Question

how can I set an iphone app to start in Landscape mode? and stays that way

Answer 1

Set the “Initial interface orientation” app.plist entry to “Landscape” (left or right home button) and add (or more likely, uncomment and edit) the following view controller method:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return UIInterfaceOrientationIsLandscape(interfaceOrientation);
}