IOS学习之路五（代码实现UITableView）

先展示一下运行结果：

代码实现：

1.先创建一个空项目：

2.创建一个Controller:(TableViewController)

在AppDelegate.h中声明属性：

//  AppDelegate.h//  UITableViewDemo////  Created by WildCat on 13-8-6.//  Copyright (c) 2013年 wildcat. All rights reserved.//#import <UIKit/UIKit.h>@class TableViewController;@interface AppDelegate : UIResponder <UIApplicationDelegate>@property (nonatomic,strong) TableViewController *tableViewController;@property (strong, nonatomic) UIWindow *window;@property (readonly, strong, nonatomic) NSManagedObjectContext *managedObjectContext;@property (readonly, strong, nonatomic) NSManagedObjectModel *managedObjectModel;@property (readonly, strong, nonatomic) NSPersistentStoreCoordinator *persistentStoreCoordinator;- (void)saveContext;- (NSURL *)applicationDocumentsDirectory;@end

在.m文件中实现：关键代码：

#import "AppDelegate.h"#import "TableViewController.h"@implementation AppDelegate@synthesize tableViewController=_tableViewController;@synthesize managedObjectContext = _managedObjectContext;@synthesize managedObjectModel = _managedObjectModel;@synthesize persistentStoreCoordinator = _persistentStoreCoordinator;- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];    // Override point for customization after application launch.    self.window.backgroundColor = [UIColor whiteColor];    [self.window makeKeyAndVisible];        self.tableViewController=[[TableViewController alloc] initWithNibName:nil bundle:NULL];    [self.window addSubview:self.tableViewController.view];                    return YES;}

在TableViewController中声明：

#import <UIKit/UIKit.h>@interface TableViewController : UIViewController<UITableViewDelegate,UITableViewDataSource>@property (nonatomic, strong) UITableView *myTableView;@end

在其.m文件中实现：

////  TableViewController.m//  UITableViewDemo////  Created by WildCat on 13-8-6.//  Copyright (c) 2013年 wildcat. All rights reserved.//#import "TableViewController.h"@interface TableViewController ()@end@implementation TableViewController@synthesize myTableView;#pragma  mark - 实现UITableViewDelegate的方法//当cell被点击时调用该方法- (void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{    if ([tableView isEqual:self.myTableView]){        NSLog(@"%@",              [NSString stringWithFormat:@"Cell %ld in Section %ld is selected",               (long)indexPath.row, (long)indexPath.section]); }}- (CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{    CGFloat result = 20.0f;    if ([tableView isEqual:self.myTableView]){        result = 40.0f;    }    return result;}#pragma mark - 实现datasource的方法//确定section的个数-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{    NSInteger result=0;    if ([tableView isEqual:self.myTableView]) {        result=3;    }    return result;}//每个section的行数- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{    NSInteger result = 0;    if ([tableView isEqual:self.myTableView]){        switch (section){ case 0:{            result = 3;            break;        } case 1:{            result = 5; break;        } case 2:{            result = 8; break;        } }    }    return result;}//设置每个静态的cell- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    UITableViewCell *result = nil;    if ([tableView isEqual:self.myTableView]){        static NSString *TableViewCellIdentifier = @"MyCells";        result = [tableView dequeueReusableCellWithIdentifier:TableViewCellIdentifier];        if (result == nil){            result = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:TableViewCellIdentifier];        }        result.textLabel.text = [NSString stringWithFormat:@"Section %ld, Cell %ld", (long)indexPath.section,                                 (long)indexPath.row];       // result.backgroundColor=[UIColor greenColor];  //背景色               result.detailTextLabel.text = @"详细内容";        if (indexPath.section==0) {            result.accessoryType = UITableViewCellAccessoryDisclosureIndicator;  //设置右边的样式        }else if(indexPath.section==1){             result.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;  //设置右边的样式        }else{            result.accessoryType = UITableViewCellAccessoryCheckmark;  //设置右边的样式        }        /*         这两个附件的区别在于 disclosure indicator 不产生事件,而 detail disclosure 按钮在被点击时会向委托触发一个事件;也就是说,点击 cell 上的按键会 有不同效果。因此,detail disclosure 按钮允许用户在同一行上执行两个独立但相关的操 作。                           */              //        typedef enum {//            UITableViewCellAccessoryNone,                   // don't show any accessory view//            UITableViewCellAccessoryDisclosureIndicator,    // regular chevron. doesn't track//            UITableViewCellAccessoryDetailDisclosureButton, // blue button w/ chevron. tracks//            UITableViewCellAccessoryCheckmark               // checkmark. doesn't track//        } UITableViewCellAccessoryType;            }    return result; }//实现DetailDisclosure被点击出发的方法- (void) tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath{    /* Do something when the accessory button is tapped */    NSLog(@"Accessory button is tapped for cell at index path = %@", indexPath);    UITableViewCell *ownerCell = [tableView cellForRowAtIndexPath:indexPath];    NSLog(@"Cell Title = %@", ownerCell.textLabel.text);}#pragma mark - TableViewController 的方法- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Custom initialization    }    return self;}- (void)viewDidLoad{    [super viewDidLoad];    self.view.backgroundColor = [UIColor whiteColor];    self.myTableView =    [[UITableView alloc] initWithFrame:self.view.bounds                                 style:UITableViewStyleGrouped];//另一种样式：UITableViewStyleGrouped    self.myTableView.dataSource = self;    self.myTableView.delegate = self;    self.myTableView.autoresizingMask = UIViewAutoresizingFlexibleWidth |UIViewAutoresizingFlexibleHeight;        [self.view addSubview:self.myTableView];        }- (void)viewDidUnload{    [super viewDidUnload];    // Release any retained subviews of the main view.    self.myTableView = nil;}- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{    return (interfaceOrientation == UIInterfaceOrientationPortrait);}@end