添加popuwindow的时候报错

[AlvinQiang]

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The specified child already has a parent. You must call removeView() on the child's parent first.

[AlvinQiang]

View doubleList = LayoutInflater.from(this).inflate(R.layout.view_double_listview,null); mainlist = (ListView)doubleList.findViewById(R.id.classify_mainlist); morelist = (ListView)doubleList.findViewById(R.id.classify_morelist); mainAdapter = new ClassifyMainAdapter(this, mainDataList); mainAdapter.setSelectItem(0); mainlist.setAdapter(mainAdapter); mainlist.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView> parent, View view, int position, long id) { initAdapter(Constant.MORELISTTXT[position]); mainAdapter.setSelectItem(position); mainAdapter.notifyDataSetChanged(); } }); mainlist.setChoiceMode(ListView.CHOICE_MODE_SINGLE); initAdapter(Constant.MORELISTTXT[0]); morelist.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView> parent, View view, int position, long id) { moreAdapter.setSelectItem(position); moreAdapter.notifyDataSetChanged(); } }); //init popupViews popupViews.add(doubleList); popupViews.add(doubleList); //内容区域 TextView contentView = new TextView(this); contentView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); contentView.setText("内容显示区域"); contentView.setGravity(Gravity.CENTER); contentView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 20); popupViews.add(contentView);

   //设置Dropmenu
   dropDownMenu.setDropDownMenu(Arrays.asList(headers), popupViews, contentView);

[dongjunkun]

应该是重复调用了setDropDownMenu方法，如果嵌套在ViewPager里面很可能出现

[AlvinQiang]

只用了一次setDropDownMenu啊，没有使用viewpager，下边的内容还是用的一个TextView contentView = new TextView(this); popupMenuViews = new FrameLayout(getContext()); popupMenuViews.setLayoutParams(new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, (int) (DeviceUtils.getScreenSize(getContext()).y*menuHeighPercent))); popupMenuViews.setVisibility(GONE); containerView.addView(popupMenuViews, 2); for (int i = 0; i < popupViews.size(); i++) { popupViews.get(i).setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); popupMenuViews.addView(popupViews.get(i), i); }

说是在 popupMenuViews.addView(popupViews.get(i), i);添加布局的时候出现了错误，让先移除布局

[NeVaDaAAA]

我也出现了这个问题 我的这个下面是个RecyclerView

[AlvinQiang]

我也是用的RecycerView，我又把代码重新写了一遍，之前的错误没了，由于最近在做工程，具体是哪出了问题也没有去深究

[NeVaDaAAA]

@Bind(R.id.lawyer_ll) LinearLayout lawyerLl;

lawyerDrop.setDropDownMenu(Arrays.asList(headers), popupViews, lawyerLl);

上面这句话报错：The specified child already has a parent. You must call removeView() on the child's parent first.

[AlvinQiang]

lawyerLl这个是内容区域吧，

View contentView = LayoutInflater.from(this).inflate(R.layout.view_recyclerview, null);

mDropDownMenu.setDropDownMenu(Arrays.asList(headers), popupViews, contentView);

我是这样写的

[NeVaDaAAA]

你用include把你的recyclerview包起来了是吗？

[AlvinQiang]

没有啊，就是加载一个单独的布局作为内容显示区域

[NeVaDaAAA]

OK 我这边也可以了 谢了 老哥

[AlvinQiang]

^_^

[KillerNemo]

清空View集合再添加元素 //init popupViews popupViews.clear(); popupViews.add(typeView); popupViews.add(priceView); popupViews.add(cityView); 否则执行 case 5: {//退出登录成功 endProgressDialog(); Toast.makeText(MainActivity.this, "退出登录成功", Toast.LENGTH_LONG).show(); bottomNavigation.setCurrentItem(0); viewPager.setAdapter(adapter); } break; 退出登录重新切换到第一个Fragment的时候popupViews会重复添加元素，导致popupViews和headers的元素数目不一致抛出异常 public void setDropDownMenu(@NonNull List<String> tabTexts, @NonNull List<View> popupViews, @NonNull View contentView) { if (tabTexts.size() != popupViews.size()) { throw new IllegalArgumentException("params not match, tabTexts.size() should be equal popupViews.size()"); } 导致APP闪退。

[AlvinQiang]

你是每次回到第一个fragment都要重新加载数据吗

[XuEnhao]

mDropDownMenu.setDropDownMenu(Arrays.asList(headers), popupViews, recyclerView);

The specified child already has a parent. You must call removeView() on the child's parent first.

这个错误有人解决了吗

[qingQingCha]

我这里也出现了这样的错误，我是通过这么修改的： 在setDropDownMenu(){ ... popupMenuViews = new FrameLayout(getContext()); popupMenuViews.setLayoutParams(new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, (int) (DeviceUtils.getScreenSize(getContext()).y*menuHeighPercent))); popupMenuViews.setVisibility(GONE); containerView.addView(popupMenuViews, 2); if (popupMenuViews.getChildCount()>0) popupMenuViews.removeAllViews(); for (int i = 0; i < popupViews.size(); i++) { popupViews.get(i).setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); parentRemove(popupViews.get(i));//关键是这一句，这是我自定义的一个方法 popupMenuViews.addView(popupViews.get(i), i); } ... } public void parentRemove(View v) { ViewGroup parent = (ViewGroup) v.getParent(); if (parent != null) { parent.removeAllViews(); } }