[Unity移动端]SDK接入02：使用Android Studio接入

参考链接：

https://blog.csdn.net/qq_38513810/article/details/82664947?depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-2&utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-2

Android Studio下载：

http://www.android-studio.org

unity版本：2018.3.8

Android Studio版本：3.6.2

1. 新建安卓工程，注意最低SDK最好和unity一样

2.新建一个library，注意此处的Package name要和unity的一致

3.在这个library下新建一个Activity

4.将unity安装目录EditorDataPlaybackEnginesAndroidPlayerVariationsmonoReleaseClasses下的classes.jar复制，选中libs目录粘贴，导入这个jar包

5.修改library下的MainActivity.java和AndroidManifest.xml

package com.example.mylibrary;

import android.os.Bundle;
import com.unity3d.player.*;

public class MainActivity extends UnityPlayerActivity {

    private int count = 1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //setContentView(R.layout.activity_main);
    }

    public void UnityCallAndroid() {
        UnityPlayer.UnitySendMessage("Canvas", "AndroidCallUnity", "hello" + count);
        count++;
    }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.mylibrary">

    <application>
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

6.选中library，Build一下，然后将生成的这3个东西放到unity中

7.添加这个脚本到Canvas上，然后打包，注意包名要一致，还有Build System的设置

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class TestSDK : MonoBehaviour
{
    AndroidJavaClass jc;
    AndroidJavaObject jo;
    public Text text;

    // Start is called before the first frame update
    void Start()
    {
        jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
        jo = jc.GetStatic<AndroidJavaObject>("currentActivity");
    }

    public void OnBtnClick()
    {
        jo.Call("UnityCallAndroid");
    }

    public void AndroidCallUnity(string str)
    {
        text.text = str;
    }
}

问题：

1.

解決：

https://blog.csdn.net/burmem/article/details/80447642?depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-2&utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-2

2.Gradle下载速度慢

解决：

https://www.jianshu.com/p/338860fc4921