Question

遇到问题：我在xib中使用自动布局查看控制器A设置，并通过pushViewController从主视图控制器推送。主视图控制器嵌入在导航控制器中。

我尝试使用pushViewController，推送视图控制器B，同一个类的另一个实例为A，

但我发现，即使在viewDidAppear和viewWillLayoutSubviews

之前，也会在B中调用viewDidLayoutSubviews

因此，当我试图在viewDidAppear中获取子视图的帧时，它是不正确的。怎么了？

一些痕迹：

2015-10-23 15:02:25.277 Compass[8199:1698308] -[BarLineChartViewController viewWillAppear:] line 89 $ axis chart VC will appear
2015-10-23 15:02:25.286 Compass[8199:1698308] -[BarLineChartViewController viewDidAppear:] line 106 $ axis chart VC did appear
2015-10-23 15:02:25.293 Compass[8199:1698308] -[ChartViewController viewDidAppear:] line 126 $ chart vc viewDidAppear
2015-10-23 15:02:25.298 Compass[8199:1698308] -[BarLineChartViewController viewWillLayoutSubviews] line 95 $ axis chart VC will LayoutSubviews
2015-10-23 15:02:25.303 Compass[8199:1698308] -[BarLineChartViewController viewWillLayoutSubviews] line 95 $ axis chart VC will LayoutSubviews
2015-10-23 15:02:25.310 Compass[8199:1698308] -[BarLineChartViewController viewDidLayoutSubviews] line 100 $ axis chart VC did LayoutSubviews

使用pushViewController时，在viewDidLayoutSubviews之前调用viewDidAppear

0 个答案: