How to display the UITableView programmatically?

Question

I want to ask a question about the UITableView of the objective C. I am writing a program and I would like to create the UI programmatically. However, I don\'t know how to d

Answer 1

• Create a new class that inherits from UIViewController.
• Make it conform to the UITableViewDataSource protocol.
• Declare your table view.

Your header file should be like the following:

@interface MyViewController : UIViewController  {    

}

@property (nonatomic, retain) UITableView *tableView;

@end

In the viewLoad method of your class:

• Create a table view using initWithFrame. Use dimensions 320x460 for full height. Remove 44 from height if you have a navigation bar and 49 if you have a tab bar.
• Create a new view.
• Add the table view to the new view.
• Set the controller view to the new view.
• Set the table view data source to your instance (self).
• Implement the two required data source methods: tableView:cellForRowAtIndexPath and tableView:numberOfRowsInSection

Your implementation file should be like the following:

#import "MyViewController.h"

@implementation MyViewController

@synthesize tableView=_tableView;

- (void)dealloc
{
    [_tableView release];

    [super dealloc];
}

#pragma mark - View lifecycle

- (void)loadView
{
    UITableView *tableView = [[UITableView alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 460.0) style:UITableViewStylePlain];
    self.tableView = tableView;
    [tableView release];    

    UIView *view = [[UIView alloc] init];
    [view addSubview:self.tableView];
    self.view = view;
    [view release];

    self.tableView.dataSource = self;
}

- (void)viewDidUnload {
    self.tableView = nil;

    [super viewDidUnload];
}

#pragma mark - Table view data source

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *MyCellIdentifier = @"MyCellIdentifier";

    UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:MyCellIdentifier];

    if(cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:MyCellIdentifier] autorelease];
    }

    return cell;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
   return 5;
}

@end