//

//  RootViewController.m

//  UI__TableView的编辑

//

//  Created by dllo on 16/3/17.

//  Copyright © 2016年 dllo. All rights reserved.

//

#import "RootViewController.h"

@interface RootViewController ()

<

    UITableViewDataSource,

    UITableViewDelegate

>

@property (nonatomic, retain) UITableView *tableView;

@property (nonatomic, retain) NSMutableArray *arr;

@end

@implementation RootViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    self.view.backgroundColor = [UIColor cyanColor];

    self.navigationController.navigationBar.translucent = NO;

    self.arr = [NSMutableArray arrayWithObjects:@"宋江", @"卢俊义", @"吴用", @"公孙胜", @"关胜", @"林冲", @"秦明" ,@"呼延灼" , @"花荣",@"柴进", @"李应", @"朱仝",@"鲁智深",@"武松", @"徐宁", @"张清", @"杨志", @"董平", @"索超", @"戴宗", @"刘唐", @"李逵", @"史进", @"穆弘", @"雷横", @"李俊",nil];

    self.tableView = [[UITableView alloc] initWithFrame:CGRectMake(, , self.view.frame.size.width, self.view.frame.size.height - )];

    [self.view addSubview:self.tableView];

    self.tableView.dataSource = self;

    self.tableView.delegate = self;

    [_tableView release];

    // 注册

    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:NSStringFromClass([UITableViewCell class])];

    //tableView 的编辑

    //右上角添加一个编辑按钮

    self.navigationItem.rightBarButtonItem = self.editButtonItem;

    //开启编辑模式

    //[self.tableView setEditing:YES animated:YES];

    //把tableView往下推200

    self.tableView.contentInset = UIEdgeInsetsMake(, , , );

    UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(, -, self.view.frame.size.width, )];

    imageView.image = [UIImage imageNamed:@"05.jpg"];

    imageView.tag = ;

    //将图片加到tableView的header

    //self.tableView.tableHeaderView = imageView;

    [self.tableView addSubview:imageView];

    [imageView release];

    //打印结构体

    NSLog(@"%@", NSStringFromCGRect(self.view.frame));

}

- (void)scrollViewDidScroll:(UIScrollView *)scrollView {

    //scrollView这儿是TableView

    NSLog(@"%@", [scrollView class]);

    // 以后在页面里同时存在tableView和scrollView时. 要事先判断当前那个控件触发的协议方法, 避免因为没有判断造成错误的操作

    //图片下拉变形

    NSLog(@"%f", scrollView.contentOffset.y);

    CGFloat yOffset = self.tableView.contentOffset.y;

    UIImageView *imageView = (UIImageView *)[self.view viewWithTag:];

    if (yOffset < ) {

        imageView.frame = CGRectMake(, yOffset, self.view.frame.size.width, -yOffset);

    }

}

//重写系统的编辑按钮的点击方法

- (void)setEditing:(BOOL)editing animated:(BOOL)animated {

    [super setEditing:editing animated:animated];

    [self.tableView setEditing:editing animated:animated];

}

#pragma mark -- 设置那些行可以编辑, 通过返回yes和no来判断

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {

    return YES;

}

#pragma mark -- 设置编辑的 样式, 默认是删除, 还有添加和多选 insert | delete(多选)

- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {

    return  UITableViewCellEditingStyleDelete;

}

// 状态只有是delete的时候可以左划出现删除

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {

    NSLog(@"delete");

    // 根据不同的判断实现不同的效果

    if (editingStyle == UITableViewCellEditingStyleDelete) {

        //要实现删除, 第一件事就是删除对应的数组里面的数据

        [self.arr removeObjectAtIndex:indexPath.row];

      //  [self.tableView reloadData];

        [self.tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationMiddle];

    }

}

//改变红色区域的文字

- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath {

    return @"";

}

// 改变划出来的区域的个数和颜色和文字

- (nullable NSArray<UITableViewRowAction *> *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath {

    UITableViewRowAction *firstAction = [UITableViewRowAction rowActionWithStyle: title:@"你猜" handler:^(UITableViewRowAction * _Nonnull action, NSIndexPath * _Nonnull indexPath) {

    }];

    firstAction.backgroundColor = [UIColor yellowColor];

    //第二个rowAction

    UITableViewRowAction *secAction = [UITableViewRowAction rowActionWithStyle: title:@"我才不猜" handler:^(UITableViewRowAction * _Nonnull action, NSIndexPath * _Nonnull indexPath) {

        //在block里面, 写对应的点击事件

        NSLog(@"");

    }];

    return @[firstAction, secAction];

}

// 移动

- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath {

    // 1. 现获取要移动的数据

    NSString *str = [self.arr[sourceIndexPath.row] retain];

    // 2. 把数组里的相应的字符串除掉

    [self.arr removeObjectAtIndex:sourceIndexPath.row];

    // 3. 把新的字符串插入 到数组

    [self.arr insertObject:str atIndex:destinationIndexPath.row];

    [str release];

}

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

    return self.arr.count;

}

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

   //注册 新方法

    UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:NSStringFromClass([UITableViewCell class]) forIndexPath:indexPath];

    cell.textLabel.text = self.arr[indexPath.row];

    return  cell;

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

- (void)dealloc {

    [_tableView release];

    [_arr release];

    [super dealloc];

}

/*

#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

    // Get the new view controller using [segue destinationViewController].

    // Pass the selected object to the new view controller.

}

*/

@end