Basit İmleç Bağdaştırıcısı ve Liste Görünümü

Question

Ana etkinliğimdeki tüm girdileri veritabanından göstermesi gereken bir Liste görünümüm var. Basit bir imleç bağdaştırıcısı kullanıyorum ama android uygulama olarak çalıştırdığımda çöküyor. Uygulama durduruldu ve bitti. Yanlış bir şey oluyor. Çökme

03-27 00:23:50.555: E/cm value(1589): false 
03-27 00:23:59.643: E/AndroidRuntime(1589): FATAL EXCEPTION: main 
03-27 00:23:59.643: E/AndroidRuntime(1589): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ec.idiomas/com.ec.idiomas.BancoDictionary}: java.lang.IllegalArgumentException: selectionArgs must be provided for the Uri: content://com.ec.idiomas.searchabledict.DictionaryProvider/dictionary 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.app.ActivityThread.access$600(ActivityThread.java:130) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.os.Handler.dispatchMessage(Handler.java:99) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.os.Looper.loop(Looper.java:137) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.app.ActivityThread.main(ActivityThread.java:4745) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at java.lang.reflect.Method.invokeNative(Native Method) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at java.lang.reflect.Method.invoke(Method.java:511) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at dalvik.system.NativeStart.main(Native Method) 
03-27 00:23:59.643: E/AndroidRuntime(1589): Caused by: java.lang.IllegalArgumentException: selectionArgs must be provided for the Uri: content://com.ec.idiomas.searchabledict.DictionaryProvider/dictionary 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at com.ec.idiomas.DictionaryProvider.query(DictionaryProvider.java:62) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.content.ContentProvider.query(ContentProvider.java:652) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.content.ContentProvider$Transport.query(ContentProvider.java:189) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.content.ContentResolver.query(ContentResolver.java:370) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.content.ContentResolver.query(ContentResolver.java:313) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at com.ec.idiomas.BancoDictionary.onCreate(BancoDictionary.java:107) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.app.Activity.performCreate(Activity.java:5008) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023) 
03-27 00:23:59.643: E/AndroidRuntime(1589):  ... 11 more 

ait

İz My Ana Aktivite

public class BancoDictionary extends ListActivity { 

public static final String PREFS_NAME = "MyPrefsFile1"; 


ListView mListView; 




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

setContentView(R.layout.main); 


mListView = (ListView) findViewById(R.id.list); 





Cursor cursor = getContentResolver().query(DictionaryProvider.CONTENT_URI, new String[] {DictionaryDatabase.KEY_WORD, DictionaryDatabase.KEY_DEFINITION}, null, null, null); 
startManagingCursor(cursor); 


String[] columns = new String[] { DictionaryDatabase.KEY_WORD, DictionaryDatabase.KEY_DEFINITION }; 

int[] to = new int[] { R.id.word, R.id.definition }; 


SimpleCursorAdapter mAdapter = new SimpleCursorAdapter(this, R.layout.list_item, cursor, columns, to); 





mListView.setListAdapter(mAdapter); 
mListView.setOnItemClickListener(new OnItemClickListener() { 

@Override 
public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
Intent wordIntent = new Intent(getApplicationContext(), WordActivity.class); 
Uri data = Uri.withAppendedPath(DictionaryProvider.CONTENT_URI, 
          String.valueOf(id)); 


wordIntent.setData(data); 
wordIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
wordIntent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION); 
startActivity(wordIntent); 

} 


}); 

} 

} 

DictionaryProvider

public class DictionaryProvider extends ContentProvider { 
String TAG = "DictionaryProvider"; 

public static String AUTHORITY = "com.ec.idiomas.searchabledict.DictionaryProvider"; 
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/dictionary"); 

public static final String WORDS_MIME_TYPE = ContentResolver.CURSOR_DIR_BASE_TYPE + 
               "/vnd.ec.idiomas.searchabledict"; 
public static final String DEFINITION_MIME_TYPE = ContentResolver.CURSOR_ITEM_BASE_TYPE + 
                "/vnd.eci.idiomas.searchabledict"; 

private DictionaryDatabase mDictionary; 

private static final int SEARCH_WORDS = 0; 
private static final int GET_WORD = 1; 
private static final int SEARCH_SUGGEST = 2; 
private static final int REFRESH_SHORTCUT = 3; 
private static final UriMatcher sURIMatcher = buildUriMatcher(); 

private static UriMatcher buildUriMatcher() { 
    UriMatcher matcher = new UriMatcher(UriMatcher.NO_MATCH); 
    matcher.addURI(AUTHORITY, "dictionary", SEARCH_WORDS); 
    matcher.addURI(AUTHORITY, "dictionary/#", GET_WORD); 
    matcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, SEARCH_SUGGEST); 
    matcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", SEARCH_SUGGEST); 

    matcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_SHORTCUT, REFRESH_SHORTCUT); 
    matcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_SHORTCUT + "/*", REFRESH_SHORTCUT); 
    return matcher; 
} 

@Override 
public boolean onCreate() { 
    mDictionary = new DictionaryDatabase(getContext()); 
    return true; 
} 

@Override 
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, 
        String sortOrder) { 

    switch (sURIMatcher.match(uri)) { 
     case SEARCH_SUGGEST: 
      if (selectionArgs == null) { 
       throw new IllegalArgumentException(
        "selectionArgs must be provided for the Uri: " + uri); 
      } 
      return getSuggestions(selectionArgs[0]); 
     case SEARCH_WORDS: 
      if (selectionArgs == null) { 
       throw new IllegalArgumentException(
        "selectionArgs must be provided for the Uri: " + uri); 
      } 
      return search(selectionArgs[0]); 
     case GET_WORD: 
      return getWord(uri); 
     case REFRESH_SHORTCUT: 
      return refreshShortcut(uri); 
     default: 
      throw new IllegalArgumentException("Unknown Uri: " + uri); 
    } 
} 

private Cursor getSuggestions(String query) { 
    query = query.toLowerCase(); 
    String[] columns = new String[] { 
     BaseColumns._ID, 
     DictionaryDatabase.KEY_WORD, 

     SearchManager.SUGGEST_COLUMN_INTENT_DATA_ID}; 

    return mDictionary.getWordMatches(query, columns); 
} 

private Cursor search(String query) { 
    query = query.toLowerCase(); 
    String[] columns = new String[] { 
     BaseColumns._ID, 
     DictionaryDatabase.KEY_WORD, 
     DictionaryDatabase.KEY_DEFINITION}; 

    return mDictionary.getWordMatches(query, columns); 
} 

private Cursor getWord(Uri uri) { 
    String rowId = uri.getLastPathSegment(); 
    String[] columns = new String[] { 
     DictionaryDatabase.KEY_WORD, 
     DictionaryDatabase.KEY_DEFINITION}; 

    return mDictionary.getWord(rowId, columns); 
} 

private Cursor refreshShortcut(Uri uri) { 

    String rowId = uri.getLastPathSegment(); 
    String[] columns = new String[] { 
     BaseColumns._ID, 
     DictionaryDatabase.KEY_WORD, 
     DictionaryDatabase.KEY_DEFINITION, 
     SearchManager.SUGGEST_COLUMN_SHORTCUT_ID, 
     SearchManager.SUGGEST_COLUMN_INTENT_DATA_ID}; 

    return mDictionary.getWord(rowId, columns); 
} 

@Override 
public String getType(Uri uri) { 
    switch (sURIMatcher.match(uri)) { 
     case SEARCH_WORDS: 
      return WORDS_MIME_TYPE; 
     case GET_WORD: 
      return DEFINITION_MIME_TYPE; 
     case SEARCH_SUGGEST: 
      return SearchManager.SUGGEST_MIME_TYPE; 
     case REFRESH_SHORTCUT: 
      return SearchManager.SHORTCUT_MIME_TYPE; 
     default: 
      throw new IllegalArgumentException("Unknown URL " + uri); 
    } 
} 

@Override 
public Uri insert(Uri uri, ContentValues values) { 
    throw new UnsupportedOperationException(); 
} 

@Override 
public int delete(Uri uri, String selection, String[] selectionArgs) { 
    throw new UnsupportedOperationException(); 
} 

@Override 
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { 
    throw new UnsupportedOperationException(); 
} 

}

Answer 1

hata mesajı her şeyi söylüyor:

java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list' 

belgelerine bakınız:

ListActivity ekranın ortasında tek, tam ekran listeden oluşan bir varsayılan düzeni vardır. Bununla birlikte, arzu ederseniz, , kendi düzen düzeniniz 'u onCreate() öğesinde setContentView() ile ayarlayarak ekran düzenini özelleştirebilirsiniz. Bunu yapmak için, kendi bakış MUTLAKA kimliğe sahip bir ListView nesnesi "@android: id/liste" içeren (bu kodda var eğer veya listeyi)

Sen birine uyacak şekilde ListView değiştirmek zorunda kalacak ListActivity için gereksinimleri.

Answer 2

Günlük şöyle diyor: Etkinlik başlatılamıyor ComponentInfo {com.ec.idiomas/com.ec.idiomas.BancoDictionary}: java.lang.RuntimeException: İçeriğinizin id niteliği "android" olan bir ListView olmalıdır. R.id.list' sizin sorunların kaynağı 'neden olduğu: Uri için java.lang.IllegalArgumentException: selectionArgs must be provided: içerik: //com.ec.idiomas.searchabledict.DictionaryProvider/dictionary' gibi görünüyor

Answer 3

.

Sorununuzu çözmek için selectionArgs ayarlamalısınız.