[英]App crashes when using a swiftUI textfield and a WKWebView textfield
我目前有一个应用程序,它使用网站文本字段上方的 SwiftUI 文本字段(比如说搜索框)。 该应用程序不会在 iOS 或 iPadOS 中崩溃。
但是,在 M1 mac 上的 MacCatalyst 中,当我单击 SwiftUI 文本字段然后单击网站上的搜索栏时,应用程序会立即崩溃。
我创建了一个附在下面的可重现示例(在 XCode 13.2.1 中运行)
要重现崩溃:
在 Rosetta 上运行时,日志中也会发生崩溃,但应用程序不会终止。
有谁知道问题是什么以及我该如何解决? 先感谢您。
import SwiftUI
import WebKit
struct ContentView: View {
@State var textObject: String = ""
var body: some View {
ZStack {
WebView(url: URL(string: "https://google.com")!)
TextField("", text: $textObject)
.background(
Rectangle()
.foregroundColor(.black)
)
}
}
}
struct WebView: UIViewRepresentable {
var url: URL
func makeUIView(context: Context) -> WKWebView {
return WKWebView()
}
func updateUIView(_ webView: WKWebView, context: Context) {
let request = URLRequest(url: url)
webView.load(request)
}
}
这是来自 XCode 的错误消息: libc++abi: terminating with uncaught exception of type NSException *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid parameter not satisfying: <SPRoundedWindow: 0x126774250>. "frame=!CGRectIsNull(frame)"' terminating with uncaught exception of type NSException
libc++abi: terminating with uncaught exception of type NSException *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid parameter not satisfying: <SPRoundedWindow: 0x126774250>. "frame=!CGRectIsNull(frame)"' terminating with uncaught exception of type NSException
我的崩溃痕迹:
0 CoreFoundation 0x00000001848001cc __exceptionPreprocess + 240
1 libobjc.A.dylib 0x00000001845517b8 objc_exception_throw + 60
2 Foundation 0x000000018576e840 -[NSMutableDictionary(NSMutableDictionary) initWithContentsOfFile:] + 0
3 AppKit 0x0000000187328f20 -[NSWindow _reallySetFrame:] + 904
4 AppKit 0x00000001873287d8 -[NSWindow _oldPlaceWindow:fromServer:] + 228
5 AppKit 0x00000001873277f8 -[NSWindow _setFrameCommon:display:fromServer:] + 2200
6 SafariPlatformSupport 0x00000001aac63104 __85-[SPSafariPlatformSupport displayOTPAutoFillRelativeToRect:ofView:completionHandler:]_block_invoke + 300
7 SafariPlatformSupport 0x00000001aac62f8c -[SPSafariPlatformSupport displayOTPAutoFillRelativeToRect:ofView:completionHandler:] + 228
8 UIKitCore 0x00000001ac7317a0 -[UIKeyboardImpl generateAutofillCandidateByAddingTask:] + 948
9 UIKitCore 0x00000001ac73b8d0 -[UIKeyboardImpl setDelegate:force:] + 6248
10 UIKitCore 0x00000001ac41fad4 -[UIKeyboardSceneDelegate _reloadInputViewsForKeyWindowSceneResponder:] + 2080
11 UIKitCore 0x00000001ac41f288 -[UIKeyboardSceneDelegate _reloadInputViewsForResponder:] + 164
12 UIKitCore 0x00000001abd918a0 -[UIResponder(UIResponderInputViewAdditions) reloadInputViews] + 132
13 UIKitCore 0x00000001abd3a298 -[UIResponder becomeFirstResponder] + 856
14 UIKit 0x0000000202830aa4 -[UITextInputUIResponderAccessibility becomeFirstResponder] + 52
15 UIKitCore 0x00000001abd6a100 -[UIView(Hierarchy) becomeFirstResponder] + 176
16 WebKit 0x00000001bd66c5c0 -[WKContentView(WKInteraction) becomeFirstResponderForWebView] + 152
17 WebKit 0x00000001bd246768 -[WKWebView(WKViewInternalIOS) becomeFirstResponder] + 148
18 WebKit 0x00000001bd67f88c -[WKContentView(WKInteraction) _elementDidFocus:userIsInteracting:blurPreviousNode:activityStateChanges:userObject:] + 1840
19 WebKit 0x00000001bd381ea0 _ZN6WebKit12WebPageProxy15elementDidFocusERKNS_25FocusedElementInformationEbbN3***9OptionSetIN7WebCore13ActivityState4FlagEEERKNS_8UserDataE + 216
20 WebKit 0x00000001bd5f66b8 _ZN6WebKit12WebPageProxy17didReceiveMessageERN3IPC10ConnectionERNS1_7DecoderE + 61472
21 WebKit 0x00000001bcfcc5cc _ZN3IPC18MessageReceiverMap15dispatchMessageERNS_10ConnectionERNS_7DecoderE + 272
22 WebKit 0x00000001bd35a284 _ZN6WebKit15WebProcessProxy17didReceiveMessageERN3IPC10ConnectionERNS1_7DecoderE + 40
23 WebKit 0x00000001bcfaeb4c _ZN3IPC10Connection15dispatchMessageENSt3__110unique_ptrINS_7DecoderENS1_14default_deleteIS3_EEEE + 808
24 WebKit 0x00000001bcfae15c _ZN3IPC10Connection24dispatchIncomingMessagesEv + 508
25 JavaScriptCore 0x00000001bc5278d0 _ZN3***7RunLoop11performWorkEv + 292
26 JavaScriptCore 0x00000001bc528a40 _ZN3***7RunLoop11performWorkEPv + 36
27 CoreFoundation 0x0000000184780c5c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28
28 CoreFoundation 0x0000000184780ba8 __CFRunLoopDoSource0 + 208
29 CoreFoundation 0x0000000184780894 __CFRunLoopDoSources0 + 268
30 CoreFoundation 0x000000018477f208 __CFRunLoopRun + 820
31 CoreFoundation 0x000000018477e734 CFRunLoopRunSpecific + 600
32 HIToolbox 0x000000018d310f68 RunCurrentEventLoopInMode + 292
33 HIToolbox 0x000000018d310cdc ReceiveNextEventCommon + 552
34 HIToolbox 0x000000018d310a9c _BlockUntilNextEventMatchingListInModeWithFilter + 72
35 AppKit 0x00000001872d4ce0 _DPSNextEvent + 844
36 AppKit 0x00000001872d3584 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1332
37 AppKit 0x00000001872c55a4 -[NSApplication run] + 596
38 AppKit 0x0000000187296c78 NSApplicationMain + 1064
39 AppKit 0x000000018756d084 +[NSWindow _savedFrameFromString:] + 0
40 UIKitMacHelper 0x0000000199c7d9ac UINSApplicationMain + 1280
41 UIKitCore 0x00000001abc0ab28 UIApplicationMain + 164
42 SwiftUI 0x00000001c0fce8b0 $s7SwiftUI17KitRendererCommon33_ACC2C5639A7D76F611E170E831FCA491LLys5NeverOyXlXpFAESpySpys4Int8VGSgGXEfU_ + 164
43 SwiftUI 0x00000001c0fce808 $s7SwiftUI6runAppys5NeverOxAA0D0RzlF + 252
44 SwiftUI 0x00000001c08f54cc $s7SwiftUI3AppPAAE4mainyyFZ + 128
45 TestingGround 0x000000010056d634 $s13TestingGround0aB3AppV5$mainyyFZ + 40
46 TestingGround 0x000000010056d6d4 main + 12
47 dyld 0x00000001015a50f4 start + 520
我不确定这里的违规者是什么,可能是 MacCatalyst 本身,但答案实际上是在文本字段上禁用自动更正。
原因是因为运行 MacCatalyst 应用程序假定有一个带有 TextField 的虚拟键盘,因此此类错误经常出现在生产代码中。 出于某种原因,这会导致 M1 设备崩溃。 禁用预测文本是解决此问题的方法。 这是代码:
import SwiftUI
import WebKit
struct ContentView: View {
@State var textObject: String = ""
var body: some View {
ZStack {
WebView(url: URL(string: "https://google.com")!)
TextField("", text: $textObject)
.background(
Rectangle()
.foregroundColor(.black)
)
.disableAutoCorrection(true)
}
}
}
struct WebView: UIViewRepresentable {
var url: URL
func makeUIView(context: Context) -> WKWebView {
return WKWebView()
}
func updateUIView(_ webView: WKWebView, context: Context) {
let request = URLRequest(url: url)
webView.load(request)
}
}
我通过调配私有方法-[NSWindow _reallySetFrame:]
并手动更正错误输入来解决此崩溃问题。 到目前为止,我还没有发现这种调酒的任何副作用。
@objc private extension NSWindow {
func kjy_swizzle_reallySetFrame(_ frame: CGRect) {
var frame = frame
if frame.isNull {
frame = .zero
}
kjy_swizzle_reallySetFrame(frame)
}
}
注意:这不是解决方法的完整源代码(您需要添加代码来调配私有NSWindow
方法)。 如果您不熟悉“method swizzling”,请在互联网上搜索。
我在使用 maccatalyst 的 WKWebView 的 swift 中也遇到了同样的崩溃。 最后尝试了不同的解决方案后,我添加了这段代码来修复我的崩溃。
typealias winClosureType = @convention(c) (Any, Selector) -> UITextAutocorrectionType
func swizzleInputTraits() {
guard let textInputTraits: AnyClass = NSClassFromString("UITextInputTraits") else { return }
let sel_AutocorrectionType: Selector = sel_getUid("autocorrectionType")
if let method = class_getInstanceMethod(textInputTraits, sel_AutocorrectionType) {
let originalImp: IMP = method_getImplementation(method)
let original: winClosureType = unsafeBitCast(originalImp, to: winClosureType.self)
let block : @convention(block) (Any) -> UITextAutocorrectionType = { (textInputTraits) in
let obj = original(textInputTraits, sel_AutocorrectionType)
return obj == .default ? .no : obj
}
let imp: IMP = imp_implementationWithBlock(block)
method_setImplementation(method, imp)
}
}
在这里,我正在调整 UITextInputTraits 的 autocorrectionType 属性。 我默认为所有文本字段禁用自动更正类型。 如果任何文本字段需要,我们必须显式启用 autocorrectionType 属性。
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