草庐IT

ios - WKWebView 约束弹出键盘时的问题

coder 2023-07-16 原文

当 WKWebView 中的输入获得焦点时，会弹出约束错误。

代码: 

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad();
        let wv = WKWebView(frame: CGRect(x: 100, y: 100, width: 100, height: 100));
        wv.loadHTMLString("<input type='text'/>", baseURL: nil); // it also can be select, it makes no difference
        view.addSubview(wv);
    }
}

错误日志:

2017-11-05 00:26:28.861439+0700 achievator[20048:75393577] [LayoutConstraints] Unable to simultaneously satisfy constraints.    Probably at least one of the constraints in the following list is one you don't want.   Try this:       (1) look at each constraint and try to figure out which you don't expect;       (2) find the code that added the unwanted constraint or constraints and fix it.     (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)  (
    "<NSAutoresizingMaskLayoutConstraint:0x60c0000955e0 h=-&- v=-&- UIToolbar:0x7f8540419570.width ==
_UIInputViewContent:0x7f8540411830.width   (active)>",
    "<NSAutoresizingMaskLayoutConstraint:0x60c000095720 h=--& v=--& _UIInputViewContent:0x7f8540411830.width == 0   (active)>",
    "<NSLayoutConstraint:0x60800009a9a0 H:|-(0)-[_UIButtonBarStackView:0x7f854041b2d0]   (active, names: '|':_UIToolbarContentView:0x7f8540402de0 )>",
    "<NSLayoutConstraint:0x60800009a9f0 _UIButtonBarStackView:0x7f854041b2d0.trailing == _UIToolbarContentView:0x7f8540402de0.trailing + 8   (active)>",
    "<NSLayoutConstraint:0x608000099a00 _UIToolbarContentView:0x7f8540402de0.trailing == UIToolbar:0x7f8540419570.trailing   (active)>",
    "<NSLayoutConstraint:0x608000099aa0 H:|-(0)-[_UIToolbarContentView:0x7f8540402de0]   (active, names: '|':UIToolbar:0x7f8540419570 )>",
    "<NSLayoutConstraint:0x6040000981a0 H:|-(0)-[_UIModernBarButton:0x7f854050ef70]   (active, names: '|':_UIButtonBarButton:0x7f854050e7f0 )>",
    "<NSLayoutConstraint:0x6040000981f0 H:[_UIModernBarButton:0x7f854050ef70]-(>=8)-|   (active, names: '|':_UIButtonBarButton:0x7f854050e7f0 )>",
    "<NSLayoutConstraint:0x6040000999b0 H:|-(8)-[_UIModernBarButton:0x7f8540512450'Done']   (active, names: '|':_UIButtonBarButton:0x7f8540511660 )>",
    "<NSLayoutConstraint:0x604000099a00 H:[_UIModernBarButton:0x7f8540512450'Done']-(0)-|   (active, names: '|':_UIButtonBarButton:0x7f8540511660 )>",
    "<NSLayoutConstraint:0x60c000094690 'UISV-canvas-connection' UILayoutGuide:0x6080001a9a00'UIViewLayoutMarginsGuide'.leading ==
_UIButtonBarButton:0x7f854050e7f0.leading   (active)>",
    "<NSLayoutConstraint:0x60c0000946e0 'UISV-canvas-connection' UILayoutGuide:0x6080001a9a00'UIViewLayoutMarginsGuide'.trailing ==
_UIButtonBarButton:0x7f8540511660.trailing   (active)>",
    "<NSLayoutConstraint:0x60c000094780 'UISV-spacing' H:[_UIButtonBarButton:0x7f854050e7f0]-(0)-[UIView:0x7f854050f4c0]   (active)>",
    "<NSLayoutConstraint:0x60c000094960 'UISV-spacing' H:[UIView:0x7f854050f4c0]-(0)-[_UIButtonBarButton:0x7f854050ea30]   (active)>",
    "<NSLayoutConstraint:0x60c000094a00 'UISV-spacing' H:[_UIButtonBarButton:0x7f854050ea30]-(0)-[UIView:0x7f8540511480]   (active)>",
    "<NSLayoutConstraint:0x60c000094a50 'UISV-spacing' H:[UIView:0x7f8540511480]-(0)-[_UIButtonBarButton:0x7f8540511660]   (active)>",
    "<NSLayoutConstraint:0x60800009a6d0 'UIView-leftMargin-guide-constraint' H:|-(0)-[UILayoutGuide:0x6080001a9a00'UIViewLayoutMarginsGuide'](LTR)  (active, names: '|':_UIButtonBarStackView:0x7f854041b2d0 )>",
    "<NSLayoutConstraint:0x60800009a770 'UIView-rightMargin-guide-constraint' H:[UILayoutGuide:0x6080001a9a00'UIViewLayoutMarginsGuide']-(0)-|(LTR)  (active, names: '|':_UIButtonBarStackView:0x7f854041b2d0 )>" )

Will attempt to recover by breaking constraint  <NSLayoutConstraint:0x6040000981f0 H:[_UIModernBarButton:0x7f854050ef70]-(>=8)-|   (active, names: '|':_UIButtonBarButton:0x7f854050e7f0 )>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger. The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful. 2017-11-05 00:26:28.863156+0700 achievator[20048:75393577] [LayoutConstraints] Unable to simultaneously satisfy constraints.     Probably at least one of the constraints in the following list is one you don't want.   Try this:       (1) look at each constraint and try to figure out which you don't expect;       (2) find the code that added the unwanted constraint or constraints and fix it.     (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)  (
    "<NSAutoresizingMaskLayoutConstraint:0x60c0000955e0 h=-&- v=-&- UIToolbar:0x7f8540419570.width ==
_UIInputViewContent:0x7f8540411830.width   (active)>",
    "<NSAutoresizingMaskLayoutConstraint:0x60c000095720 h=--& v=--& _UIInputViewContent:0x7f8540411830.width == 0   (active)>",
    "<NSLayoutConstraint:0x60800009a9a0 H:|-(0)-[_UIButtonBarStackView:0x7f854041b2d0]   (active, names: '|':_UIToolbarContentView:0x7f8540402de0 )>",
    "<NSLayoutConstraint:0x60800009a9f0 _UIButtonBarStackView:0x7f854041b2d0.trailing == _UIToolbarContentView:0x7f8540402de0.trailing + 8   (active)>",
    "<NSLayoutConstraint:0x608000099a00 _UIToolbarContentView:0x7f8540402de0.trailing == UIToolbar:0x7f8540419570.trailing   (active)>",
    "<NSLayoutConstraint:0x608000099aa0 H:|-(0)-[_UIToolbarContentView:0x7f8540402de0]   (active, names: '|':UIToolbar:0x7f8540419570 )>",
    "<NSLayoutConstraint:0x604000098560 H:|-(>=5)-[_UIModernBarButton:0x7f8540510b40]   (active, names: '|':_UIButtonBarButton:0x7f854050ea30 )>",
    "<NSLayoutConstraint:0x604000098650 H:[_UIModernBarButton:0x7f8540510b40]-(>=5)-|   (active, names: '|':_UIButtonBarButton:0x7f854050ea30 )>",
    "<NSLayoutConstraint:0x6040000999b0 H:|-(8)-[_UIModernBarButton:0x7f8540512450'Done']   (active, names: '|':_UIButtonBarButton:0x7f8540511660 )>",
    "<NSLayoutConstraint:0x604000099a00 H:[_UIModernBarButton:0x7f8540512450'Done']-(0)-|   (active, names: '|':_UIButtonBarButton:0x7f8540511660 )>",
    "<NSLayoutConstraint:0x60c000094690 'UISV-canvas-connection' UILayoutGuide:0x6080001a9a00'UIViewLayoutMarginsGuide'.leading ==
_UIButtonBarButton:0x7f854050e7f0.leading   (active)>",
    "<NSLayoutConstraint:0x60c0000946e0 'UISV-canvas-connection' UILayoutGuide:0x6080001a9a00'UIViewLayoutMarginsGuide'.trailing ==
_UIButtonBarButton:0x7f8540511660.trailing   (active)>",
    "<NSLayoutConstraint:0x60c000094780 'UISV-spacing' H:[_UIButtonBarButton:0x7f854050e7f0]-(0)-[UIView:0x7f854050f4c0]   (active)>",
    "<NSLayoutConstraint:0x60c000094960 'UISV-spacing' H:[UIView:0x7f854050f4c0]-(0)-[_UIButtonBarButton:0x7f854050ea30]   (active)>",
    "<NSLayoutConstraint:0x60c000094a00 'UISV-spacing' H:[_UIButtonBarButton:0x7f854050ea30]-(0)-[UIView:0x7f8540511480]   (active)>",
    "<NSLayoutConstraint:0x60c000094a50 'UISV-spacing' H:[UIView:0x7f8540511480]-(0)-[_UIButtonBarButton:0x7f8540511660]   (active)>",
    "<NSLayoutConstraint:0x60800009a6d0 'UIView-leftMargin-guide-constraint' H:|-(0)-[UILayoutGuide:0x6080001a9a00'UIViewLayoutMarginsGuide'](LTR)  (active, names: '|':_UIButtonBarStackView:0x7f854041b2d0 )>",
    "<NSLayoutConstraint:0x60800009a770 'UIView-rightMargin-guide-constraint' H:[UILayoutGuide:0x6080001a9a00'UIViewLayoutMarginsGuide']-(0)-|(LTR)  (active, names: '|':_UIButtonBarStackView:0x7f854041b2d0 )>" )

Will attempt to recover by breaking constraint  <NSLayoutConstraint:0x604000098650 H:[_UIModernBarButton:0x7f8540510b40]-(>=5)-|   (active, names: '|':_UIButtonBarButton:0x7f854050ea30 )>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger. The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.

最佳答案

我假设这是 ios 11 中的一个错误。投诉是关于键盘按钮栏中的组件，它们都使用操作系统设置的默认值。我在 ios 9 和 ios 10 上运行了相同的代码，没有收到任何错误消息。

关于ios - WKWebView 约束弹出键盘时的问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/47113661/

WKWebViewiosNSLayoutConstraint0x39swift

有关ios - WKWebView 约束弹出键盘时的问题的更多相关文章

  1. ruby - 在 64 位 Snow Leopard 上使用 rvm、postgres 9.0、ruby 1.9.2-p136 安装 pg gem 时出现问题 - 2

    我想为Heroku构建一个Rails3应用程序。他们使用Postgres作为他们的数据库，所以我通过MacPorts安装了postgres9.0。现在我需要一个postgresgem并且共识是出于性能原因你想要pggem。但是我对我得到的错误感到非常困惑当我尝试在rvm下通过geminstall安装pg时。我已经非常明确地指定了所有postgres目录的位置可以找到但仍然无法完成安装:$envARCHFLAGS='-archx86_64'geminstallpg--\--with-pg-config=/opt/local/var/db/postgresql90/defaultdb/po

  2. ruby - 多次弹出/移动 ruby​​ 数组 - 2

    我的代码目前看起来像这样numbers=[1,2,3,4,5]defpop_threepop=[]3.times{pop有没有办法在一行中完成pop_three方法中的内容？我基本上想做类似numbers.slice(0,3)的事情，但要删除切片中的数组项。嗯...嗯，我想我刚刚意识到我可以试试slice! 最佳答案 是numbers.pop(3)或者numbers.shift(3)如果你想要另一边。 关于ruby-多次弹出/移动ruby​​数组，我们在StackOverflow上找到一

  3. ruby - 通过 rvm 升级 ruby​​gems 的问题 - 2

    尝试通过RVM将RubyGems升级到版本1.8.10并出现此错误:$rvmrubygemslatestRemovingoldRubygemsfiles...Installingrubygems-1.8.10forruby-1.9.2-p180...ERROR:Errorrunning'GEM_PATH="/Users/foo/.rvm/gems/ruby-1.9.2-p180:/Users/foo/.rvm/gems/ruby-1.9.2-p180@global:/Users/foo/.rvm/gems/ruby-1.9.2-p180:/Users/foo/.rvm/gems/rub

  4. ruby - 通过 RVM (OSX Mountain Lion) 安装 Ruby 2.0.0-p247 时遇到问题 - 2

    我的最终目标是安装当前版本的RubyonRails。我在OSXMountainLion上运行。到目前为止，这是我的过程:已安装的RVM$\curl-Lhttps://get.rvm.io|bash-sstable检查已知(我假设已批准)安装$rvmlistknown我看到当前的稳定版本可用[ruby-]2.0.0[-p247]输入命令安装$rvminstall2.0.0-p247注意:我也试过这些安装命令$rvminstallruby-2.0.0-p247$rvminstallruby=2.0.0-p247我很快就无处可去了。结果:$rvminstall2.0.0-p247Search

  5. ruby - Fast-stemmer 安装问题 - 2

    由于fast-stemmer的问题，我很难安装我想要的任何ruby​​gem。我把我得到的错误放在下面。Buildingnativeextensions.Thiscouldtakeawhile...ERROR:Errorinstallingfast-stemmer:ERROR:Failedtobuildgemnativeextension./System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/rubyextconf.rbcreatingMakefilemake"DESTDIR="cleanmake"DESTDIR=

  6. ruby - 在 Ruby 中用键盘诅咒数组浏览 - 2

    我正在尝试在Ruby中制作一个cli应用程序，它接受一个给定的数组，然后将其显示为一个列表，我可以使用箭头键浏览它。我觉得我已经在Ruby中看到一个库已经这样做了，但我记不起它的名字了。我正在尝试对soundcloud2000中的代码进行逆向工程做类似的事情，但他的代码与SoundcloudAPI的使用紧密耦合。我知道cursesgem，我正在考虑更抽象的东西。广告有没有人见过可以做到这一点的库或一些概念证明的Ruby代码可以做到这一点？ 最佳答案 我不知道这是否是您正在寻找的，但也许您可以使用我的想法。由于我没有关于您要完成的工作

  7. ruby - 如何验证 IO.copy_stream 是否成功 - 2

    这里有一个很好的答案解释了如何在Ruby中下载文件而不将其加载到内存中:https://stackoverflow.com/a/29743394/4852737require'open-uri'download=open('http://example.com/image.png')IO.copy_stream(download,'~/image.png')我如何验证下载文件的IO.copy_stream调用是否真的成功——这意味着下载的文件与我打算下载的文件完全相同，而不是下载一半的损坏文件？documentation说IO.copy_stream返回它复制的字节数，但是当我还没有下

  8. ruby - 安装 Ruby 时遇到问题(无法下载资源 "readline--patch") - 2

    当我尝试安装Ruby时遇到此错误。我试过查看this和this但无济于事➜~brewinstallrubyWarning:YouareusingOSX10.12.Wedonotprovidesupportforthispre-releaseversion.Youmayencounterbuildfailuresorotherbreakages.Pleasecreatepull-requestsinsteadoffilingissues.==>Installingdependenciesforruby:readline,libyaml,makedepend==>Installingrub

  9. Ruby 文件 IO 定界符？ - 2

    我正在尝试解析一个文本文件，该文件每行包含可变数量的单词和数字，如下所示:foo4.500bar3.001.33foobar如何读取由空格而不是换行符分隔的文件？有什么方法可以设置File("file.txt").foreach方法以使用空格而不是换行符作为分隔符？ 最佳答案 接受的答案将slurp文件，这可能是大文本文件的问题。更好的解决方案是IO.foreach.它是惯用的，将按字符流式传输文件:File.foreach(filename,""){|string|putsstring}包含“thisisanexample”结果的

  10. java - 从 JRuby 调用 Java 类的问题 - 2

    我正在尝试使用boilerpipe来自JRuby。我看过guide从JRuby调用Java，并成功地将它与另一个Java包一起使用，但无法弄清楚为什么同样的东西不能用于boilerpipe。我正在尝试基本上从JRuby中执行与此Java等效的操作:URLurl=newURL("http://www.example.com/some-location/index.html");Stringtext=ArticleExtractor.INSTANCE.getText(url);在JRuby中试过这个:require'java'url=java.net.URL.new("http://www

随机推荐