Androidの行の下のアイコンを非表示にするには

Question

行の白い背景の下でアイコンを非表示にするにはどうすればよいですか？以下から

は方法の私の実装です：

は

@Override 
     public void onChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive) { 
      Paint p = new Paint(); 
      Bitmap icon; 
      if(actionState == ItemTouchHelper.ACTION_STATE_SWIPE){ 

       View itemView = viewHolder.itemView; 
       float height = (float) itemView.getBottom() - (float) itemView.getTop(); 
       float width = height/3; 

       if(dX > 0){ 
        p.setColor(Color.parseColor("#125688")); 
        RectF background = new RectF((float) itemView.getLeft(), (float) itemView.getTop(), dX,(float) itemView.getBottom()); 
        c.drawRect(background,p); 
        icon = drawableToBitmap(getResources().getDrawable(R.drawable.ic_delete_black)); 
        RectF icon_dest = new RectF((float) itemView.getLeft() + width ,(float) itemView.getTop() + width,(float) itemView.getLeft()+ 2*width,(float)itemView.getBottom() - width); 
        c.drawBitmap(icon,null,icon_dest,p); 
       } 
      } 

      super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive); 
     } 
    }; 
    ItemTouchHelper itemTouchHelper = new ItemTouchHelper(simpleItemTouchCallback); 
    itemTouchHelper.attachToRecyclerView(recyclerView); 
} 

sample

Answer 1

View.Visibility = viewstates.Invisible それはuが問題解決に役立つかどうかわかりません。