UIProgressView进度条的属性介绍

> > > > > - (void)viewDidLoad {
> > 
> > [super viewDidLoad];
> > UIProgressView*oneProgressView = [[UIProgressView alloc]init];
> //设置UIProgressView的位置和大小
> > oneProgressView.frame=CGRectMake(0,30,320,30);
> 
>  //改变进度条的高度
> > self.oneProgressView.transform = CGAffineTransformMakeScale(1.0f, 4.0f);
> //设置背景色
> > oneProgressView.backgroundColor= [UIColor clearColor];
> //进度条风格 就两种
> > oneProgressView.progressViewStyle = UIProgressViewStyleDefault;
> //设置透明度范围在0.0-1.0之间0.0为全透明
> > oneProgressView.alpha=1.0; 
> //设置已过进度部分的颜色
> > oneProgressView.progressTintColor= [UIColor yellowColor]; 
> //设置未过进度部分的颜色 
> > oneProgressView.trackTintColor= [UIColor blackColor];
> //设置初始值，范围在0.0-1.0之间，默认是0.0
> > oneProgressView.progress=0.2;
> //设置初始值，能够看到动画效果
> >  [oneProgressView setProgress:0.8 animated:YES]; 
> 
> >   oneProgressView.progressImage = [UIImage imageNamed:@"hsp_07"];
>     oneProgressView.trackImage = [UIImage imageNamed:@"hsp_08"];
> //添加到视图上
> > [self.view addSubview:pview];
> > }