Unity code sets Android signature path, configures signature password, static startup screen

---

foreword

A special requirement requires configuring Android packaging related settings in the code.

---

1. Android signature setting relative path

This is relatively simple, find ProjectSettings.asset in the ProjectSettings file, one of the configurations is

 AndroidKeystoreName: "E:/XXX/Moudle/Assets/Plugins/XXX.keystore"

modify it to

  AndroidKeystoreName: ./Assets/Plugins/XXX.keystore

Check the settings to see that it has changed

2. Save the signature alias password

https://blog.csdn.net/acmhonor/article/details/94552089
I changed it after reading this post, so I won’t say more, thank you blogger.

3. Automatically set the startup screen

This part is a bit interesting, and it is realized by serializing and reading and writing the configuration in the ProjectSettings.asset file. Maybe everyone can’t use it, so there are relatively few materials. The link below has related usage, but it’s a bit wrong. I modified it.
https://answers.unity.com/questions/1619110/set-androids-static-splash-image-using-api.html

  private static void  ChangeImage()
    {
    
    
        string path = Application.dataPath + "/AllResources/Image/Logo/Start.png";
        if (!File.Exists(path))
        {
    
    
            Debug.Log("文件不存在");
            return;
        }

        Texture2D tex = AssetDatabase.LoadAssetAtPath<Texture2D>("Assets/AllResources/Image/Logo/Start.png");
        const string projectSettings = "ProjectSettings/ProjectSettings.asset";
        UnityEngine.Object obj = AssetDatabase.LoadAllAssetsAtPath(projectSettings)[0];
        SerializedObject psObj = new SerializedObject(obj);

        SerializedProperty androidSplashFileId = psObj.FindProperty("androidSplashScreen");
        Debug.Log(androidSplashFileId); 
        if (androidSplashFileId != null)
        {
    
    
            androidSplashFileId.objectReferenceValue = tex;
        }
        psObj.ApplyModifiedProperties();

        PlayerSettings.Android.splashScreenScale = AndroidSplashScreenScale.ScaleToFill;
    }