Unity Publishing Settings (keystore password) 保存密码

转载自：http://answers.unity3d.com/questions/757834/publishing-settings-keystore-password-not-saving.html

写一个类(PreloadSigningAlias)，放到文件夹下就可以了
代码如下：

 using UnityEngine;
 using UnityEditor;
 using System.IO;

 [InitializeOnLoad]
 public class PreloadSigningAlias
 {
    static PreloadSigningAlias()
    {
        DirectoryInfo dir = Directory.GetParent(Application.dataPath);
        string path = dir.ToString() + @"xx/xx";//自己签名的路径
        if(File.Exists(path)) {
            PlayerSettings.Android.keystoreName = path;
        }
        PlayerSettings.Android.keystorePass = "xxx";
        PlayerSettings.Android.keyaliasName = "xx";     
        PlayerSettings.Android.keyaliasPass = "xxx";
    }
 }