gistfile1.txt

                case MSG_GESTURE_MOTION_DOWN: {
                    int k = 0;
                    while (k < ViewRootImpl.this.mBackupEventList.size()) {
                        try {
                            boolean ishandled = ViewRootImpl.this.mView.dispatchPointerEvent(
                                        (MotionEvent) ViewRootImpl.this.mBackupEventList.get(k));
                            k++;
                        } catch (NullPointerException e) {
                            Log.e(ViewRootImpl.TAG, "mView does not exist, discard points. " + e);
                            break;
                        }
                    }
                } break;
            }