UITableView删除添加和移动

#import "RootTableViewController.h"
 
@interface RootTableViewController ()
 
@property (nonatomic, strong) NSMutableArray *allDataArray;
@property (nonatomic, assign) UITableViewCellEditingStyle style;
 
@end
 
@implementation RootTableViewController
 
- (void)viewDidLoad {
    [super viewDidLoad];
 
    self.view.backgroundColor = [UIColor lightGrayColor];
 
    // 设置导航栏
    self.navigationController.navigationBar.barTintColor = [UIColor orangeColor];
    self.title = @"尹浩";
    self.navigationController.navigationBar.tintColor = [UIColor whiteColor];
    [self.navigationController.navigationBar setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor whiteColor], NSFontAttributeName : [UIFont systemFontOfSize:]}];
 
    // 处理数据
    [self handleData];
 
    // 注册tableView
    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cell"];
 
    // 添加右按钮
    UIBarButtonItem *button1 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:self action:@selector(rightBarButtonItemClick:)];
 
    UIBarButtonItem *button2 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemBookmarks target:self action:@selector(moveClick:)];
 
    self.navigationItem.rightBarButtonItems = @[button1, button2];
 
    // 添加左按钮
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(leftBarButtonItemClick:)];
}
 
// 处理数据
- (void)handleData {
 
    // 1.初始化大数组
    self.allDataArray = [NSMutableArray array];
 
    // 2.定义三个数存放每一组学生的姓名
    NSMutableArray *array1 = @[@"泰隆", @"刀妹", @"卡牌大师", @"提莫", @"艾希", @"蛮王"].mutableCopy;
 
    NSMutableArray *array2 = @[@"盖聂", @"卫庄", @"天明", @"少羽", @"高月"].mutableCopy;
 
    NSMutableArray *array3 = @[@"尹浩", @"尹笑", @"尹双浩", @"尹冬冬", @"尹句号"].mutableCopy;
 
    // 3.将所有学生存放到大数组中
    [self.allDataArray addObject:array1];
    [self.allDataArray addObject:array2];
    [self.allDataArray addObject:array3];
 
}
 
#pragma mark - Table view data source
 
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
 
    return self.allDataArray.count;
}
 
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
 
    return [self.allDataArray[section] count];
}
 
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
 
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];
 
    // 设置数据
    NSArray *array = [self.allDataArray objectAtIndex:indexPath.section];
    cell.textLabel.text = array[indexPath.row];
 
    return cell;
}
 
// 设置行高
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
 
    return ;
}
 
// 取消选中状态
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
 
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
}
 
#pragma mark - 编辑（删除和添加）
 
// 右按钮点击事件
- (void)rightBarButtonItemClick:(UIBarButtonItem *)sender {
 
    self.style = UITableViewCellEditingStyleDelete;
 
    // 让cell处于编辑状态
    [self.tableView setEditing:!self.tableView.editing animated:YES];
 
}
 
// 左按钮点击事件
- (void)leftBarButtonItemClick:(UIBarButtonItem *)sender {
 
    self.style = UITableViewCellEditingStyleInsert;
 
    [self.tableView setEditing:!self.tableView.editing animated:YES];
}
 
// 指定哪些cell可以编辑
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
 
    if (indexPath.section ==  || indexPath.section == ) {
        return YES;
    }
 
    return NO;
 
}
 
// 设置编辑样式
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {
 
    return self.style;
}
 
// 完成编辑
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
 
    if (editingStyle == UITableViewCellEditingStyleInsert) {
 
        [self.allDataArray[indexPath.section] insertObject:@"星魂" atIndex:indexPath.row + ];
 
        NSIndexPath *newIndexPath = [NSIndexPath indexPathForRow:indexPath.row +  inSection:indexPath.section];
        [tableView insertRowsAtIndexPaths:@[newIndexPath] withRowAnimation:UITableViewRowAnimationTop];
 
    } else if (editingStyle == UITableViewCellEditingStyleDelete) {
 
        [self.allDataArray[indexPath.section] removeObjectAtIndex:indexPath.row];
 
        [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationRight];
    }
}
 
#pragma mark - 移动
 
// 让cell处于编辑状态
- (void)moveClick:(UIBarButtonItem *)sender {
 
    [self.tableView setEditing:!self.tableView.editing animated:YES];
}
 
// 设置哪些cell可以移动
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
 
    return YES;
}
 
// 开始移动
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath {
 
    // 获取需要修改的数据
    NSString *sourceName = [self.allDataArray[sourceIndexPath.section] objectAtIndex:sourceIndexPath.row];
 
    // 先将数据从当前位置移除
    [self.allDataArray[sourceIndexPath.section] removeObjectAtIndex:sourceIndexPath.row];
 
    // 再将数据插入到对应的位置
    [self.allDataArray[destinationIndexPath.section] insertObject:sourceName atIndex:destinationIndexPath.row];
 
}
 
// 防止随意移动
- (NSIndexPath *)tableView:(UITableView *)tableView targetIndexPathForMoveFromRowAtIndexPath:(NSIndexPath *)sourceIndexPath toProposedIndexPath:(NSIndexPath *)proposedDestinationIndexPath {
 
    if (sourceIndexPath.section == proposedDestinationIndexPath.section) {
        return proposedDestinationIndexPath;
    } else {
        return sourceIndexPath;
    }
}
 
@end