摘要

上篇文章我们介绍了，Android和Unity3d调用的理论基础，那么这一篇我们就开始简单的实战一下。

准备工作

在编写开始，我们先做一下准备工作，这样我们就不会快完工的时候，还要等待下载Android SDK等比较费时的事情。

在你已经拥有了Android的SDK，NDK以及java的环境后，我们需要先在我们的Unity3d将其进行默认话。
Unity3D上部导航栏：Edit–>preference–>External Tools

将下面的对应SDK以及JDK设置为自己的目录。

开动喽

首先我们需要确定我们要操作的目标，这里我就以小女孩为目标。从下图可以看到小女孩的名字为unitychan

接下来我们来看一下其中一个C#脚本是如何进行编写的。

using UnityEngine;using System.Collections;using System.Reflection.Emit;//// ↑↓キーでループアニメーションを切り替えるスクリプト（ランダム切り替え付き）Ver.3// 2014/04/03 N.Kobayashi//// Require these components when using this script[RequireComponent(typeof(Animator))]public class IdleChanger : MonoBehaviour{    private Animator anim;                      // Animator动画参照    private AnimatorStateInfo currentState;     // 当前动画的状态信息    private AnimatorStateInfo previousState;    // 上一个的动画状态信息    public bool _random = false;                // 判定不行    public float _threshold = 0.5f;             public float _interval = 2f;                                                                //private float _seed = 0.0f;                   // ランダム判定用シード    // Use this for initialization    void Start ()    {        // 组件的初始化和状态的初始化        anim = GetComponent ();        currentState = anim.GetCurrentAnimatorStateInfo (0);        previousState = currentState;        // 设置我们的协同        StartCoroutine ("RandomChange");    }    // Update is called once per frame    void  Update ()    {        if (Input.GetKeyDown ("up") || Input.GetButton ("Jump")) {            anim.SetBool ("Next", true);        }                if (Input.GetKeyDown ("down")) {            anim.SetBool ("Back", true);        }        if (anim.GetBool ("Next")) {            currentState = anim.GetCurrentAnimatorStateInfo (0);            if (previousState.nameHash != currentState.nameHash) {                anim.SetBool ("Next", false);                previousState = currentState;                           }        }        if (anim.GetBool ("Back")) {            currentState = anim.GetCurrentAnimatorStateInfo (0);            if (previousState.nameHash != currentState.nameHash) {                anim.SetBool ("Back", false);                previousState = currentState;            }        }    }    void OnGUI()    {                GUI.Box(new Rect(Screen.width - 110 , 10 ,100 ,90), "Change Motion");                if(GUI.Button(new Rect(Screen.width - 100 , 40 ,80, 20), "Next"))                    anim.SetBool ("Next", true);                if(GUI.Button(new Rect(Screen.width - 100 , 70 ,80, 20), "Back"))                    anim.SetBool ("Back", true);    }    IEnumerator RandomChange ()    {        while (true) {            if (_random) {                float _seed = Random.Range (-1f, 1f);                if (_seed <= -_threshold) {                    anim.SetBool ("Back", true);                } else if (_seed >= _threshold) {                    anim.SetBool ("Next", true);                }            }            yield return new WaitForSeconds (_interval);        }    } //用于Unity3d调用的    void Unload()    {        Application.LoadLevel(1);        AndroidJavaClass jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");        AndroidJavaObject jo = jc.GetStatic("currentActivity");        jo.Call("makePauseUnity");    }    //用于Android调用的    void back()    {        anim.SetBool("Back", true);    }    //用于Android调用的    void next()    {        anim.SetBool("Next", true);    }}

在编写好我们unity项目后，就要开始进行build了，但是我们需要的是可以二次开发使用的GoogleAndroidProgect项目，因此我们需要设置一下Build的响应属性。
File–>BuildSettings

按照如图所示进行勾选，之后我们需要配置一下导出的版本参数，点击Player Settings

然后选择目录export编译玩会得到如下eclipse的项目

我们将这个项目导入我们的AS,然后开始改吧改吧。首先我把布局发出来。

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"              android:layout_width="match_parent"              android:layout_height="match_parent"              android:orientation="vertical">    <LinearLayout        android:id="@+id/showMain"        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="1"        android:orientation="vertical"/>    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal">        <Button            android:id="@+id/back"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="back"/>        <Button            android:id="@+id/next"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="next"/>    LinearLayout>LinearLayout>

里面只是一个LinearLayout和两个Button。接下来就开始我们的正经工作了。

package com.Iyunwen.robot;import android.app.Activity;import android.content.res.Configuration;import android.graphics.PixelFormat;import android.os.Bundle;import android.view.KeyEvent;import android.view.MotionEvent;import android.view.View;import android.view.Window;import android.widget.Button;import android.widget.LinearLayout;import android.widget.Toast;import com.unity3d.player.UnityPlayer;public class UnityPlayerActivity extends Activity {    protected UnityPlayer mUnityPlayer; // don't change the name of this variable; referenced from native code    // Setup activity layout    @Override    protected void onCreate(Bundle savedInstanceState) {        requestWindowFeature(Window.FEATURE_NO_TITLE);        super.onCreate(savedInstanceState);        setContentView(R.layout.mainactivity);        getWindow().setFormat(PixelFormat.RGBX_8888); // <--- This makes xperia play happy        LinearLayout                unityVIew = (LinearLayout) findViewById(R.id.showMain);        mUnityPlayer = new UnityPlayer(this);        unityVIew.addView(mUnityPlayer);//        setContentView(mUnityPlayer);        mUnityPlayer.requestFocus();        Button mBack = (Button) findViewById(R.id.back);        Button mNext = (Button) findViewById(R.id.next);        mBack.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                UnityPlayer.UnitySendMessage("unitychan", "back", "");            }        });        mNext.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                UnityPlayer.UnitySendMessage("unitychan", "next", "");            }        });    }    public void makePauseUnity() {        Toast.makeText(this, "unity3D调用Android的方法", Toast.LENGTH_LONG).show();    }    // Quit Unity    @Override    protected void onDestroy() {        mUnityPlayer.quit();        super.onDestroy();    }    // Pause Unity    @Override    protected void onPause() {        super.onPause();        mUnityPlayer.pause();    }    // Resume Unity    @Override    protected void onResume() {        super.onResume();        mUnityPlayer.resume();    }    // This ensures the layout will be correct.    @Override    public void onConfigurationChanged(Configuration newConfig) {        super.onConfigurationChanged(newConfig);        mUnityPlayer.configurationChanged(newConfig);    }    // Notify Unity of the focus change.    @Override    public void onWindowFocusChanged(boolean hasFocus) {        super.onWindowFocusChanged(hasFocus);        mUnityPlayer.windowFocusChanged(hasFocus);    }    // For some reason the multiple keyevent type is not supported by the ndk.    // Force event injection by overriding dispatchKeyEvent().    @Override    public boolean dispatchKeyEvent(KeyEvent event) {        if (event.getAction() == KeyEvent.ACTION_MULTIPLE)            return mUnityPlayer.injectEvent(event);        return super.dispatchKeyEvent(event);    }    // Pass any events not handled by (unfocused) views straight to UnityPlayer    @Override    public boolean onKeyUp(int keyCode, KeyEvent event) {        return mUnityPlayer.injectEvent(event);    }    @Override    public boolean onKeyDown(int keyCode, KeyEvent event) {        return mUnityPlayer.injectEvent(event);    }    @Override    public boolean onTouchEvent(MotionEvent event) {        return mUnityPlayer.injectEvent(event);    }    /*API12*/    public boolean onGenericMotionEvent(MotionEvent event) {        return mUnityPlayer.injectEvent(event);    }}

大工搞成，卡哇伊的妹子在向我们招手哦。
该死的虚拟按键隐藏了我的连个button.

Unity3d和Android的互相调用(二)

摘要

准备工作

开动喽

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