Why does not copy database.db from bundle to document directory in swift 3? [duplicate]

问题

I try to copy my db from bundle path to destination path(document directory) and use this code in iOS8 , Swift3 and Xcode8 final:

    let bundlePath = Bundle.main.path(forResource: "cry", ofType: ".db")
    print(bundlePath, "\n") //prints the correct path
    let destPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first!
    let fileManager = FileManager.default
    let fullDestPath = URL(fileURLWithPath: destPath).appendingPathComponent("cry.db")
    let fullDestPathString = String(describing: fullDestPath)
    if fileManager.fileExists(atPath: fullDestPathString){
        print("Database file is exist")
        print(fileManager.fileExists(atPath: bundlePath!))
    }else{
        do{
            try fileManager.copyItem(atPath: bundlePath!, toPath: fullDestPathString)
        }catch{
            print("\n")
            print(error)
        }
    }

But show me this error:

{Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}

i have checked atPath and toPath that's right but i don't have any idea...
Please help me
Thank you

回答1:

Solved

    let bundlePath = Bundle.main.path(forResource: "cry", ofType: ".db")
    let destPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first!
    let fileManager = FileManager.default
    let fullDestPath = URL(fileURLWithPath: destPath).appendingPathComponent("cry.db")
    if fileManager.fileExists(atPath: fullDestPath.path){
        print("Database file is exist")
        print(fileManager.fileExists(atPath: bundlePath!))
    }else{
        do{
            try fileManager.copyItem(atPath: bundlePath!, toPath: fullDestPath.path)
        }catch{
            print("\n",error)
        }
    }

I added .path to my destination address and it works now.

来源：https://stackoverflow.com/questions/39743397/why-does-not-copy-database-db-from-bundle-to-document-directory-in-swift-3

标签

ios

database

swift

copy