UIProgressView 详解

//进度条
    UIProgressView *aProgressView = [[UIProgressView alloc] initWithProgressViewStyle: UIProgressViewStyleDefault];
    CGRect frame = aProgressView.frame;
    frame.size.width = SCREEN_WIDTH-(10+106/2+30/2)-130/2;
    frame.origin.x = 10+106/2+30/2;
    frame.origin.y = (30+28+30+20+16)/2;
    aProgressView.frame = frame;
    aProgressView.trackImage = kImageLightGray;
    aProgressView.progressImage = kImageOrange;
    aProgressView.progress = 0.1f;
    CGAffineTransform transform =CGAffineTransformMakeScale(1.0f,1.0f);
    aProgressView.transform = transform;
    [self.contentView addSubview: aProgressView];
    SQRelease(aProgressView)