iOS 学习进度条展示

WX20180907-093815@2x.png

self.coverView = [[UIView alloc] init];
    self.coverView.backgroundColor = [UIColor blackColor];
    self.coverView.alpha = 0.65;
    [self.leftLogoImv addSubview:self.coverView];
    
    self.progressView = [[UIProgressView alloc] init];
    self.progressView.progressTintColor = [UIColor whiteColor];
    self.progressView.trackTintColor =[[UIColor whiteColor]colorWithAlphaComponent:0.5];
    self.progressView.progress = 0.3;
    self.progressView.progressViewStyle=UIProgressViewStyleDefault;
    for (UIImageView * imageview in self.progressView.subviews) {
        imageview.layer.cornerRadius = 2.5;
        imageview.clipsToBounds = YES;
    }
    [self.leftLogoImv addSubview:self.progressView];