【Android】ExpandableListView的ContextMenu使用

在給ExpandableListView添加ContextMenu時，有時須要區分是group觸發的長按仍是child出發的長按，經過onCreateContextMenu的ContextMenuInfo參數能夠具體判斷出，具體代碼：

public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo menuInfo) {
                ExpandableListContextMenuInfo adapterContextMenuInfo = (ExpandableListContextMenuInfo) menuInfo;
                View targetView = adapterContextMenuInfo.targetView;
                Object obj = targetView.getTag();

                // group的長按事件時
                if (obj != null && Constants.GROUP_VIEW.equals(obj.toString())) {
                    menu.add(0, 0, 0, "delete");
                }
            }