//橢圓
-(void)rangleView:(CGRect)frame{
? ? UIBezierPath *rectPath = [UIBezierPath bezierPathWithRect:self.frame];
? ? UIBezierPath *circlePath = [UIBezierPath bezierPathWithOvalInRect:frame];
? ? [rectPath appendPath:circlePath];
? ? CAShapeLayer *mask1 = [CAShapeLayer layer];
? ? mask1.frame = CGRectMake(0, 0, COVERVIEW_WIDTH, COVERVIEW_HEIGHT);
? ? mask1.backgroundColor = [UIColor clearColor].CGColor;
? ? mask1.fillColor = [UIColor whiteColor].CGColor;
? ? mask1.path = rectPath.CGPath;
? ? mask1.fillRule = kCAFillRuleEvenOdd;
? ? self.layer.mask = mask1;
}
