點擊cell顯示cell的細節

實現的功能：點擊cell顯示cell的詳細資料，再次點擊關閉cell的詳細資料。#import <UIKit/UIKit.h>  @interface MyCell : UITableViewCell{    UILabel *lab_info;    UILabel *lab_detailInfo;    CGFloat normalHeight;}@property (retain,nonatomic)UILabel *lab_info,*lab_detailInfo;@property CGFloat normalHeight;-(CGFloat)getMyCellHeight;-(void)resetCellHeight;@end  #import "MyCell.h"@interface MyCell(){}@end@implementation MyCell @synthesize lab_info,lab_detailInfo;@synthesize normalHeight;- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];    if (self) {         lab_info=[[UILabel alloc]init];        [self.contentView addSubview:lab_info];        //        self.normalHeight=self.frame.size.height;        //        lab_detailInfo=[[UILabel alloc]init];        lab_detailInfo.lineBreakMode=NSLineBreakByCharWrapping;        lab_detailInfo.numberOfLines=5;        [self.contentView addSubview:lab_detailInfo];        //        self.layer.shadowColor=[UIColor blackColor].CGColor;        self.layer.shadowOffset=CGSizeMake(0, 2);        self.layer.shadowOpacity=0.3;        self.layer.shadowRadius=2;        //            }    return self;} - (void)setSelected:(BOOL)selected animated:(BOOL)animated{    [super setSelected:selected animated:animated];}-(CGFloat)getDetailLabViewHeight{    [self.lab_detailInfo sizeToFit];    return self.lab_detailInfo.frame.size.height;;}-(CGFloat)getMyCellHeight{    return normalHeight +[self getDetailLabViewHeight];} -(void)resetCellHeight{    [self layoutIfNeeded];    CGRect cellFrame=self.frame;    cellFrame.size.height=normalHeight+[self getDetailLabViewHeight];    [self setFrame:cellFrame];}-(void)layoutSubviews{    [super layoutSubviews];    //設定標題的lab的高度    CGRect lab_info_Frame=CGRectInset(self.frame, 0, 0);    lab_info_Frame.origin.x=lab_info_Frame.origin.y=0;    lab_info_Frame.size.height=normalHeight;    [lab_info setFrame:lab_info_Frame];    //設定詳細資料的高度    CGRect lab_detailInfo_Frame=CGRectInset(self.frame, 0, 0);    lab_detailInfo_Frame.origin.x=0;    lab_detailInfo_Frame.origin.y=normalHeight;    lab_detailInfo_Frame.size.height=[self getDetailLabViewHeight];    [lab_detailInfo setFrame:lab_detailInfo_Frame];    //    //[self setNeedsDisplay];}-(void)drawRect:(CGRect)rect{    [super drawRect:rect];    self.contentView.backgroundColor=[UIColor grayColor];    lab_info.backgroundColor=[UIColor clearColor];    lab_detailInfo.backgroundColor=[UIColor clearColor];} @end #import <UIKit/UIKit.h>#import "MyCell.h"@interface RootViewController : UITableViewController{    NSMutableArray *isItemSelected;}  @end  #import "RootViewController.h" @implementation RootViewController  #pragma mark -#pragma mark View lifecycle - (void)viewDidLoad {    [super viewDidLoad];     isItemSelected=[[NSMutableArray alloc]initWithCapacity:5];    for (int i=0; i<5; i++)    {        [isItemSelected insertObject:[NSNumber numberWithBool:NO] atIndex:i];    }} #pragma mark -#pragma mark Table view data source // Customize the number of sections in the table view.- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {    return 1;}  // Customize the number of rows in the table view.- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {    return 5;} // Customize the appearance of table view cells.- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {        static NSString *CellIdentifier = @"Cell";        MyCell  *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];    if (cell == nil) {        cell = (MyCell*)[[MyCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];        cell.selectionStyle=UITableViewCellSelectionStyleNone;    }     cell.lab_info.text=[NSString stringWithFormat:@"title-%d",indexPath.row];    cell.lab_detailInfo.text=[NSString stringWithFormat:@"subtitle-%d",indexPath.row];    if ([[isItemSelected objectAtIndex:indexPath.row]boolValue]==YES) {        cell.lab_detailInfo.hidden=NO;    }else{       cell.lab_detailInfo.hidden=YES;    } www.2cto.com    return cell;} #pragma mark -#pragma mark Table view delegate - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{     MyCell *cell=(MyCell *)[self tableView:tableView cellForRowAtIndexPath:indexPath];    if ([[isItemSelected objectAtIndex:indexPath.row] boolValue]==YES) {         return [cell getMyCellHeight];    }    else    {       return cell.normalHeight;        }        }  - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {     BOOL b=[[isItemSelected objectAtIndex:indexPath.row]boolValue];    [isItemSelected replaceObjectAtIndex:indexPath.row withObject:[NSNumber numberWithBool:!b]];    //    [tableView reloadData];   // [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationNone];     } 效果是這樣的