SearchView getActionView returning null

问题

This was working a few days ago, but suddenly it stopped. I only want to use the action bar search widget when certain fragment is visible.

Now I'm unable to get the SearchView, now getActionView always returns null.

searchable.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_for_places">
</searchable>

Manifest.xml

<activity
    android:name=".ui.activities.MainActivity"
    android:launchMode="singleTop">
    <intent-filter>
        <action android:name="android.intent.action.MAIN"/>
        <category android:name="android.intent.category.LAUNCHER"/>
        <action android:name="android.intent.action.SEARCH"/>
    </intent-filter>
    <meta-data
        android:name="android.app.searchable"
        android:resource="@xml/searchable"/>
    <meta-data
    android:name="android.app.default_searchable"
    android:value=".ui.activities.MainActivity" />
</activity>

menu.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:myapp="http://schemas.android.com/apk/res-auto">
    <item
        android:id="@+id/action_search_place"
        android:icon="@drawable/ic_2_action_search"
        android:orderInCategory="1"
        android:title="@string/title_search"
        myapp:showAsAction="collapseActionView|ifRoom"
        myapp:actionViewClass="android.support.v7.widget.SearchView"/>
</menu>

The fragment

...
setHasOptionsMenu(true);
...



@Override
public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
    inflater.inflate(R.menu.menu, menu);
    MenuItem searchItem = menu.findItem(R.id.action_search_place);
    mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);

    SearchManager searchManager = (SearchManager) getBaseActivity().getSystemService(Context.SEARCH_SERVICE);
    if (mSearchView != null) {
        mSearchView.setSearchableInfo(searchManager.getSearchableInfo(getActivity().getComponentName()));
        mSearchView.setIconifiedByDefault(true);
        mSearchView.setOnQueryTextListener(this);
    }
    super.onCreateOptionsMenu(menu, inflater);
}

回答1:

Today I had the same problem and I think I solved it. It turns out I did couple of things that were not exactly as per the ActionBarCompat contract:

Each activity that uses the ActionBarCompat should extend ActionBarActivity instead of FragmentActivity directly
Each activity that uses the ActionBarCompat should declare its theme as inheriting from the ActionBarCompat themes.

Both of those I found watching the explanation video from Google.

Now my searchView is not null anymore.

回答2:

I had the same problem because in my menu I used: android:actionViewClass="android.widget.SearchView" as per the google documentation.

Well it turns out that if I'm using AppCompatActivity I should use app:actionViewClass="android.widget.SearchView" instead.

Hope this helps someone.

回答3:

If you're using proguard this is the possible answer: https://code.google.com/p/android/issues/detail?id=58508

In short, add below line to your proguard config file proguard-rules.pro.

-keep class android.support.v7.widget.SearchView { *; }

回答4:

I fixed it: in the menu xml, I used app namespace:

    app:showAsAction="collapseActionView|always"
    app:actionViewClass="android.support.v7.widget.SearchView"

The Android's tutorial, https://developer.android.com/training/search/setup.html, uses android:showAs and android:actionView...

回答5:

Changing to import android.support.v7.widget.SearchView helped me

回答6:

I was with the same error. And i've made the following things:

I have an Activity extending by FragmentActivity:

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.feed, menu);

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

    return true;
}

Searchable.xml:

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

Menu.xml:

<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="br.com.srtorcedor.FeedActivity">

    <item android:id="@+id/action_search"
        android:icon="@drawable/abc_ic_search"
        android:title="@string/search_title"
        android:showAsAction="always"
        android:actionViewClass="android.widget.SearchView"/>

</menu>

AndroidManifest:

  <activity
        android:name=".FeedActivity"
        android:icon="@drawable/ic_action_pins"
        android:label="@string/title_activity_feed">
        <intent-filter>
            <action android:name="android.intent.action.SEARCH" />
        </intent-filter>
        <meta-data
            android:name="android.app.searchable"
            android:resource="@xml/searchable" />
    </activity>

Could you check if it works with you?

回答7:

Today I figured out that I was getting null from the getActionView() call on items that did not have:

android:showAsAction="always"

It seems otherwise they just don't inflate correctly.

回答8:

For me the following solution worked:

<?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"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context="com.dev.ttburger.conttagem.BuscarProdutoActivity">
    <item
        android:id="@+id/search"
        android:icon="@drawable/ic_search"
        android:title="Buscar"
        app:showAsAction="always"   
        app:actionViewClass="android.support.v7.widget.SearchView"/>
</menu>

Change to:

<?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"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context="com.dev.ttburger.conttagem.BuscarProdutoActivity">
    <item
        android:id="@+id/search"
        android:icon="@drawable/ic_search"
        android:title="Buscar"
        app:showAsAction="always"   
        app:actionViewClass="android.SearchView"/>
</menu>

回答9:

I added this too:

setHasOptionsMenu(true);

Working with this and @maxandron answer

来源：https://stackoverflow.com/questions/18407171/searchview-getactionview-returning-null

标签

android

android-searchmanager

android-support-library