UI09_UITableView自定义写cell

#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@end

#import "AppDelegate.h"
#import "RootViewController.h"

@interface AppDelegate ()

@end

@implementation AppDelegate
- (void)dealloc
{
[_window release];
[super dealloc];
}

- (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];
[_window release];

RootViewController *rootVC = [[RootViewController alloc] init];
UINavigationController *naVC = [[UINavigationController alloc] initWithRootViewController:rootVC];
self.window.rootViewController = naVC;
[rootVC release];
[naVC release];

return YES;
}

#import <UIKit/UIKit.h>

@interface RootViewController : UIViewController

@end

#import "RootViewController.h"
////    引头文件
#import "MyCell.h"
#import "YourCell.h"

@interface RootViewController ()<UITableViewDataSource, UITableViewDelegate>
@property(nonatomic, retain)UITableView *tableView;
@end

@implementation RootViewController

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor whiteColor];

self.tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height) style:UITableViewStylePlain];
[self.view addSubview:self.tableView];
[_tableView release];
self.tableView.dataSource = self;
self.tableView.delegate = self;
self.tableView.rowHeight = 150;

}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 10;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.row % 2 == 0) {
static NSString *yourReuse = @"reuse";
MyCell *cell = [tableView dequeueReusableCellWithIdentifier:yourReuse];
if (!cell) {
cell = [[[MyCell alloc] initWithStyle:UITableViewCellStyleValue2 reuseIdentifier:yourReuse] autorelease];

}
cell.label.text = [NSString stringWithFormat:@"%ld", indexPath.row];
return cell;

} else {
#warning 即使是在同一个tableView显示, 不同的cell必须要指定不同的重用标志, 否则以重用标志找cell的时候, 可以找到的cell类型有误, 造成崩溃
static NSString *reuse = @"yourReuse";
YourCell *cell = [tableView dequeueReusableCellWithIdentifier:reuse];
if (!cell) {
cell = [[[YourCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuse] autorelease];
}
cell.leftLabel.text = [NSString stringWithFormat:@"%ld", indexPath.row];
return cell;
}

}

#import <UIKit/UIKit.h>

@interface YourCell : UITableViewCell

@property(nonatomic, retain)UIImageView *myImageView;
@property(nonatomic, retain)UILabel *leftLabel;
@property(nonatomic, retain)UILabel *rightLabel;

@end

#import "YourCell.h"

#define WIDTH self.contentView.frame.size.width
#define HEIGHT self.contentView.frame.size.height

@implementation YourCell

- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
[self createView];
}
return self;
}
- (void)createView {
self.myImageView = [[UIImageView alloc] init];
self.myImageView.backgroundColor = [UIColor purpleColor];
[self.contentView addSubview:self.myImageView];
[self.myImageView release];

self.leftLabel = [[UILabel alloc] init];
self.leftLabel.backgroundColor = [UIColor cyanColor];
[self.contentView addSubview:self.leftLabel];
[self.leftLabel release];

self.rightLabel = [[UILabel alloc] init];
self.rightLabel.backgroundColor = [UIColor lightGrayColor];
[self.contentView addSubview:self.rightLabel];
[self.rightLabel release];
}

- (void)layoutSubviews {
[super layoutSubviews];

self.myImageView.frame = CGRectMake(0, 0, WIDTH / 3, HEIGHT);
self.leftLabel.frame = CGRectMake(WIDTH / 3, 0, WIDTH / 3, HEIGHT);
self.rightLabel.frame = CGRectMake(WIDTH / 3 * 2, 0, WIDTH / 3, HEIGHT);

}

#import <UIKit/UIKit.h>

@interface MyCell : UITableViewCell

@property(nonatomic, retain)UILabel *label;
@property(nonatomic, retain)UIImageView *leftImageView;
@property(nonatomic, retain)UIImageView *centerImageView;
@property(nonatomic, retain)UIImageView *rightImageView;
#warning 给自定义的cell写属性的时候, 要注意一定要和系统提供的三个控件名进行区分, imageView,  textLabel, detailTextLabel, 尤其是imageView, 一定不能写
@end

#import "MyCell.h"
#define WIDTH self.contentView.frame.size.width
#define HEIGHT self.contentView.frame.size.height

@implementation MyCell
//  在自定义cell里需要写两部分内容
#pragma mark    第一部分是重写cell的初始化方法, 在这个方法中我们创建属性的视图, 不设置尺寸
- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
[self createView];
}
return self;
}
- (void)createView {
//
self.label = [[UILabel alloc] init];
self.label.backgroundColor = [UIColor orangeColor];
[self.contentView addSubview:self.label];
[_label release];

self.leftImageView = [[UIImageView alloc] init];
self.leftImageView.backgroundColor = [UIColor greenColor];
[self.contentView addSubview:self.leftImageView];
[_leftImageView release];

self.centerImageView = [[UIImageView alloc] init];
self.centerImageView.backgroundColor = [UIColor lightGrayColor];
[self.contentView addSubview:self.centerImageView];
[_leftImageView release];

self.rightImageView = [[UIImageView alloc] init];
self.rightImageView.backgroundColor = [UIColor yellowColor];
[self.contentView addSubview:self.rightImageView];
[_rightImageView release];
}

#pragma mark    第二部分, 在这个方法里设置所有子视图的尺寸, 而且这个方法是cell出现之前执行的最后一个方法
- (void)layoutSubviews {
//  这句话一定不能忘写
[super layoutSubviews];

//  设置所有子视图的坐标和大小
self.label.frame = CGRectMake(0, 0, WIDTH, HEIGHT / 2);
self.leftImageView.frame = CGRectMake(0, HEIGHT / 2, WIDTH / 3, HEIGHT / 2);
self.centerImageView.frame = CGRectMake(WIDTH / 3, HEIGHT / 2, WIDTH / 3, HEIGHT / 2);
self.rightImageView.frame = CGRectMake(WIDTH / 3 * 2, HEIGHT / 2, WIDTH / 3, HEIGHT / 2);

}