在用户确认后,我正在尝试使用警报视图删除表视图中的一行。但是我不知道如何让UIAlertViewDelegate
方法知道要删除表中的哪一行。
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
UIAlertView *alert_delete = [[UIAlertView alloc]initWithTitle:[NSString stringWithFormat:@"Confirm Delete %@",[names objectAtIndex:indexPath.row] ] message:@"Warning all student data will be earsed" delegate:self cancelButtonTitle:@"Dismess" otherButtonTitles:@"YES", nil];
[alert_delete show];
// Delete the row from the data source
[tableView deleteRowsAtIndexPaths:@[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
}
}
在警报方法中,我尝试处理它以从表和数据库中删除行
-(void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
NSString*title = [alertView buttonTitleAtIndex:buttonIndex];
if ([title isEqualToString:@"YES"]) {
// how to pass indexPath.row to alertview
[names removeObjectAtIndex:indexPath.row];
}
}