默认情况下，SearchView 不会填充整个操作栏，并且不会响应单击

Question

我环顾四周，但未能找到我要找的东西。一点帮助将不胜感激。我正在尝试实现一个搜索小部件，如下所示。但是，我得到了一个奇怪的设置。搜索图标甚至没有显示，在最右侧有三个垂直点作为工具栏的一部分，当我单击这些点时，会出现一个搜索框。但是单击它不会通过setOnClickListener或setOnQueryTextFocusChangeListener注册任何内容。任何帮助将不胜感激。这样：

打开应用程序时的工具栏

弹出搜索菜单 - 单击它时不执行任何操作

这是我所拥有的

我的搜索活动：

class SearchCategoryActivity : MvvmActivity<SearchCategoryViewModel>() {
companion object {
private const val CATEGORY = "category"
fun newIntent(context: Context): Intent {
return Intent(context, SearchCategoryActivity::class.java)
}
}
@Inject
lateinit var viewModelFactory: ViewModelProvider.Factory
val listofCategories : List<Category>? = null
private lateinit var adapter: CategoryGroupAdapter
var browsingData : List<Category>? = null
override fun onCreate(savedInstanceState: Bundle?) {
AndroidInjection.inject(this)
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_search_category)
setSupportActionBar(toolbar)
val actionBar = supportActionBar
actionBar?.setDisplayHomeAsUpEnabled(true)
adapter = CategoryGroupAdapter(this)
adapter.setOnClickListener { category, _ -> onCategoryClick(category) }
recyclerView.layoutManager = LinearLayoutManager(this)
recyclerView.itemAnimator = DefaultItemAnimator()
recyclerView.adapter = adapter
toolbar.setNavigationOnClickListener { finish() }
//clearImageView.setOnClickListener { searchEdiText.text = null }
addFab.setOnClickListener { onAddFabClick() }

viewModel.loadCategories.subscribe(this, object : FlowableSubscriber<List<Category>> {
override fun onNext(data: List<Category>) {
browsingData = data
onLoadCategories(data)
}
override fun onComplete() {
Timber.error { "onComplete" }
}
override fun onError(error: Throwable) {
onLoadCategoriesFailed(error)
}
})
LceAnimator.showLoading(loading, content, error)
viewModel.loadCategories()
System.out.println("Here")

}
override fun onCreateOptionsMenu(menu: Menu): Boolean {
// Inflate the options menu from XML
val inflater = menuInflater
inflater.inflate(R.menu.menu_search, menu)
// Get the SearchView and set the searchable configuration
val searchManager = getSystemService(Context.SEARCH_SERVICE) as SearchManager
val searchView = menu.findItem(R.id.action_search).actionView as SearchView?
// Assumes current activity is the searchable activity
searchView?.setSearchableInfo(searchManager.getSearchableInfo(componentName))
searchView?.setIconifiedByDefault(false) // Do not iconify the widget; expand it by default
searchView?.setOnClickListener(object : View.OnClickListener {
override fun onClick(v: View?) {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
System.out.println("clicked")
}
})
searchView?.setOnQueryTextFocusChangeListener(object : View.OnFocusChangeListener {
override fun onFocusChange(v: View?, hasFocus: Boolean) {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
})

我的搜索活动.xml：

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/background">
<!-- Dummy item to prevent AutoCompleteTextView from receiving focus -->

<!-- :nextFocusUp and :nextFocusLeft have been set to the id of this component
to prevent the dummy from receiving focus again -->

<com.google.android.material.appbar.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/ThemeOverlay.AppCompat.Dark">
<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize">
</androidx.appcompat.widget.Toolbar>
</com.google.android.material.appbar.AppBarLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<include layout="@layout/layout_loading" />
<include layout="@layout/layout_search" />
<include layout="@layout/layout_error" />
</FrameLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>

我的可搜索.xml：

<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/app_name"
android:hint="@string/search_hint" />

我search_menu.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:actionViewClass="android.widget.SearchView"
android:layout_width="match_parent"
android:icon="@android:drawable/ic_search_category_default"
android:showAsAction="always"
android:title="@string/search"
app:queryBackground="@color/background"/>
</menu>

Answer 1

尝试添加app而不是android并使用v7：

app:actionViewClass="android.support.v7.widget.SearchView"

此外，要使其可折叠：

app:showAsAction="always|collapseActionView"

而且不需要android:layout_width="match_parent".

Answer 2

你可以试试这个，这样它就会填满toolbar

searchMenuItem.actionView.also {
it.post { 
it.layoutParams = it.layoutParams.apply {
width = ViewGroup.LayoutParams.MATCH_PARENT
}
}
}