UIView 框架设置错误，视图的原点为 {nan, nan}。
这是我的代码的一部分。
NSLog(@"fr: %@", NSStringFromCGRect(frame_)); NSLog(@"org: %@",
NSStringFromCGPoint(frame_.origin)); // cell.frame = frame_; [cell
setFrame: frame_];
NSLog(@"c: %@", cell); NSLog(@"c frame: %@",
NSStringFromCGRect(cell.frame));
打印出来的结果令人惊讶。有人对此有任何想法吗？帮助和感谢。
[657:707] fr: {{350, 600}, {175, 300}}
[657:707] org: {350, 600}
[657:707] c: <JXUIGridViewCell: 0xf62d3c0; frame = (nan nan; 175 300); tag = 4010; animations = { position=<CABasicAnimation: 0x15b4a0>; bounds=<CABasicAnimation: 0x15b540>; }; layer = <CALayer: 0xf62d400>>
[657:707] c frame: {{nan, nan}, {175, 300}}
This is part of my code.
NSLog(@"fr: %@", NSStringFromCGRect(frame_)); NSLog(@"org: %@",
NSStringFromCGPoint(frame_.origin)); // cell.frame = frame_; [cell
setFrame: frame_];
NSLog(@"c: %@", cell); NSLog(@"c frame: %@",
NSStringFromCGRect(cell.frame));
And the printouts are surprising. Anyone got any idea on this? help and thanks.
[657:707] fr: {{350, 600}, {175, 300}}
[657:707] org: {350, 600}
[657:707] c: <JXUIGridViewCell: 0xf62d3c0; frame = (nan nan; 175 300); tag = 4010; animations = { position=<CABasicAnimation: 0x15b4a0>; bounds=<CABasicAnimation: 0x15b540>; }; layer = <CALayer: 0xf62d400>>
[657:707] c frame: {{nan, nan}, {175, 300}}
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实际上我也在寻找这个问题的答案。但还是不够。
但事实证明，如果您在任何时候将视图的原点设置为 nan，那么它就会保留。因此它永远不能再改变。
解决方案：切勿将视图原点设置为 nan。
I was actually looking for an answer for this very problem as well. But came up short.
But it turns out, that if you at any point set the origin of a view to nan, then it will stick. Thus it can never be changed again.
Solution: Never set origin of view to nan.