我正在努力解决这个问题并没有找到任何解决方案浏览网页和StackOverflow中的许多其他类似帖子
在应用程序中搜索后没有错误编译没有在ListView中可见的视图（浏览ListView和CustomAdapter对象，结果项视图存在，但未显示在应用程序的列表视图中）
这里是代码：
// C
#include <stdint.h>
// C++
#include <cstdint>
#if INTPTR_MAX == INT64_MAX
// 64-bit
#elif INTPTR_MAX == INT32_MAX
// 32-bit
#else
#error Unknown pointer size or missing size macros!
#endif
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.lightelements.carddroid">
<permission android:name="com.lightelements.carddroid.cards.provider.READWRITE"/>
<uses-permission android:name="com.lightelements.carddroid.cards.provider.READWRITE"/>
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data
android:name="android.app.default_searchable"
android:value=".SearchableActivity" />
</activity>
<activity android:name=".SearchActivity"
android:parentActivityName=".MainActivity"
android:label="@string/search_cards_title">
</activity>
<activity android:name=".SearchableActivity">
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable"
android:resource="@xml/searchable"/>
</activity>
<provider
android:authorities="com.lightelements.carddroid.cards.provider"
android:name="com.lightelements.carddroid.CardProvider"
android:exported="true"
android:readPermission="com.lightelements.carddroid.cards.provider.READWRITE"
android:writePermission="com.lightelements.carddroid.cards.provider.READWRITE"
/>
</application>
</manifest>
<?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" >
</searchable>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="10dp"
android:orientation="vertical"
android:padding="16dp">
<TextView
android:id="@+id/searchLayoutTestText"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<ListView android:id="@+id/searchResultsList"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</ListView>
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/card_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="@dimen/card_name"
/>
</LinearLayout>
package com.lightelements.carddroid;
import android.app.SearchManager;
import android.content.ContentResolver;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.ListView;
import android.widget.TextView;
import java.util.List;
/**
* Created by User on 20/09/2015.
*/
public class SearchableActivity extends AppCompatActivity implements LoaderManager.LoaderCallbacks<List<Card>> {
private static final String LOG_TAG = SearchableActivity.class.getSimpleName();
private CardsCustomAdapter mCardsCustomAdapter;
private static int LOADER_ID = 2;
private ContentResolver mContentResolver;
private List<Card> cardsRetrieved;
private ListView listView;
private String matchText;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(LOG_TAG, "Entered Searchable Activity");
setContentView(R.layout.search_layout);
TextView testText = (TextView) findViewById(R.id.searchLayoutTestText);
testText.setText("OK SEARCHLIST LAYOUT");
Intent intent = getIntent();
// ACTION SEARCH PER CONFERMA SELEZIONE //
if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
String query = intent.getStringExtra(SearchManager.QUERY);
Log.v(LOG_TAG,"query: " + query);
mContentResolver = getContentResolver();
mCardsCustomAdapter = new CardsCustomAdapter(SearchableActivity.this, getSupportFragmentManager());
listView = (ListView) findViewById(R.id.searchResultsList);
listView.setAdapter(mCardsCustomAdapter);
matchText = query.toString();
getSupportLoaderManager().initLoader(LOADER_ID++, null, SearchableActivity.this);
}
}
@Override
public Loader<List<Card>> onCreateLoader(int id, Bundle args) {
return new CardsSearchListLoader(SearchableActivity.this, CardContract.URI_TABLE, this.mContentResolver, matchText);
}
@Override
public void onLoadFinished(Loader<List<Card>> loader, List<Card> cards) {
mCardsCustomAdapter.setData(cards);
this.cardsRetrieved = cards;
}
@Override
public void onLoaderReset(Loader<List<Card>> loader) {
mCardsCustomAdapter.setData(null);
}
}
package com.lightelements.carddroid;
import android.app.Activity;
import android.app.SearchManager;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.BaseColumns;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.view.MenuItemCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.SearchView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity
implements NavigationDrawerFragment.NavigationDrawerCallbacks,
BestPrice.OnFragmentInteractionListener {
private static final String LOG_TAG = MainActivity.class.getSimpleName();
private NavigationDrawerFragment mNavigationDrawerFragment;
TextView mData = null;
Fragment activeFragment = null;
LinearLayout activeLayout = null;
private CharSequence mTitle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mNavigationDrawerFragment = (NavigationDrawerFragment)
getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
// Set up the drawer
mNavigationDrawerFragment.setUp(
R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
// Connect to Database
String[] projection = {BaseColumns._ID,
CardContract.CardColumns.CARD_NAME,
CardContract.CardColumns.CARD_SET,
CardContract.CardColumns.SET_CODE,
CardContract.CardColumns.MULTIVERSE_ID,
CardContract.CardColumns.MKM_ID
};
ContentResolver mContentResolver = getContentResolver();
Cursor mTestCursor = mContentResolver.query(CardContract.URI_TABLE, projection, null, null, null);
Log.d(LOG_TAG,"Completato on Create.");
if (mTestCursor.moveToFirst()) {
String card_name = mTestCursor.getString(mTestCursor.getColumnIndex(CardContract.CardColumns.CARD_NAME));
TextView testView = (TextView) findViewById(R.id.testTextView);
testView.setText(card_name);
}
}
@Override
public void onNavigationDrawerItemSelected(int position) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, PlaceholderFragment.newInstance(position + 1))
.commit();
}
public void onSectionAttached(int number) {
Fragment fragment = null;
switch (number) {
case 1:
mTitle = getString(R.string.title_section1);
fragment = BestPrice.newInstance("param1", "param2");
break;
case 2:
mTitle = "TEST SEZIONE 2";
fragment = PlaceholderFragment.newInstance(number + 1);
break;
case 3:
mTitle = getString(R.string.title_section3);
fragment = PlaceholderFragment.newInstance(number + 1);
break;
}
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, fragment)
.commit();
}
public void onFragmentInteraction(Uri uri){
}
public void dataSearch(View view){
Activity fragment = (Activity) view.getContext();
mData = (TextView) fragment.findViewById(R.id.best_price_data);
activeLayout = (LinearLayout) findViewById(R.id.fragment_best_price_layout);
}
public void dataOut(String outData){
mData.setText(outData);
}
public void restoreActionBar() {
ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setTitle(mTitle);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
getMenuInflater().inflate(R.menu.main, menu);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
MenuItem searchItem = menu.findItem(R.id.searchCards);
SearchView cardSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);
cardSearchView.setSearchableInfo(searchManager.getSearchableInfo(new ComponentName(this, SearchableActivity.class)));
Log.d(LOG_TAG,"Searchable created");
restoreActionBar();
return true;
}
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public static class PlaceholderFragment extends Fragment {
private static final String ARG_SECTION_NUMBER = "section_number";
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MainActivity) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
}
}
package com.lightelements.carddroid;
import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.provider.BaseColumns;
import android.support.v4.content.AsyncTaskLoader;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
/**
* Created by User on 06/09/2015.
*/
public class CardsSearchListLoader extends AsyncTaskLoader<List<Card>> {
private static final String LOG_TAG = CardsSearchListLoader.class.getSimpleName();
private List<Card> mCards;
private ContentResolver mContentResolver;
private Cursor mCursor;
private String mFilterText;
public CardsSearchListLoader(Context context, Uri uri, ContentResolver contentResolver, String filterText){
super(context);
mContentResolver = contentResolver;
mFilterText = filterText;
}
@Override
public List<Card> loadInBackground() {
String[] projection = {BaseColumns._ID,
CardContract.CardColumns.CARD_NAME,
CardContract.CardColumns.CARD_SET,
CardContract.CardColumns.SET_CODE,
CardContract.CardColumns.MULTIVERSE_ID,
CardContract.CardColumns.MKM_ID
};
List<Card> entries = new ArrayList<Card>();
String selection = CardContract.CardColumns.CARD_NAME + " LIKE '%" + mFilterText + "%'";
mCursor = mContentResolver.query(CardContract.URI_TABLE, projection, selection, null, null);
if (mCursor!=null) {
if (mCursor.moveToFirst()) {
do {
int _id = mCursor.getInt(mCursor.getColumnIndex(BaseColumns._ID));
String card_name = mCursor.getString(mCursor.getColumnIndex(CardContract.CardColumns.CARD_NAME));
int card_set = mCursor.getInt(mCursor.getColumnIndex(CardContract.CardColumns.CARD_SET));
String set_code = mCursor.getString(mCursor.getColumnIndex(CardContract.CardColumns.SET_CODE));
int multiverse_id = mCursor.getInt(mCursor.getColumnIndex(CardContract.CardColumns.MULTIVERSE_ID));
int mkm_id = mCursor.getInt(mCursor.getColumnIndex(CardContract.CardColumns.MKM_ID));
Card card = new Card(_id, card_name, card_set, set_code, multiverse_id, mkm_id);
entries.add(card);
} while (mCursor.moveToNext());
}
}
return entries;
}
@Override
public void deliverResult(List<Card> cards) {
if (isReset()){
if (cards!=null){
mCursor.close();
}
}
Log.d(LOG_TAG,"deliverResult");
List<Card> oldCardList = mCards;
if (mCards == null || mCards.size() == 0) {
Log.d(LOG_TAG, "++++++++++++++ No Ddata returned");
}
mCards = cards;
if (isStarted()) {
super.deliverResult(cards);
}
if (oldCardList != null || oldCardList != cards) {
mCursor.close();
}
}
@Override
protected void onStartLoading() {
if (mCards != null) {
deliverResult(mCards);
}
if (takeContentChanged() || mCards == null) {
forceLoad();
}
}
@Override
protected void onStopLoading() {
cancelLoad();
}
@Override
protected void onReset() {
onStopLoading();
if (mCursor != null) {
mCursor.close();
}
mCards = null;
}
@Override
public void onCanceled(List<Card> cards) {
super.onCanceled(cards);
if (mCursor != null) {
mCursor.close();
}
}
@Override
public void forceLoad() {
super.forceLoad();
}
}
答案 0 :(得分：0)
您的搜索布局高度应该反转：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="10dp"
android:orientation="vertical"
android:padding="16dp">
<TextView
android:id="@+id/searchLayoutTestText"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<ListView android:id="@+id/searchResultsList"
android:layout_width="match_parent"
android:layout_height="match_parent">
</ListView>
</LinearLayout>