iOS：cell编辑状态时的按钮

灵活应用cell编辑状态的按钮

//宏定义#define SYSTEM_VERSION_GRETER_THAN(v)   ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)#define SYSTEM_VERSION_LESS_THAN(v)     ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{return UITableViewCellEditingStyleDelete;}-(void)tableView:(UITableView*)tableView willBeginEditingRowAtIndexPath:(NSIndexPath*)indexPath{self.editIndexPath = indexPath;[self.view setNeedsLayout];}- (void)viewDidLayoutSubviews{[super viewDidLayoutSubviews];[self configSwipeButtons];}-(NSArray<UITableViewRowAction*>*)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath{//cell - 删除UITableViewRowAction *rowAction = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleNormal title:@\"\" handler:^(UITableViewRowAction * _Nonnull action, NSIndexPath * _Nonnull indexPath) {// 点击删除时 do something/** 1. 更新数据源(数组): 根据indexPaht.row作为数组下标, 从数组中删除数据. */[self.selectedPhotos removeObjectAtIndex:indexPath.row];[self.selectedAssets removeObjectAtIndex:indexPath.row];/** 2. TableView中 删除一个cell. */[tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationRight];[self.tableView reloadSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationNone];}];[rowAction setTitle:@\"删除\"];NSArray *arr = @[rowAction];return arr;}- (void)configSwipeButtons{// 获取选项按钮的referenceif (SYSTEM_VERSION_GRETER_THAN(@\"11.0\")){// iOS 11层级 : UITableView -> UISwipeActionPullViewfor (UIView *subview in self.tableView.subviews){//这里写大于等于2是因为我这里需要两个actionif ([subview isKindOfClass:NSClassFromString(@\"UISwipeActionPullView\")]){// 和iOS 10的按钮顺序相反UIButton*deleteButton = subview.subviews[0];[deleteButton setImage:[UIImage imageNamed:@\"cell_delete1\"] forState:UIControlStateNormal];[deleteButton setTitle:@\"\" forState:UIControlStateNormal];}}}else{// iOS 8-10层级: UITableView -> UITableViewCell -> UITableViewCellDeleteConfirmationViewUploadMaterCell *tableCell = [self.tableView cellForRowAtIndexPath:self.editIndexPath];for(UIView *subview in tableCell.subviews){if ([subview isKindOfClass:NSClassFromString(@\"UITableViewCellDeleteConfirmationView\")]){UIButton*deleteButton = subview.subviews[0];[deleteButton setImage:[UIImage imageNamed:@\"cell_delete1\"] forState:UIControlStateNormal];[deleteButton setTitle:@\"\" forState:UIControlStateNormal];}}}}