1 //
 2 //  YYViewController.m
 3 // 03-锚点等属性  4 //  5 // Created by apple on 14-6-21.  6 // Copyright (c) 2014年 itcase. All rights reserved.  7 //  8  9 #import "YYViewController.h" 10 11 @interface YYViewController () 12 13 @end 14 15 @implementation YYViewController 16 17 - (void)viewDidLoad 18 { 19  [super viewDidLoad]; 20 //创建图层 21 CALayer *layer=[CALayer layer]; 22 //设置图层的属性 23 layer.backgroundColor=[UIColor redColor].CGColor; 24 layer.bounds=CGRectMake(0, 0, 100, 100); 25 //添加图层 26  [self.view.layer addSublayer:layer]; 27 28 } 29 30 @end

 1 - (void)viewDidLoad
 2 {
 3  [super viewDidLoad];  4 //创建图层  5 CALayer *layer=[CALayer layer];  6 //设置图层的属性  7 layer.backgroundColor=[UIColor redColor].CGColor;  8 layer.bounds=CGRectMake(0, 0, 100, 100);  9 //设置锚点为（0，0） 10 layer.anchorPoint=CGPointZero; 11 //添加图层 12  [self.view.layer addSublayer:layer]; 13 } 14 @end

 1 //
 2 //  YYViewController.m
 3 // 04-隐式动画  4 //  5 // Created by apple on 14-6-21.  6 // Copyright (c) 2014年 itcase. All rights reserved.  7 //  8  9 #import "YYViewController.h" 10 11 @interface YYViewController () 12 @property(nonatomic,strong)CALayer *layer; 13 @end 14 15 @implementation YYViewController 16 17 - (void)viewDidLoad 18 { 19  [super viewDidLoad]; 20 //创建图层 21 CALayer *mylayer=[CALayer layer]; 22 //设置图层属性 23 mylayer.backgroundColor=[UIColor brownColor].CGColor; 24 mylayer.bounds=CGRectMake(0, 0, 150, 100); 25 //显示位置 26 mylayer.position=CGPointMake(100, 100); 27 mylayer.anchorPoint=CGPointZero; 28 mylayer.cornerRadius=20; 29 //添加图层 30  [self.view.layer addSublayer:mylayer]; 31 self.layer=mylayer; 32 } 33 34 -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event 35 { 36 //隐式动画 37 self.layer.bounds=CGRectMake(0, 0, 200, 60); 38 self.layer.backgroundColor=[UIColor yellowColor].CGColor; 39 } 40 @end

1     [CATransaction begin];
2     [CATransaction setDisableActions:YES];
3     //隐式动画 4 self.layer.bounds=CGRectMake(0, 0, 200, 60); 5 self.layer.backgroundColor=[UIColor yellowColor].CGColor; 6 [CATransaction commit];