要求：在一个view中显示两个tableView，要求左右显示的内容以及行数不一样，且左边每行显示两张图片（分别3个一轮回，2个一轮回）并且显示中国的城市名，右边显示水果名。点击时分别显示城市名或水果名的对话框（偶数的城市不能点击）（所选的图片长短比例不一致）

运行图：

步骤：

1.创建一个tableCell.xib

2.viewController.h:

#import <UIKit/UIKit.h> @interface DXWViewController : UIViewController<UITableViewDataSource,UITableViewDelegate> @property (retain, nonatomic) IBOutlet UITableViewCell *ccell; @end

// //  DXWViewController.m //  两个tableView // //  Created by 丁小未 on 13-8-19. //  Copyright (c) 2013年 dingxiaowei. All rights reserved. //  #import "DXWViewController.h" #define heightofimage(image) image.size.height*150.0/image.size.width @interface DXWViewController () {     NSMutableArray *arrdata;     NSMutableArray *arrdata1;     NSMutableArray *arrdata2;     NSMutableArray *arrdata2_1;     NSMutableArray *arrdata3;     float he1,he2; } @property (retain, nonatomic) IBOutlet UITableView *tableview1; @property (retain, nonatomic) IBOutlet UITableView *tableview2; @property (retain, nonatomic) IBOutlet UITableView *tableview3;  @end  @implementation DXWViewController  @synthesize tableview1,tableview2,tableview3;  - (void)viewDidLoad {     [super viewDidLoad];     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(Backhome) name:@"Back" object:nil];     he1 = 0.0;     he2 = 0.0;     arrdata1 = [[NSMutableArray alloc] initWithCapacity:1];     arrdata2 = [[NSMutableArray alloc] initWithCapacity:1];     arrdata3 = [[NSMutableArray alloc] initWithObjects:@"苹果",@"香蕉",@"梨子",@"菠萝",@"桃子",@"西瓜",@"葡萄",@"凌檬",@"樱桃", @"芒果",nil];     arrdata2_1 = [[NSMutableArray alloc] initWithObjects:@"江苏", @"南京",@"河北",@"武汉",@"南通",@"北京",@"合肥",@"天津",@"长沙",@"苏州",nil];     for (int i=1; i<11; i++) {         UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"%d.jpeg",i]];         float hecu = image.size.height *150/image.size.width;                  if (he2>=he1) {             he1 = he1 +hecu;             NSArray *arr = [[NSArray alloc] initWithObjects:[NSString stringWithFormat:@"%d",i],[NSString stringWithFormat:@"%f",hecu], nil];             [arrdata1 addObject:arr];         }         else         {             he2 = he2 + hecu;             NSArray *arr = [[NSArray alloc] initWithObjects:[NSString stringWithFormat:@"%d",i],[NSString stringWithFormat:@"%f",hecu], nil];             [arrdata2 addObject:arr];         }     }     tableview1.showsVerticalScrollIndicator = NO;     tableview2.showsVerticalScrollIndicator = NO;     NSLog(@"%@+++++++%@",arrdata1,arrdata2); } //两个tableview显示的行数 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{     if (tableView == tableview1) {         return [arrdata1 count];     }else if(tableView == tableview2){         return [arrdata2 count];     }     else     {         return [arrdata3 count]*4;     }          return 0; }  //两个tableview显示的高度 - (float)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{     NSInteger row = indexPath.row;     if (tableView == tableview1) {         return [[[arrdata1 objectAtIndex:row] objectAtIndex:1] floatValue] +10;     }else if(tableView == tableview2){         return [[[arrdata2 objectAtIndex:row] objectAtIndex:1] floatValue] +10;     }     else     {         return 44;     } }  //两个tableview一起滚动 - (void)scrollViewDidScroll:(UIScrollView *)scrollView{     if (scrollView == tableview1) {         [tableview2 setContentOffset:tableview1.contentOffset];     }     else if(scrollView = tableview2){         [tableview1 setContentOffset:tableview2.contentOffset];     }      }  //tableviewcell的初始化 -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {     NSInteger row = indexPath.row;     if (tableView == tableview1) {         static NSString *id1 = @"sd1";         UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:id1];         if (cell == nil) {             NSArray *nib  = [[NSBundle mainBundle] loadNibNamed:@"CellView" owner:self options:nil];             if (nib>0) {                 cell = _ccell;             }         }         UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"%d.jpeg",[[[arrdata1 objectAtIndex:row] objectAtIndex:0] integerValue]]];         UIImageView *imageview = (UIImageView *)[cell viewWithTag:101];         [imageview setImage:image];         CGRect rect = imageview.frame;         rect.size.height = [[[arrdata1 objectAtIndex:row] objectAtIndex:1] floatValue];         imageview.frame = rect;         return cell;     }     else if(tableView == tableview2)     {         static NSString *id = @"sd";         UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:id];         if (cell == nil) {             NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"CellView" owner:self options:nil];             if (nib > 0) {                 cell = _ccell;             }             //创建UILabel             UILabel *label = [[UILabel alloc] init];             label.text = [arrdata2_1 objectAtIndex:indexPath.row];             label.frame = CGRectMake(10, 7, 100, 35);             //将UILabel添加到contentView中             [cell.contentView addSubview:label];                      }         UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"%d.jpeg",[[[arrdata2 objectAtIndex:row] objectAtIndex:0] integerValue]]];         UIImageView *imageview = (UIImageView *)[cell viewWithTag:101];         [imageview setImage:image];         CGRect rect = imageview.frame;         rect.size.height = [[[arrdata2 objectAtIndex:row] objectAtIndex:1] floatValue];         imageview.frame = rect;         return cell;     }     else if(tableView == tableview3)     {         NSString *identifier = @"aaa";//创建一个表示符         //询问带这种标志的可以用的cell有没有         UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];         if (cell == nil) {             cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identifier];         }         int row = [indexPath row];//需要显示的是第几行         cell.textLabel.text = [arrdata3 objectAtIndex:row%[arrdata3 count]];         return cell;     }     return nil; }  //点击某行的时候执行的操作 -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {     if (tableView == tableview3) {         NSString * str= [arrdata3 objectAtIndex:[indexPath row]%[arrdata3 count]];         UIAlertView *a = [[UIAlertView alloc] initWithTitle:@"你选中的水果" message:str delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];         [a show];         [a release];         //取消选中         [tableView deselectRowAtIndexPath:indexPath animated:YES];     } }  //将要选中某行时候做的事情,常用来判断某行是否能点击 -(NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath {     //偶数行不能点击     if ([indexPath row]%2==1) {         return nil;     }     return indexPath;      }  - (void)Backhome{     [self dismissModalViewControllerAnimated:YES]; }  - (void)dealloc {     [self.ccell release];     [self.tableview1 release];     [self.tableview2 release];     [self.tableview3 release];     [super dealloc]; }  @end