Show Unity Scene as Sub View in android studio

Question

I'm a little confused by showing 3D models and graphics in Android studio projects.

I worked a lot with Rajawali , which is the Android OpenGL ES 2.0 / 3.0 Engine.

Thanks to Rajawali, I was able to display 3D models, perform simple animations, and move the camera around.

Now I would like to perform more and more complex movements and animations and, possibly, create custom materials and textures, but the Rajawali wiki is very outdated, and this library has some limitations (in my opinion).

So now I'm wondering if there is a way to create a scene or something in Unity3D, for example, an animated representation of a 3D model that I can rotate with my finger and then turn it into an Android Java class or CustomView.

Thank.

EDIT:

Here is what I got so far:

This is the main screen of my Android Studio APP . In Backgroud, I have a 3D model “loaded” with Rajawali.

How to get the same result using Unity?

Answer 1

What you are looking for is displaying Unity Scene as a subtitle.

Something like below:

This is described here on the Unity forum. And the code for loading the Unity scene:

package com.unity3d.viewexample;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.LinearLayout.LayoutParams;

import com.unity3d.player.UnityPlayer;


public class JavaCubeViewActivity extends Activity {
    private UnityPlayer m_UnityPlayer;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Create the UnityPlayer
        m_UnityPlayer = new UnityPlayer(this);
        int glesMode = m_UnityPlayer.getSettings().getInt("gles_mode", 1);
        boolean trueColor8888 = false;
        m_UnityPlayer.init(glesMode, trueColor8888);

        setContentView(R.layout.main);

        // Add the Unity view
        FrameLayout layout = (FrameLayout) findViewById(R.id.frameLayout2);    
        LayoutParams lp = new LayoutParams (LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
        layout.addView(m_UnityPlayer.getView(), 0, lp);
    }
}

You can export the Unity project to Android Android, then use this code above or you can write this Java code and then compile it as a jar plugin and make Unity load it by changing Android Manifest to Unity. Both methods should work.

, # Unity Java UnityPlayer.SendMessage.

:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:installLocation="preferExternal" package="com.unity3d.unity" android:versionName="1.0" android:versionCode="1">
  <supports-screens android:smallScreens="true" android:normalScreens="true" android:largeScreens="true" android:xlargeScreens="true" android:anyDensity="true" />
  <application android:icon="@drawable/app_icon" android:label="@string/app_name" android:debuggable="false">
    <activity android:name="com.unity3d.player.UnityPlayerProxyActivity" android:label="@string/app_name" android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen" android:screenOrientation="portrait">
      <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
      </intent-filter>
    </activity>
    <activity android:name="com.unity3d.player.UnityPlayerActivity" android:label="@string/app_name" android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen" android:screenOrientation="portrait">
    </activity>
    <activity android:name="com.unity3d.player.UnityPlayerNativeActivity" android:label="@string/app_name" android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen" android:screenOrientation="portrait">
      <meta-data android:name="android.app.lib_name" android:value="unity" />
      <meta-data android:name="unityplayer.ForwardNativeEventsToDalvik" android:value="false" />
    </activity>
    <activity android:name="com.unity3d.player.VideoPlayer" android:label="@string/app_name" android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen" android:screenOrientation="portrait">
    </activity>
  </application>
  <uses-feature android:glEsVersion="0x00020000" />
  <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="15" />
</manifest>

Unity Java,

UnityPlayer.UnitySendMessage("GameObjectName", "MethodName", "parameter to send");

, Android Studio .