搜索视图关闭图标显示为禁用而不是白色

Question

每当我在搜索视图中输入内容时，关闭按钮 (X) 似乎由于某种原因被禁用，而不是显示为白色。如何解决此错误以使其显示为白色？

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    inflater.inflate(R.menu.menu_search_list, menu);
    MenuItem item = menu.findItem(R.id.action_search);
    SearchView searchView = (SearchView) MenuItemCompat.getActionView(item);
    searchView.setOnQueryTextListener(this);
    searchView.setQueryHint(getResources().getString(R.string.station_search_hint));
}

menu_search_list.xml

<?xml version="1.0" encoding="utf-8"?>
<menu
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto" >
    <item android:id="@+id/action_search"
        android:icon="@drawable/ic_action_search_light"
        android:title="@string/action_search"
        android:orderInCategory="100"
        app:showAsAction="always"
        app:actionViewClass="android.support.v7.widget.SearchView"/>
</menu>

Answer 1

清除为空时隐藏关闭图标的解决方案。

在 app:showAsAction 属性中使用 "collapseActionView|always"。

<item
    android:id="@+id/action_search"
    android:icon="@drawable/ic_search"
    android:title="@string/menu_action_search"
    app:showAsAction="collapseActionView|always"
    app:actionViewClass="android.support.v7.widget.SearchView"/>

Answer 2

您的代码看起来不错。 试试下面的代码：

final MenuItem search = menu.findItem(R.id.action_search);
    if (search != null) {
        SearchView searchView = (SearchView) MenuItemCompat.getActionView(search);
        search.expandActionView();
        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {
                return false;
            }

            @Override
            public boolean onQueryTextChange(String newText) {
                // Your Logic
                return false;
            }
        });
        MenuItemCompat.setOnActionExpandListener(search, new MenuItemCompat.OnActionExpandListener() {
            @Override
            public boolean onMenuItemActionExpand(MenuItem item) {
                return false;
            }

            @Override
            public boolean onMenuItemActionCollapse(MenuItem item) {
                finish();
                return true;
            }
        });

还有一个调整： 在onPrepareOptionsMenu 中尝试相同的上述代码，并在顶部添加以下额外行

menu.clear();
getMenuInflater().inflate(R.menu.menu_search_list, menu);
...
// Above code

Answer 3

ImageView close_button = (ImageView)searchView.findViewById(R.id.close_button);
close_button .setBackgroundResource(R.drawable.your_icon);

或（使用选择器）

 ImageView close_button =(ImageView)searchView.findViewById(R.id.close_button);
 close_button .setBackgroundResource(R.drawable.your_image_selector);   

Answer 4

我想复制粘贴下一个代码：

View close = searchView.findViewById(R.id.search_close_btn);
close.setBackgroundResource(R.drawable.desired_icon);

不是很好的解决方案。请为此使用样式。
第一个解决方案。在您的主要主题中添加关闭图标作为默认 android:searchViewCloseIcon：

<style name="Theme" parent="AppBaseTheme">
<item name="android:searchViewCloseIcon">@drawable/ic_your_search_close_icon</item>
</style>

第二个解决方案（更好）。为您的操作栏设置样式

<style name="CustomActionBarTheme" parent="@style/Theme.AppCompat.Light.DarkActionBar">
        <item name="android:actionBarStyle">@style/MyActionBar</item>
        <!-- Support library compatibility -->
        <item name="actionBarStyle">@style/MyActionBar</item>
    </style>

<!-- ActionBar styles -->
    <style name="MyActionBar"
           parent="@style/Theme.AppCompat.Light.DarkActionBar">
        <item name="searchViewCloseIcon">@android:drawable/ic_your_search_close_icon</item>
    </style>

其他 SearchView 属性（来自appcompat-v7 source code(更新链接)）：

<attr name="searchResultListItemHeight" format="dimension" />
<attr name="searchViewAutoCompleteTextView" format="reference" />
<attr name="searchViewCloseIcon" format="reference" />
<attr name="searchViewEditQuery" format="reference" />
<attr name="searchViewEditQueryBackground" format="reference" />
<attr name="searchViewGoIcon" format="reference" />
<attr name="searchViewSearchIcon" format="reference" />
<attr name="searchViewTextField" format="reference" />
<attr name="searchViewTextFieldRight" format="reference" />
<attr name="searchViewVoiceIcon" format="reference" />

示例用法：

<item name="searchDropdownBackground">@android:drawable/spinner_dropdown_background</item>
<item name="searchViewTextField">@drawable/textfield_searchview_holo_dark</item>
<item name="searchViewTextFieldRight">@drawable/textfield_searchview_right_holo_dark</item>
<item name="searchViewCloseIcon">@android:drawable/ic_clear</item>
<item name="searchViewSearchIcon">@android:drawable/ic_search</item>
<item name="searchViewGoIcon">@android:drawable/ic_go</item>
<item name="searchViewVoiceIcon">@android:drawable/ic_voice_search</item>
<item name="searchViewEditQuery">@android:drawable/ic_commit_search_api_holo_dark</item>
<item name="searchViewEditQueryBackground">?attr/selectableItemBackground</item>
<item name="searchDialogTheme">@style/Theme.SearchBar</item>

有关样式的更多信息：
Android – Theming ActionBar and the SearchView within it by Andreas Nilsson
Styling the Action Bar by Android 官方文档