iOS Layer CABasicAnimation

@import url(http://i.cnblogs.com/Load.ashx?type=style&file=SyntaxHighlighter.css);@import url(/css/cuteeditor.css);

CALayer *layer = [CALayer layer];

layer.delegate = self;

layer.bounds = CGRectMake(0, 0, 100, 100);

layer.position = CGPointMake(100, 100);

layer.anchorPoint = CGPointZero;

layer.backgroundColor = [UIColor blackColor].CGColor;

[layer setNeedsDisplay];

[self.view.layer addSublayer:layer];

- (void)drawLayer:(CALayer *)layer inContext:(CGContextRef)ctx

{

CGContextSetRGBFillColor(ctx, 1.0, 0, 0, 1.0);

CGContextAddRect(ctx, CGRectMake(0, 0, 20, 20));

CGContextFillPath(ctx);

}

CABasicAnimation *basicAnimation = [CABasicAnimation animation];

basicAnimation.keyPath = @"position";

basicAnimation.fromValue = [NSValue valueWithCGPoint:CGPointMake(0, 0)];

basicAnimation.toValue = [NSValue valueWithCGPoint:CGPointMake(200, 200)];

basicAnimation.duration = 1.0;

basicAnimation.removedOnCompletion = NO;//动画执行完以后不要删除动画

basicAnimation.fillMode = kCAFillModeForwards;//保持最新的状态

[self.layer addAnimation:basicAnimation forKey:nil];

@import url(http://i.cnblogs.com/Load.ashx?type=style&file=SyntaxHighlighter.css);@import url(/css/cuteeditor.css);