【代码笔记】带索引的tableView

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.
}