iOS编程, 实现播放视频功能的时候的slider圆点大小和圆点左侧条的颜色

// 创建.
UISlider *sliderForMV = [[UISlider alloc]initWithFrame:CGRectMake(50, 55 * HEIGHTFIT + 250 * HEIGHTFIT - 50 * HEIGHTFIT + 2.5, self.view.frame.size.width - 110, 35)];
    [self.view addSubview:sliderForMV];
  
// 圆点左侧条的颜色
    sliderForMV.minimumTrackTintColor = [UIColor colorWithRed:54 / 256.0 green:148 / 256.0 blue:111 / 256.0 alpha:1];

//圆点大小.
    [sliderForMV setThumbImage:[UIImage imageNamed:@"iconfont-yuandian"] forState:UIControlStateNormal];
    [sliderForMV setThumbImage:[UIImage imageNamed:@"iconfont-yuandian"] forState:UIControlStateHighlighted];