我正在尝试更新表格中特定列的值。我已经设置了ContentProvder。我收到错误，但我不知道如何修复它。我在网上搜索过帮助，似乎没有一个基于unique-id更新。这是我的代码..
@Override
public int update (Uri uri, ContentValues values, String selection,
String[] selectionArgs) {
int uriType = NewsContract.sURI_MATCHER.match(uri);
SQLiteDatabase db = dictionaryHelper.getWritableDatabase();
int rowsUpdated = 0;
String id = null;
switch (uriType)
{case DictionaryContract.RECENT:
rowsUpdated = db.update(DictionaryContract.DictionaryDataContract.RECENT_TABLE_NAME,
values,
selection,
selectionArgs);
break;
case DictionaryContract.RECENT_ID:
id = uri.getLastPathSegment();
if (TextUtils.isEmpty(selection)) {
rowsUpdated = db.update(DictionaryContract.DictionaryDataContract.RECENT_TABLE_NAME,
values,
DictionaryContract.DictionaryDataContract._ID + "=" + id,
null);
} else {
rowsUpdated = db.update(DictionaryContract.DictionaryDataContract.RECENT_TABLE_NAME,
values,
DictionaryContract.DictionaryDataContract._ID + "=" + id
+ " and "
+ selection, selectionArgs);
}
break;
default:
throw new IllegalArgumentException("Unknown URI" + uri);
}
getContext().getContentResolver().notifyChange(uri, null);
return rowsUpdated;
}
这就是我调用ContentProvider：
private boolean UpdateRecentTable()
{
cursor.moveToLast();
Long id = cursor.getLong(cursor.getColumnIndex(DictionaryContract.DictionaryDataContract._ID));
Log.i("Update", " " + id);
String filter = DictionaryContract.DictionaryDataContract._ID + "=" + id;
ContentValues args = new ContentValues();
args.put(DictionaryContract.DictionaryDataContract.REC_FAVORITED, 1);
dResolver.update(DictionaryContract.CONTENT_URI_RECENT, args, filter, null);
return true;
}
错误：
03-21 04:05:36.823 18326-18673/com.example.clinton.light E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #1 Process: com.example.clinton.light, PID: 18326
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:309)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.IllegalArgumentException: Unknown URIcontent://com.example.clinton.light.provider.dictionary/recents
at com.example.clinton.light.database.DictionaryContentProvider.update(DictionaryContentProvider.java:216)
at android.content.ContentProvider$Transport.update(ContentProvider.java:355)
at android.content.ContentResolver.update(ContentResolver.java:1362)
at com.example.clinton.light.dictionary_main.StoreFavWord.UpdateRecentTable(StoreFavWord.java:72)
at com.example.clinton.light.dictionary_main.StoreFavWord.doInBackground(StoreFavWord.java:41)
at com.example.clinton.light.dictionary_main.StoreFavWord.doInBackground(StoreFavWord.java:18)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
03-21 04:05:37.271 18326-18352/com.example.clinton.light E/Surface: getSlotFromBufferLocked: unknown buffer: 0xe0c79230
DataContract
ublic class DictionaryContract {
public DictionaryContract(){}
public static final int TODAY = 100;
public static final int TODAY_ID = 115;
public static final int FAVORITE = 120;
public static final int FAVORITE_ID = 125;
public static final int RECENT = 130;
public static final int RECENT_ID = 135;
private static final String AUTHORITY = "com.example.clinton.light.provider.dictionary";
public static final String TODAY_BASE_PATH = "today";
public static final String FAVORITE_BASE_PATH = "favorites";
public static final String RECENT_BASE_PATH = "recents";
public static final UriMatcher sURI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH);
static {
sURI_MATCHER.addURI(AUTHORITY, TODAY_BASE_PATH, TODAY);
sURI_MATCHER.addURI(AUTHORITY, TODAY_BASE_PATH + "/#", TODAY_ID);
sURI_MATCHER.addURI(AUTHORITY, FAVORITE_BASE_PATH, FAVORITE);
sURI_MATCHER.addURI(AUTHORITY, FAVORITE_BASE_PATH + "/#", FAVORITE_ID);
sURI_MATCHER.addURI(AUTHORITY, RECENT_BASE_PATH, RECENT);
sURI_MATCHER.addURI(AUTHORITY, RECENT_BASE_PATH + "/#", RECENT_ID);
}
public static final Uri CONTENT_URI_TODAY = Uri.parse("content://" + AUTHORITY + "/" + TODAY_BASE_PATH);
public static final Uri CONTENT_URI_FAVORITES = Uri.parse("content://" + AUTHORITY + "/" + FAVORITE_BASE_PATH);
public static final Uri CONTENT_URI_RECENT = Uri.parse("content://" + AUTHORITY + "/" + RECENT_BASE_PATH);
public static abstract class DictionaryDataContract implements BaseColumns
{
public static final String TODAY_TABLE_NAME = "todaytable";
public static final String TODAY_DATE = "worddate";
public static final String WORD = "wordname";
public static final String DEFINITION = "worddefinition";
public static final String SPEECH = "wordspeech";
public static final String ROOT = "wordroot";
public static final String EXAMPLE = "wordexample";
private static final String CREATE_TODAY_TABLE = "create table "+
TODAY_TABLE_NAME +
"(" +
_ID +
" integer primary key autoincrement, " +
TODAY_DATE +
" text not null, " +
WORD +
" text not null, " +
DEFINITION +
" text not null, " +
EXAMPLE +
" text not null, " +
SPEECH +
" text not null, " +
ROOT +
" text not null);";
public static final String FAVORITE_TABLE_NAME = "favoritetable";
public static final String FAV_WORD = "wordname";
public static final String FAV_DEFINITION = "worddefinition";
public static final String FAV_DEFINITION2 = "worddefinition2";
public static final String FAV_SPEECH = "wordspeech";
public static final String FAV_SPEECH2 = "wordspeech2";
public static final String FAV_RELATED = "wordrelated";
public static final String FAV_EXAMPLE = "wordexample";
public static final String RECENT_TABLE_NAME = "recentetable";
public static final String REC_WORD = "wordname";
public static final String REC_DEFINITION = "worddefinition";
public static final String REC_DEFINITION2 = "worddefinition2";
public static final String REC_SPEECH = "wordspeech";
public static final String REC_SPEECH2 = "wordspeech2";
public static final String REC_RELATED = "wordrelated";
public static final String REC_EXAMPLE = "wordexample";
public static final String REC_FAVORITED = "favorited";
private static final String CREATE_FAVORITE_TABLE = "create table "+
FAVORITE_TABLE_NAME +
"(" +
_ID +
" integer primary key autoincrement, " +
FAV_WORD +
" text not null, " +
FAV_DEFINITION +
" text not null, " +
FAV_DEFINITION2 +
" text not null, " +
FAV_EXAMPLE +
" text not null, " +
FAV_SPEECH +
" text not null, " +
FAV_SPEECH2 +
" text not null, " +
FAV_RELATED +
" text not null);";
private static final String CREATE_RECENT_TABLE = "create table "+
RECENT_TABLE_NAME +
"(" +
_ID +
" integer primary key autoincrement, " +
REC_WORD +
" text not null, " +
REC_DEFINITION +
" text not null, " +
REC_DEFINITION2 +
" text not null, " +
REC_EXAMPLE +
" text not null, " +
REC_SPEECH +
" text not null, " +
REC_SPEECH2 +
" text not null, " +
REC_FAVORITED +
" int not null, " +
REC_RELATED +
" text not null);";
public static void onCreate (SQLiteDatabase db) {
db.execSQL(CREATE_TODAY_TABLE);
db.execSQL(CREATE_FAVORITE_TABLE);
db.execSQL(CREATE_RECENT_TABLE);
}
public static void onUpgrade (SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TODAY_TABLE_NAME);
db.execSQL("DROP TABLE IF EXISTS " + FAVORITE_TABLE_NAME);
db.execSQL("DROP TABLE IF EXISTS " + RECENT_TABLE_NAME);
onCreate(db);
}
}
}