Android example source code file (GLJNIView.java)

This example Android source code file (GLJNIView.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

android, attributeset, content, eglconfig, gljniview, glsurfaceview, keyevent, override, renderer, string, tag, ui, util, utilities, utils, view

The GLJNIView.java Android example source code

/*
 * Copyright (C) 2009 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.gljni;
/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


import android.content.Context;
import android.opengl.GLSurfaceView;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;

import javax.microedition.khronos.egl.EGL10;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;
/**
 * An implementation of SurfaceView that uses the dedicated surface for
 * displaying an OpenGL animation.  This allows the animation to run in a
 * separate thread, without requiring that it be driven by the update mechanism
 * of the view hierarchy.
 *
 * The application-specific rendering code is delegated to a GLView.Renderer
 * instance.
 */
class GLJNIView extends GLSurfaceView {
    GLJNIView(Context context) {
        super(context);
        init();
    }

    public GLJNIView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    private void init() {
        setRenderer(new Renderer());
    }

    private class Renderer implements GLSurfaceView.Renderer {
        private static final String TAG = "Renderer";
        public void onDrawFrame(GL10 gl) {
            GLJNILib.step();
        }

        public void onSurfaceChanged(GL10 gl, int width, int height) {
            GLJNILib.init(width, height);
        }

        public void onSurfaceCreated(GL10 gl, EGLConfig config) {
            // Do nothing.
        }
    }
    
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        GLJNILib.changeBackground();
        return true;
    }
}