6

当我实现此方法时，我对 MKMapViewDelegate 有一个非常奇怪的问题，给我一个我不理解的错误

只有当我删除整个功能时，错误才会消失，

我试图创建一个返回 nil 的空函数，但给了我同样的错误。

func mapView(mapView: MKMapView!, viewForAnnotation annotation: MKAnnotation!) -> MKAnnotationView! {

  if annotation.isKindOfClass(MKUserLocation.classForCoder()) {
        return nil
    }
    let AnnotationIdentifier:NSString = "AnnotationIdentifier"
    var annotationView = mapView.dequeueReusableAnnotationViewWithIdentifier(AnnotationIdentifier)

    if annotationView != nil {
        return annotationView
    }else {
        var annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: AnnotationIdentifier)

        annotationView.canShowCallout = true
        annotationView.image = UIImage(named: "btn_fav.png")


        return annotationView

    }


}

错误：由于信号而导致命令失败：分段错误：11

CompileSwift normal arm64 /Users/Fortis/Proyectos/IOS Apps/Abilia/Abilia iOS/Abilia/Abilia/Vistas/Proyecto/MapaViewController.swift
    cd /Users/Fortis/Proyectos/IOS Apps/Abilia/Abilia iOS/Abilia
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c "/Users/Fortis/Proyectos/IOS Apps/Abilia/Abilia iOS/Abilia/Abilia/Classes/NetClass/Downloader.swift" -primary-file "/Users/Fortis/Proyectos/IOS Apps/Abilia/Abilia iOS/Abilia/Abilia/Vistas/Proyecto/MapaViewController.swift" "/Users/Fortis/Proyectos/IOS Apps/Abilia/Abilia iOS/Abilia/Abilia/Vistas/Widget/ToggleView.swift" .

. . .

0  swift                    0x00000001019df028 llvm::sys::PrintStackTrace(__sFILE*) + 40
1  swift                    0x00000001019df514 SignalHandler(int) + 452
2  libsystem_platform.dylib 0x00007fff9a2dc5aa _sigtramp + 26
3  libsystem_platform.dylib 000000000000000000 _sigtramp + 1708276336
4  swift                    0x0000000100fe90ea swift::ClangImporter::Implementation::loadAllMembers(swift::Decl const*, unsigned long long, bool*) + 3130
5  swift                    0x0000000101da2834 swift::IterableDeclContext::loadAllMembers() const + 100
6  swift                    0x0000000101d995dc swift::NominalTypeDecl::getMembers(bool) const + 28
7  swift                    0x0000000101dc029f swift::NominalTypeDecl::lookupDirect(swift::DeclName) + 79
8  swift                    0x0000000101dbe96a swift::DeclContext::lookupQualified(swift::Type, swift::DeclName, unsigned int, swift::LazyResolver*, llvm::SmallVectorImpl<swift::ValueDecl*>&) const + 3146
9  swift                    0x0000000100fe5941 (anonymous namespace)::SwiftDeclConverter::VisitObjCPropertyDecl(clang::ObjCPropertyDecl const*, swift::DeclContext*) + 161
10 swift                    0x0000000100fe0d0d clang::declvisitor::Base<clang::declvisitor::make_const_ptr, (anonymous namespace)::SwiftDeclConverter, swift::Decl*>::Visit(clang::Decl const*) + 3117
11 swift                    0x0000000100fe005b swift::ClangImporter::Implementation::importDeclImpl(clang::NamedDecl const*, bool&, bool&) + 331
12 swift                    0x0000000100fe4912 swift::ClangImporter::Implementation::importDeclAndCacheImpl(clang::NamedDecl const*, bool) + 226
13 swift                    0x0000000100fe879e swift::ClangImporter::Implementation::loadAllMembers(swift::Decl const*, unsigned long long, bool*) + 750
14 swift                    0x0000000101da2834 swift::IterableDeclContext::loadAllMembers() const + 100
15 swift                    0x0000000101d99a95 swift::ExtensionDecl::getMembers(bool) const + 21
16 swift                    0x0000000101dc027d swift::NominalTypeDecl::lookupDirect(swift::DeclName) + 45
17 swift                    0x0000000101dbe96a swift::DeclContext::lookupQualified(swift::Type, swift::DeclName, unsigned int, swift::LazyResolver*, llvm::SmallVectorImpl<swift::ValueDecl*>&) const + 3146
18 swift                    0x0000000101cc6288 swift::TypeChecker::lookupMember(swift::Type, swift::DeclName, swift::DeclContext*, bool) + 200
19 swift                    0x0000000101c34e2c swift::constraints::ConstraintSystem::lookupMember(swift::Type, swift::DeclName) + 220
20 swift                    0x0000000101c6b32d swift::constraints::ConstraintSystem::simplifyMemberConstraint(swift::constraints::Constraint const&) + 2173
21 swift                    0x0000000101c6dc88 swift::constraints::ConstraintSystem::simplifyConstraint(swift::constraints::Constraint const&) + 216
22 swift                    0x0000000101c354bc swift::constraints::ConstraintSystem::addConstraint(swift::constraints::Constraint*, bool, bool) + 28
23 swift                    0x0000000101c5a8a5 swift::ASTVisitor<(anonymous namespace)::ConstraintGenerator, swift::Type, void, void, void, void, void>::visit(swift::Expr*) + 9317
24 swift                    0x0000000101c5c502 (anonymous namespace)::ConstraintWalker::walkToExprPost(swift::Expr*) + 162
25 swift                    0x0000000101d6627f (anonymous namespace)::Traversal::visit(swift::Expr*) + 6431
26 swift                    0x0000000101d62765 swift::Expr::walk(swift::ASTWalker&) + 53
27 swift                    0x0000000101c583b0 swift::constraints::ConstraintSystem::generateConstraints(swift::Expr*) + 96
28 swift                    0x0000000101c90ab6 swift::TypeChecker::typeCheckExpression(swift::Expr*&, swift::DeclContext*, swift::Type, swift::Type, bool, swift::FreeTypeVariableBinding, swift::ExprTypeCheckListener*) + 518
29 swift                    0x0000000101cd73e3 swift::ASTVisitor<(anonymous namespace)::StmtChecker, void, swift::Stmt*, void, void, void, void>::visit(swift::Stmt*) + 291
30 swift                    0x0000000101cd64c3 swift::TypeChecker::typeCheckFunctionBodyUntil(swift::FuncDecl*, swift::SourceLoc) + 371
31 swift                    0x0000000101cd6b8f swift::TypeChecker::typeCheckAbstractFunctionBody(swift::AbstractFunctionDecl*) + 95
32 swift                    0x0000000101c86b65 typeCheckFunctionsAndExternalDecls(swift::TypeChecker&) + 421
33 swift                    0x0000000101c87476 swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, unsigned int) + 1734
34 swift                    0x0000000100fc07dd swift::CompilerInstance::performSema() + 2253
35 swift                    0x0000000100d54831 frontend_main(llvm::ArrayRef<char const*>, char const*, void*) + 1953
36 swift                    0x0000000100d5294d main + 1677
37 libdyld.dylib            0x00007fff960e05fd start + 1
38 libdyld.dylib            0x0000000000000061 start + 1777465957
Stack dump:
0.  Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c /Users/Fortis/Proyectos/IOS Apps/Abilia/Abilia iOS/Abilia/Abilia/Classes/NetClass/Downloader.swift -primary-file /Users/Fortis/Proyectos/IOS Apps/Abilia/Abilia iOS/Abilia/Abilia/Vistas/Proyecto/MapaViewController.swift /Users/Fortis/Proyectos/IOS Apps/Abilia/Abilia iOS/Abilia/Abilia/Vistas/Widget/ToggleView.swift /Users/Fortis/Proyectos/IOS Apps/Abilia/Abilia iOS/Abilia/Abilia/Classes/Entities/Mapa.swift /Users/Fortis/Proyectos/IOS Apps/Abilia/Abilia iOS/Abilia/Abilia/Classes/Entities/Edificio__c.swift .

. . . . 1. 在 /Users/Fortis/Proyectos/IOS Apps/Abilia/Abilia iOS/Abilia/Abilia/Vistas/Proyecto/MapaViewController.swift:56:5 处对 'loadMapa' 进行类型检查时 2. 在 [/ 处对表达式进行类型检查时用户/Fortis/Proyectos/IOS 应用程序/Abilia/Abilia iOS/Abilia/Abilia/Vistas/Proyecto/MapaViewController.swift:57:9 - line:57:29] RangeText="mapaView.delegate = s"

func loadMapa () {
        mapaView.delegate = self
        var theCoord = CLLocationCoordinate2DMake(0, 0)
        if let coordenadasU = coordenadas {
            let coordArray:[NSString] = coordenadasU.componentsSeparatedByString(",") as [NSString]
            if coordArray.count > 1 {
                let lat: CLLocationDegrees = coordArray[0].doubleValue;
                let long: CLLocationDegrees = coordArray[1].doubleValue;
                theCoord = CLLocationCoordinate2DMake(lat, long)


            }

        }

        pointAnnotation.coordinate = theCoord;
        mapaView.addAnnotation(pointAnnotation)

        let span = MKCoordinateSpan(latitudeDelta: 0.1, longitudeDelta: 0.1)
        let region:MKCoordinateRegion = MKCoordinateRegion(center: theCoord, span: span)

        mapaView.setRegion(region, animated: true)
        mapaLoaded = true;

    }
4

4 回答 4

6

这是 Swift 的许多错误之一，其中编译器由于您的应用程序中无法处理的特定代码而突然崩溃。

您必须隔离有问题的部分（例如，通过注释掉屏幕的某些部分），一旦再次编译，找到使用不同代码的解决方法。

你的方法loadMapa看起来如何？这是编译器提到的原因。

于 2014-10-01T04:42:11.580 回答
2

当子类化 UIButton 并覆盖这样的选定属性时，我遇到了同样的错误：

class ActionButton: UIButton {

    override var selected: Bool = true {
        didSet {
            updateBackgroundColor()
        }
    }
}

解决方案是从覆盖语句中删除“= true”：

class ActionButton: UIButton {

    override var selected: Bool {
        didSet {
            updateBackgroundColor()
        }
    }
}

我只是在猜测，但我会仔细检查你是否以正确的方式实现了你的委托方法......所有感叹号都正确给出......'！' 在 MKAnnotationView 结束时！似乎有点可疑。

于 2014-10-24T11:00:44.507 回答
1

我已经搜索了为什么错误：“由于信号而导致命令失败：分段错误：11”导致我的应用程序出现问题......我的应用程序依赖于 Parse。我发现 Parse 对方法进行了更改：

        query.findObjectsInBackgroundWithBlock({ (objects : [AnyObject]?, error : NSError?) -> Void in

至

        query.findObjectsInBackgroundWithBlock({ (objects : [**PFObject**]?, error : NSError?) -> Void in

我已经改变了这一切，现在它可以工作了。希望这对使用 Parse 的人有所帮助。干杯

于 2015-09-18T21:04:28.653 回答
0

不是一个具体的答案，但我想添加另一个可能导致此错误的原因（因为它仍然很常见）。

我的程序有这样的代码：

if (myArray.count > 0) && (.Foo != myArray.last) {
    // Do something
}

就我而言.Foo，它属于我实现的枚举Equatable，但是，由于某种原因，Swift 编译器没有将我的比较突出显示myArray.last为错误（与可选相比，非可选）并产生了分段错误。

在我的情况下，修复只是简单地使用myArray.last!，因为myArray.count > 0确保这将始终成功（必须至少是一个元素）。

像往常一样，一旦您知道错误是什么，请务必将其传递给bug report.apple.com！

于 2015-02-12T16:27:17.677 回答