1.前言

近日碰到了UITableView的多選刪除操作，雖然不是太復(fù)雜，但是還是做個記錄吧，以后再遇到可以直接使用了，同時也希望能對有需要的人帶來幫助。

2.效果展示

包含功能有：全選，全不選，多個刪除，單個左滑刪除

未命名.gif

3.代碼及注釋

#import "SelectAndDeleteVC.h"

@interface SelectAndDeleteVC ()<UITableViewDelegate, UITableViewDataSource>
@property (nonatomic, strong) UITableView *tableView;
@property (nonatomic, strong) NSMutableArray *dataArray;
//底部刪除View
@property (nonatomic, strong) UIView *bottomView;
@property (nonatomic, strong) UIButton *selectButton;
@end

@implementation SelectAndDeleteVC

- (void)viewDidLoad {
    [super viewDidLoad];
    
    _dataArray = [[NSMutableArray alloc] initWithArray:@[@"測試數(shù)據(jù)1",@"測試數(shù)據(jù)2",@"測試數(shù)據(jù)3"]];
    
    [self drawView];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    
}

- (void)drawView{
    
    UIBarButtonItem *item = [[UIBarButtonItem alloc] initWithTitle:@"編輯" style:UIBarButtonItemStylePlain target:self action:@selector(rightItemAction:)];
    self.navigationItem.rightBarButtonItem = item;
    
    _tableView = [[UITableView alloc] initWithFrame:self.view.frame style:UITableViewStylePlain];
    _tableView.delegate = self;
    _tableView.dataSource = self;
    //在編輯時可以多選，開啟后就顯示圓形選擇框
    _tableView.allowsMultipleSelectionDuringEditing = YES;
    _tableView.tableFooterView = [[UIView alloc] init];
    [self.view addSubview:_tableView];
    
    [self.view addSubview:self.bottomView];
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return _dataArray.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
    }
    
    cell.textLabel.text = _dataArray[indexPath.row];
    
    return cell;
}


- (UIView *)bottomView{
    if (!_bottomView){
        _bottomView = [[UIView alloc] initWithFrame:CGRectMake(0, ScreenHeight , ScreenWidth, 50*UIRate)];
        _bottomView.backgroundColor = [UIColor whiteColor];
        
        UIButton *selectButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, ScreenWidth/2.0, 50*UIRate)];
        [selectButton setTitle:@"全選" forState:UIControlStateNormal];
        [selectButton setBackgroundColor:[UIColor grayColor]];
        [selectButton addTarget:self action:@selector(selectButtonAction:) forControlEvents:UIControlEventTouchUpInside];
        [_bottomView addSubview:selectButton];
        
        UIButton *deleteButton = [[UIButton alloc] initWithFrame:CGRectMake(ScreenWidth/2.0, 0, ScreenWidth/2.0, 50*UIRate)];
        [deleteButton setTitle:@"刪除" forState:UIControlStateNormal];
        [deleteButton setBackgroundColor:[UIColor redColor]];
        [deleteButton addTarget:self action:@selector(deleteBtnAction:) forControlEvents:UIControlEventTouchUpInside];
        [_bottomView addSubview:deleteButton];
        
    }
    return _bottomView;
}

//走了左滑刪除
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
    DLog(@"走了左滑刪除%ld", (long)indexPath.row);
    if (editingStyle == UITableViewCellEditingStyleDelete){//刪除操作
        [self.dataArray removeObjectAtIndex:indexPath.row];
        
        //刪除某行并配有動畫
        [self.tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
    }
}

//更改左滑后的字體顯示
- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath{
    //如果系統(tǒng)是英文，會顯示delete,這里可以改成自己想顯示的內(nèi)容
    return @"刪除";
}

//全選
- (void)selectButtonAction:(UIButton *)button{
    
    if ([button.currentTitle isEqualToString:@"全選"]){
        //遍歷循環(huán)
        [self.dataArray enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
            //全選
            [self.tableView selectRowAtIndexPath:[NSIndexPath indexPathForRow:idx inSection:0] animated:YES scrollPosition:UITableViewScrollPositionNone];
        }];
        
        [button setTitle:@"全不選" forState:UIControlStateNormal];
    }else {
        //刷新數(shù)據(jù)即可實現(xiàn)全不選狀態(tài)
        [self.tableView reloadData];
        [button setTitle:@"全選" forState:UIControlStateNormal];
    }
}

//刪除
- (void)deleteBtnAction:(UIButton *)button{
    
    //indexPathsForSelectedRows 可以獲得選中的行
    NSArray *array = self.tableView.indexPathsForSelectedRows;
    if (!array.count){
        [LCProgressHUD showMessage:@"請選擇要刪除的列表"];
        return;
    }
    
    NSMutableArray *selectArray = [[NSMutableArray alloc] init];
    
    for (NSIndexPath *indexPath in array){
        //取出數(shù)據(jù)
        [selectArray addObject:self.dataArray[indexPath.row]];
    }
    //刪除數(shù)據(jù)
    [self.dataArray removeObjectsInArray:selectArray];
    //刪除行
    [self.tableView deleteRowsAtIndexPaths:array withRowAnimation:UITableViewRowAnimationFade];
}

#pragma mark 右編輯
- (void)rightItemAction:(UIBarButtonItem *)item
{
    if (!self.tableView.isEditing){
        item.title = @"取消";
        //伴隨編輯動畫
        [self.tableView setEditing:YES animated:YES];
        
        [UIView animateWithDuration:0.5 animations:^{
            self.bottomView.frame = CGRectMake(0, ScreenHeight - 50, ScreenWidth, 50);
        }];
        
    }else {
        item.title = @"編輯";
        [self.tableView setEditing:NO animated:YES];
        [UIView animateWithDuration:0.5 animations:^{
            self.bottomView.frame = CGRectMake(0, ScreenHeight, ScreenWidth, 50);
        }];
    }
}
@end