewController<UITableViewDelegate,UITableViewDataSource,UISearchDisplayDelegate,UISearchBarDelegate>{    UITableView * tableview;    NSMutableArray * Aarray;    UISearchBar * searchBar;    UISearchDisplayController *searchControl;}@end

RootViewController.m

#import "RootViewController.h"@interface RootViewController ()@end@implementation RootViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Custom initialization    }    return self;}- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.        //初始化背景图    [self initBackGroundView];}#pragma -mark -functions-(void)initBackGroundView{    Aarray = [[NSMutableArray alloc] initWithObjects:@"+",@"我",@"A",@"B",@"C",@"D",@"E",@"F",@"G",@"H",@"I",@"J",@"K",@"L",@"M",@"N",@"O",@"P",@"Q",@"R",@"S",@"T",@"U",@"V",@"W",@"X",@"Y",@"Z",@"#",nil];        //tableView    tableview = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 320, 460-44-10-10-20) style:UITableViewStylePlain];    tableview.tag = 101;    tableview.delegate = self;    tableview.dataSource = self;    [self.view addSubview:tableview];        //searchView    searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];    tableview.tableHeaderView = searchBar;    searchBar.showsScopeBar = YES;    searchBar.placeholder = @"在全部关注中搜索...";        //搜索的时候会有左侧滑动的效果    searchControl = [[UISearchDisplayController alloc]initWithSearchBar:searchBar contentsController:self];    searchControl.delegate = self;    searchControl.searchResultsDataSource = self;    searchControl.searchResultsDelegate = self;    }#pragma -mark -searchbar-(void)searchBar:(UISearchBar *)searchBar selectedScopeButtonIndexDidChange:(NSInteger)selectedScope{    ;}#pragma -mark -UITableViewDelegate-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{    return 2;}-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{    if (section == 0) {        return 1;    }    return 100;}- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{    return 40.0;}-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    NSString * strID = @"ID";    UITableViewCell * cell = [tableview dequeueReusableCellWithIdentifier:strID];    if (cell == nil) {        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:strID];    }        if (indexPath.section == 0 && indexPath.row == 0) {        cell.textLabel.text = @"找朋友";    }else if(indexPath.section ==1 && indexPath.row == 0){        cell.textLabel.text=@"row";    }    return cell;}-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{    if (section == 1) {        return @"我的资料";    }    return nil;}-(NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView{    return [NSArray arrayWithObjects:UITableViewIndexSearch,@"+",@"A",@"B",@"C",@"D",@"E",@"F",@"G",@"H",@"I",@"J",@"K",@"L",@"M",@"N",@"O",@"P",@"Q",@"R",@"S",@"T",@"U",@"V",@"W",@"X",@"Y",@"Z",@"#", nil];}- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}

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