OPENGL ES不工作：no当前上下文

Question

我尝试了《Android版OpenGL ES2》一书中所示的程序，但它不起作用！！

我在Odroid E、三星s3、三星y、三星star中测试过！！

the gl version suported returns 2, but i get
11-22 15:09:45.804: E/oGl-es v(9047): 2.0:131072
11-22 15:09:45.804: E/libEGL(9047): call to OpenGL ES API with no current context     (logged once per thread)
11-22 15:09:45.804: E/unable to(9047): createShader
11-22 15:09:45.804: E/libEGL(9047): call to OpenGL ES API with no current context (logged once per thread)
11-22 15:09:45.804: E/unable to(9047): createShader
11-22 15:09:45.804: E/libEGL(9047): call to OpenGL ES API with no current context (logged once per thread)
11-22 15:09:45.804: E/Error creating(9047): GL programObject
11-22 15:09:45.812: E/render(9047): set
11-22 15:09:46.062: E/Results of validating program:(9047): 0
11-22 15:09:46.062: E/Results of validating program:(9047): Log:

下面是我的代码

public class Main_OGLT1 extends Activity {

    MySurface mGLSurfaceView;
private boolean renderSet;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mGLSurfaceView = new MySurface(this);//(this); //instantiation

        ActivityManager actMan = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
        ConfigurationInfo mConfigInfo = actMan.getDeviceConfigurationInfo();
        boolean isES2Compat = (mConfigInfo.reqGlEsVersion >= 0x20000);
        Log.e("oGl-es v",mConfigInfo.getGlEsVersion()+":"+ mConfigInfo.reqGlEsVersion);
        if(isES2Compat){


            renderSet = true;
            Log.e("render","set");

        }


    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main__oglt1, menu);
        return true;
    }

    @Override
    protected void onResume()
    {
        // The activity must call the GL surface view's onResume() on activity onResume().
        super.onResume();
        mGLSurfaceView.onResume();
    }

    @Override
    protected void onPause()
    {
        // The activity must call the GL surface view's onPause() on activity onPause().
        super.onPause();
        mGLSurfaceView.onPause();
    }

}

MySurface类：

    public class MySurface extends GLSurfaceView{

    public MySurface(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
        setEGLContextClientVersion(2);
        setRenderer(new MyTestRenderer(getContext()));
    }

 }

Answer 1

问题在于glSurfaceView，因为它不在OpenGL线程上运行。glSurfaceView应该在Android的主线程上。

在这里您可以找到有关它的其他信息：

没有当前上下文的opengl es api

Android中的OpenGL ES 2.0上下文

希望这有帮助。