SearchView没有显示建议

Question

我正在尝试在我的android活动中的searchview中实现建议，但未调用Content provider query（）方法。

下面是我的代码，请花一些时间检查它并查找问题

MainActivity

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
    getSupportActionBar().setCustomView(R.layout.action_bar);



    SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
    SearchView searchView = findViewById(R.id.searchV);
    searchView.setSearchableInfo(searchManager != null ? searchManager.getSearchableInfo(getComponentName()) : null);
    searchView.setIconifiedByDefault(false);

activity_main.xml

<android.support.constraint.ConstraintLayout  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"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">


<android.support.v7.widget.SearchView
    android:id="@+id/searchV"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"/>

AndroidManifest.xml

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

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.SEARCH" />
        </intent-filter>


        <meta-data
            android:name="android.app.searchable"
            android:resource="@xml/searchable" />
        <intent-filter>

            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <provider
        android:name=".medicaProvider"
        android:authorities="meds.medicaProvider" />
</application>

src / xml / searchable.xml

<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="Label"
android:hint="hintsss"
android:searchSuggestAuthority="meds.medicaProvider"
android:searchSuggestIntentAction="android.intent.action.VIEW"
android:includeInGlobalSearch="true"

/>

medicaProvider.java

public class medicaProvider extends ContentProvider {

baseHelper baseAccess ;
String query;
private static final UriMatcher sUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
static {
    sUriMatcher.addURI("meds.medicaProvider",SUGGEST_URI_PATH_QUERY+"/*", 1);

}




@Override
public boolean onCreate() {
    baseAccess = baseHelper.getInstance(getContext());
    System.out.println("*****************query Created*******************");

    return true;
}

@Override
public Cursor query(Uri uri, String[] strings, String s, String[] strings1, String s1) {
    Toast.makeText(getContext(), "it workkks", Toast.LENGTH_SHORT).show();
    System.out.println("*****************query called*******************" +
            "*****************query called*******************" +
            "*****************query called*******************" +
            "*****************query called*******************");

    if(sUriMatcher.match(uri)==1){
        query=uri.getLastPathSegment().toUpperCase();
    }

    baseAccess.open();

    String[] columns= new String[]{BaseColumns._ID, SearchManager.SUGGEST_COLUMN_TEXT_1,SearchManager.SUGGEST_COLUMN_TEXT_2,SearchManager.SUGGEST_COLUMN_INTENT_DATA} ;
    Object[] temp = new Object[] { "0", "default","default","default" };
    MatrixCursor maxCursor = new MatrixCursor(columns);
    Cursor c =baseAccess.getQuotes(query,null,1);
   // Toast.makeText(getContext(),"cursor is "+c.moveToNext(), Toast.LENGTH_SHORT).show();
   while(c.moveToNext()){
       temp[0]=c.getString(0);
       temp[1]=c.getString(1)+" "+c.getString(2)+" "+c.getString(4);
       temp[2]=c.getString(7)+"/"+c.getString(15);
       temp[3]=c.getString(0);
       maxCursor.addRow(temp);
   }
    return maxCursor;
}

我正在尝试通过

验证query（）是否成功

System.out.println("*****************query called*******************" +
            "*****************query called*******************" +
            "*****************query called*******************" +
            "*****************query called*******************");

但控制台中没有任何显示

谢谢