Unity 輸出檔案可在 iOS 檔案 App 存取

 2020.10.02 Unity 輸出檔案在 iOS 上如果跟其他 App 共用，必須在 Build 至 Xcode 專案時編輯Info.plist  按右鍵 Open As => Source Code ，如圖：

在中間加入兩個 Key 並存檔：

<key>UIFileSharingEnabled</key>
<true/>
<key>LSSupportsOpeningDocumentsInPlace</key>
<true/>

這樣在輸出到 iOS 實機上就能用 檔案 App 存取檔案。

另一個自動更改 Info.plist 方法是將以下檔案放在Assets/Editor/下檔名為 BuildPostProcessor.cs。

// filename BuildPostProcessor.cs
// put it in a folder Assets/Editor/
using System.IO;
using UnityEngine;
using UnityEditor;
using UnityEditor.Callbacks;
using UnityEditor.iOS.Xcode;
public class BuildPostProcessor
{
    [PostProcessBuild]
    public static void ChangeXcodePlist(BuildTarget buildTarget, string path)
    {
        if (buildTarget == BuildTarget.iOS)
        {
            string plistPath = path + "/Info.plist";
            PlistDocument plist = new PlistDocument();
            plist.ReadFromFile(plistPath);
            PlistElementDict rootDict = plist.root;
            //Debug.Log(">> Automation, plist ... <<");
            // example of changing a value:
            // rootDict.SetString("CFBundleVersion", "6.6.6");
            // example of adding a boolean key...
            // < key > ITSAppUsesNonExemptEncryption </ key > < false />
            rootDict.SetBoolean("UIFileSharingEnabled", true);
            rootDict.SetBoolean("LSSupportsOpeningDocumentsInPlace", true);
            File.WriteAllText(plistPath, plist.WriteToString());
        }
    }
}