竖着的UISlider

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原创最新推荐文章于 2026-06-04 11:46:25 发布 2.2k 阅读 AI 写同款· GEO 优化 ›

Matlab科研绘图实战：plot/scatter/bar底层原理与出版级规范 Matlab绘图本质上是将科学数据编码为视觉语言的信息映射过程，而非简单图形生成。其核心在于理解plot、scatter、bar三大函数的语义差异：plot表达连续关系，scatter支持离散点独立属性控制，bar建模分组语义。技术价值体现在对坐标系单位感知、颜色空间精度（RGB/colormap/colororder）、毫米级排版控制（字体、边距、分辨率）的工程化实现。典型应用场景覆盖期刊投稿（Nature/IEEE）、毕业论文图表重绘、多组实验数据批量可视化。本文聚焦Matlab R2014b后图形系统阅读详情

闲着没事，来一发，竖着的UISlider

#import "ViewController.h"

@interface ViewController ()

@end

#define kScreenWidth                       [UIScreen mainScreen].bounds.size.width
@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    // UISlider
    UISlider *flySlider = [[UISlider alloc] initWithFrame:CGRectMake((kScreenWidth-200)/2, 200, 200, 20)];

    flySlider.maximumValue                  = 9.f;
    flySlider.minimumValue                  = 0.f;
    flySlider.value                         = 4.f;
    flySlider.maximumTrackTintColor         = [UIColor redColor];
    flySlider.minimumTrackTintColor         = [UIColor yellowColor];

    //实现偏转
    flySlider.transform                     = CGAffineTransformMakeRotation(-M_PI_2);

    [flySlider setThumbImage:[UIImage imageNamed:@"flySlider_icon"] forState:UIControlStateNormal];

    [self.view addSubview:flySlider];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end