我对<代码>有一个小问题。 ZXingWidgetController,如果我介绍使用导航控制器的控制器,这种观点就会被推走,然而,将有一个大约1.5秒的空白屏幕,然后AVCapture开始。 然而,如果我把它作为模式提出,则“AVCapture在提出该模式后立即启动。
我修改了<代码>WidgetController。 很奇怪,因为我需要使用相同的<条码>AVCapture窗户阅读其他种类的条码,而这种条码是完全有效的。 虽然这可能是问题,但在尝试与未经修改的温得克主计长一起的桑多尔试验并将之推向一夫控制器之后,行为也是一样的。 因此,这不是问题。
我曾尝试过一次拖延,但在拖延之后,这种观点仍然被推向前进,一个nk头开始。
是否有人处理这个问题?
回到今天的工作,仔细研究法典......问题实际上非常简单,AVCapture开端方法在观念上被称作“DidAppear”方法,我把它移到“WillAppear”方法上,问题得到解决。
你们是否有显示这一点的mo?
我不能够想到为什么要介绍控制员。 装货车需要时间,这是你第一次提出需要更长时间的东西。 并且,ZXWdidgetController确实避开了AVFF的物体:只要观点出现和消失,就会产生并删除这些物体。 但是,所有这些东西都应该是相同的,无论植被的提出方式如何,只要它首先与否。
In general, the capture usually shows an old image briefly while the AVFF starts the camera. This is pretty much true of all camera related apps as far as I know (and would be happy to be corrected.) But I don t think it s usually anything like 1500 ms.
请注意,拖延情况在夸张下更为明显,大概是因为随着框架的负荷,它具有装货标志等。
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