iPhone第三节:UITableView(2)

UITableView(2)练习(微博)、课堂(相册)

练习==微博

Model==Blog

#import <Foundation/Foundation.h>

@interface Blog : NSObject

#pragma mark - 属性
@property (nonatomic,assign) long long Id;//微博id
@property (nonatomic, strong) NSString *profileImageUrl;//头像
@property (nonatomic, strong) NSString *userName;//发送用户
@property (nonatomic, strong) NSString *mbtype;//会员类型
@property (nonatomic, strong) NSString *createdAt;//创建时间
@property (nonatomic, strong) NSString *source;//设备来源
@property (nonatomic, strong) NSString *text;//微博内容

#pragma mark - 方法
#pragma mark 根据字典初始化微博对象
-(Blog *)initWithDictionary:(NSDictionary *)dic;

#pragma mark 初始化微博对象（静态方法）
+(Blog *)blogWithDictionary:(NSDictionary *)dic;

@end
#import "Blog.h"

@implementation Blog

#pragma mark 根据字典初始化微博对象
-(Blog *)initWithDictionary:(NSDictionary *)dic
{
if(self = [super init])
{
self.Id = [dic[@"Id"] longLongValue];
self.profileImageUrl = dic[@"profileImageUrl"];
self.userName = dic[@"userName"];
self.mbtype = dic[@"mbtype"];
self.createdAt = dic[@"createdAt"];
self.source = dic[@"source"];
self.text = dic[@"text"];
}
return self;
}

#pragma mark 初始化微博对象（静态方法）
+(Blog *)blogWithDictionary:(NSDictionary *)dic
{
Blog *blog = [[Blog alloc]initWithDictionary:dic];
return blog;
}

-(NSString *)source
{
return [NSString stringWithFormat:@"来自 %@",_source];
}
@endView==BlogTableViewCell
#import <UIKit/UIKit.h>
@class Blog;
@interface BlogTableViewCell : UITableViewCell

#pragma mark 微博对象
@property (nonatomic, strong) Blog *blog;

#pragma mark 单元格高度
@property (assign, nonatomic) CGFloat height;

@end
#import "BlogTableViewCell.h"
#import "Blog.h"
#import "QuartzCore/QuartzCore.h"

@interface BlogTableViewCell()
{
UIImageView *_avatar;//头像
UIImageView *_mbType;//会员类型
UILabel *_userName;
UILabel *_createAt;
UILabel *_source;
UILabel *_text;
}

@end

@implementation BlogTableViewCell

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self)
{
//头像
_avatar = [[UIImageView alloc] init];
[self.contentView addSubview:_avatar];

//用户名
_userName = [[UILabel alloc] init];
_userName.textColor = [UIColor blackColor];
_userName.font=[UIFont systemFontOfSize:14.0];
[self.contentView addSubview:_userName];

//会员类型
_mbType = [[UIImageView alloc] init];
[self.contentView addSubview:_mbType];
//圆角view
_mbType.layer.cornerRadius = 5;//(像素一半，为圆形，小于一半，为原图形圆角，数值越大圆角越大)
_mbType.layer.masksToBounds = YES;
//边框宽度及颜色设置
// [_mbType.layer setBorderWidth:2];
// [_mbType.layer setBorderColor:([UIColor blueColor]).CGColor]; //设置边框为蓝色
//自动适应,保持图片宽高比
_mbType.contentMode = UIViewContentModeScaleAspectFit;

//日期
_createAt = [[UILabel alloc] init];
_createAt.textColor = [UIColor lightGrayColor];
_createAt.font = [UIFont systemFontOfSize:12.0];
[self.contentView addSubview:_createAt];

//设备
_source = [[UILabel alloc] init];
_source.textColor = [UIColor lightGrayColor];
_source.font = [UIFont systemFontOfSize:12.0];
[self.contentView addSubview:_source];

//内容
_text = [[UILabel alloc] init];
_text.textColor = [UIColor blackColor];
_text.font = [UIFont systemFontOfSize:14];
_text.numberOfLines = 0;
//_text.lineBreakMode = NSLineBreakByWordWrapping;
[self.contentView addSubview:_text];
}
return self;
}

- (void)setBlog:(Blog *)blog
{
_avatar.frame = CGRectMake(10, 10, 40, 40);
_avatar.image = [UIImage imageNamed:blog.profileImageUrl];

CGSize userNameSize = [blog.userName sizeWithAttributes:@{NSFontAttributeName: [UIFont systemFontOfSize:14]}];
CGRect userNameRect=CGRectMake(60, 10, userNameSize.width,userNameSize.height);
_userName.frame = userNameRect;
_userName.text = blog.userName;

_mbType.frame = CGRectMake((CGRectGetMaxX(_userName.frame) + 5), 12, 13, 13);
_mbType.image = [UIImage imageNamed:blog.mbtype];

CGSize createAtSize=[blog.createdAt sizeWithAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:12]}];
CGFloat createAtY = 50 - createAtSize.height;
CGRect createAtRect = CGRectMake(60, createAtY, createAtSize.width, createAtSize.height);
_createAt.frame = createAtRect;
_createAt.text = blog.createdAt;

CGSize sourceSize = [blog.source sizeWithAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:12]}];
CGFloat sourceX = CGRectGetMaxX(_createAt.frame) + 10;
CGFloat sourceY = createAtY;
CGRect sourceRect = CGRectMake(sourceX, sourceY, sourceSize.width,sourceSize.height);
_source.frame = sourceRect;
_source.text = blog.source;

CGSize textSize = [blog.text boundingRectWithSize:CGSizeMake(self.frame.size.width - 20, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName: [UIFont systemFontOfSize:14]} context:nil].size;
_text.frame = CGRectMake(10, 60, textSize.width, textSize.height);
_text.text = blog.text;

_height = CGRectGetMaxY(_text.frame) + 10;

}

#pragma mark 重写选择事件，取消选中
-(void)setSelected:(BOOL)selected animated:(BOOL)animated
{

}

- (void)awakeFromNib
{
// Initialization code
}

//- (void)setSelected:(BOOL)selected animated:(BOOL)animated
//{
// [super setSelected:selected animated:animated];
//
// // Configure the view for the selected state
//}

@endController==BlogViewController
#import "BlogViewController.h"
#import "Blog.h"
#import "BlogTableViewCell.h"

@interface BlogViewController () <UITableViewDataSource, UITableViewDelegate, UIAlertViewDelegate>

{
UITableView * blogTableView;
NSMutableArray * blogArray;
NSMutableArray * cellArray;
}

@end

@implementation BlogViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}

- (void)initTableView
{
//位置，大小，风格
blogTableView = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain];
[self.view addSubview:blogTableView];
//代理、数据源
blogTableView.dataSource = self;
blogTableView.delegate = self;
}

- (void)viewDidLoad
{
[super viewDidLoad];

[self initTableView];

[self initData];

}

- (void)initData
{
NSString * path = [[NSBundle mainBundle] pathForResource:@"BlogList" ofType:@"plist"];
NSArray * array = [NSMutableArray arrayWithContentsOfFile:path];
blogArray = [[NSMutableArray alloc] init];
cellArray = [[NSMutableArray alloc] init];
[array enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
[blogArray addObject:[Blog blogWithDictionary:obj]];
BlogTableViewCell *cell=[[BlogTableViewCell alloc]init];
[cellArray addObject:cell];
}];
}

-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}

//行数
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{

return blogArray.count;
}

//返回每行的单元格
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellId = @"UITableViewCellIdentifierKey1";
BlogTableViewCell *blogCell = [tableView dequeueReusableCellWithIdentifier:cellId];
if(!blogCell)
{
blogCell = [[BlogTableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellId];
}
//分别赋值
Blog * model = blogArray[indexPath.row];
blogCell.blog = model;
return blogCell;
}

#pragma mark 重新设置单元格高度
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
4000

BlogTableViewCell *cell= cellArray[indexPath.row];
cell.blog = blogArray[indexPath.row];
return cell.height;
}

#pragma mark 重写状态样式方法
-(UIStatusBarStyle)preferredStatusBarStyle{
return UIStatusBarStyleLightContent;
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

@end

课堂==相册
Model==Work

#import <Foundation/Foundation.h>

@interface Work : NSObject

@property (nonatomic, strong) NSString * imageWork;
@property (nonatomic, strong) NSString * titleText;
@property (nonatomic, strong) NSString * numText;

- (id)initWithImage:(NSString *)_imageWork andTitle:(NSString *)_titleText andNum:(NSString *)_numText;

@end
#import "Work.h"

@implementation Work

@synthesize imageWork, titleText, numText;

- (id)initWithImage:(NSString *)_imageWork andTitle:(NSString *)_titleText andNum:(NSString *)_numText
{
if (self = [super init])
{
self.imageWork = _imageWork;
self.titleText = _titleText;
self.numText = _numText;
}
return self;
}

@endView==WorkTableViewCell
#import <UIKit/UIKit.h>

@interface WorkTableViewCell : UITableViewCell

@property (nonatomic, strong)UIImageView * workImageView;
@property (nonatomic, strong)UILabel * titleLabel;
@property (nonatomic, strong)UILabel * numLabel;

@end
#import "WorkTableViewCell.h"
#import "GlobalDefine.h"

@implementation WorkTableViewCell

#define RECT(Y) CGRectMake(90, Y, SCWIDTH - 90 - 20, 40)

@synthesize workImageView, titleLabel, numLabel;

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self)
{
workImageView = [[UIImageView alloc] initWithFrame:CGRectMake(10, 10, 70, 70)];
[self.contentView addSubview:workImageView];

titleLabel = [[UILabel alloc] initWithFrame:RECT(15)];
titleLabel.font = [UIFont systemFontOfSize:14.0];
titleLabel.textColor = [UIColor blackColor];
titleLabel.backgroundColor = [UIColor clearColor];
titleLabel.textAlignment = NSTextAlignmentLeft;
[self.contentView addSubview:titleLabel];

numLabel = [[UILabel alloc] initWithFrame:RECT(35)];
numLabel.font = [UIFont systemFontOfSize:14.0];
numLabel.textColor = [UIColor blackColor];
numLabel.backgroundColor = [UIColor clearColor];
numLabel.textAlignment = NSTextAlignmentLeft;
[self.contentView addSubview:numLabel];
}
return self;
}

- (void)awakeFromNib
{
// Initialization code
}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];

// Configure the view for the selected state
}

@end

Controller==ViewControllerTable
#import <UIKit/UIKit.h>

@interface ViewControllerTable : UIViewController

@property (nonatomic, strong) UITableView * tableViewWork;
@property (nonatomic, strong) NSMutableArray * modelArray;

@end
#import "ViewControllerTable.h"
#import "WorkTableViewCell.h"
#import "GlobalDefine.h"
#import "Work.h"

@interface ViewControllerTable () <UITableViewDataSource, UITableViewDelegate, UIAlertViewDelegate>

{
BOOL add; //判断是否是 添加
}

@end

@implementation ViewControllerTable

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
//初始化tableView
- (void)initTableView
{
//位置，大小，风格
_tableViewWork = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, SCWIDTH, SCHEIGHT) style:UITableViewStylePlain];
[self.view addSubview:_tableViewWork];
//代理、数据源
_tableViewWork.dataSource = self;
_tableViewWork.delegate = self;
}

- (void)viewDidLoad
{
[super viewDidLoad];

self.view.backgroundColor = [UIColor whiteColor];
//初始化
[self initTableView];
//可变数组，盛放模型
_modelArray = [[NSMutableArray alloc] initWithCapacity:1];
//初始化模型，并放入数组
for (int i = 0; i < 10; i++)
{
Work * workModel = [[Work alloc] initWithImage:[NSString stringWithFormat:@"%d.jpg", i] andTitle:[NSString stringWithFormat:@"Title %d", i + 1] andNum:[NSString stringWithFormat:@"共有%d张图片", i + 1]];
[_modelArray addObject:workModel];
}

#pragma mark ==deleteButton
UIButton * deleteButton = [UIButton buttonWithType:UIButtonTypeCustom];
deleteButton.frame = CGRectMake(230, 40, 50, 20);
deleteButton.showsTouchWhenHighlighted = YES;
[deleteButton setTitle:@"删除" forState:UIControlStateNormal];
[deleteButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[deleteButton addTarget:self action:@selector(delete) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:deleteButton];

#pragma mark ==addButton
UIButton * addButton = [UIButton buttonWithType:UIButtonTypeCustom];
addButton.frame = CGRectMake(230, 20, 50, 20);
addButton.showsTouchWhenHighlighted = YES;
[addButton setTitle:@"添加" forState:UIControlStateNormal];
[addButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[addButton addTarget:self action:@selector(add) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:addButton];

#pragma mark ==backButton
UIButton * backButton = [UIButton buttonWithType:UIButtonTypeCustom];
backButton.frame = CGRectMake(230, SCHEIGHT - 50, 50, 20);
backButton.showsTouchWhenHighlighted = YES;
[backButton setTitle:@"返回" forState:UIControlStateNormal];
[backButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[backButton addTarget:self action:@selector(back) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:backButton];

}
//行数
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [_modelArray count];
}
//每行单元格
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
//缓存池标识
static NSString * cellId = @"reuseCellId";
//到缓存池寻找cell
WorkTableViewCell * workCell = [tableView dequeueReusableCellWithIdentifier:cellId];
//如果没有则新建，并放入缓存池
if (!workCell)
{
workCell = [[WorkTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellId];
}
//当前行的对象模型
Work * model = [_modelArray objectAtIndex:indexPath.row];
//分别赋值
workCell.workImageView.image = [UIImage imageNamed:model.imageWork];
workCell.titleLabel.text = model.titleText;
workCell.numLabel.text = model.numText;

return workCell;
}
//行高
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 90.0;
}
//删除，add置NO,进入编辑状态，刷新
- (void)delete
{
add = NO;
[self.tableViewWork setEditing:YES animated:YES];
[self.tableViewWork reloadData];
}

- (void)add
{
add = YES;
[self.tableViewWork setEditing:YES animated:YES];
[self.tableViewWork reloadData];
}
//返回，提示
- (void)back
{
UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"退出编辑模式?" message:nil delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
[alert show];
}
//点击确定退出编辑模式
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (buttonIndex == 1)
{
[self.tableViewWork setEditing:NO];
}
}
//根据add，判断进入删除或者插入(默认删除)
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
//return UITableViewCellEditingStyleDelete | UITableViewCellEditingStyleInsert;//多选
if (add)
{
return UITableViewCellEditingStyleInsert;
}
return UITableViewCellEditingStyleDelete;
}
//根据删除、插入状态，进行相应操作，并在操作完成后退出编辑模式
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete)
{
[_modelArray removeObjectAtIndex:indexPath.row];

NSIndexPath * path = [NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section];
[_tableViewWork deleteRowsAtIndexPaths:[NSArray arrayWithObject:path] withRowAnimation:UITableViewRowAnimationFade];
[self.tableViewWork setEditing:NO];
}
else if (editingStyle == UITableViewCellEditingStyleInsert)
{
Work * workModel = [[Work alloc] initWithImage:[NSString stringWithFormat:@"1.jpg"] andTitle:[NSString stringWithFormat:@"Title %d", indexPath.row + 1] andNum:[NSString stringWithFormat:@"共有%d张图片", indexPath.row + 1]];
[_modelArray insertObject:workModel atIndex:indexPath.row];
NSIndexPath * path = [NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section];
[_tableViewWork insertRowsAtIndexPaths:[NSArray arrayWithObject:path] withRowAnimation:UITableViewRowAnimationFade];
[self.tableViewWork setEditing:NO];
}
}

//改变 删除的delete字样
- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath{
return @"删除";
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

@end