ios - iOS 添加带有动画句点字符的加载文本

Question

不知道如何描述这一点，但是让 UILabel 显示 Loading，然后 Loading.，然后 Loading..，然后 Loading...，然后重复的最简单方法是什么？

我一直在研究计时器，但这似乎有点过分了。任何人都知道一个很酷且快速的技巧来完成这样的事情吗？谢谢！

Answer 1

Not sure about your specific use case (more info please or code?) but have you tried animation blocks? Something like:

- (void)animate
{
    __block UIView * blockSelf = self;

    [UIView animateWithDuration:0.1f animations:^{
        if ([blockSelf.label.text isEqualToString:@"Loading..."]) {
            blockSelf.label.text = @"Loading";
        } else {
            blockSelf.label.text = [NSString stringWithFormat:@"%@.", blockSelf.label.text];
        }
    } completion:^(BOOL finished) {
        if (blockSelf.processIsFinished) {
            [self moveOn];
        } else {
            [blockSelf animate];
        }
    }];
}

Alternatively, something like MBProgressHUD might be useful depending on what type of process is "loading".