Error when creating a new Android Project

Troubleshooting android
1

Today I tried to make an Android Project in the JMonkeyEngine for the first time. So I went to New Project → Android → Android Project an created a new one. The problem was that there was already an exception in the main class.



[java]package my.android.testapp2;



import android.R;

import android.app.Activity;

import android.os.Bundle;



public class MainActivity extends Activity

{

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

}

}[/java]



The problem was that it couldn’t find R.layout.main although it existed and was in the R.java file of the project. So I was really wondering why it wasn’t working because I didn’t even change anything. After some time I noticed that the import was incorrect.



So I replaced import android.R; through import my.android.testapp2.R or just deleted that line and it worked without any problems.



My question did somebody else have this issue and is this bug known?

2

Read the manual about android, you do not need to create an android project for that.

3

I already tried to create a new JmonkeyProject and enable Android Deployment but for some reason then I can only select “Android Device” and not “Android Emulator” in the project configuration and I would really like to run the project in my Android emulator.



Also is there any tutorial or wiki where I can find information about how to write programms for Android using the JMonkeyEngine because the only thing I found was the link how to set up and start in Android.

4
@hyrrokkin said:
I already tried to create a new JmonkeyProject and enable Android Deployment but for some reason then I can only select "Android Device" and not "Android Emulator" in the project configuration and I would really like to run the project in my Android emulator.


You can't. Android emulator does not support Opengl ES 2.0. You have to test on a device.


@hyrrokkin said:
Also is there any tutorial or wiki where I can find information about how to write programms for Android using the JMonkeyEngine because the only thing I found was the link how to set up and start in Android.

there is no more doc about android, because all the other doc also apply for desktop.
You write a program with JME, and then it's deployed on android...
1 Like
5
@nehon said:
You can't. Android emulator does not support Opengl ES 2.0. You have to test on a device.

Actually that might work (in the next release) but it would be the same, you'd just start the emulator instead of connecting a phone and then select "Android Device" for both emulator or phone.
6

@nehon @norman



OpenGL ES 2.0 works in some way in the Android emulator now. See this thread:

http://hub.jmonkeyengine.org/groups/android/forum/topic/tracer-for-opengl-es/



You have do the following things:

  • Create an AVD with a system image of Android 4.1.x.
  • Set the parameter hw.gpu.enable=yes.



    I have only tested the BasicGame template, so I don’t know if advanced features work too. The refreshing bug is fixed at least.
7

Last time I tried it the gui viewport was not refreshing correctly and fill rate was even worse than on a device…

This emulator is not meant for 3D, they tried but they failed.