接sdk_【unity游戏开发】SDK学习(1)-C#与jar交互

package com.Aver3.Snake;
 
import com.unity3d.player.UnityPlayerActivity;
import com.unity3d.player.UnityPlayer;
import android.os.Bundle;
 
public class MainActivity extends UnityPlayerActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // setContentView(R.layout.activity_main); 注释掉 不显示View
    }
 
    //供U3D调用的方法
    public int Add(int x,int y){
        return x + y;
    }
 
//    Android调用Unity的方法
    public void JavaCallUnityFunc(){
        String str="Android Call Unity.";
        String UnityClass="Canvas";
        String UnityMethod="ForJavaCallFunc";
        //参数1：unity脚本挂载的gameobject   参数2：方法名   参数3：要传递的参数
        UnityPlayer.UnitySendMessage(UnityClass, UnityMethod, str);
    }
}

//apply plugin: 'com.android.application'
apply plugin: 'com.android.library' //说明是Library模块
 
android {
    compileSdkVersion 28
    defaultConfig {
//      applicationId "com.Aver3.Snake"
        minSdkVersion 17
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        multiDexEnabled true
    }
    buildTypes {
        release {
            //混淆
            minifyEnabled false
            //加载默认混淆配置文件
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    lintOptions {
        abortOnError false
    }
 
    dexOptions {
        javaMaxHeapSize "4g"
    }
}
 
//删除build.gradle里的依赖     
//这里要删的话，导出前删，否者会XML配置会报错
dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation files('libs/classes.jar')
}
 
task makeJar(type: Copy) {
    delete 'build/libs/mysdk.jar'                           //删除旧的Jar包
    from('build/intermediates/intermediate-jars/release')   //从该地址复制
    into('build/libs/')                                     //复制到该地址
    include('classes.jar')                                  //包含文件
    rename ('classes.jar', 'mysdk.jar')                     //重命名
}
 
makeJar.dependsOn(build)

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.Aver3.Snake"
    android:installLocation="auto">
 
    <application
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity"
                  android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.Aver3.Snake">
 
    <application
        android:theme="@style/UnityThemeSelector"
        android:icon="@drawable/app_icon"
        android:label="@string/app_name">
        android:theme="@style/UnityThemeSelector">
        <activity android:name="com.Aver3.Snake.MainActivity"
                  android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <meta-data android:name="unityplayer.UnityActivity" android:value="true" />
        </activity>
    </application>
</manifest>

  AndroidJavaClass jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
  AndroidJavaObject jo = jc.GetStatic<AndroidJavaObject>("currentActivity");
  string message = "this is my title";
  string body = "this is my content";
  jo.Call("ShareText", message, body);

//参数1：unity脚本挂载的gameobject   参数2：方法名   参数3：要传递的参数
UnityPlayer.UnitySendMessage("headImage","AndroidSaveHeadImageOver","headImage.png");

using UnityEngine;
using UnityEngine.UI;
 
public class Test : MonoBehaviour
{
    public Button btn1;
    public Button btn2;
    public Text logText;
    private void Start()
    {
        btn1.onClick.AddListener(TestCallJavaFunc);
        btn2.onClick.AddListener(TestFromJavaCallUnityFunc);
 
        logText.text = "Start";
    }
 
    private const string JAVA_CLASS_Name = "com.unity3d.player.UnityPlayer";
    private void CallJavaFunc(string javaFuncName, params object[] args)
    {
        try
        {
            //获取到AndroidJavaClass，至于这里为什么调用这个类，我也不是很清楚
            //获取unity的Java类,只能调用静态方法，获取静态属性
            using(AndroidJavaClass jc = new AndroidJavaClass(JAVA_CLASS_Name))
            {
                //获取到Activity
                using(AndroidJavaObject jo = jc.GetStatic<AndroidJavaObject>("currentActivity"))
                {
                    //调用Java方法
                    jo.Call(javaFuncName, args);
                }
            }
        }
        catch(System.Exception ex)
        {
            Debug.Log("callSdk error:" + ex.Message);
        }
    }
 
    void TestCallJavaFunc()
    {
        try
        {
            AndroidJavaClass javaVM = new AndroidJavaClass(JAVA_CLASS_Name);
            AndroidJavaObject currentActivity = javaVM.GetStatic<AndroidJavaObject>("currentActivity");
            int result = currentActivity.Call<int>("Add", 1999, 1);
            logText.text = "Call Java Func :Add ,rusult:" + result.ToString();
        }
        catch(System.Exception ex)
        {
            Debug.LogError("Call Sdk Error:" + ex.Message);
            logText.text = ex.Message;
            throw;
        }
    }
 
    public void ForJavaCallFunc(string str)
    {
        logText.text = str;
    }
 
    public void TestFromJavaCallUnityFunc()
    {
        CallJavaFunc("JavaCallUnityFunc");
    }
}