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自定义单元格

发布时间:2020-07-07 16:28:03 来源:网络 阅读:252 作者:天使的聆听 栏目:开发技术

自定义单元格:三种方法

方法一:向contentView添加子视图

#import "ViewController.h"


@interface ViewController ()


@end


@implementation ViewController


- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    UITableView *tableView = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain];

    //内容下移64px

    tableView.contentInset = UIEdgeInsetsMake(64, 0, 0, 0);

    tableView.dataSource = self;

    tableView.delegate = self;

    //获取数据

    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"Films" ofType:@"plist"];

    self.dataArray = [[NSArray alloc] initWithContentsOfFile:filePath];

    [self.view addSubview:tableView];

}

#pragma Mark -UITableViewDataSource

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

    return self.dataArray.count;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

    NSDictionary *dic = [self.dataArray objectAtIndex:indexPath.row];

    NSString *identifier = @"MyCell";

    UITableViewCell *tableVC = [tableView dequeueReusableCellWithIdentifier:identifier];

    if (tableVC == nil) {

        tableVC = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];

        //注意:控件的创建应该跟在tableVC的初始化放在一起,确保tableVC当中只有自己创建的这一个控件,不会出现空间的叠加(共有)

        //添加图片

        UIImageView *p_w_picpathView = [[UIImageView alloc] initWithFrame:CGRectMake(20, 10, 150, 180)];

        p_w_picpathView.tag = 100;

        [tableVC.contentView addSubview:p_w_picpathView];

        //添加电影名称

        UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(190, 10, 200, 40)];

        titleLabel.tag = 101;

        titleLabel.font = [UIFont boldSystemFontOfSize:16];

        titleLabel.textColor = [UIColor blueColor];

        [tableVC.contentView addSubview:titleLabel];

        //添加电影评分

        UILabel *ratingLabel = [[UILabel alloc] initWithFrame:CGRectMake(190, 60, 100, 40)];

        ratingLabel.tag = 102;

        ratingLabel.font = [UIFont boldSystemFontOfSize:14];

        ratingLabel.textColor = [UIColor cyanColor];

        [tableVC.contentView addSubview:ratingLabel];

        //添加电影的年份

        UILabel *yearLabel = [[UILabel alloc] initWithFrame:CGRectMake(190, 110, 100, 20)];

        yearLabel.tag = 103;

        yearLabel.font = [UIFont boldSystemFontOfSize:12];

        yearLabel.textColor = [UIColor orangeColor];

        [tableVC.contentView addSubview:yearLabel];

    }

    //对控件赋值应该放在外面(特有)

    //图片

    UIImageView *p_w_picpathView = (UIImageView *)[tableVC.contentView viewWithTag:100];

    p_w_picpathView.p_w_picpath = [UIImage p_w_picpathNamed:[dic objectForKey:@"p_w_picpath"]];

    //名字

    UILabel *titleLabel = (UILabel *)[tableVC.contentView viewWithTag:101];

    titleLabel.text = [NSString stringWithFormat:@"电影:%@",[dic objectForKey:@"title"]];

    //评分

    UILabel *ratingLabel = (UILabel *)[tableVC.contentView viewWithTag:102];

    ratingLabel.text = [NSString stringWithFormat:@"评分:%@",[dic objectForKey:@"rating"]];

    //年份

    UILabel *yearLabel = (UILabel *)[tableVC.contentView viewWithTag:103];

    yearLabel.text = [NSString stringWithFormat:@"年份:%@",[dic objectForKey:@"year"]];

    return tableVC;

}

#pragma Mark -UITableViewDelegate

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

{

    return 200;

}

@end

方法二:先创建一个xib文件---(然后在xib上拖一个tableCell并设置大小---(在tableCell上拖需要的控件并设置控件的属性和tag值-----(将xib文件中tableCell的identifier该为设置的identifier

#import "ViewController.h"


@interface ViewController ()


@end


@implementation ViewController


- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    UITableView *tableView = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain];

    tableView.contentInset = UIEdgeInsetsMake(64, 0, 0, 0);

    tableView.delegate =self;

    tableView.dataSource = self;

    [self.view addSubview:tableView];

    //定制单元格的高度

    tableView.rowHeight = 200;

    //获取数据源

    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"Films" ofType:@"plist"];

    self.dataArray = [NSArray arrayWithContentsOfFile:filePath];

}

#pragma mark -UITableViewDataSource

#pragma mark -UITableViewDelegate

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

    return self.dataArray.count;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

    NSString *identifier = @"MyCell";

    UITableViewCell *tableVC = [tableView dequeueReusableCellWithIdentifier:identifier];

    if (tableVC == nil) {

        tableVC =[[[NSBundle mainBundle] loadNibNamed:@"MyCell" owner:nil options:nil]lastObject];

    }

    NSDictionary *dic = self.dataArray[indexPath.row];

    //图片

    UIImageView *p_w_picpathView = (UIImageView *)[tableVC.contentView viewWithTag:100];

    p_w_picpathView.p_w_picpath = [UIImage p_w_picpathNamed:[dic objectForKey:@"p_w_picpath"]];

    //电影名

    UILabel *titleLabel = (UILabel *)[tableVC.contentView viewWithTag:101];

    titleLabel.text = [NSString stringWithFormat:@"电影:%@",[dic objectForKey:@"title"]];

    //评分

    UILabel *ratingLabel = (UILabel *)[tableVC.contentView viewWithTag:102];

    ratingLabel.text = [NSString stringWithFormat:@"评分:%@",[dic objectForKey:@"rating"]];

    //年份

    UILabel *yearLabel = (UILabel *)[tableVC.contentView viewWithTag:103];

    yearLabel.text = [NSString stringWithFormat:@"年份:%@",[dic objectForKey:@"year"]];

    return tableVC;

}

@end

方法三:

(1)方法一:在storyboard文件中拖一个tableView,然后再拖一个tableCell并设置大小---(在tableCell上拖需要的控件并设置控件的属性-----(建立一个类继承于UITableViewCell,将各个控件在此文件中声明并声明一个字典(根据情况而定)接收ViewContoller中值-------(将storyboard文件中tableCell的identifier该为设置的identifier,并继承于新建的文件。

主要代码写在声明的字典的set方法中。

#import "ViewController.h"

#import "MovieTableViewCell.h"


@interface ViewController ()


@end


@implementation ViewController


- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"Films" ofType:@"plist"];

    self.dataArray = [NSArray arrayWithContentsOfFile:filePath];

}

#pragma mark -UITableViewDelegate

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

    return self.dataArray.count;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

    //V(View)

    MovieTableViewCell *tableVC = [tableView dequeueReusableCellWithIdentifier:@"MyCell" forIndexPath:indexPath];

    //在控制器中,不应该设置太多视图自己需要显示的内容,控制器充当MVC架构模式中的C,需要做的应该啊hi把M------->V

    //M(Model)

    NSDictionary *dic = self.dataArray[indexPath.row];

    //dic-------->Cell

    tableVC.dataDic = dic;

    return tableVC;

}

@end

#import "MovieTableViewCell.h"


@implementation MovieTableViewCell

//当视图从xib文件或者storyboard中加载时,走这个方法,相当于初始化方法

- (void)awakeFromNib {

    // Initialization code

}


- (void)setSelected:(BOOL)selected animated:(BOOL)animated {

    [super setSelected:selected animated:animated];


    // Configure the view for the selected state

}

-(void)setDataDic:(NSDictionary *)dataDic

{

    if (_dataDic != dataDic) {

        _dataDic = dataDic;

        //此时确保值能传过来

        self.imgView.p_w_picpath = [UIImage p_w_picpathNamed:[self.dataDic objectForKey:@"p_w_picpath"]];

        self.titleLabel.text = [NSString stringWithFormat:@"电影:%@",[self.dataDic objectForKey:@"title"]];

        self.ratingLabel.text = [NSString stringWithFormat:@"评分:%@",[self.dataDic objectForKey:@"rating"]];

        self.yearLabel.text = [NSString stringWithFormat:@"年份:%@",[self.dataDic objectForKey:@"year"]];

    }

}

@end

(2)(此方法比较常用)方法二:建立一个类继承于UITableViewCell和创建一个类MoviewModel继承与NSObject-------(将各个控件在继承于UITableViewCell文件中创建并声明一个MovieModel接收-----(在ViewContoller文件中创建MovieModel,接收值。

#import "ViewController.h"

#import "MovieTableViewCell.h"

#import "MovieModel.h"


@interface ViewController ()


@end


@implementation ViewController


- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    UITableView *tableView = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain];

    tableView.contentInset = UIEdgeInsetsMake(64, 0, 0, 0);

    tableView.delegate =self;

    tableView.dataSource = self;

    [self.view addSubview:tableView];

    tableView.rowHeight = 200;

    //获取数据源

//    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"Films" ofType:@"plist"];

//    self.dataArray = [NSArray arrayWithContentsOfFile:filePath];

    //由原来的dataDic改为装movieModel

    NSArray *dataArr = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"Films" ofType:@"plist"]];

    NSMutableArray *mArray = [NSMutableArray array];

    for (NSDictionary *dic in dataArr) {

        NSString *title = [dic objectForKey:@"title"];

        NSString *p_w_picpathName = [dic objectForKey:@"p_w_picpath"];

        NSString *rating = [dic objectForKey:@"rating"];

        NSString *year = [dic objectForKey:@"year"];

        //将数据填充到movieModel

        MovieModel *model = [[MovieModel alloc] init];

        model.title = title;

        model.p_w_picpathName = p_w_picpathName;

        model.ratingLabel = rating;

        model.yearLabel = year;

        [mArray addObject:model];

    }

    self.dataArray = mArray;


}

#pragma mark -UITableViewDelegate

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

    return self.dataArray.count;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

    NSString *identifier = @"MyCell";

    MovieTableViewCell *tableVC = [tableView dequeueReusableCellWithIdentifier:identifier];

    if (tableVC == nil) {

        tableVC = [[MovieTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];

    }

//    NSDictionary *dic = self.dataArray[indexPath.row];

//    tableVC.dataDic = dic;

    tableVC.movieModel = self.dataArray[indexPath.row];

    return tableVC;

}

@end

#import "MovieTableViewCell.h"


@implementation MovieTableViewCell

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier

{

    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];

    if (self != nil) {

        //........

        [self initViews];

    }

    return self;

}

- (void)awakeFromNib {

    // Initialization code

    [super awakeFromNib];

    [self initViews];

}


- (void)setSelected:(BOOL)selected animated:(BOOL)animated {

    [super setSelected:selected animated:animated];


    // Configure the view for the selected state

}

//- (void)setDataDic:(NSDictionary *)dataDic

//{

//    if (_dataDic != dataDic) {

//        _dataDic = dataDic;

//        //手动调动layoutSubviews

//        [self setNeedsLayout];

//    }

//}

//初始化自身的子视图

- (void)initViews

{

    //添加图片

    UIImageView *p_w_picpathView = [[UIImageView alloc] initWithFrame:CGRectMake(20, 10, 150, 180)];

    p_w_picpathView.tag = 100;

    [self.contentView addSubview:p_w_picpathView];

    //添加电影名称

    UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(190, 10, 200, 40)];

    titleLabel.tag = 101;

    titleLabel.font = [UIFont boldSystemFontOfSize:16];

    titleLabel.textColor = [UIColor blueColor];

    [self.contentView addSubview:titleLabel];

    //添加电影评分

    UILabel *ratingLabel = [[UILabel alloc] initWithFrame:CGRectMake(190, 60, 100, 40)];

    ratingLabel.tag = 102;

    ratingLabel.font = [UIFont boldSystemFontOfSize:14];

    ratingLabel.textColor = [UIColor cyanColor];

    [self.contentView addSubview:ratingLabel];

    //添加电影的年份

    UILabel *yearLabel = [[UILabel alloc] initWithFrame:CGRectMake(190, 110, 100, 20)];

    yearLabel.tag = 103;

    yearLabel.font = [UIFont boldSystemFontOfSize:12];

    yearLabel.textColor = [UIColor orangeColor];

    [self.contentView addSubview:yearLabel];


}

-(void)setMovieModel:(MovieModel *)movieModel

{

    if (_movieModel != movieModel) {

        _movieModel = movieModel;

        [self setNeedsLayout];

    }

}

//当子视图重新布局时需要调用的方法

- (void)layoutSubviews

{

    //一定注意(不可缺少)

    [super layoutSubviews];

    //图片

    UIImageView *p_w_picpathView = (UIImageView *)[self.contentView viewWithTag:100];

//    p_w_picpathView.p_w_picpath = [UIImage p_w_picpathNamed:[self.dataDic objectForKey:@"p_w_picpath"]];

    p_w_picpathView.p_w_picpath = [UIImage p_w_picpathNamed:self.movieModel.p_w_picpathName];

    //名字

    UILabel *titleLabel = (UILabel *)[self.contentView viewWithTag:101];

//    titleLabel.text = [NSString stringWithFormat:@"电影:%@",[self.dataDic objectForKey:@"title"]];

    titleLabel.text = [NSString stringWithFormat:@"电影:%@",self.movieModel.title];

    //评分

    UILabel *ratingLabel = (UILabel *)[self.contentView viewWithTag:102];

//    ratingLabel.text = [NSString stringWithFormat:@"评分:%@",[self.dataDic objectForKey:@"rating"]];

    ratingLabel.text = [NSString stringWithFormat:@"评分:%@",self.movieModel.ratingLabel];

    //年份

    UILabel *yearLabel = (UILabel *)[self.contentView viewWithTag:103];

//    yearLabel.text = [NSString stringWithFormat:@"年份:%@",[self.dataDic objectForKey:@"year"]];

    yearLabel.text = [NSString stringWithFormat:@"年份:%@",self.movieModel.yearLabel];

}

@end

MovieModel.h文件

#import <Foundation/Foundation.h>


@interface MovieModel : NSObject

@property (nonatomic,copy)NSString *p_w_picpathName;

@property (nonatomic,copy)NSString *title;

@property (nonatomic,copy)NSString *rating;

@property (nonatomic,copy)NSString *year;

@end


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