android glsurfaceview null pointer exception

Question

Tôi gặp lỗi này. Bất kỳ ý tưởng ?

12-29 22:24:46.087: WARN/dalvikvm(2307): threadid=1: thread exiting with uncaught exception (group=0x4001d800) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307): FATAL EXCEPTION: main 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307): java.lang.NullPointerException 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.opengl.GLSurfaceView.surfaceCreated(GLSurfaceView.java:471) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.SurfaceView.updateWindow(SurfaceView.java:532) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.SurfaceView.dispatchDraw(SurfaceView.java:339) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.ViewGroup.drawChild(ViewGroup.java:1638) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1367) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.View.draw(View.java:6743) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.widget.FrameLayout.draw(FrameLayout.java:352) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.ViewGroup.drawChild(ViewGroup.java:1640) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1367) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.ViewGroup.drawChild(ViewGroup.java:1638) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1367) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.View.draw(View.java:6743) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.widget.FrameLayout.draw(FrameLayout.java:352) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1842) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.ViewRoot.draw(ViewRoot.java:1407) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.ViewRoot.performTraversals(ViewRoot.java:1163) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.view.ViewRoot.handleMessage(ViewRoot.java:1727) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.os.Handler.dispatchMessage(Handler.java:99) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.os.Looper.loop(Looper.java:123) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at android.app.ActivityThread.main(ActivityThread.java:4627) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at java.lang.reflect.Method.invokeNative(Native Method) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at java.lang.reflect.Method.invoke(Method.java:521) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
12-29 22:24:46.147: ERROR/AndroidRuntime(2307):  at dalvik.system.NativeStart.main(Native Method) 
12-29 22:24:46.167: WARN/ActivityManager(57): Force finishing activity com.kamil.cakir/.ResimEgici 
12-29 22:24:46.667: WARN/ActivityManager(57): Activity pause timeout for HistoryRecord{43fc5250 com.kamil.cakir/.ResimEgici} 

Answer 1

Tôi đã tìm ra giải pháp. Tôi đã có một lớp GLSurfaceView triển khai giao diện Renderer. Tôi có forgotton để thiết lập renderer vào glview của tôi.

class CustomGl extends GLSurfaceView implements Renderer{ 

    SquareImage image; 
    Context context; 
    float rquad = 0.0f; 
    public CustomGl(Context context) { 
     // TODO Auto-generated constructor stub 
     super(context, null); 


     //Set this as Renderer 
     this.setRenderer(this); //**I ADDED THIS THE PROBLEM SOLVED!** 


     this.context = context; 
     this.image = new SquareImage(); 
     Log.d(VIEW_LOG_TAG, "gl const"); 
    }