Basic View Properties

Overview

The commonly used view properties are:

• backgroundColor
• alpha
• frame
• center
• transform

There are a few additional properties for the view that are set on the underlying CALayer. A View is just a wrapper around a CALayer.

• cornerRadius
• border
• shadow

Setting view properties

See the code snippet below for an example of setting view properties, including the properties available on the layer.

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    self.blueView.backgroundColor = [UIColor blueColor];
    self.blueView.alpha = 0.8;
    
    self.blueView.layer.borderColor = [UIColor grayColor].CGColor;
    self.blueView.layer.borderWidth = 10;
    
    self.blueView.layer.cornerRadius = 10;
    
    self.blueView.layer.shadowColor = [UIColor blackColor].CGColor;
    self.blueView.layer.shadowOffset = CGSizeMake(5, 5);
    self.blueView.layer.shadowOpacity = 0.8;
    self.blueView.layer.shadowRadius = 3;
}