UITableView自定義多選刪除樣式

Model.h
<pre>#import <Foundation/Foundation.h>
@interface Model : NSObject
@property(nonatomic,strong)NSString *desc;
+(instancetype)modelWithDesc:(NSString *)desc;
@end</pre>
Model.m
<pre>#import "Model.h"

@implementation Model

+(instancetype)modelWithDesc:(NSString *)desc
{
Model *m=[Model new];
m.desc=desc;
return m;
}
@end</pre>
CustomCell.h
<pre>#import <UIKit/UIKit.h>

@interface CustomCell : UITableViewCell

@property(nonatomic,strong)UILabel *titleLb;
@property(nonatomic,strong)UIButton *selectBtn;

@end</pre>
CustomCell.m
<pre>#import "CustomCell.h"
#define kWidth ([UIScreen mainScreen].bounds.size.width)

@implementation CustomCell

  • (void)awakeFromNib {
    }

  • (void)setSelected:(BOOL)selected animated:(BOOL)animated {
    [super setSelected:selected animated:animated];
    }
    -(id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
    {
    if(self=[super initWithStyle:style reuseIdentifier:reuseIdentifier])
    {
    self.backgroundColor=[UIColor blackColor];
    [self createUI];
    self.selectionStyle=UITableViewCellSelectionStyleNone;
    }
    return self;
    }
    -(void)createUI
    {
    for(UIView *sub in self.contentView.subviews)
    [sub removeFromSuperview];

    //選擇按鈕
    self.selectBtn=[[UIButton alloc]initWithFrame:CGRectMake(-20, 10, 20, 20)];
    [self.selectBtn setImage:[UIImage imageNamed:@"un_select"] forState:UIControlStateNormal];
    [self .selectBtn setImage:[UIImage imageNamed:@"select"] forState:UIControlStateSelected];
    [self.contentView addSubview:self.selectBtn];
    //默認隱藏
    self.selectBtn.hidden=YES;

    // 標題Lb
    self.titleLb=[[UILabel alloc]initWithFrame:CGRectMake(20, 0,kWidth-40, 40)];
    self.titleLb.textColor=[UIColor whiteColor];
    [self.contentView addSubview:self.titleLb];
    }
    @end</pre>
    EditViewController.h
    <pre>#import <UIKit/UIKit.h>

@interface EditViewController : UIViewController

@end</pre>
EditViewController.m
<pre>#import "EditViewController.h"

import "CustomCell.h"

import "Model.h"

#define kWidth ([UIScreen mainScreen].bounds.size.width)
#define kHeight ([UIScreen mainScreen].bounds.size.height)
#define RGB(r,g,b) ([UIColor colorWithRed:(r)/255.0f green:(g)/255.0f blue:(b)/255.0f alpha:1.0f])

@interface EditViewController ()<UITableViewDataSource,UITableViewDelegate>
{
UITableView *_tbView;
NSMutableArray *_dataArray;
NSMutableArray *_delArray;
}
//底部工具欄
@property(nonatomic,strong)UIView *toolView;

@end

@implementation EditViewController

  • (void)viewDidLoad
    {
    [super viewDidLoad];
    [self setUp];
    [self initDataArray];
    [self createTbView];
    [self createBottomTools];
    }
    //初始設置
    -(void)setUp
    {
    self.automaticallyAdjustsScrollViewInsets=NO;
    //導航視圖
    UIView *naviView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, kWidth, 64)];
    naviView.backgroundColor=RGB(157, 25, 36);
    [self.view addSubview:naviView];
    //導航欄標題
    UILabel *titleLb=[[UILabel alloc]initWithFrame:CGRectMake(0, 20, kWidth, 44)];
    titleLb.text=@"編輯分組";
    titleLb.textColor=[UIColor whiteColor];
    titleLb.textAlignment=NSTextAlignmentCenter;
    titleLb.font=[UIFont systemFontOfSize:20];
    [naviView addSubview:titleLb];
    //編輯按鈕
    UIButton *rightBtn=[[UIButton alloc]initWithFrame:CGRectMake(kWidth-60, 27, 40, 30)];
    [rightBtn setTitle:@"編輯" forState:UIControlStateNormal];
    [rightBtn setTitle:@"完成" forState:UIControlStateSelected];
    [rightBtn addTarget:self action:@selector(editAction:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:rightBtn];
    }
    //初始化數組
    -(void)initDataArray
    {
    //初始化數據源數組
    _dataArray=[NSMutableArray array];

    [_dataArray addObject:[Model modelWithDesc:@"我的自選"]];
    [_dataArray addObject:[Model modelWithDesc:@"我關注的牛股"]];
    [_dataArray addObject:[Model modelWithDesc:@"環保牛股"]];
    //初始化刪除數組
    _delArray=[NSMutableArray array];
    }
    //點擊編輯按鈕執行的方法
    -(void)editAction:(UIButton *)sender
    {
    [_tbView setEditing:!_tbView.isEditing animated:YES];
    sender.selected=!sender.isSelected;

    if(sender.isSelected)
    {
    NSArray *allCells=[_tbView visibleCells];
    for(CustomCell *cell in allCells)
    {
    cell.selectBtn.hidden=NO;
    cell.selectBtn.selected=NO;
    }
    //顯示底部toolView
    [self showToolView];
    }
    else
    {
    NSArray *allCells=[_tbView visibleCells];
    for(CustomCell *cell in allCells)
    cell.selectBtn.hidden=YES;

      //隱藏底部toolView
  [self hideToolView];
  
  //執行刪除
  [_dataArray removeObjectsInArray:_delArray];
  //清空刪除數組
  [_delArray removeAllObjects];
  //刷新表視圖
  [_tbView reloadData];

    }
    }
    //表視圖
    -(void)createTbView
    {
    _tbView=[[UITableView alloc]initWithFrame:CGRectMake(0, 64, kWidth, kHeight-64)];
    _tbView.delegate=self;
    _tbView.dataSource=self;
    _tbView.backgroundColor=[UIColor blackColor];
    _tbView.separatorColor=[UIColor whiteColor];
    _tbView.separatorStyle=UITableViewCellSeparatorStyleSingleLine;
    [self.view addSubview:_tbView];
    _tbView.scrollEnabled=NO;
    _tbView.allowsSelectionDuringEditing=YES;
    _tbView.tableFooterView=[UIView new];
    }
    //底部工具欄
    -(void)createBottomTools
    {
    _toolView=[[UIView alloc]initWithFrame:CGRectMake(0, kHeight, kWidth, 49)];
    _toolView.backgroundColor=[UIColor darkGrayColor];
    [self.view addSubview:_toolView];

    //全選按鈕
    UIButton *selectAllBtn=[[UIButton alloc]initWithFrame:CGRectMake(10, 14.5, 20, 20)];
    [selectAllBtn setImage:[UIImage imageNamed:@"un_all_select"] forState:UIControlStateNormal];
    [selectAllBtn setImage:[UIImage imageNamed:@"select"] forState:UIControlStateSelected];
    [selectAllBtn addTarget:self action:@selector(selectAllRows:) forControlEvents:UIControlEventTouchUpInside];
    selectAllBtn.tag=100;
    [_toolView addSubview:selectAllBtn];

    //去選lb
    UILabel *selectAllLb=[[UILabel alloc]initWithFrame:CGRectMake(CGRectGetMaxX(selectAllBtn.frame)+5, 14.5, 40, 20)];
    selectAllLb.textColor=[UIColor whiteColor];
    selectAllLb.text=@"全選";
    selectAllLb.textAlignment=NSTextAlignmentCenter;
    [_toolView addSubview:selectAllLb];

    //刪除數量
    UILabel *deleteCountLb=[[UILabel alloc]initWithFrame:CGRectMake(kWidth-70, 14.5, 60, 20)];
    deleteCountLb.text=@"刪除(0)";
    deleteCountLb.textAlignment=NSTextAlignmentCenter;
    deleteCountLb.textColor=[UIColor whiteColor];
    deleteCountLb.tag=111;
    [_toolView addSubview:deleteCountLb];

    //默認隱藏
    _toolView.hidden=YES;
    }
    //全選
    -(void)selectAllRows:(UIButton *)sender
    {
    sender.selected=!sender.isSelected;
    if(_delArray.count<_dataArray.count)
    {
    for(Model *m in _dataArray)
    {
    if(![_delArray containsObject:m])
    [_delArray addObject:m];
    }

      NSArray *allCells=[_tbView visibleCells];
  for(CustomCell *cell in allCells)
      cell.selectBtn.selected=YES;

    }
    else
    {
    [_delArray removeAllObjects];
    NSArray *allCells=[_tbView visibleCells];
    for(CustomCell *cell in allCells)
    cell.selectBtn.selected=NO;
    }
    [self refreshDeleteCountLb];
    }
    //顯示工具欄
    -(void)showToolView
    {
    __weak typeof(self) weakSelf=self;
    UILabel *deleteCountLb=(UILabel *)[self.toolView viewWithTag:111];
    deleteCountLb.text=@"刪除(0)";
    self.toolView.hidden=NO;
    //全選標記置為否
    UIButton *selectAllBtn=(UIButton *)[self.toolView viewWithTag:100];
    selectAllBtn.selected=NO;
    [UIView animateWithDuration:0.3 animations:^{
    CGFloat ypos=weakSelf.toolView.frame.origin.y;
    ypos=kHeight-49;
    weakSelf.toolView.frame=CGRectMake(0, ypos, kWidth, 49);
    }];
    }
    //隱藏工具欄
    -(void)hideToolView
    {
    __weak typeof(self) weakSelf=self;
    [UIView animateWithDuration:0.3 animations:^{
    CGFloat ypos=weakSelf.toolView.frame.origin.y;
    ypos=kHeight;
    weakSelf.toolView.frame=CGRectMake(0, ypos, kWidth, 49);
    }completion:^(BOOL finished) {
    weakSelf.toolView.hidden=YES;
    }];
    }
    //刷新刪除數量Lb
    -(void)refreshDeleteCountLb
    {
    UILabel *deleteCountLb=(UILabel *)[self.toolView viewWithTag:111];
    deleteCountLb.text=[NSString stringWithFormat:@"刪除(%ld)",_delArray.count];
    }

pragma mark -

pragma mark - UITableView

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return _dataArray.count;
}
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 40;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cid=@"cid";
CustomCell *cel=[tableView dequeueReusableCellWithIdentifier:cid];
if(!cel)
cel=[[CustomCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cid];
Model *model=_dataArray[indexPath.row];
cel.titleLb.text=model.desc;

return cel;

}
//編輯樣式
-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
return UITableViewCellEditingStyleNone;
}
//移動
-(void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath
{
//交換數據
[_dataArray exchangeObjectAtIndex:sourceIndexPath.row withObjectAtIndex:destinationIndexPath.row];

}
//選中時執行的邏輯
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if(_tbView.isEditing)
{
Model *m=_dataArray[indexPath.row];

    if(![_delArray containsObject:m])
    {
        [_delArray addObject:m];
        //若選擇了所有行，則將全選標記置為是
        if(_delArray.count==_dataArray.count)
        {
            //全選標記置為是
            UIButton *selectAllBtn=(UIButton *)[self.toolView viewWithTag:100];
            selectAllBtn.selected=YES;
        }
        CustomCell *cell=(CustomCell *)[_tbView cellForRowAtIndexPath:indexPath];
        cell.selectBtn.selected=YES;
    }
    else
    {
        [_delArray removeObject:m];
        //全選標記置為否
        UIButton *selectAllBtn=(UIButton *)[self.toolView viewWithTag:100];
        selectAllBtn.selected=NO;
        //置為未選中
        CustomCell *cell=(CustomCell *)[_tbView cellForRowAtIndexPath:indexPath];
        cell.selectBtn.selected=NO;
    }
    
    //刷新刪除數Lb
    [self refreshDeleteCountLb];
}

}
@end
</pre>
Appdelegate.m
<pre>
＃import "AppDelegate.h"
＃import "EditViewController.h"
@interface AppDelegate ()
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
EditViewController *edit=[EditViewController new];
UINavigationController *navi=[[UINavigationController alloc]initWithRootViewController:edit];
navi.navigationBar.hidden=YES;
navi.navigationBar.barStyle=UIBarStyleBlack;
self.window.rootViewController=navi;
return YES;
}</pre>
<pre>

效果圖

最后附上GitHub源碼地址
</pre>

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