ThreeTwoOneStart1
##项目是运动类，有一个321倒计时进入运动界面的功能，实现用了简单的基础动画CABasicAnimation，大致效果如下
###下面我们看一下实现部分 ####创建了一个CABasicAnimation 使用了其中的缩放transform.scale路径
- (CABasicAnimation *)scaleAnim{
if (!_scaleAnim) {
// 缩放动画
CABasicAnimation * scaleAnim = [CABasicAnimation animation];
scaleAnim.keyPath = @"transform.scale";
scaleAnim.removedOnCompletion = NO;
scaleAnim.fillMode = kCAFillModeForwards;
scaleAnim.delegate = self;
scaleAnim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
scaleAnim.repeatCount = 1;
_scaleAnim = scaleAnim;
}
return _scaleAnim;
}
####创建了一个显示内容的label
{
if (!_aniLabel) {
UILabel *label = [UILabel new];
label.frame = self.bounds;
label.tag = 0;
label.backgroundColor = [UIColor clearColor];
label.text = self.mtitleArr[label.tag];
label.textColor = [UIColor whiteColor];
label.textAlignment = NSTextAlignmentCenter;
_aniLabel = label;
[self addSubview:label];
}
return _aniLabel;
}
####在每次动画结束animationDidStop代理方法里处理一下label上显示的内容
#pragma mark - 动画结束
- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag
{
if (anim == [self.aniLabel.layer animationForKey:@"scaleAnim"])
{//加分
if (self.aniLabel.tag == self.mtitleArr.count - 1)
{//动画播放结束do something
if (self.click) {
self.click();
}
}else
{//播放动画
self.aniLabel.tag ++;
self.aniLabel.text = self.mtitleArr[self.aniLabel.tag];
[self.aniLabel.layer addAnimation:self.scaleAnim forKey:@"scaleAnim"];
NSURL *url = [[NSBundle mainBundle] URLForResource:self.msoundArr[self.aniLabel.tag] withExtension:nil];
[self playerUrl:url];
}
}
}
以上。