我已经在Swift 2中使用过这种方法
var myDict: NSDictionary?
if let path = NSBundle.mainBundle().pathForResource("Config", ofType: "plist") {
myDict = NSDictionary(contentsOfFile: path)
}
但是不知道如何在不使用的情况下阅读Swift3中的plist NSDictionary(contentsOfFile:path)
答案 0 :(得分:23)
原生的Swift方式是使用PropertyListSerialization
if let url = Bundle.main.url(forResource:"Config", withExtension: "plist") {
do {
let data = try Data(contentsOf:url)
let swiftDictionary = try PropertyListSerialization.propertyList(from: data, format: nil) as! [String:Any]
// do something with the dictionary
} catch {
print(error)
}
}
您还可以使用NSDictionary(contentsOf:
类型广告:
if let url = Bundle.main.url(forResource:"Config", withExtension: "plist"),
let myDict = NSDictionary(contentsOf: url) as? [String:Any] {
print(myDict)
}
但你明确地写了:而不使用NSDictionary(contentsOf ...
基本上不使用NSDictionary
而不在Swift中进行投射,你丢弃了重要的类型信息。
答案 1 :(得分:3)
PropertyListDecoder 可用于将plist文件直接解码为对象。
1:示例Plist文件(sample.plist)
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>key1</key>
<string>valua for key1</string>
<key> key2</key>
<string>valua for key1</string>
<key>CustomClass1</key>
<dict>
<key>customClass1_key</key>
<string>customClass1_value</string>
</dict>
<key>CustomClass2</key>
<dict>
<key>customClass2_kek</key>
<string>customClasse_value</string>
</dict>
</dict>
</plist>
2:plist的核心搜索模型
struct PlistConfiguration:Codable {
var key1:String?
var customClass1Obj: CustomClass1?
var customClass2Obj: CustomClass2?
private enum CodingKeys : String, CodingKey {
case key1 = "key1"
case customClass1Obj = "CustomClass1"
case customClass2Obj = "CustomClass2"
}
}
2.1:嵌套模型
struct CustomClass1:Codable {
var customClass1_key:String?
private enum CodingKeys : String, CodingKey {
case customClass1_key = "customClass1_key"
}
}
2.2:嵌套模型
struct CustomClass2:Codable {
var customClass2_key:String?
private enum CodingKeys : String, CodingKey {
case customClass2_key = "customClass2_key"
}
}
3:从主应用程序包中读取Plist
func parseConfig() -> PlistConfiguration {
let url = Bundle.main.url(forResource: "sample", withExtension: "plist")!
let data = try! Data(contentsOf: url)
let decoder = PropertyListDecoder()
return try! decoder.decode(PlistConfiguration.self, from: data)
}