Android EditText ScrollingMovementMethod cause Null pointer Exception

Question

In my Edittext scrollView in the scrollview LinearLayout, sometime the edittext throws exception, i dont know why this happen. any one have idea please help me . Thanks on Advance

This is my code:::

            edittext.setOnTouchListener(new ScrollView.OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {

                    try {
                        int action = event.getAction();
                            Log.e("action:",action+"");
                        switch (action) {
                        case MotionEvent.ACTION_DOWN:

                            // Disallow ScrollView to intercept touch events.
                            float iniY = event.getRawY();
                            v.getParent().getParent().getParent()
                                    .requestDisallowInterceptTouchEvent(true);
                            break;

                        case MotionEvent.ACTION_UP:
                            // Allow ScrollView to intercept touch events.
                            v.getParent().getParent()
                                    .requestDisallowInterceptTouchEvent(false);

                            break;
                        }
                    } catch (Exception e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                        Log.e("e", e.getMessage());
                    }
                    return false;
                }
            });

11-08 17:43:39.836: E/InputEventReceiver(10223): Exception dispatching input event. 11-08 17:43:39.836: E/MessageQueue-JNI(10223): Exception in MessageQueue callback: handleReceiveCallback 11-08 17:43:39.851: E/MessageQueue-JNI(10223): java.lang.NullPointerException