第一种 让图片不停的旋转360度
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{
double angle;
UIImageView *p_w_picpathView;
}
p_w_picpathView = [[UIImageView alloc] initWithFrame:CGRectMake(100, 100, 30, 5)];
p_w_picpathView.p_w_picpath = [UIImage p_w_picpathNamed:@"1111.jpg"];
[self.view addSubview:p_w_picpathView];
- (void)loopBasicAnimation
{
//动画
CABasicAnimation* rotationAnimation;
rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
rotationAnimation.toValue = [NSNumber numberWithFloat: M_PI * 2.0 ];
rotationAnimation.duration = 0.8;
rotationAnimation.cumulative = YES;
rotationAnimation.repeatCount = ULLONG_MAX;
[p_w_picpathView.layer addAnimation:rotationAnimation forKey:@"rotationAnimation"];
}
第二种
- (void)stopLoppAnimation1{
CGAffineTransform endAngle = CGAffineTransformMakeRotation(angle * (M_PI / 180.0f));
//时间
[UIView animateWithDuration:0.01 delay:0 options:UIViewAnimationOptionCurveLinear animations:^{
p_w_picpathView.transform = endAngle;
} completion:^(BOOL finished) {
angle = angle+10; //旋转速度的快慢
[self stopLoppAnimation1];
}];
}