Cara mengimplementasikan onClickItem dengan benar dari tampilan daftar aktivitas pencarian

Saya memiliki aktivitas pencarian (ActivitySearch.java) yang mengembalikan hasil dengan benar ketika saya menggunakan tombol 'Go' pada keyboard lunak, ia mengembalikan semua hasil dari saran pencarian. Saya menggunakan Penyedia Konten dan Cursor LoaderCallbacks. Ini pertama kalinya saya mencoba LoaderCallbacks dan melakukan aktivitas pencarian.

Sekarang saya ingin dapat mengklik salah satu hasil yang disarankan melalui onClickItem/onClickItemListenter, dan mengembalikannya ke tampilan daftar pencarian untuk pilihan akhir oleh pengguna, tetapi jelas saya tahu kode saya tidak benar. FYI, saya telah mengaktifkan semua aktivitas saya di proyek sebagai dapat dicari. Saya telah melihat banyak sampel tetapi saya belum dapat menemukan metode yang benar.

Saya menggunakan aktivitas sederhana (ActivityFloor.java) yang saya tekan tombol pencarian perangkat keras, hanya beberapa tombol, yang memulai maksud.

Aktivitas pencarian saya menggunakan tampilan default Android untuk hasil tampilan daftar. Itu juga mewarisi aktivitasnya dari MyListActivity, tapi ini untuk mendukung menu umum.

Inilah manifes saya:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.birdsall.tda"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="14"
    android:targetSdkVersion="17" />

<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-feature android:name="android.hardware.camera" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme"
    android:uiOptions="splitActionBarWhenNarrow"
     android:exported="true" >

    <meta-data android:name="com.google.android.apps.drive.APP_ID" android:value="id=12345" />

    <intent-filter>
    <action android:name="com.google.android.apps.drive.DRIVE_OPEN" />
    <data android:mimeType="application/vnd.google-apps.drive-sdk.12345" />
    <data android:mimeType="image/png" />
    <data android:mimeType="image/jpeg" />
    <data android:mimeType="image/jpg" />
    </intent-filter>

    <meta-data
        android:name="android.app.default_searchable"
        android:value=".ActivitySearch" />

    <activity
        android:name="com.birdsall.tda.ActivityMain"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity android:name=".ActivityFloor" >
    </activity>


    <provider
        android:name="com.birdsall.tda.TDAProvider"
        android:authorities="com.birdsall.tda.contentprovidertda"
        android:exported="true"
        android:readPermission="true"
        android:writePermission="true" />

    <activity
        android:name=".ActivitySearch"
        android:label="Rule Search"
        android:launchMode="singleTop" >
        <intent-filter>
            <action android:name="android.intent.action.SEARCH" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>

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

</manifest>

Ini searchable.xml saya di res/xml

<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/app_name"
android:searchSettingsDescription="@string/search_description"
android:searchSuggestAuthority="com.birdsall.tda.contentprovidertda"
android:searchSuggestIntentAction="android.intent.action.VIEW"
android:searchSuggestIntentData="content://com.birdsall.tda.TDAProvider/rules"
android:voiceSearchMode="showVoiceSearchButton|launchRecognizer" >

</searchable>

Inilah aktivitas pencarian saya (ActivitySearch.java):

package com.birdsall.tda;

import android.app.Activity;
import android.app.LoaderManager;
import android.app.SearchManager;
import android.content.ContentUris;
import android.content.CursorLoader;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;

public class ActivitySearch extends MyListActivity implements 
    LoaderManager.LoaderCallbacks<Cursor> {


private static String QUERY_EXTRA_KEY = "QUERY_EXTRA_KEY";

private SimpleCursorAdapter adapter;
private final String TAG = "ActivitySearch";

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Log.i(TAG, "onCreate");

    View mListView  = getListView();

    Log.i(TAG, "onCreate ... after setOnItemClickListener");

    Toast.makeText(getApplicationContext(), "onCreate ... after setOnItemClickListener", Toast.LENGTH_LONG).show();

    // Create a new adapter and bind it to the List View
    adapter = new SimpleCursorAdapter(this,
            android.R.layout.simple_list_item_1, null,
            new String[] { TDAdb.COL_RULETITLE },
            new int[] { android.R.id.text1 }, 0);
    setListAdapter(adapter);

    // Initiate the Cursor Loader
    getLoaderManager().initLoader(0, null, this);

    // Get the launch Intent
    parseIntent(getIntent());
}

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    Log.i(TAG, "onNewIntent");
    Toast.makeText(getApplicationContext(), "onNewIntent", Toast.LENGTH_LONG).show();
    parseIntent(getIntent());

}



private void parseIntent(Intent intent) {
    // If the Activity was started to service a Search request,
    // extract the search query.
    Log.i(TAG, "parseIntent");
    Toast.makeText(getApplicationContext(), "parseIntent", Toast.LENGTH_LONG).show();
    if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
        String searchQuery = intent.getStringExtra(SearchManager.QUERY);

        // Perform the search, passing in the search query as an argument
        // to the Cursor Loader
        Bundle args = new Bundle();
        args.putString(QUERY_EXTRA_KEY, searchQuery);

        // Restart the Cursor Loader to execute the new query.
        getLoaderManager().restartLoader(0, args, this);
    }
}

public Loader<Cursor> onCreateLoader(int id, Bundle args) {
    Log.i(TAG, "onCreateLoader");
    Toast.makeText(getApplicationContext(), "onCreateLoader", Toast.LENGTH_LONG).show();
    String query = "0";

    if (args != null) {
        // Extract the search query from the arguments.
        query = args.getString(QUERY_EXTRA_KEY);
    }

    // Construct the new query in the form of a Cursor Loader.
    String[] projection = { TDAdb.KEY_ROWID, TDAdb.COL_RULETITLE };
    String where = TDAdb.COL_RULETITLE + " LIKE \"%" + query + "%\"";
    String[] whereArgs = null;
    String sortOrder = TDAdb.COL_RULETITLE;

    // Create the new Cursor loader.
    return new CursorLoader(this, TDAProvider.CONTENT_URI_RULES,
            projection, where, whereArgs, sortOrder);
}

public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
    // Replace the result Cursor displayed by the Cursor Adapter with
    // the new result set.
    Log.i(TAG, "onLoadFinished");
    Toast.makeText(getApplicationContext(), "onLoadFinished", Toast.LENGTH_LONG).show();

    if (adapter == null) {
        Log.i(TAG, "onLoadFinished ... adapter is NULL");
        Toast.makeText(getApplicationContext(), "onLoadFinished ... adapter is NULL", Toast.LENGTH_LONG).show();
        this.finish();
    } 
    Log.i(TAG, "onLoadFinished ... adapter is valued");
    Toast.makeText(getApplicationContext(), "onLoadFinished ... adapter is valued", Toast.LENGTH_LONG).show();

    adapter.swapCursor(cursor);     

}

public void onLoaderReset(Loader<Cursor> loader) {
    // Remove the existing result Cursor from the List Adapter.
    Log.i(TAG, "onLoaderReset");
    Toast.makeText(getApplicationContext(), "onLoaderReset", Toast.LENGTH_LONG).show();
    adapter.swapCursor(null);
}

private void handleIntent(Intent intent) {
    Log.i(TAG, "handleIntent");
    Toast.makeText(getApplicationContext(), "handleIntent", Toast.LENGTH_LONG).show();
    if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
        // Gets the search query from the voice recognizer intent
        String query = intent.getStringExtra(SearchManager.QUERY);

        // Set the search box text to the received query and submit the
        // search
        // mSearchView.setQuery(query, true);
    }
}

  @Override
  protected void onListItemClick(ListView listView, View view, int position, long id) {
    super.onListItemClick(listView, view, position, id);
    Toast.makeText(getApplicationContext(), 
    " search listview position:" + position,
    Toast.LENGTH_LONG).show();
    // Create a URI to the selected item.
    Uri selectedUri = 
      ContentUris.withAppendedId(TDAProvider.CONTENT_URI, id);

    // Create an Intent to view the selected item.
    Intent intent = new Intent(Intent.ACTION_VIEW);
    intent.setData(selectedUri);

    // Start an Activity to view the selected item.
    startActivity(intent);
  }

}

SAYA TIDAK LAGI MENDAPATKAN KESALAHAN, TERIMA KASIH KEPADA Micheal (di bawah), Sehingga kesalahan LOGCAT dapat diabaikan.

Saya mendapatkan kesalahan, tetapi hanya setelah mencoba menerapkan pengkodean onClickItem dari logcat saya yang telah saya sertakan untuk kelengkapan.

06-2923:56:57.416: I/TDAProvider(13786): query 
06-2923:56:57.439: W/SuggestionsAdapter(13786): Search suggestions query threw an exception.
06-2923:56:57.439: W/SuggestionsAdapter(13786): java.lang.IndexOutOfBoundsException
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.net.Uri$PathSegments.get(Uri.java:978)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.net.Uri$PathSegments.get(Uri.java:963)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at com.birdsall.tda.TDAProvider.query(TDAProvider.java:180)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.content.ContentProvider.query(ContentProvider.java:652)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.content.ContentProvider$Transport.query(ContentProvider.java:189)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.content.ContentResolver.query(ContentResolver.java:370)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.content.ContentResolver.query(ContentResolver.java:313)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.app.SearchManager.getSuggestions(SearchManager.java:823)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.widget.SuggestionsAdapter.runQueryOnBackgroundThread(SuggestionsAdapter.java:190)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.widget.CursorFilter.performFiltering(CursorFilter.java:49)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.widget.Filter$RequestHandler.handleMessage(Filter.java:234)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.os.Looper.loop(Looper.java:137)
06-2923:56:57.439: W/SuggestionsAdapter(13786):     at android.os.HandlerThread.run(HandlerThread.java:60)
06-2923:57:00.002: I/TDAProvider(13786): query 
06-2923:57:00.049: I/TDAProvider(13786): query return cursor 
06-2923:57:00.635: I/TDAProvider(13786): query 
06-2923:57:00.635: I/TDAProvider(13786): query return cursor 
06-2923:57:01.275: I/TDAProvider(13786): query 
06-2923:57:01.275: I/TDAProvider(13786): query return cursor 
06-2923:57:02.650: W/InputEventReceiver(13786): Attempted to finish an input event but the input event receiver has already been disposed.
06-2923:57:02.689: I/ActivitySearch(13786): onCreate
06-2923:57:02.728: D/AndroidRuntime(13786): Shutting down VM
06-2923:57:02.728: W/dalvikvm(13786): threadid=1: thread exiting with uncaught exception (group=0x40e1b2a0)
06-2923:57:02.728: E/AndroidRuntime(13786): FATAL EXCEPTION: main
06-2923:57:02.728: E/AndroidRuntime(13786): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.birdsall.tda/com.birdsall.tda.ActivitySearch}: java.lang.ClassCastException: com.birdsall.tda.ActivitySearch cannot be cast to android.view.View$OnClickListener
06-2923:57:02.728: E/AndroidRuntime(13786):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2136)
06-2923:57:02.728: E/AndroidRuntime(13786):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2174)
06-2923:57:02.728: E/AndroidRuntime(13786):     at android.app.ActivityThread.access$700(ActivityThread.java:141)
06-2923:57:02.728: E/AndroidRuntime(13786):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1267)
06-2923:57:02.728: E/AndroidRuntime(13786):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-2923:57:02.728: E/AndroidRuntime(13786):     at android.os.Looper.loop(Looper.java:137)
06-2923:57:02.728: E/AndroidRuntime(13786):     at android.app.ActivityThread.main(ActivityThread.java:5059)
06-2923:57:02.728: E/AndroidRuntime(13786):     at java.lang.reflect.Method.invokeNative(Native Method)
06-2923:57:02.728: E/AndroidRuntime(13786):     at java.lang.reflect.Method.invoke(Method.java:511)
06-2923:57:02.728: E/AndroidRuntime(13786):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:792)
06-2923:57:02.728: E/AndroidRuntime(13786):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
06-2923:57:02.728: E/AndroidRuntime(13786):     at dalvik.system.NativeStart.main(Native Method)
06-2923:57:02.728: E/AndroidRuntime(13786): Caused by: java.lang.ClassCastException: com.birdsall.tda.ActivitySearch cannot be cast to android.view.View$OnClickListener
06-2923:57:02.728: E/AndroidRuntime(13786):     at com.birdsall.tda.ActivitySearch.onCreate(ActivitySearch.java:39)
06-2923:57:02.728: E/AndroidRuntime(13786):     at android.app.Activity.performCreate(Activity.java:5058)
06-2923:57:02.728: E/AndroidRuntime(13786):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
06-2923:57:02.728: E/AndroidRuntime(13786):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2100)
06-2923:57:02.728: E/AndroidRuntime(13786):     ... 11 more
06-2923:57:04.392: I/Process(13786): Sending signal. PID: 13786 SIG: 9

Terima kasih atas waktu dan bantuannya sebelumnya.

Inilah inti dari MyActivity, hanya menu umum untuk Aktivitas saya.

package com.birdsall.tda;

import android.app.ListActivity;
import android.content.Intent;
import android.view.Menu;
import android.view.MenuItem;

public class MyListActivity extends ListActivity {

String selectParam = "";

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch(item.getItemId()) {
    case android.R.id.home:
          Intent intent = new Intent(this, ActivityMain.class);
          intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
          startActivity(intent);
          return true;

    case R.id.am_index:
        Intent i1 = new Intent(this, ActivityIndex.class);
        startActivity(i1);
        return true;    

        /*  ...    More menu items */

    default:
        return super.onOptionsItemSelected(item);
    }

}
}

android listview search android-contentprovider
person Peter Birdsall    schedule 30.06.2013    source sumber
comment
apa itu MyListActivity?   -  person Raghunandan    schedule 30.06.2013
comment
Saya sebutkan di atas, ini merupakan override dari Activity, hanya memiliki info menu umum, saya menambahkan sumbernya.   -  person Peter Birdsall    schedule 30.06.2013
comment
Saya mengambil Aktivitas Pencarian yang berfungsi dari proyek lain dan mengganti kode saya dengannya dan saya masih mendapatkan hasil yang sama.   -  person Peter Birdsall    schedule 04.07.2013

Jawaban (2)


arrow_upward
0
arrow_downward

coba ini

@Override
public void onListItemClick( ListView parent, View v, int position, long id)
{ 
//...
}

di Activitymu

Anda tidak perlu menyetel listener untuk itu

semoga ini membantu..

person Michael Shrestha    schedule 30.06.2013
comment
Eclipse mengeluh tentang hal itu: 'Metode setOnClickListener(View.OnClickListener) dalam tipe View tidak berlaku untuk argumen (ActivitySearch) ', jadi saya mengubahnya menjadi yang berikut: 'mListView.setOnClickListener((OnClickListener) this);' tapi masih meledak. Saya berpikir apakah mListView saya salah didefinisikan atau ada kelas pencarian yang harus saya timpa. Terima kasih untuk sarannya. - person Peter Birdsall; 30.06.2013
comment
Saya mendapat saran Anda untuk menghentikan program agar tidak meledak, tetapi saya masih tidak mendapatkan apa pun di tampilan daftar setelah memilih item. Saya memperbarui ActivitySearch asli. - person Peter Birdsall; 01.07.2013

arrow_upward
0
arrow_downward

Saya telah menghabiskan sekitar 2 minggu untuk menghidupkan dan mematikan ini dan kode saya sedikit berubah. Saya menemukan setContentView dan tata letak lokal saya menjadi masalah karena tidak mendapatkan hasil. Saya akan memposting versi baru pada kode tersebut. Terima kasih semuanya.

package com.birdsall.tda;

import android.app.LoaderManager;
import android.app.SearchManager;
import android.app.SearchableInfo;
import android.content.ContentUris;
import android.content.Context;
import android.content.CursorLoader;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.Toast;

public class ActivitySearch extends MyListActivity implements
    LoaderManager.LoaderCallbacks<Cursor> {

private static String QUERY_EXTRA_KEY = "QUERY_EXTRA_KEY";
private static final String TAG = "ActivitySearch";

private SimpleCursorAdapter adapter;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    Log.i(TAG, "onCreate");

    adapter = new SimpleCursorAdapter(this,
            android.R.layout.simple_list_item_1, null,
            new String[] { TDAdb.COL_RULETITLE },
            new int[] { android.R.id.text1 }, 0);
    setListAdapter(adapter);

    getLoaderManager().initLoader(0, null, this);

    parseIntent(getIntent());


    SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
    SearchableInfo searchableInfo = searchManager
            .getSearchableInfo(getComponentName());

    Log.i(TAG, "onCreate at end");

}

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    Log.i(TAG, "onNewIntent");
    parseIntent(getIntent());
}

private void parseIntent(Intent intent) {

    Log.i(TAG, "parseIntent");

    if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
        String searchQuery = intent.getStringExtra(SearchManager.QUERY);
        // Perform the search
        performSearch(searchQuery);
    }
}

private void performSearch(String query) {
    Log.i(TAG, "performSearch");
    Bundle args = new Bundle();
    args.putString(QUERY_EXTRA_KEY, query);

    getLoaderManager().restartLoader(0, args, this);
}

public Loader<Cursor> onCreateLoader(int id, Bundle args) {
    String query = "0";
    Log.i(TAG, "onCreateLoader");
    if (args != null)
        query = args.getString(QUERY_EXTRA_KEY);

    String[] projection = { TDAdb.KEY_ROWID, TDAdb.COL_RULETITLE };
    String where = TDAdb.COL_RULETITLE + " LIKE \"%" + query + "%\"";

    String[] whereArgs = null;
    String sortOrder = TDAdb.COL_RULETITLE;

    return new CursorLoader(this, TDAProvider.CONTENT_URI_RULES,
            projection, where, whereArgs, sortOrder);
}

public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {

    adapter.swapCursor(cursor);
    adapter.notifyDataSetChanged();

    Log.i(TAG, "onLoadFinished ... cursor has " + cursor.getCount()
            + " row(s)");
                + " row(s)", Toast.LENGTH_SHORT).show();
}

public void onLoaderReset(Loader<Cursor> loader) {
    Log.i(TAG, "onLoaderReset");
    adapter.swapCursor(null);
}

/**
 * Listing 8-28: Providing actions for search result selection
 */
@Override
protected void onListItemClick(ListView listView, View view, int position,
        long id) {
    super.onListItemClick(listView, view, position, id);

    Log.i(TAG, "onListItemClick");

    Uri selectedUri = ContentUris.withAppendedId(
            TDAProvider.CONTENT_URI_RULES, id);

    Intent i = new Intent(ActivitySearch.this, ActivityRulesCrossRef.class);
    Bundle extras = new Bundle();
    extras.putString("XRef", "N");
    String str_rowid = String.valueOf(id);
    extras.putString("selectedID", str_rowid);
    extras.putString("selectedRule", "Search");
    i.putExtras(extras);
    startActivity(i);
    finish();

}

public void onDismiss(final DialogInterface arg0) {
    finish();
}

}
person Peter Birdsall    schedule 20.07.2013