关于改变UIProgressView的宽、高以及两端弧度

self.progressView = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleDefault];//这里是设定progressView的模式为默认模式
self.progressView.frame = CGRectMake(16, CGRectGetMaxY(label1.frame) + 15, SCREEN_WIDTH - 32 - image3.size.width - 25, 8);
self.progressView.progressTintColor=COLOR_THEME;//设定progressView的显示颜色
CGAffineTransform transform = CGAffineTransformMakeScale(1.0f, 2.0f);
self.progressView.transform = transform;//设定宽高
self.progressView.trackImage = image4;
self.progressView.contentMode = UIViewContentModeScaleAspectFill;
//设定两端弧度
self.progressView.layer.cornerRadius = 1.0;
self.progressView.layer.masksToBounds = YES;
//设定progressView的现实进度（一般情况下可以从后台获取到这个数字）
[self.progressView setProgress:0.70 animated:YES];
[self.view addSubview:self.progressView];