接觸android將近一年了，以前學的應用開發，現在自學android遊戲開發，把自己學到的分享出來一下，（這也是我的第一篇部落格），不說廢話了，開始正文：

GLRender類用於圖形的渲染工作，Util類用於glrender中的資料緩衝。

GLRender類：

package com.example.xu.vertexdraw;
public class GLRender implements GLSurfaceView.Renderer {
    public float xrot;
    public float yrot;
    public float zrot;
//定義頂點緩衝
 
private FloatBuffer _vertexsBuffer;
//定義頂點緩衝
private FloatBuffer _vertexsBUffer;
//定義索引緩衝
private ByteBuffer _indicesBuffer;
    public void onSurfaceCreated(GL10 gl,EGLConfig config){
//啟用陰影平滑
gl.glShadeModel(GL10.GL_SMOOTH);
//黑色背景
gl.glClearColor(0,0,0,0);
//設定深度快取
gl.glClearDepthf(1.0f);
//啟用深度測試
gl.glEnable(GL10.GL_DEPTH_TEST
 
);
//所做深度測試的內容
gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT,GL10.GL_FASTEST);
//建立頂點資料
float vertexs[] = new float[12];
vertexs[0] = 1.0f;
vertexs[1] = 1.0f;
vertexs[2] = 0.0f;
vertexs[3] = -1.0f;
vertexs[4] = 1.0f;
vertexs[5] = 0.0f;
vertexs[6] = -1.0f;
vertexs[7] = -1.0f;
vertexs[8] = 0.0f;
vertexs[9] = 1.0f;
vertexs[10
 
] = -1.0f;
vertexs[11] = 0.0f;
//建立索引資料
byte indices[] = new byte[6];
indices[0] = 0;
indices[1] = 1;
indices[2] = 2;
indices[3] = 0;
indices[4] = 2;
indices[5] = 3;
//建立頂點緩衝
this._vertexsBuffer = Util.getFloatBuffer(vertexs);
//建立索引緩衝
this._indicesBuffer = Util.getByteBUffer(indices);
}
    public void onDrawFrame(GL10 gl){
        //清除螢幕和深度快取
gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
//重置當前的模型觀察矩陣
gl.glLoadIdentity();
//重置當前的模型觀察矩陣
gl.glLoadIdentity();
//移入螢幕的一段距離
gl.glTranslatef(0.0f,0.0f,-3.0f);
//設定三個方向的旋轉
gl.glRotatef(xrot,1.0f,0.0f,0.0f);
gl.glRotatef(yrot,0.0f,1.0f,0.0f);
gl.glRotatef(zrot,0.0f,0.0f,1.0f);
//允許設定頂點
gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glVertexPointer(3,GL10.GL_FLOAT,0,this._vertexsBuffer);        //索引繪製法
gl.glDrawElements(GL10.GL_TRIANGLES,6,GL10.GL_UNSIGNED_BYTE,this._indicesBuffer);
//取消頂點設定
gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
//結束繪製
gl.glFinish();
}
    public void onSurfaceChanged(GL10 gl,int width,int heigth){
        float ratio = (float) width / heigth;
//設定opengl場景的大小
gl.glViewport(0,0,width,heigth);
//設定投影矩陣
gl.glMatrixMode(GL10.GL_PROJECTION);
//重置投影矩陣
gl.glLoadIdentity();
//設定視口大小
gl.glFrustumf(-ratio,ratio,-1,1,1,10);
//選擇模型觀察矩陣
gl.glMatrixMode(GL10.GL_MODELVIEW);
//重置模型觀察矩陣
gl.glLoadIdentity();
}
}

Util類：

public class Util {
    public static FloatBuffer getFloatBuffer(float[] vertexs) {
        FloatBuffer buffer;
ByteBuffer qbb = ByteBuffer.allocateDirect(vertexs.length * 18);
qbb.order(ByteOrder.nativeOrder());
buffer = qbb.asFloatBuffer();
buffer.put(vertexs);
buffer.position(0);
        return buffer;
}

    public static ByteBuffer getByteBUffer(byte[] indices) {
        ByteBuffer buffer = null;
buffer = ByteBuffer.allocateDirect(indices.length);
buffer.put(indices);
buffer.position(0);
        return buffer;
}
}

還需新建MySurfaceView類用於獲取使用者輸入，實現人機互動。

（求大神勿噴，第一次寫）