iOS开发笔记-44:左滑删除相关

开启左滑删除

//设置可删除
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath{
     return YES;
}

//滑动删除
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (!self.peopleAllTableView.isEditing)
    {
        return UITableViewCellEditingStyleDelete;
    }
    return UITableViewCellEditingStyleDelete | UITableViewCellEditingStyleInsert;
}

//滑动删除begin预处理
- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(NSIndexPath*)indexPath
{
    //PeopleAllCell *cell = (PeopleAllCell *)[tableView cellForRowAtIndexPath:indexPath];
    //[cell.verifyBtn setHidden:YES];
}

//滑动删除结束处理
- (void)tableView:(UITableView *)tableView didEndEditingRowAtIndexPath:(NSIndexPath*)indexPath
{
    //PeopleAllCell *cell = (PeopleAllCell *)[tableView cellForRowAtIndexPath:indexPath];
    //[cell.verifyBtn setHidden:NO];
}

//修改左滑的按钮的字
-(NSString*)tableView:(UITableView*)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath*)indexpath {
    return @"忽略";
}

//左滑点击事件
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
    if (editingStyle == UITableViewCellEditingStyleDelete) { //删除事件
        [self.dataListArray removeObjectAtIndex:indexPath.row];//tableview数据源
        if (![self.dataListArray count]) { //删除此行后数据源为空
            [self.peopleAllTableView deleteSections: [NSIndexSet indexSetWithIndex: indexPath.section] withRowAnimation:UITableViewRowAnimationBottom];
        } else {
            [self.peopleAllTableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
        }
    }
    else if (editingStyle == UITableViewCellEditingStyleInsert) {
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view.
    }
}

UITableViewCell 左滑删除时,改变删除按钮背景颜色

-(NSArray*)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath
{

    UITableViewRowAction *rowAction = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleNormal title:@"删除" handler:^(UITableViewRowAction * _Nonnull action, NSIndexPath * _Nonnull indexPath) {
// 点击删除时 do something
    }];

//    rowActionSec.backgroundColor = [UIColor colorWithHexString:@"f38202"];
    rowAction.backgroundColor = [UIColor purpleColor];

    UITableViewRowAction *rowaction = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleNormal title:@"置顶" handler:^(UITableViewRowAction * _Nonnull action, NSIndexPath * _Nonnull indexPath) {
        // 点击置顶时 do something
    }];
    rowaction.backgroundColor = [UIColor grayColor];
    NSArray *arr = @[rowAction,rowaction];
    return arr;
}