UIActivityIndi​​catorView或类似的

问题描述

谁能告诉我如何实现这样的加载消息？它是UIActivityIndi​​catorView的一些变体吗？
谢谢
peter

Can anyone tell me how to achieve such loading message? is it some variation of UIActivityIndicatorView?thankspeter

推荐答案

在您的自定义子类UIView的initWithFrame中类似于以下内容：

Something similar to the following in your initWithFrame of your custom subclassed UIView:

    _hudView = [[UIView alloc] initWithFrame:CGRectMake(75, 155, 170, 170)];
    _hudView.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.5];
    _hudView.clipsToBounds = YES;
    _hudView.layer.cornerRadius = 10.0;

    _activityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
    _activityIndicatorView.frame = CGRectMake(65, 40, _activityIndicatorView.bounds.size.width, _activityIndicatorView.bounds.size.height);
    [_hudView addSubview:_activityIndicatorView];
    [_activityIndicatorView startAnimating];

    _captionLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 115, 130, 22)];
    _captionLabel.backgroundColor = [UIColor clearColor];
    _captionLabel.textColor = [UIColor whiteColor];
    _captionLabel.adjustsFontSizeToFitWidth = YES;
    _captionLabel.textAlignment = NSTextAlignmentCenter;
    _captionLabel.text = @"Loading...";
    [_hudView addSubview:_captionLabel];

    [self addSubview:_hudView];

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