iOS-模仿支付宝快捷设置编辑移动cell动画

#import "EditingViewController.h"

@interface EditingViewController () <UITableViewDelegate, UITableViewDataSource>

@property (nonatomic, strong) UITableView *tableView;
@property (nonatomic, strong) NSMutableArray *dataArray1;
@property (nonatomic, strong) NSMutableArray *dataArray2;

@end

@implementation EditingViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.dataArray1 = [NSMutableArray arrayWithArray:@[@"付钱",@"乘车码",@"健康码"]];
    self.dataArray2 = [NSMutableArray arrayWithArray:@[@"扫一扫",@"收钱",@"转账"]];
    [self.view addSubview:self.tableView];
}

- (UITableView *)tableView
{
    if (!_tableView) {
        _tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, ScreenWidth, ScreenHeight) style:UITableViewStyleGrouped];
        _tableView.showsVerticalScrollIndicator = NO;
        _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
        _tableView.delegate = self;
        _tableView.dataSource = self;
        _tableView.editing = YES; //开启编辑模式
        _tableView.backgroundColor = [UIColor colorWithHex:0xf3f3f3];
        _tableView.accessibilityIdentifier = @"EditingTableView";
    }
    return _tableView;
}

#pragma mark - 代理方法

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 2;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    if (section == 0) {
        return self.dataArray1.count;
    }
    return self.dataArray2.count;

}

- (UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *rid = @"XUEditingCellIdentify";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:rid];
    if(cell == nil){
      cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:rid];
    }
    if (indexPath.section == 0) {
        cell.textLabel.text = [self.dataArray1 objectAtIndex:indexPath.row];
    } else {
        cell.textLabel.text = [self.dataArray2 objectAtIndex:indexPath.row];
    }
    
    return cell;
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
    if (section == 0) {
        return 0.0000001;
    }
    return 40;
}

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
    UILabel *headerView = [[UILabel alloc] init];
    headerView.backgroundColor = [UIColor colorWithHex:0xf3f3f3];
    headerView.text = @"添加更多";
    return headerView;
}

- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section {
    return 0.000001;
}

- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section {
    UIView *footerView = [[UIView alloc] init];
    footerView.backgroundColor = [UIColor clearColor];
    return footerView;
}

#pragma mark - 编辑模式相关方法

- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath{
    return @"删除";
}

- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{
    if (indexPath.section == 0) {
        //返回删除类型
        return UITableViewCellEditingStyleDelete;
    }
    //返回新增元素类型
    return UITableViewCellEditingStyleInsert;
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
    //删除元素的方法实现
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        //解决编辑模式下删除cell,cell底部会有红线闪过的问题
        [tableView beginUpdates];
        
        NSString *editStr = [self.dataArray1 objectAtIndex:indexPath.row];
        //删除数据源
        [_dataArray1 removeObjectAtIndex:indexPath.row];
        //删除cell
        [_tableView deleteRowsAtIndexPaths:[NSArray arrayWithObjects:indexPath, nil] withRowAnimation:UITableViewRowAnimationRight];
        //我一个一个试的,必须是UITableViewRowAnimationRight,否则会有其他闪动问题
        
        NSIndexPath *newIndexPath = [NSIndexPath indexPathForRow:0 inSection:1];
        //添加数据源
        [_dataArray2 insertObject:editStr atIndex:0];
        //添加添加cell
        [_tableView insertRowsAtIndexPaths:[NSArray arrayWithObjects:newIndexPath, nil] withRowAnimation:UITableViewRowAnimationTop];
        
        //解决编辑模式下删除cell,cell底部会有红线闪过的问题
        [tableView endUpdates];
    }
    //新增元素的方法实现
    if (editingStyle == UITableViewCellEditingStyleInsert) {
        NSString *editStr = [self.dataArray2 objectAtIndex:indexPath.row];
        //删除数据源
        [_dataArray2 removeObjectAtIndex:indexPath.row];
        //删除cell
        [_tableView deleteRowsAtIndexPaths:[NSArray arrayWithObjects:indexPath, nil] withRowAnimation:UITableViewRowAnimationNone];
        
        NSIndexPath *newIndexPath = [NSIndexPath indexPathForRow:self.dataArray1.count inSection:0];
        //添加数据源
        [_dataArray1 addObject:editStr];
        //添加添加cell
        [_tableView insertRowsAtIndexPaths:[NSArray arrayWithObjects:newIndexPath, nil] withRowAnimation:UITableViewRowAnimationBottom];
    }
}

// 设置 cell 是否允许移动
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
    if (indexPath.section == 0) {
        return YES;
    }
    return NO;
}
// 移动 cell 时触发
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath {
    BOOL sectionSame = sourceIndexPath.section == destinationIndexPath.section;
    BOOL rowSame = sourceIndexPath.row == destinationIndexPath.row;
    if (sectionSame && rowSame) { return; }
    
    if (sourceIndexPath.section == 0) { //第一组的移动
        NSString *editStr = [self.dataArray1 objectAtIndex:sourceIndexPath.row];
        if (destinationIndexPath.section == 0) { //组内移动
            [_dataArray1 removeObjectAtIndex:sourceIndexPath.row];
            [_dataArray1 insertObject:editStr atIndex:destinationIndexPath.row];
        } else { //第一组 -> 第二组
            [_dataArray1 removeObjectAtIndex:sourceIndexPath.row];
            [_dataArray2 insertObject:editStr atIndex:destinationIndexPath.row];
        }
    } else {//第二组的移动
        NSString *editStr = [self.dataArray2 objectAtIndex:sourceIndexPath.row];
        if (destinationIndexPath.section == 1) { //组内移动
            [_dataArray2 removeObjectAtIndex:sourceIndexPath.row];
            [_dataArray2 insertObject:editStr atIndex:destinationIndexPath.row];
        } else { //第二组 -> 第一组
            [_dataArray2 removeObjectAtIndex:sourceIndexPath.row];
            [_dataArray1 insertObject:editStr atIndex:destinationIndexPath.row];
        }
    }
    //刷新左边的编辑模式按钮
    [_tableView reloadData];
}

@end