进度条 UIProgressView 设置背景色及高度

iOS6，7均可使用，iOS7下更改进度条高度即可

CGRect rtTemp = CGRectMake(nSpaceX, nSpaceY * 2, popBgView.frame.size.width - 22 * nSpaceX, 20);

if (isPad)

{

rtTemp.size.height = 30;

}

UIProgressView* progressView = [[UIProgressView alloc] initWithFrame:rtTemp];

progressView.backgroundColor = [UIColor clearColor];

[progressView setProgress:self.fPercent];

//更改进度条高度

progressView.transform = CGAffineTransformMakeScale(1.0f,3.0f);

UIImage* imgTemp = [UIImage imageNamed:@"progress_off.png"];

CGFloat width = imgTemp.size.width/2.0;

CGFloat height = imgTemp.size.height/2.0;

UIImage *imgTrack = [[UIImage imageNamed:@"progress_off.png"]resizableImageWithCapInsets:UIEdgeInsetsMake(height, width, height, width)];

UIImage *imgProgress = [[UIImage imageNamed:@"progress_on.png"]resizableImageWithCapInsets:UIEdgeInsetsMake(height, width, height, width)];

[progressView setProgressImage:imgProgress];

[progressView setTrackImage:imgTrack];

[popBgView addSubview:progressView];

[progressView release];