UIProgressView進度條的屬性介紹

> > > > > - (void)viewDidLoad {
> > 
> > [super viewDidLoad];
> > UIProgressView*oneProgressView = [[UIProgressView alloc]init];
> //設置UIProgressView的位置和大小
> > oneProgressView.frame=CGRectMake(0,30,320,30);
> 
>  //改變進度條的高度
> > self.oneProgressView.transform = CGAffineTransformMakeScale(1.0f, 4.0f);
> //設置背景色
> > oneProgressView.backgroundColor= [UIColor clearColor];
> //進度條風格 就兩種
> > oneProgressView.progressViewStyle = UIProgressViewStyleDefault;
> //設置透明度範圍在0.0-1.0之間0.0爲全透明
> > oneProgressView.alpha=1.0; 
> //設置已過進度部分的顏色
> > oneProgressView.progressTintColor= [UIColor yellowColor]; 
> //設置未過進度部分的顏色 
> > oneProgressView.trackTintColor= [UIColor blackColor];
> //設置初始值，範圍在0.0-1.0之間，默認是0.0
> > oneProgressView.progress=0.2;
> //設置初始值，能夠看到動畫效果
> >  [oneProgressView setProgress:0.8 animated:YES]; 
> 
> >   oneProgressView.progressImage = [UIImage imageNamed:@"hsp_07"];
>     oneProgressView.trackImage = [UIImage imageNamed:@"hsp_08"];
> //添加到視圖上
> > [self.view addSubview:pview];
> > }