Cannot be cast to android.app.Activity : When trying to add search to a fragment

Question

I am trying to accomplish a task and even if I have read other topics on the same, I am experiencing extreme difficulty.

Situation

I have a program built from a navigation template and I am trying to add search functionality. I have accomplish this task with an app using activities but I haven't been able to recreate this with fragments.

Problem

When I try to search I get the error.

java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{.MySearchableActivity}: java.lang.ClassCastException: .MySearchableActivity cannot be cast to android.app.Activity

I believe this is getting done because I am calling an intent in a fragment, however I am unsure of how else I can accomplish that.

public class MySearchableActivity extends Fragment {
    RequestQueue requestQueue;
    List<NumberResults> storiesList = new ArrayList<>();
    private RecyclerView recycle;


    private static final String TAG = "junk";
    private Toolbar toolbar;
    private ListView myList;
  //  final Context context = this;

    //  @Override
    //protected void onCreate(Bundle savedInstanceState)
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        //super.onCreate(savedInstanceState);
        // setContentView(R.layout.fragment_ministry_numbers);

      //  toolbar = (Toolbar) findViewById(R.id.app_bar);
     //   setSupportActionBar(toolbar);
        Log.i(TAG, "in MySearchableActivity");


        View layout = inflater.inflate(R.layout.fragment_ministry_numbers, container, false);
        recycle = (RecyclerView) layout.findViewById(R.id.drawrList);
        recycle.setLayoutManager(new LinearLayoutManager(getActivity()));
        recycle.setHasFixedSize(true);


        Intent intent = getActivity().getIntent();
        handleIntent(intent);

        return layout;
    }

    private void handleIntent(Intent intent) {
        // get the query out of the intent
        if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
            String searchQuery = intent.getStringExtra(SearchManager.QUERY);
            doSearchQuery(searchQuery);
        }

    }
     /*
    @Override
    protected void onNewIntent(Intent intent) {
        Log.i(TAG, "in onNewIntent");
        getActivity().setIntent(intent);
        handleIntent(intent);
    }
*/

    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        super.onCreateOptionsMenu(menu, inflater);
        menu.clear();
        inflater.inflate(R.menu.main, menu);
        MenuItem item = menu.findItem(R.id.searchActionBarItem);
        SearchView searchView = (SearchView) MenuItemCompat.getActionView(item);
        MenuItemCompat.setShowAsAction(item, MenuItemCompat.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW | MenuItemCompat.SHOW_AS_ACTION_IF_ROOM);
        MenuItemCompat.setActionView(item, searchView);
        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {
                return false;
            }
            @Override
            public boolean onQueryTextChange(String newText) {
                return false;
            }
        });
        searchView.setOnClickListener(new View.OnClickListener() {
                                          @Override
                                          public void onClick(View v) {

                                          }
                                      }
        );
    }


    private void doSearchQuery(String query) {

        final MinNumAdapters rvAdapter = new MinNumAdapters(storiesList);
        recycle.setAdapter(rvAdapter);


        requestQueue = Volley.newRequestQueue(getActivity());
        String url = "http://werver.com/searchablewho.php?owner=" + query;


        JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(url, new Response.Listener<JSONArray>() {
            @Override
            public void onResponse(JSONArray response) {
                try {
                    if (response.length() > 0) {
                        storiesList.clear();
                        for (int i = 0; i < response.length(); i++) {
                            JSONObject jsonObject = response.getJSONObject(i);
                            NumberResults stories = new NumberResults();

                            if (!jsonObject.isNull("number")) {
                                stories.name = jsonObject.getString("number");
                            }
                            if (!jsonObject.isNull("owner")) {


                                stories.age = jsonObject.getString("owner");



                            }
                            storiesList.add(i, stories);
                        }
                        rvAdapter.notifyDataSetChanged();
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                // do something
            }
        });

        requestQueue.add(jsonArrayRequest);

    }

}

Stack Trace

11-17 17:15:00.308 18802-18802/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: technologies.mirage.prigovdirectory, PID: 18802
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{technologies.mirage.prigovdirectory/technologies.mirage.prigovdirectory.MinNumResults.MySearchableActivity}: java.lang.ClassCastException: technologies.mirage.prigovdirectory.MinNumResults.MySearchableActivity cannot be cast to android.app.Activity
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2236)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
    at android.app.ActivityThread.access$800(ActivityThread.java:151)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:135)
    at android.app.ActivityThread.main(ActivityThread.java:5254)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.ClassCastException: technologies.mirage.prigovdirectory.MinNumResults.MySearchableActivity cannot be cast to android.app.Activity
    at android.app.Instrumentation.newActivity(Instrumentation.java:1066)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2226)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) 
    at android.app.ActivityThread.access$800(ActivityThread.java:151) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:135) 
    at android.app.ActivityThread.main(ActivityThread.java:5254) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:372) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)

Call to Search

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


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


    SearchManager searchManager =
            (SearchManager) getSystemService(Context.SEARCH_SERVICE);

    MenuItem searchActionBarItem = menu.findItem(R.id.searchActionBarItem);

    SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchActionBarItem);
    searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
    searchView.setIconifiedByDefault(true);


    return true;
}

App Manifest

<uses-permission android:name="android.permission.CALL_PHONE"/>
<uses-permission android:name="android.permission.INTERNET" />
<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:theme="@style/AppTheme.NoActionBar">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <action android:name="android.intent.action.SEARCH"/>
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
        <meta-data
            android:name="android.app.default_searchable"
            android:value=".MinNumResults.MySearchableActivity"/>
    </activity>



    <activity
        android:name=".MinNumResults.MySearchableActivity"
        android:label="@string/app_name"
        android:launchMode="singleTop">
        <intent-filter>
            <action android:name="android.intent.action.SEARCH"/>
        </intent-filter>
        <meta-data
            android:name="android.app.searchable"
            android:resource="@xml/search_config"/>
    </activity>
</application>

How do you call MySearchableActivity? Seems, you try to use it like an Activity, but actually it's a Fragment. You shouldn't name fragments this way. — lewkka, Nov 17 '16 at 23:00
@lewkka I've added the call to the MySearchableActivity. it also goes in the manifest, but as far as i've read ( and correct me if im wrong). It has to be an activity. — Unknown Code, Nov 17 '16 at 23:09
yeah, so in your case it's not an Activity, despite you name it so. — lewkka, Nov 17 '16 at 23:12

score 0 · Answer 1 · edited May 23 '17 at 11:53

0

Naming fragment as activity wouldn't work: you can't use fragment as activity and as searchable in AndroidManifest.

You must read that thread. Hope, this will help you to find the correct way. GL

edited May 23 '17 at 11:53

Community

1
1

answered Nov 17 '16 at 23:14

lewkka

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Cannot be cast to android.app.Activity : When trying to add search to a fragment

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