Android Fragment展示Unity場景

unity匯入Android說明

新建專案

首先新建一個unity專案和一個Android專案，對應本demo的UnityScene和AndroidProject

Unity Scene

將unity配置為Android
file --> buildingSettings

選擇Android，點擊switch platform，

構建專案

勾選export project，building，新建UnityScene檔案夾保存，匯出后檔案結構大致如下

引入到Android專案中

以下檔案放到Android 專案中對應位置（我僅匯出arm-v7）

unity-classes.jar, armeabi-v7a放到Android project的app/libs目錄下；assets檔案夾放到app/src/main檔案夾下，與java同級，Android Studio檔案結構如下

gradle中添加（與buildTypes同級）

sourceSets {
    main {
        //unity3D
        jniLibs.srcDirs = ['libs', 'libs-sdk']
    }
}

defaultConfig中添加

   ndk {
        abiFilters "armeabi-v7a"
    }

在local.properties中配置ndk（替換你自己的ndk）

ndk.dir=.../Android/sdk/ndk/xxxx

Android架構中應當看到

Android Project

創建Fragment

創建UnityScene.java

package com.example.androidproject.unity;

import com.unity3d.player.UnityPlayer;

public class UnityScene {
    public static UnityPlayer mUnityPlayer;
    public UnityScene(){

    }

}

創建一個空的Fragment，添加如下代碼

 private View playerView;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        playerView = UnityScene.mUnityPlayer.getView();
        //具體引數 跟自己公司Unity開發人員協商
        //第一個引數是unity那邊的掛載腳本名字
        //第二個引數是 unity提供的方法名
        //第三個引數是 自己要給unity傳的值
//        UnityScene.mUnityPlayer.UnitySendMessage("Main Camera","Id","1");

        return playerView;

    }

改寫MainActivity

在MainAcivity的onCreate中添加

UnityScene.mUnityPlayer = new UnityPlayer(getApplicationContext());
getWindow().setFormat(PixelFormat.RGBX_8888);

if (savedInstanceState == null) {
    getSupportFragmentManager().beginTransaction()
            .setReorderingAllowed(true)
            .add(R.id.fragment_container_view, UnityFragment.class, null)
            .commit();
}

MainAcivity重寫其他方法

@Override
protected void onDestroy() {
    UnityScene.mUnityPlayer.quit();
    super.onDestroy();
}
@Override
protected void onPause() {
    super.onPause();
    UnityScene.mUnityPlayer.pause();
}


@Override
protected void onResume() {
    super.onResume();
    UnityScene.mUnityPlayer.resume();
}


@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    UnityScene.mUnityPlayer.configurationChanged(newConfig);
}


@Override
public void onWindowFocusChanged(boolean hasFocus) {
    super.onWindowFocusChanged(hasFocus);
    UnityScene.mUnityPlayer.windowFocusChanged(hasFocus);
}


@Override
public boolean dispatchKeyEvent(KeyEvent event) {
    if (event.getAction() == KeyEvent.ACTION_MULTIPLE)
        return UnityScene.mUnityPlayer.injectEvent(event);
    return super.dispatchKeyEvent(event);
}


@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
    return UnityScene.mUnityPlayer.injectEvent(event);
}


@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    return UnityScene.mUnityPlayer.injectEvent(event);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
    return UnityScene.mUnityPlayer.injectEvent(event);
}


public boolean onGenericMotionEvent(MotionEvent event) {
    return UnityScene.mUnityPlayer.injectEvent(event);
}

gradle中增加

    implementation "androidx.fragment:fragment:1.2.1"
activity_main.xml如下

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <androidx.fragment.app.FragmentContainerView
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/fragment_container_view"
        android:layout_width="match_parent"
        android:layout_height="500dp"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

string.xml中添加

Game View

完成
運行專案即可看到unity場景嵌套在fragment中

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