Unity set Android JAVA_HOME

CustomAndroidPreprocessBuild.cs

using System;
using UnityEditor.Build;
using UnityEditor.Build.Reporting;

public class CustomAndroidPreprocessBuild : IPreprocessBuildWithReport
{
    public int callbackOrder => 0;

    public void OnPreprocessBuild(BuildReport report)
    {
        // Win设置环境变量： 略
        // Mac设置bash能用的环境变量： 略
        // Mac设置从应用启动图标启动时也能访问到的环境变量： https://stackoverflow.com/a/26586170/4072786

        var unityJavaHome = Environment.GetEnvironmentVariable("JAVA_HOME");
        var androidJavaHome = Environment.GetEnvironmentVariable("ANDROID_JAVA_HOME");

        Environment.SetEnvironmentVariable("JAVA_HOME", androidJavaHome);

        // TODO android process

        Environment.SetEnvironmentVariable("JAVA_HOME", unityJavaHome);
    }
}