import "RootViewController.h"

import "Student.h"

@interface RootViewController ()<UITableViewDataSource, UITableViewDelegate>
@property (nonatomic, retain) NSMutableDictionary *stuInfoDic;
@property (nonatomic, retain) UITableView *table;
@end

@implementation RootViewController

(void)dealloc
{
```
[_stuInfoDic release];
[super dealloc];
```
}

(void)viewDidLoad {

[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor whiteColor];
self.navigationItem.title = @"YIem";
// TableView
self.table = [[UITableView alloc] initWithFrame:self.view.frame style:UITableViewStylePlain];
self.table.delegate = self;
self.table.dataSource = self;
self.table.rowHeight = 70;
[self.view addSubview:self.table];
[_table release];
[self gatData];

warning 编辑 1 - 创建编辑按钮

self.navigationItem.rightBarButtonItem = self.editButtonItem;

}

warning 编辑 2 - 关联tableView编辑功能

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

[super setEditing:editing animated:animated];
[self.table setEditing:editing animated:animated];

}

warning 编辑 3 - 设置是否允许编辑

(BOOL)tableView:(UITableView )tableView canEditRowAtIndexPath:(NSIndexPath )indexPath
{
return YES;
}

warning 编辑 4 - 设置编辑样式(无/ 删除/ 插入)

(UITableViewCellEditingStyle)tableView:(UITableView )tableView editingStyleForRowAtIndexPath:(NSIndexPath )indexPath
{
// 按区
// 举例: 前4个区删除样式中间4各区插入剩下无状态
if (indexPath.section < 4) {
```
return UITableViewCellEditingStyleDelete;
```
}
if (indexPath.section >= 4 && indexPath.section < 8) {
```
return UITableViewCellEditingStyleInsert;
```
}
return UITableViewCellEditingStyleNone;
}

warning 编辑 5 - 实现编辑逻辑点击编辑实际功能时触发并且可以左滑动编辑状态

(void)tableView:(UITableView )tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(nonnull NSIndexPath )indexPath
{
NSLog(@"YIEM");
//// 先操作数据 // 可以放在里面
NSString *key = [self.stuInfoDic.allKeys objectAtIndex:indexPath.section];
NSMutableArray *arr = [self.stuInfoDic objectForKey:key];
// 删除分支
if (UITableViewCellEditingStyleDelete == editingStyle) {
```
//// 先操作数据
```
// NSString *key = [self.stuInfoDic.allKeys objectAtIndex:indexPath.section];

// NSMutableArray *arr = [self.stuInfoDic objectForKey:key];

    //    Student *stu = [arr objectAtIndex:indexPath.row];
    // 删除学生信息
    [arr removeObjectAtIndex:indexPath.row];
    
    
    //// 后操作界面
    //    [self.table reloadData]; // 整体刷新
    // 删除界面某一行
    [self.table deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationLeft];
    // 删除区
    

    
}
// 插入分支
if (UITableViewCellEditingStyleInsert == editingStyle) {
    
    Student *stu = [[Student alloc] init];
    stu.name = @"全❤强";
    stu.phoneNumber = @"101010101010";
    stu.picture = @"image27.jpg";//////
    // 插入数据
    [arr insertObject:stu atIndex:indexPath.row];
    // 操作界面
    [self.table insertRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationTop];
    
    
    
}

}

yiem