Question

Sorry I’m new to iOS. I intend to make an UITableView inside UIAlertView. Finally i have gotten this tutorial

I have implemented UIAlertTableView class this way

UIAlertTableView *alert = [[UIAlertTableView alloc] initWithTitle:@"Choose a number"
                                                          message:nil
                                                         delegate:self
                                                cancelButtonTitle:@"Cancel"
                                                otherButtonTitles:nil, nil];
alert.tableDelegate = self;
alert.dataSource = self;
alert.tableHeight = 120;
[alert show];

However after testing, i got the UIAlert displayed a blank list, with no items appear inside. Previously i have an NSMUtableArray that i want to use as data source. From the tutorial above, seems that assigning data source is done using alert.dataSource = self. Yet i’m still wondering how to use my NSMutableArray as the data source and how it relates to alert.dataSource?

Answer 1

I’ll suggest you need to create a new file as your alertView’s table datasource and delegate.
Implement the:

@interface MyTableSource: UIViewController <UITableViewDataSource, UITableViewDelegate>
@end

@implementation MyTableSource

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{

return 7;

}

- (UITableViewCell *)tableView:(UITableView *)tableViews cellForRowAtIndexPath:(NSIndexPath *)indexPath
{

    static NSString *CellIdentifier = @"MyIdentifier";


    UITableViewCell *cell = [tableViews dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil)
    {

        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }
    cell.textLabel.text = @"M";
    return cell;

}

@end

Create the alert like:

UIAlertTableView *alert = [[UIAlertTableView alloc] initWithTitle:@"Choose a number"
                                                          message:nil
                                                         delegate:self
                                                cancelButtonTitle:@"Cancel"
                                                otherButtonTitles:nil, nil];
MyTableSource *data = [[MyTableSource alloc] init];
alert.tableDelegate = data;
alert.dataSource = data;
alert.tableHeight = 120;
[alert show];

Note:
I implemented that alertView for testing, there are alot of issues.
You need to call:

[self layoutAnimated:YES]; instead of [self setNeedsLayout]; in the alertView class.