• 进度条

1、UIProgressView 的创建

• 1.1 由 frame 创建

  // 高度不起作用UIProgressView *progressView = [[UIProgressView alloc] initWithFrame:CGRectMake(50, 100, 200, 0)];// 将 progressView 添加到 View[self.view addSubview:progressView];

• 1.2 由类型创建

  // 长度为系统默认长度UIProgressView *progressView = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleDefault];// 将 progressView 添加到 View[self.view addSubview:progressView];

2、UIProgressView 的设置

// 设置 frame，高度不起作用progressView.frame = CGRectMake(50, 100, 200, 0);// 设置位置progressView.center = self.view.center;// 设置进度条的类型/*UIProgressViewStyleDefault    // normal progress barUIProgressViewStyleBar        // for use in a toolbar*/progressView.progressViewStyle = UIProgressViewStyleBar;// 设置当前值/*范围 0～1*/progressView.progress = 0.8;[progressView setProgress:0.8 animated:YES];// 设置走过的颜色progressView.progressTintColor = [UIColor redColor];// 设置未走过的颜色progressView.trackTintColor = [UIColor blueColor];// 设置走过的图片progressView.progressImage = [UIImage imageNamed:@"pic1"];// 设置未走过的图片progressView.trackImage = [UIImage imageNamed:@"pic2"];