case MotionEvent.ACTION_MOVE:
ClipData data = ClipData.newPlainText("", "");
DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(
view);
shadowBuilder.onProvideShadowMetrics(shadowSize, shadowTouchPoint);
view.startDrag(data, shadowBuilder, view, 0);
TextView sigmaTv = (TextView) view;
selectedSign = sigmaTv.getText().toString();
newSign = true;
break;