[Code notes] drop-down options: cell and note drop-down cell
I ,.
2. Engineering Drawing.
3. Code.
RootViewController. h
# Import <UIKit/UIKit. h> // Add the header file # import "ComboBoxView. h" @ interface RootViewController: UIViewController {ComboBoxView * _ comboBox;} @ end
RootViewController. m
#import "RootViewController.h"@interface RootViewController ()@end@implementation RootViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{ self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self;}- (void)viewDidLoad{ [super viewDidLoad]; // Do any additional setup after loading the view. self.navigationController.navigationBarHidden=YES; NSArray *comboBoxDatasource = [[NSArray alloc] initWithObjects:@"one", @"two", @"three", @"four", @"five", @"six", @"seven", @"eight", nil]; _comboBox = [[ComboBoxView alloc] initWithFrame:CGRectMake(20, 20, 280, 140)]; _comboBox.comboBoxDatasource = comboBoxDatasource; _comboBox.backgroundColor = [UIColor clearColor]; [_comboBox setContent:[comboBoxDatasource objectAtIndex:0]]; [self.view addSubview:_comboBox]; }