SearchView的OnCloseListener不起作用

Question

我正在尝试添加SearchView对Android 3.0+ ActionBar的支持,但我无法让它OnCloseListener工作.

这是我的代码:

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu, menu);
    searchView = (SearchView) menu.findItem(R.id.search_textbox).getActionView();
    searchView.setOnQueryTextListener(new OnQueryTextListener() {
        @Override
        public boolean onQueryTextChange(String newText) {
            searchLibrary(newText);
            return false;
        }
        @Override
        public boolean onQueryTextSubmit(String query) { return false; }
    });
    searchView.setOnCloseListener(new OnCloseListener() {
        @Override
        public boolean onClose() {
            System.out.println("Testing. 1, 2, 3...");
            return false;
        }
    });
    return true;
}

搜索效果很好,每个人都在工作,除了OnCloseListener.没有任何东西被打印到Logcat.这是我按下"关闭"按钮时的Logcat:

02-17 13:01:52.914: I/TextType(446): TextType = 0x0
02-17 13:01:57.344: I/TextType(446): TextType = 0x0
02-17 13:02:02.944: I/TextType(446): TextType = 0x0

我查看了文档和示例,但似乎没有任何改变.我在冰淇淋三明治上的Asus Transformer Prime和Galaxy Nexus上运行它.有任何想法吗？

更新:

是的 - System.out.println() 确实有效.这是证据:

   @Override
 public boolean onQueryTextChange(String newText) {
    System.out.println(newText + "hello");
    searchLibrary(newText);
    return false;
 }

结果在这个Logcat中:

02-17 13:04:20.094: I/System.out(21152): hello
02-17 13:04:24.914: I/System.out(21152): thello
02-17 13:04:25.394: I/System.out(21152): tehello
02-17 13:04:25.784: I/System.out(21152): teshello
02-17 13:04:26.064: I/System.out(21152): testhello

Answer 1

我也遇到了这个问题,我别无选择,只能放弃"oncloselistener".相反,你可以得到你的menuItem setOnActionExpandListener.然后覆盖unimplents方法.

@Override
public boolean onMenuItemActionExpand(MenuItem item) {
    // TODO Auto-generated method stub
    Log.d("*******","onMenuItemActionExpand");
    return true;
}

@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
    //do what you want to when close the sesarchview
    //remember to return true;
    Log.d("*******","onMenuItemActionCollapse");
    return true;
}

Answer 2

对于Android API 14+(ICS和更高版本),请使用以下代码:

// When using the support library, the setOnActionExpandListener() method is
// static and accepts the MenuItem object as an argument
MenuItemCompat.setOnActionExpandListener(menuItem, new OnActionExpandListener() {
    @Override
    public boolean onMenuItemActionCollapse(MenuItem item) {
        // Do something when collapsed
        return true;  // Return true to collapse action view
    }

    @Override
    public boolean onMenuItemActionExpand(MenuItem item) {
        // Do something when expanded
        return true;  // Return true to expand action view
    }
});

有关更多信息,请访问:http://developer.android.com/guide/topics/ui/actionbar.html#ActionView

参考:onActionCollapse/onActionExpand

Answer 3

对于这个问题我想出了这样的事情,

private SearchView mSearchView;

@TargetApi(14)
@Override
public boolean onCreateOptionsMenu(Menu menu)
{

    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.conversation_index_activity_menu, menu);

    mSearchView = (SearchView) menu.findItem(R.id.itemSearch).getActionView();

    MenuItem menuItem = menu.findItem(R.id.itemSearch);

    int currentapiVersion = android.os.Build.VERSION.SDK_INT;
    if (currentapiVersion >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH)
    {
        menuItem.setOnActionExpandListener(new OnActionExpandListener()
        {

            @Override
            public boolean onMenuItemActionCollapse(MenuItem item)
            {
                // Do something when collapsed
                Log.i(TAG, "onMenuItemActionCollapse " + item.getItemId());
                return true; // Return true to collapse action view
            }

            @Override
            public boolean onMenuItemActionExpand(MenuItem item)
            {
                // TODO Auto-generated method stub
                Log.i(TAG, "onMenuItemActionExpand " + item.getItemId());
                return true;
            }
        });
    } else
    {
        // do something for phones running an SDK before froyo
        mSearchView.setOnCloseListener(new OnCloseListener()
        {

            @Override
            public boolean onClose()
            {
                Log.i(TAG, "mSearchView on close ");
                // TODO Auto-generated method stub
                return false;
            }
        });
    }


    return super.onCreateOptionsMenu(menu);

}

Answer 4

我在android 4.1.1上遇到了同样的问题.看起来这是一个已知的错误:https://code.google.com/p/android/issues/detail？id = 25758

无论如何,作为一种解决方法,我使用状态更改侦听器(当SearchView与操作栏分离时,它也明显关闭).

view.addOnAttachStateChangeListener(new OnAttachStateChangeListener() {

    @Override
    public void onViewDetachedFromWindow(View arg0) {
        // search was detached/closed
    }

    @Override
    public void onViewAttachedToWindow(View arg0) {
        // search was opened
    }
});

以上代码在我的案例中运作良好.

我在这里发布相同的答案:https://stackoverflow.com/a/24573266/2162924

Answer 5

我最终使用了一些黑客,这对我的目的很有效 - 不确定它是否适用于所有目的.无论如何,我正在检查搜索查询是否为空.这是不是真的涉及到SearchView的OnCloseListener,虽然-这仍然无法正常工作!

searchView.setOnQueryTextListener(new OnQueryTextListener() {
            @Override
            public boolean onQueryTextChange(String newText) {
                if (newText.length() > 0) {
                    // Search
                } else {
                    // Do something when there's no input
                }
                return false;
            }
            @Override
            public boolean onQueryTextSubmit(String query) { return false; }
        });

Answer 6

好吧,这解决了我的问题:

菜单项 showAsAction="always"

<item
    android:id="@+id/action_search"
    android:icon="@drawable/ic_action_search"
    android:title="Search"
    app:actionViewClass="android.support.v7.widget.SearchView"
    app:showAsAction="always"/>

和活动

searchView.setOnCloseListener(new OnCloseListener() {

        @Override
        public boolean onClose() {

            Log.i("SearchView:", "onClose");
            searchView.onActionViewCollapsed();
            return false;
        }
    });

Answer 7

为了使OnCloseListener工作正常进行，请确保在搜索菜单项中将其showAsAction设置为。always

<menu xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      xmlns:tools="http://schemas.android.com/tools"
      tools:context=".SearchActivity">

    <item
        android:id="@+id/search"
        android:title="@string/search"
        android:icon="@drawable/ic_search_toolbar"
        app:showAsAction="always"
        app:actionViewClass="android.support.v7.widget.SearchView"/>
</menu>