UISlider 不占用全宽

Question

我已经制作了全宽（两侧都限制为边缘 0）但有几个像素未使用，请参见下图：

我听说这是因为将 space 留给了拇指滑块？

有什么方法可以把这个小洞填进去吗？

我考虑过在缝隙处放置一个小视图来堵住它，但这看起来很粗糙而且很老套:(

谢谢！

滑块设置：

class TrackProgressSlider : BiggerThumbTouchUISlider {
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)

        self.minimumValue = 0
        self.maximumValue = 100
        self.value = 0
        self.backgroundColor = UIColor.clearColor()
        self.transform = CGAffineTransformMakeScale(1.0, 2.0)
        self.setThumbImage(UIImage(named: "progress-marker-half")!, forState: UIControlState.Normal)
        self.minimumTrackTintColor = UIColor(hexString: "#f2f2f2")
        self.maximumTrackTintColor = UIColor.clearColor()

    }
}

Answer 1

利用trackRectForBounds(_ :)

class CustomSlider: UISlider {
  override func trackRectForBounds(bounds: CGRect) -> CGRect {
    var trackRect = super.trackRectForBounds(bounds)
    trackRect.size.width = bounds.width
    trackRect.origin.x = 0
    return trackRect
  } 
}

UISlider 不占用全宽

UISlider not taking up full width

ios

swift

uislider