开启tableView的编辑模式：
//带动画
[self.tableView setEditing:YES animated:YES];
//或者(没有动画)
//self.tableView.editing = YES;
如果不仅仅是想进行单个的操作，可设置成多选。
self.tableView.allowsMultipleSelectionDuringEditing = YES;
下面是编辑时会用到的tableView的delegate和dataSource:
Delegate
//编辑的样式
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath;
//删除按钮的文字
- (nullable NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(3_0) __TVOS_PROHIBITED;
//ios8.0以后的接口，支持多个侧滑按钮
- (nullable NSArray<UITableViewRowAction *> *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(8_0) __TVOS_PROHIBITED;
//ios11以后的接口，该方法取代上面这个方法，如果实现了下面这两个方法上面的方法将无效
- (nullable UISwipeActionsConfiguration *)tableView:(UITableView *)tableView leadingSwipeActionsConfigurationForRowAtIndexPath:(NSIndexPath *)indexPath API_AVAILABLE(ios(11.0)) API_UNAVAILABLE(tvos);
- (nullable UISwipeActionsConfiguration *)tableView:(UITableView *)tableView trailingSwipeActionsConfigurationForRowAtIndexPath:(NSIndexPath *)indexPath API_AVAILABLE(ios(11.0)) API_UNAVAILABLE(tvos);
//编辑时cell是否需要缩进
- (BOOL)tableView:(UITableView *)tableView shouldIndentWhileEditingRowAtIndexPath:(NSIndexPath *)indexPath;
//两个编辑状态的回调
- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath __TVOS_PROHIBITED;
- (void)tableView:(UITableView *)tableView didEndEditingRowAtIndexPath:(nullable NSIndexPath *)indexPath __TVOS_PROHIBITED;
DataSource
//cell是否允许编辑
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath;
//cell是否可移动
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath;
//当delete或insert按钮按下时，对数据、UI进行处理
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath;
//实现这个回调以后，就会出现更换位置的按钮，用来处理cell位置更换后的数据交换
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath;
UI更新
- (void)beginUpdates;
- (void)endUpdates;
- (void)insertSections:(NSIndexSet *)sections withRowAnimation:(UITableViewRowAnimation)animation;
- (void)deleteSections:(NSIndexSet *)sections withRowAnimation:(UITableViewRowAnimation)animation;
- (void)reloadSections:(NSIndexSet *)sections withRowAnimation:(UITableViewRowAnimation)animation NS_AVAILABLE_IOS(3_0);
- (void)moveSection:(NSInteger)section toSection:(NSInteger)newSection NS_AVAILABLE_IOS(5_0);
- (void)insertRowsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation;
- (void)deleteRowsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation;
- (void)reloadRowsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation NS_AVAILABLE_IOS(3_0);
- (void)moveRowAtIndexPath:(NSIndexPath *)indexPath toIndexPath:(NSIndexPath *)newIndexPath NS_AVAILABLE_IOS(5_0);
举个🌰
//允许编辑
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
return YES;
}
/**
设置编辑模式：
UITableViewCellEditingStyleNone 没有编辑样式
UITableViewCellEditingStyleDelete 删除样式 （左边是红色减号）
UITableViewCellEditingStyleInsert 插入样式 (左边是绿色加号)
UITableViewCellEditingStyleDelete | UITableViewCellEditingStyleInsert 多选模式，左边是蓝色对号
*/
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {
if (tableView.isEditing) {
return UITableViewCellEditingStyleDelete | UITableViewCellEditingStyleInsert;
}else {
return UITableViewCellEditingStyleDelete;
}
}
//删除按钮文字
- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath {
return @"删除";
}
//数据、UI处理
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
//删除
}
if (editingStyle == UITableViewCellEditingStyleInsert) {
//删除
}
if (editingStyle == (UITableViewCellEditingStyleDelete | UITableViewCellEditingStyleInsert)) {
//多选
}
}
正题（自定义多选框）
方式一、
自定义cell(隐藏系统自带的勾选按钮图片，自定义一个放在相应的位置，根据是否选中来切换self.selectImageView.image)：
- (void)setModel:(DataModel *)model {
if ([model.isSelected isEqualToString:@"1"]) {
self.selectImageView.image = [UIImage imageNamed:@"selected"];
}else {
self.selectImageView.image = [UIImage imageNamed:@"unselected"];
}
}
- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]) {
[self setUpCell];
}
return self;
}
- (void)setUpCell {
self.selectionStyle = UITableViewCellSelectionStyleNone;
self.selectImageView = [[UIImageView alloc] init];
self.selectImageView.userInteractionEnabled = YES;
self.selectImageView.image = [UIImage imageNamed:@"unselected"];
[self.contentView addSubview:self.selectImageView];
[self.selectImageView mas_updateConstraints:^(MASConstraintMaker *make) {
make.right.equalTo(self.contentView.mas_left).offset(0);
make.centerY.mas_equalTo(0);
make.width.height.mas_equalTo(22);
}];
}
- (void)setEditing:(BOOL)editing animated:(BOOL)animated {
//重写此方法，作用为当进入编辑模式时候运行customMultipleChioce方法
[super setEditing:editing animated:animated];
if (editing) {
[self customMultipleChioce];
}
}
- (void)customMultipleChioce {
for (UIControl *control in self.subviews) {
//循环cell的subview
if ([control isMemberOfClass:NSClassFromString(@"UITableViewCellEditControl")]) {
//找出UITableViewCellEditControl
for (UIView *view in control.subviews) {
if ([view isKindOfClass: [UIImageView class]]) {
//在UITableViewCellEditControl中找到imageView
UIImageView *imageView = (UIImageView *)view;
imageView.hidden = YES;
}
}
}
}
}
方式二、
替换系统原本的勾选按钮图片，地址：替换系统勾选按钮图片
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