Question

我正在尝试更新UITableView内UIAlertView的所选didSelectRowAtIndexPath行。但我遇到了一个问题。每次我尝试更新任何一行时，它只会更新第一行而不管行的选择我的代码是：

 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

NSString *selectedrow = nil;

if (searching) {
    slCell=indexPath.row;
    selectedrow = [copyListOfItems objectAtIndex:indexPath.row];


UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Enter the Number of Quantity" message:@""
                                               delegate:self cancelButtonTitle:nil  otherButtonTitles:@"OK", nil];

[alert addTextFieldWithValue:@"" label:@"Number of Item"];  
textfieldQty = [alert textFieldAtIndex:0];
textfieldQty.keyboardType = UIKeyboardTypeNumberPad;
textfieldQty.keyboardAppearance = UIKeyboardAppearanceAlert;
textfieldQty.autocorrectionType = UITextAutocorrectionTypeNo;
[alert show];
[alert release];
}
else {

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Enter the Number of Quantity" message:@""
                                                   delegate:self cancelButtonTitle:nil  otherButtonTitles:@"OK", nil];

    [alert addTextFieldWithValue:@"" label:@"Number of Item"];  
    textfieldQty = [alert textFieldAtIndex:0];
    textfieldQty.keyboardType = UIKeyboardTypeNumberPad;
    textfieldQty.keyboardAppearance = UIKeyboardAppearanceAlert;
    textfieldQty.autocorrectionType = UITextAutocorrectionTypeNo;
    [alert show];
    [alert release];
        }
}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
NSString *b=nil;
if (buttonIndex == 0) {
    if (searching) {
        if([textfieldQty.text isEqualToString:b]) {
            UIAlertView *alert2 = [[UIAlertView alloc] initWithTitle:@"Enter plz" message:@""
                                                           delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK"];
            [alert2 show];
            [alert2 release];
        }


    NSString *newqty = [[NSString alloc] initWithFormat:@"%@",textfieldQty.text];
    DMSAppDelegate *d= (DMSAppDelegate *)[[UIApplication sharedApplication] delegate];

    [d->tableDataQt replaceObjectAtIndex:slCell withObject:(id)newqty];

    NSLog(@"tb%@",copyListOfQty);

    }
    else {

        NSString *newqty = [[NSString alloc] initWithFormat:@"%@",textfieldQty.text];
        DMSAppDelegate *d= (DMSAppDelegate *)[[UIApplication sharedApplication] delegate];
        [d->tableDataQt replaceObjectAtIndex:slCell withObject:(id)newqty];
        [self.tablevieww reloadData];
    }

}   
}

Answer 1

请按照以下步骤实现您的目标。

在UIAlertview方法中创建(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath时，将alerview的标记设置为indexpath的行。
在委托方法 -(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex中，您尝试访问alertView的标记并将该标记传递给方法调用[d->tableDataQt replaceObjectAtIndex:[alertView tag] withObject:(id)newqty];
在AppDelegate类中，您再创建一个名为-(void)replaceObjectAtIndex:(NSInteger>inIndex withObject:(id)inObject
在上面新创建的方法中，尝试使用方法调用UITableViewCell

UITableView

UITableViewCell *myCell = [tableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:inIndex inSection:0];

这样，您将获得UITableViewCell的对象并更改其值并重新加载表。

我希望这会对你有所帮助。如果能解决您的问题，请不要忘记使用正确的标记。：）

感谢。

无法更新uitableview行

1 个答案: