SwipeRefreshLayout只能容纳一个直接子代 [英] SwipeRefreshLayout can host only one direct child

问题描述

我在listView中添加了一个拉动刷新"，当列表为空时，我也想添加一个空视图-现在我收到此错误.我该如何进行这项工作?如果我将视图放置在swipeRefresh之外，然后将其添加为emptyView，它将起作用.那我怎么用一个外部xml文件呢?.

I added a "pull to refresh" to my listView, i also wanted to add an empty view when the list is empty - Now i got this error. How can i make this work? if im positioning a view outside of the swipeRefresh and then add it as the emptyView it will work. So how do i so it with an outer xml file .. ?

xml代码:

        <android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipeRefreshLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" >


        <ListView
            android:id="@android:id/list"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:clipToPadding="false"
            android:paddingBottom="@dimen/inbox_vertical_margin" ></ListView>


</android.support.v4.widget.SwipeRefreshLayout>

onCreateView:

onCreateView:

View rootView = inflater.inflate(R.layout.fragment_inbox, container,
        false);

View empty = inflater.inflate(R.layout.empty_message_list, container,
        false);
ListView mListView = (ListView) rootView
        .findViewById(android.R.id.list);
((ViewGroup) mListView.getParent()).addView(empty);
TextView textViewToChange = (TextView) empty
        .findViewById(R.id.welcomeMessage);

textViewToChange.setText("YO "
        + ParseUser.getCurrentUser().getString(
                ParseConstants.KEY_PRESENTING_USERNAME)
        + "!  bad news.. :(");
mListView.setEmptyView(empty);

mSwipeRefreshLayout = (SwipeRefreshLayout) rootView
        .findViewById(R.id.swipeRefreshLayout);
mSwipeRefreshLayout.setOnRefreshListener(mOnRefreshListener);
mSwipeRefreshLayout.setColorScheme(R.color.swipeRefresh1,
        R.color.swipeRefresh2, R.color.swipeRefresh3,
        R.color.swipeRefresh4);

return rootView;

推荐答案

SwipeRefreshLayout应该是XML文件中的父级.

SwipeRefreshLayout should be the parent in the XML file.

您可以将FrameLayout用作SwipeRefreshLayout的子级. ListView和TextView(或任何其他空状态视图)可以是FrameLayout的子视图.

You can use a FrameLayout as the child of SwipeRefreshLayout. The ListView and TextView (or any other empty state view) can be child views of the FrameLayout.

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