UI09-UITableViewCell

ViewController.m

#import "ViewController.h"
#import "CustomTableViewController.h"
@interface ViewController ()<UITableViewDelegate, UITableViewDataSource>
//声明tableview
@property (nonatomic, strong) UITableView *tableview;
//数据源数组
@property (nonatomic, strong) NSMutableArray *dataSource;
//刷新控件
@property (nonatomic, strong) UIRefreshControl *refreshControl;

@end

@implementation ViewController

- (instancetype)initWithCoder:(NSCoder *)coder
{
    self = [super initWithCoder:coder];
    if (self) {
        self.title = @"table view";
    }
    return self;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    //初始化数据源
    _dataSource = [UIFont familyNames].mutableCopy;
    //实例化tabelview
    _tableview = [[UITableView alloc]initWithFrame:self.view.bounds style:UITableViewStylePlain];
    //行高
    _tableview.rowHeight = 70.0;
    //代理
    _tableview.dataSource = self;
    _tableview.delegate = self;
    //注册cell
    [_tableview registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cell"];
    //添加到视图
    [self.view addSubview:_tableview];
    
    //next
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"next" style:UIBarButtonItemStylePlain target:self action:@selector(nextAction:)];
    
    //edit
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"edit" style:UIBarButtonItemStylePlain target:self action:@selector(editAction:)];
    
    //refresh controller
    _refreshControl = [[UIRefreshControl alloc]init];
    _refreshControl.attributedTitle = [[NSAttributedString alloc]initWithString:@"下拉刷新"];
    [_refreshControl addTarget:self action:@selector(beginRefresh:) forControlEvents:UIControlEventValueChanged];
    [_tableview addSubview:_refreshControl];
    
}

- (void)beginRefresh:(UIRefreshControl *)sender{
    //延时2秒钟
    [self performSelector:@selector(addNewFont) withObject:nil afterDelay:2];
    
}
//插入新字体
- (void)addNewFont{
    //停止刷新
    [_refreshControl endRefreshing];
    
    //警告框
    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"提示" message:@"添加新字体" preferredStyle:UIAlertControllerStyleAlert];
    //添加文本框
    [alertController addTextFieldWithConfigurationHandler:nil];
    
    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];
    UIAlertAction *sureAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
       //获取文本框
        UITextField *textField = alertController.textFields[0];
        NSString *newFont = textField.text;
        //1.插入数据到数据源
        [_dataSource insertObject:newFont atIndex:0];
        //2.插入表格行视图（带动画）
        NSIndexPath *indexPath = [NSIndexPath indexPathForItem:0 inSection:0];
        [_tableview insertRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
    }];
    [alertController addAction:cancelAction];
    [alertController addAction:sureAction];
    [self presentViewController:alertController animated:YES completion:nil];
}


- (void)nextAction:(UIBarButtonItem *)sender{
    
    CustomTableViewController *nextController = [[CustomTableViewController alloc]init];
    [self.navigationController pushViewController:nextController animated:YES];
    
}

- (void)editAction:(UIBarButtonItem *)sender{
    [_tableview setEditing:!_tableview.editing animated:YES];
    //三目运算判断是否处于编辑状态，改变标题
    self.navigationItem.leftBarButtonItem.title = _tableview.editing ? @"done" : @"edit";
    
}

//多少个分区
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return _dataSource.count;
}

//返回当前的cell
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    //实例化
    //可重用机制
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];
    //展示到cell
    cell.textLabel.text = _dataSource[indexPath.row];
    return cell;
}

/**< 删除 */
//1.配置删除按钮的 title
- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath{
    return @"删除";
}

//2.提交删除状态
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        //a.删除数据
        [_dataSource removeObjectAtIndex:indexPath.row];
        //b.移除表格行(带动画效果)
        [_tableview deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
    }
}

/**< 移动 */
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath{
    //交换数据源的数据
    [_dataSource exchangeObjectAtIndex:sourceIndexPath.row withObjectAtIndex:destinationIndexPath.row];
}

@end

CustomTableViewController.m

#import "CustomTableViewController.h"
#import "CustomTableViewCell.h"
@interface CustomTableViewController ()
//数据源
@property (nonatomic, strong) NSMutableArray *dataSource;

@end

@implementation CustomTableViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.tableView.rowHeight = 70.0;
    
    [self loadDataSource];
}

- (void)loadDataSource{
    _dataSource = [NSMutableArray array];
    for (NSInteger index = 1; index < 10; index ++) {
        NSDictionary *dic = @{@"image":[NSString stringWithFormat:@"fruit%d",index],@"title":[NSString stringWithFormat:@"我是第%d行",index]};
        [_dataSource addObject:dic];
    }
    //刷新表格
    [self.tableView reloadData];
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

    return 1;
}

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

    return _dataSource.count;
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *cellIdentifer = @"customcell";
    CustomTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifer];
    if (!cell) {
        cell = [[CustomTableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifer];
    }
    //获取到数据
    NSDictionary *dic = _dataSource[indexPath.row];
    cell.logoImageViw.image = [UIImage imageNamed:dic[@"image"]];
    cell.titleInfoLabel.text = dic[@"title"];
    return cell;
}

//表头高度
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{
    return 40.0;
}

//自定义表头
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
    UIView *aView = [[UIView alloc]init];
    aView.backgroundColor = [UIColor cyanColor];
    //只要添加自定义控件即可
    UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(170, 0, 70, 40)];
    label.text = @"蔬菜";
    [aView addSubview:label];
    return aView;
}

//指定每一行 cell 的高度
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
    //指定第一行的大小
    if (indexPath.row == 1) {
        return 60.0;
    }
    return 70.0;
}

@end

CustomTableViewCell.m

#import "CustomTableViewCell.h"

@implementation CustomTableViewCell

- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        [self setupUI];
        
    }
    return self;
}

- (void)setupUI{
    /**< 图片*/
    _logoImageViw = [[UIImageView alloc]initWithFrame:CGRectMake(15.0, 10.0, 50, 50)];
    //背景颜色
   // _logoImageViw.backgroundColor = [UIColor redColor];
    /**< 阴影 */
    _logoImageViw.layer.shadowColor = [UIColor blackColor].CGColor;
    _logoImageViw.layer.shadowOpacity = 0.5;
    _logoImageViw.layer.shadowOffset = CGSizeMake(3, 3);
    //加载到self上或者加载到self.contentView上
    [self.contentView addSubview:_logoImageViw];
    
    /**< 标题 */
    _titleInfoLabel = [[UILabel alloc]initWithFrame:CGRectMake(CGRectGetMaxX(_logoImageViw.frame) + 20, 20, 150, 30)];
    //_titleInfoLabel.backgroundColor = [UIColor redColor];
    [self.contentView addSubview:_titleInfoLabel];
}

@end