HMSegmentedControl源代码解析（13）

look_w

/**
添加背景和border 的layer
@param fullRect cgrect
*/
- (void)addBackgroundAndBorderLayerWithRectCGRect)fullRect {
    // Background layer
    CALayer *backgroundLayer = [CALayer layer];
    backgroundLayer.frame = fullRect;
    [self.layer insertSublayer:backgroundLayer atIndex:0];
   
    // Border layer
    if (self.borderType & HMSegmentedControlBorderTypeTop) {
        CALayer *borderLayer = [CALayer layer];
        borderLayer.frame = CGRectMake(0, 0, fullRect.size.width, self.borderWidth);
        borderLayer.backgroundColor = self.borderColor.CGColor;
        [backgroundLayer addSublayer: borderLayer];
    }
    if (self.borderType & HMSegmentedControlBorderTypeLeft) {
        CALayer *borderLayer = [CALayer layer];
        borderLayer.frame = CGRectMake(0, 0, self.borderWidth, fullRect.size.height);
        borderLayer.backgroundColor = self.borderColor.CGColor;
        [backgroundLayer addSublayer: borderLayer];
    }
    if (self.borderType & HMSegmentedControlBorderTypeBottom) {
        CALayer *borderLayer = [CALayer layer];
        borderLayer.frame = CGRectMake(0, fullRect.size.height - self.borderWidth, fullRect.size.width, self.borderWidth);
        borderLayer.backgroundColor = self.borderColor.CGColor;
        [backgroundLayer addSublayer: borderLayer];
    }
    if (self.borderType & HMSegmentedControlBorderTypeRight) {
        CALayer *borderLayer = [CALayer layer];
        borderLayer.frame = CGRectMake(fullRect.size.width - self.borderWidth, 0, self.borderWidth, fullRect.size.height);
        borderLayer.backgroundColor = self.borderColor.CGColor;
        [backgroundLayer addSublayer: borderLayer];
    }
}