Can you hard code IBActions and IBOutlets, rather

问题:

Is it possible to to hard code the IBActions and IBOutlets in code, instead of drag-connecting them in Interface Builder?

回答1:

Yes it is poosible...

sample code

UIButton *btnDetail = [UIButton buttonWithType:UIButtonTypeRoundedRect] ;

        [btnDetail setFrame:CGRectMake(250.0f, 15.0f, 65.0f, 20.0f)] ;
        //btnDetail.backgroundColor = [UIColor grayColor];
        [btnDetail setTitle:@"Detail" forState:UIControlStateNormal];
        [btnDetail setTitleColor: [UIColor redColor] forState: UIControlStateNormal];
        [btnDetail.titleLabel setFont:[UIFont fontWithName:@"Verdana" size:12]];
        [btnDetail setBackgroundColor:[UIColor clearColor]];
        [btnDetail sizeThatFits:btnDetail.frame.size];
        [self.view addSubview:btnDetail];
//IBAction
        [btnDetail addTarget:self 
                   action:@selector(ShowSavingAccountDetail:)
         forControlEvents:UIControlEventTouchUpInside];

        [btnDetail setImage:[UIImage imageNamed:@"btn-detail.png"] forState:UIControlStateNormal];

回答2:

The concept and sole purpose of IBAction and IBOutlet is to provide Interface Builder with means to connect the xib with your code.

If you don't want to use Interface Builder with your code, you don't need IBAction or IBOutlet, you need them ONLY to use objects (buttons, textfields, etc.) that were instanciated in your xib from your classes.

With that said, mihirpmehta's answer is the correct way to programmatically add UI elements to your view and add actions to them.