当我尝试保存String时，我看到我的代码失败了！或使用swift keychain的nil或AnyObject
func setSharedPrefrences()
{
if (mainViewController != nil)
{
if (mainViewController.location_text != nil) {
keychainSetSafe(mainViewController.location_text.text, key: StringConstans.keychain_lineName)
}
}
}
func keychainSetSafe(value: String!, key : String)
{
if let nonNullValue = value
{
keychain.set(nonNullValue, forKey: key)
}
}
func getSharedPrefrences()
{
if (mainViewController != nil)
{
let gcmToken = keychain.get(StringConstans.keychain_gcmToken)
if (gcmToken != nil) {
mainViewController.userState.gcmToken = gcmToken
}
}
}
有什么方法可以存储这些类型，以便在app从bg再次移动到fg时恢复？
//
// Keychain helper for iOS/Swift.
//
// https://github.com/marketplacer/keychain-swift
//
// This file was automatically generated by combining multiple Swift source files.
//
// ----------------------------
//
// KeychainSwift.swift
//
// ----------------------------
import Security
import Foundation
/**
A collection of helper functions for saving text and data in the keychain.
*/
public class KeychainSwift