1.通過CAKeyframeAnimation（關(guān)鍵幀動畫）來實現(xiàn)沿著沿著路徑移動的動畫
2.通過CABaseAnimation實現(xiàn)旋轉(zhuǎn)
3.在CAAnimationGroup中添加這兩個動畫

如何使用CAKeyframeAnimation來實現(xiàn)沿著路徑的移動

  使用CGMutablePathRef來繪制路徑利用關(guān)鍵幀動畫實現(xiàn)移動也可以使用UIBezierPath來繪制貝塞爾曲線路徑（code）

   CGPoint startPoint = self.leafImg.center;
   CGMutablePathRef path = CGPathCreateMutable();
    CGPathMoveToPoint(path, nil, startPoint.x, startPoint.y);
    CGPathAddQuadCurveToPoint(path, nil, 50, self.view.frame.size.height-100, startPoint.x + 360, startPoint.y + 550);///添加一個控制點和結(jié)束點
    CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"position"];
    animation.path = path;

使用CABaseAnimation實現(xiàn)旋轉(zhuǎn)操作（code）

CABasicAnimation *aniBase = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
    aniBase.fromValue = @0;
    aniBase.toValue = @M_PI;

添加到CAAnimationGroup中，然后把動畫組加到layer中

CAAnimationGroup *group = [CAAnimationGroup animation];
    group.duration = 4.f;
    group.animations = @[aniBase,animation];
    [self.leafImg.layer addAnimation:group forKey:nil];

二.使用CAKeyframeAnimation實現(xiàn)

[UIView animateKeyframesWithDuration:4 delay:0 options:UIViewKeyframeAnimationOptionCalculationModeCubic animations:^{
        CGPoint center = self.leafImg.center;
        [UIView addKeyframeWithRelativeStartTime:0 relativeDuration:0.1 animations:^{
            self.leafImg.center = (CGPoint){(center.x + 15), (center.y + 80)};
        }];
        ///相對于4s的時間 0.1*4=0.4s的時候開始
        [UIView addKeyframeWithRelativeStartTime:0.1 relativeDuration:0.15 animations:^{
            self.leafImg.center = (CGPoint){center.x + 45, center.y + 185};
        }];
        [UIView addKeyframeWithRelativeStartTime:0.25 relativeDuration:0.3 animations:^{
            self.leafImg.center = (CGPoint){center.x + 90, center.y + 295};
        }];
        [UIView addKeyframeWithRelativeStartTime:0.55 relativeDuration:.3 animations:^{
            self.leafImg.center = (CGPoint){center.x + 180, center.y + 375};
        }];
        [UIView addKeyframeWithRelativeStartTime:0.85 relativeDuration:.15 animations:^{
            self.leafImg.center = (CGPoint){center.x + 360, center.y + 435};
        }];
        [UIView addKeyframeWithRelativeStartTime:0 relativeDuration:1 animations:^{
            self.leafImg.transform = CGAffineTransformMakeRotation(M_PI);
        }];
    } completion:^(BOOL finished) {
       /// if (self.timer) {
           /// [self.timer invalidate];
            ///self.timer = nil;
        }
    }];