【移动开发】viewDidLoad方法

如果需要修改在nib中创建的任何对象，可以在负载控制器父类UIViewController中的viewDidLoad方法。由于在Interface Builder中并不能完成所有任务，因此我们将利用viewDidLoad方法。

- (void)viewDidLoad; // Called after the view has been loaded. For view controllers created in code, this is after -loadView. For view controllers unarchived from a nib, this is after the view is set.

示例代码：

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
    self.sliderLabel.text = @"50";
    UIImage *buttonImageNormal = [UIImage imageNamed:@"whiteButton.png"];
    UIEdgeInsets insets = UIEdgeInsetsMake(0, 12, 0, 12);
    UIImage *stretchableButtonImageNormal = [buttonImageNormal
                                             resizableImageWithCapInsets:insets];
    [self.doSomethingButton setBackgroundImage:stretchableButtonImageNormal
                                      forState:UIControlStateNormal];
    
    UIImage *buttonImagePressed = [UIImage imageNamed:@"blueButton.png"];
    UIImage *stretchableButtonImagePressed = [buttonImagePressed
                                              resizableImageWithCapInsets:insets];
    [self.doSomethingButton setBackgroundImage:stretchableButtonImagePressed
                                      forState:UIControlStateHighlighted];
}

参考资料

https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIViewController_Class/#//apple_ref/occ/instm/UIViewController/viewDidLoad