Swift 斯威夫特2中的反思
我有一个类用户:Swift 斯威夫特2中的反思,swift,reflection,swift2,Swift,Reflection,Swift2,我有一个类用户: import UIKit import ObjectMapper class User: NSObject, CustomStringConvertible, Mappable { var FirstName: NSString! ; var LastName: NSString! ; required init?(_ map: Map){ } func mapping(map: Map) { First
import UIKit
import ObjectMapper
class User: NSObject, CustomStringConvertible, Mappable {
var FirstName: NSString! ;
var LastName: NSString! ;
required init?(_ map: Map){
}
func mapping(map: Map) {
FirstName <- map["FirstName"]
LastName <- map["LastName"]
}
override var description:String {
var s:String=""
//USE REFLECTION TO GET NAME AND VALUE OF DATA MEMBERS
for var index=1; index<reflect(self).count; ++index {
s += (reflect(self)[index].0 + ": "+reflect(self)[index].1.summary+"\t")
}
return s
}
}
导入UIKit
导入对象映射器
类用户:NSObject、CustomStringConvertible、可映射{
var FirstName:NSString;
var LastName:NSString;
必需的初始化(umap:map){
}
func映射(映射:映射){
FirstName您可以访问反射属性“label”名称、值和类型,如下所示:
let mirror = Mirror(reflecting: SomeObject)
var dictionary = [String: Any]()
for child in mirror.children {
guard let key = child.label else { continue }
let value: Any = child.value
dictionary[key] = value
switch value {
case is Int: print("integer = \(anyValue)")
case is String: print("string = \(anyValue)")
default: print("other type = \(anyValue)")
}
switch value {
case let i as Int: print("• integer = \(i)")
case let s as String: print("• string = \(s)")
default: print("• other type = \(anyValue)")
}
if let i = value as? Int {
print("•• integer = \(i)")
}
}
注意:根据后续问题,显示了确定反射值类型的三种方法。我有一个解决方案,可以找到从NSObject
继承的任何类的属性名称和类型
我写了一个很长的解释,我的项目是可用的
简而言之,您可以这样做(但请真正查看Github的代码):
公共类func getTypesOfProperties(包括类clazz:NSObject.Type)->字典{
变量计数=UInt32()
guard let properties=class_copyPropertyList(clazz,&count)else{return nil}
变量类型:Dictionary=[:]
对于0中的i.。这是您要查找的吗:?您的.childrend中的每个元素都将有一个.label和.value。如果您想要获取类型,那么您可以获取.value.dynamicType。有关详细信息,请参阅另一个提示:在进入循环之前应调用reflect一次。然后在循环中使用该变量。每次执行reflect(self)时将创建对象的快照。理论上,对象甚至可能在同一时间发生更改,从而产生不同的结果。
public class func getTypesOfProperties(inClass clazz: NSObject.Type) -> Dictionary<String, Any>? {
var count = UInt32()
guard let properties = class_copyPropertyList(clazz, &count) else { return nil }
var types: Dictionary<String, Any> = [:]
for i in 0..<Int(count) {
guard let property: objc_property_t = properties[i], let name = getNameOf(property: property) else { continue }
let type = getTypeOf(property: property)
types[name] = type
}
free(properties)
return types
}