在Android上OpenGl 实现逐帧动画的播放效果的Java实现代码

以下是一个简单的Java代码示例，演示如何在Android上使用OpenGL实现逐帧动画的播放效果：

public class MyGLRenderer implements GLSurfaceView.Renderer {
    private Context mContext;
    private int[] mTextures;
    private int mCurrentFrame = 0;
    private int mFrameCount;
    private int mFrameWidth;
    private int mFrameHeight;

    public MyGLRenderer(Context context, int frameCount, int frameWidth, int frameHeight) {
        mContext = context;
        mFrameCount = frameCount;
        mFrameWidth = frameWidth;
        mFrameHeight = frameHeight;
        mTextures = new int[frameCount];
    }

    @Override
    public void onSurfaceCreated(GL10 gl, EGLConfig config) {
        // 初始化OpenGL ES
        gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
        gl.glEnable(GL10.GL_BLEND);
        gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);

        // 加载动画帧图像资源
        for (int i = 0; i < mFrameCount; i++) {
            Bitmap bitmap = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.frame_1 + i);
            gl.glGenTextures(1, mTextures, i);
            gl.glBindTexture(GL10.GL_TEXTURE_2D, mTextures[i]);
            GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0);
            bitmap.recycle();
        }
    }

    @Override
    public void onSurfaceChanged(GL10 gl, int width, int height) {
        // 设置视口大小
        gl.glViewport(0, 0, width, height);
        gl.glMatrixMode(GL10.GL_PROJECTION);
        gl.glLoadIdentity();
        GLU.gluOrtho2D(gl, 0, width, 0, height);
        gl.glMatrixMode(GL10.GL_MODELVIEW);
        gl.glLoadIdentity();
    }

    @Override
    public void onDrawFrame(GL10 gl) {
        // 绘制纹理
        gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
        gl.glBindTexture(GL10.GL_TEXTURE_2D, mTextures[mCurrentFrame]);
        float ratio = (float) mFrameWidth / mFrameHeight;
        gl.glPushMatrix();
        gl.glTranslatef((gl.glGetParameter(GL10.GL_VIEWPORT, 0) - mFrameWidth) / 2, (gl.glGetParameter(GL10.GL_VIEWPORT, 1) - mFrameHeight) / 2, 0);
        gl.glScalef(Math.min(gl.glGetParameter(GL10.GL_VIEWPORT, 2) / (float) mFrameWidth, gl.glGetParameter(GL10.GL_VIEWPORT, 3) / (float) mFrameHeight), Math.min(gl.glGetParameter(GL10.GL_VIEWPORT, 2) / (float) mFrameWidth, gl.glGetParameter(GL10.GL_VIEWPORT, 3) / (float) mFrameHeight) * ratio, 1);
        gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
        gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
        float vertices[] = {0, 0, 0, mFrameHeight, mFrameWidth, mFrameHeight, mFrameWidth, 0};
        gl.glVertexPointer(2, GL10.GL_FLOAT, 0, FloatBuffer.wrap(vertices));
        float texCoords[] = {0, 0, 0, 1, 1, 1, 1, 0};
        gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, FloatBuffer.wrap(texCoords));
        gl.glDrawArrays(GL10.GL_TRIANGLE_FAN, 0, 4);
        gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
        gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
        gl.glPopMatrix();

        // 更新当前显示的纹理
        mCurrentFrame = (mCurrentFrame + 1) % mFrameCount;
    }
}

你可以将以上代码添加到你的Android项目中，并根据实际需求进行调整和优化。