Android TabHost 和 SearchView 焦点问题

Question

我有一个非常奇怪的问题。我有一个带有 fragment 的寻呼机。其中一个 fragment 是消息 fragment 。在这个 fragment 中，我有一个带有三个选项卡 fragment 的 FragmentTabHost。在操作栏中，我有一个 SearchView。当我想要搜索某些东西并开始编写查询字符串时，搜索 View 的焦点从它移除并设置为 TabHost 的第一个选项卡。这样我就不能写查询字符串了。只有当我靠近 MessagesFragment 时才会发生这种情况。例如:如果我足够远(1 页)，则搜索工作正常。

谁能告诉我问题出在哪里？

这是一张图片:

消息 fragment :

public class MessagesFragment extends Fragment {
private FragmentTabHost tabHost;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    this.tabHost = new FragmentTabHost(this.getActivity());
    this.tabHost.setup(this.getActivity(), this.getChildFragmentManager(), container.getId());

    TabSpec tabSpecForAllMessages = this.tabHost.newTabSpec("all").setIndicator("ALL");
    this.tabHost.addTab(tabSpecForAllMessages, AllMessagesFragment.class, null);

    TabSpec tabSpecForSentMessages = this.tabHost.newTabSpec("sent").setIndicator("SENT");
    this.tabHost.addTab(tabSpecForSentMessages, SentMessagesFragment.class, null);

    TabSpec tabSpecForReceivedMessages = this.tabHost.newTabSpec("received").setIndicator("RECEIVED");
    this.tabHost.addTab(tabSpecForReceivedMessages, ReceivedMessagesFragment.class, null);

    return this.tabHost;
}

@Override
public void onDestroyView() {
    super.onDestroyView();
    this.tabHost = null;
}

选项卡主机布局:

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent" >

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TabWidget
        android:id="@android:id/tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </TabWidget>

    <FrameLayout
        android:id="@android:id/tabcontent"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
    </FrameLayout>
</LinearLayout>

</TabHost>

操作栏菜单项:

<?xml version="1.0" encoding="utf-8"?>

<item
    android:id="@+id/menu_item_search"
    android:actionViewClass="android.widget.SearchView"
    android:icon="@drawable/ic_action_search"
    android:showAsAction="collapseActionView|ifRoom"
    android:title="@string/title_search" />

<item
    android:id="@+id/menu_item_home"
    android:icon="@drawable/ic_action_home"
    android:showAsAction="always"
    android:title="@string/title_home" />

onCreateOptionsMenu 事件处理程序:

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = this.getMenuInflater();
    inflater.inflate(R.menu.options_menu, menu);

    // Associate searchable configuration with the SearchView
    SearchManager searchManager =
            (SearchManager) getSystemService(Context.SEARCH_SERVICE);
    SearchView searchView =
            (SearchView) menu.findItem(R.id.menu_item_search).getActionView();
    searchView.setSearchableInfo(searchManager.getSearchableInfo(this
            .getComponentName()));

    return true;
}

Answer 1

尝试添加方法

@Override
public boolean onQueryTextChange(String text) {
    if(searchView!=null)
        searchView.requestFocusFromTouch();

    return true;
}

searchView必须是init SearchView searchView;

我的 onCreateOptionsMenu 方法:

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.only_search, menu);
    MenuItem searchItem = menu.findItem(R.id.action_search);
    searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
    searchView.setOnTouchListener(new OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            searchView.requestFocusFromTouch();
            return true;
        }
    });
}

它对我有用!