iPhone第三节:UITableView(2)

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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];}@end

View==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//}@end

Controller==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{    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;}@end

View==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

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