unity二次开发 接第三方sdk

我看到过很多unity接sdk的方式，但是主要分为两种

1.以unity工程为主，导入sdk的jar包和修改配置AndroidManifest.xml，这种方式优点就是不脱离unity，但是这样接sdk的资料太少，而且如果sdk过多不方便。

2.我今天主要说第二种方式，导出Android工程在esplise里进行接入并且进行二次开发，因为第二种方式需要对esplise和java有一定程度的了解，对我而言第二种方式更适合长期的投资。今天我就把我这三个月学习经验向大家分享一下。

因为今天这篇文章涉及的不仅仅是unity，大体的东西我就都说一下，如果有疑问的地方可以留言或者自己找资料。

一.要做sdk接入首先要知道，unity是如何与Android通信的，这个知识点网上有很多，我在这里就举一个简单的例子（补充已经这个脚本是要挂到场景内部的）

这里一共两句代码，先解释第一句代码，这句代码无非是找到esplise里com.example.testcommunicate下的PlatformContext类

第二句代码留个悬念，然后再unity内部留出测试接口

二.进行esplise内部接口的实现，也就是unity与Android通信的第二步。说到这里呢，com.example.testcommunicate.PlatformContext就能用上了。

这就是我esplise的目录结构，多余的脚本会后续解释。第一步我们已经确定了Android内部的通信类PlatformContext，我们来实现它内部的通信接口。

通常来说这个PlatformContext我们都定义为抽象类，方便以后开发，我先给出抽象类，再给出实现的子类

package com.example.testcommunicate;import org.json.JSONObject;import android.app.Activity;import android.content.Context;import android.util.Log;import com.unity3d.player.UnityPlayer;public abstract class PlatformContext {protected static PlatformContext m_instance;private Context m_ctx;private Activity m_activity;protected String m_target;protected JSONObject m_config;protected String m_tag;protected String m_userId;protected String m_nickname;protected String m_channelUserInfo;protected String m_channelSid;protected String m_orderUrl;protected String m_devilerUrl;protected String m_imei;protected String m_pkgid;protected String m_packageName;protected String m_version;protected String m_serverId;protected String m_serverName;protected abstract void initContext(String config);public abstract boolean destroyContext();public abstract void login(int nParam);public abstract void logout();public abstract void switchAccount();public abstract boolean isLogin();protected abstract String getSession();protected abstract String getGameId();public static PlatformContext getInstance(){return m_instance;}protected void setGameObject(String name) {m_target = name;}protected PlatformContext(String tag) {m_instance = this;m_activity = UnityPlayer.currentActivity;m_ctx = m_activity.getApplicationContext();m_pkgid = m_activity.getClass().getPackage().getName();m_packageName = m_activity.getPackageName();try {m_version = m_activity.getPackageManager().getPackageInfo(m_packageName, 0).versionName;} catch (Exception e) {m_version = "0";}}protected PlatformContext(String target,String tag) {m_instance = this;m_activity = UnityPlayer.currentActivity;m_ctx = m_activity.getApplicationContext();m_pkgid = m_activity.getClass().getPackage().getName();m_packageName = m_activity.getPackageName();try {m_version = m_activity.getPackageManager().getPackageInfo(m_packageName, 0).versionName;} catch (Exception e) {m_version = "0";}}}

package com.example.testcommunicate;import java.util.HashMap;import android.util.Log;import android.content.Intent;import android.content.pm.ActivityInfo;import android.os.Handler;import android.os.Looper;import com.unity3d.player.UnityPlayer;public class TSPlatformContext extends PlatformContext {int m_cpId;int m_gameId;boolean m_debug = false;boolean m_blogin;boolean m_enableGameAccount = false;String m_gameAccountTitle;String m_channalID;String m_uid;String m_name;String Timestamp;String m_token;//String m_channelID;String rsa = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArSULL4MRYI8wxLDLCWxQRXiEx61E7Dm9cbMHHY2l3lb3Axi0VEuLI/9Ee0zYF2/jXBfnE1mZAd2pnMHcyOT5yS76uqDQrMRRPUYrTV1zzRPK7pBbGwKdpWWlEwYXEdBvZrQaJQdF9NPBx/KluKs6s0wV2OhU+sRGqW2ohlfNvaL0ji5OOsBeG2d6uRkY7Zh+ZWNJuD/W3zMOb6d13FDsfKPtXpxe6lhZewH/jJz9w925z2HBG9hfjs7gOeIzsCJZS3kYEpeFTWPIGY4FFhRd3Vr3xwhPqyf945+cn43S+o0ZhTabVRwuG5Apk0gWMc8BimnL82GBEz0HzUOyvgydEwIDAQAB";String roleId = null;String roleName = null;String roleLevel;String zoneId ;String zoneName = null;String balance ;String vip ;String partyName = null;public static int tempTypeGame = 1;public TSPlatformContext(String target) {super(target,"KZ"); m_blogin = false;}public static void Init(){if(m_instance==null) {TSPlatformContext ucctx = new TSPlatformContext("");ucctx.initPlatform();}return;}protected void initPlatform() {// TODO Auto-generated method stub Log.d("", "initPlatform...");}public void initContext(String config) { Log.d("", "initContext config:"+config);UnityPlayer.UnitySendMessage("PlatformHelper", "AtoUnity", "sucess");//这个其实就是Android向unity内的反向通信，"PlatformHelper"是unity场景内挂着AndroidTestCommunication的物体名称}@Overridepublic boolean destroyContext() {// TODO Auto-generated method stub        Log.d("", "destroyContext...");return false;}@Overridepublic void login(int nParam) { Log.d("", "login...");}@Overridepublic void logout() { Log.d("", "logout...");}@Overridepublic void switchAccount() { Log.d("", "switchAccount...");}@Overridepublic boolean isLogin() {// TODO Auto-generated method stubreturn false;}@Overrideprotected String getSession() {// TODO Auto-generated method stubreturn  "";}@Overrideprotected String getGameId() {// TODO Auto-generated method stubreturn "";}   }

unity内部的完成demo代码

using UnityEngine;using System.Collections;public class AndroidTestCommunication : MonoBehaviour{    AndroidJavaObject m_sdkobj;// Use this for initialization    AndroidJavaObject klass;void Awake ()    {#if NORMAL#else        // Debug.LogError("AndroidJavaObject Init");         klass = new AndroidJavaClass("com.example.testcommunicate.PlatformContext");        m_sdkobj = klass.CallStatic<AndroidJavaObject>("getInstance");//这句就是通过一个简单的单例获取Android内部的PlatformContext类的实例对象       /// m_sdkobj.Call("setGameObject", name);#endif        //Debug.LogError(klass);        //Debug.LogError(m_sdkobj);    }

//这里我添加了开机动画很简单的    IEnumerator Start()    {        Debug.LogError("Start");        if (Handheld.PlayFullScreenMovie("Heroes_Kingdom_ingame1280.mp4", Color.black, FullScreenMovieControlMode.CancelOnInput))            yield return new WaitForEndOfFrame();        yield break;    }// Update is called once per framevoid Update () {}    void OnGUI()    {        if (GUILayout.Button("button1",GUILayout.Height(Screen.height*0.4f),GUILayout.Width(Screen.height*0.4f)))        {            Debug.LogError("onclick button1");            m_sdkobj.Call("initContext", "success");        }    }    public void AtoUnity(string succes)    {        Debug.LogError("come back:" + succes);    }}

这里也看到了，我只是实现了一个初始化通信接口initContext，其实如果接第三方sdk，登录支付接口实现的都是一个道理。

上面把通信说了，可是是怎么个二次开发的呢，其实很简单首先导出unity的esplise包，3个地方

导出后的工程文件夹，将assert下的bin文件和文件拷到新建的Android工程assert文件夹中。还有lib文件夹下的.so文件也同样拷到Android工程的lib文件夹下

然后就是进行esplise内Android工程的修改了，第一步Android工程内lib文件夹下引用

下面这个红色的代码是现成的，在unity里有直接拷贝过来就可以了

最后一步就是进行的修改，我这里给一个通用版，需要修改的地方会标注

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.testcommunicate"//这里也是包名对应    android:versionCode="1"    android:versionName="1.0" >    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name" >       <activity android:label="@string/app_name" android:screenOrientation="sensorLandscape" android:launchMode="singleTask" android:configChanges="mcc|mnc|locale|touchscreen|keyboard|keyboardHidden|navigation|orientation|screenLayout|uiMode|screenSize|smallestScreenSize|fontScale" android:name="com.example.testcommunicate.UnityPlayerNativeActivity">//这里要和你自己的包名对应上      <intent-filter>        <action android:name="android.intent.action.MAIN" />        <category android:name="android.intent.category.LAUNCHER" />        <category android:name="android.intent.category.LEANBACK_LAUNCHER" />      </intent-filter>      <meta-data android:name="unityplayer.UnityActivity" android:value="true" />      <meta-data android:name="unityplayer.ForwardNativeEventsToDalvik" android:value="false" />    </activity>               </application>  <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="19" />  <uses-feature android:glEsVersion="0x00020000" />  <uses-permission android:name="android.permission.READ_PHONE_STATE" />  <uses-feature android:name="android.hardware.sensor.accelerometer" />  <uses-feature android:name="android.hardware.touchscreen" android:required="false" />  <uses-feature android:name="android.hardware.touchscreen.multitouch" android:required="false" />  <uses-feature android:name="android.hardware.touchscreen.multitouch.distinct" android:required="false" />  <uses-permission android:name="android.permission.WAKE_LOCK" />  <uses-permission android:name="android.permission.INTERNET" />  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />  <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />  <uses-permission android:name="android.permission.GET_TASKS" />  <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />  <uses-permission android:name="android.permission.SEND_SMS" />  <uses-permission android:name="android.permission.VIBRATE" />  <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /></manifest>

需要改的地方都好了，剩下就是出包测试了。刚开始写文章，感觉思路优点混乱，可以随时纠正一起学习。