#define RGBCOLOR(r,g,b) [UIColor colorWithRed:(r)/255.0f green:(g)/255.0f blue:(b)/255.0f alpha:1]
- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    //方式一 系统UIProgressView
    UIProgressView *progressView=[[UIProgressView alloc]initWithProgressViewStyle:UIProgressViewStyleDefault];
    progressView.frame=CGRectMake([UIScreen mainScreen].bounds.size.width/2-150, 50, 300, 50);
    [progressView setProgress:0.68 animated:YES];

    progressView.transform=CGAffineTransformMakeScale(1.0, 8.0);//默认为2px，无法通过frame设置高度
    [self.view addSubview:progressView];
    [progressView setRadiusTrackColor:RGBCOLOR(231, 233, 238) progressColor:RGBCOLOR(255, 153,0)];


    //方式二 自定义HJProgressView  注意：#import "HJProgressView.h"
    HJProgressView *progressView2=[[HJProgressView alloc]initWithFrame:CGRectMake([UIScreen mainScreen].bounds.size.width/2-150, 100, 300,16)];
    progressView2.progressTintColor=RGBCOLOR(255, 153,0);
    [progressView2 setProgress:0.8 animated:YES];
    [self.view addSubview:progressView2];
}