这是我第一次使用内容提供程序，但我遵循了开发者文档。当我运行程序时，它告诉我未能找到提供程序信息。
以下是我的清单文件：
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.tyczj.bowling"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="11" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity android:name="Tabs">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="BowlersList"></activity>
</application>
<provider android:name="com.tyczj.bowling.BowlersDB"
android:authorities="com.tyczj.bowling.bowlersdb">
</provider>
</manifest>
还有我的内容提供者。
public class BowlersDB extends ContentProvider {
private static final String DATABASE_NAME = "Bowlers";
private static final String BOWLERS_TABLE = "bowlers_table";
private static final int DATABASE_VERSION = 1;
public static final Uri CONTENT_URI = Uri.parse("content://com.tyczj.bowling.bowlersdb");
private static final UriMatcher uriMatcher;
static final String NAME = "name";
static final String ID = "_id";
private DatabaseHelper DBHelper;
private SQLiteDatabase db;
public Cursor getBowlers(){
return db.query(BOWLERS_TABLE, new String[] {ID,NAME},null,null,null,null,NAME + " ASC");
}
public Cursor getId(String name){
Cursor c = db.query(BOWLERS_TABLE, new String[] {ID,NAME},NAME + "='" + name +"'",null,null,null,null);
if(c != null && c.moveToFirst()){
do{
if(c.getString(c.getColumnIndex(NAME)).equals(name)){
return c;
}
}while(c.moveToNext());
}
return c;
}
private static class DatabaseHelper extends SQLiteOpenHelper
{
DatabaseHelper(Context context)
{
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db)
{
createTables(db);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion,
int newVersion)
{
Log.w("CalendarDB", "Upgrading database from version " + oldVersion
+ " to "
+ newVersion + ", which will destroy all old data");
db.execSQL("DROP TABLE IF EXISTS Events_Table");
onCreate(db);
}
private void createTables(SQLiteDatabase db){
db.execSQL("CREATE TABLE " + BOWLERS_TABLE + "(" + ID + " integer primary key autoincrement, " +
NAME + " TEXT);");
}
}
@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
int count = 0;
int num = uriMatcher.match(uri);
if(num == 1){
count = db.delete(BOWLERS_TABLE, selection,selectionArgs);
}else if(num == 2){
String id = uri.getPathSegments().get(1);
count = db.delete(BOWLERS_TABLE, ID + " = " + id + (!TextUtils.isEmpty(selection) ? " AND (" +
selection + ')' : ""),
selectionArgs);
}
getContext().getContentResolver().notifyChange(uri, null);
return count;
}
@Override
public String getType(Uri uri) {
if(uriMatcher.match(uri) == 1){
return "vnd.android.cursor.dir/vnd.tyczj.bowlersdb ";
}else if(uriMatcher.match(uri) == 2){
return "vdn.android.cursor.item/vnd.tyczj.bowlersdb ";
}else
throw new IllegalArgumentException("Unsupported URI: " + uri);
}
@Override
public Uri insert(Uri uri, ContentValues values) {
long rowID = db.insert(BOWLERS_TABLE,null, values);
if(rowID > 0){
Uri _uri = ContentUris.withAppendedId(CONTENT_URI,rowID);
getContext().getContentResolver().notifyChange(_uri,null);
return _uri;
}else{
throw new SQLException("Failed to insert row into " + uri);
}
}
@Override
public boolean onCreate() {
Context context = getContext();
DBHelper = new DatabaseHelper(context);
db = DBHelper.getWritableDatabase();
return (db == null)? false:true;
}
@Override
public Cursor query(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
SQLiteQueryBuilder sqlBuilder = new SQLiteQueryBuilder();
sqlBuilder.setTables(BOWLERS_TABLE);
if(uriMatcher.match(uri) == 1){
sqlBuilder.appendWhere(ID + " = " + uri.getPathSegments().get(1));
}
if(sortOrder == null || sortOrder == "")
sortOrder = NAME;
Cursor c = sqlBuilder.query(db, projection, selection, selectionArgs,null,null, sortOrder);
c.setNotificationUri(getContext().getContentResolver(), uri);
return c;
}
@Override
public int update(Uri uri, ContentValues values, String selection,
String[] selectionArgs) {
int count = 0;
int num = uriMatcher.match(uri);
if(num == 1){
count = db.update(BOWLERS_TABLE, values, selection, selectionArgs);
}else if(num == 2){
count = db.update(BOWLERS_TABLE, values, ID + " = " + uri.getPathSegments().get(1) + (!TextUtils.isEmpty(selection) ? " AND (" +
selection + ')' : ""),
selectionArgs);
}else{
throw new IllegalArgumentException(
"Unknown URI " + uri);
}
getContext().getContentResolver().notifyChange(uri, null);
return count;
}
static{
uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
uriMatcher.addURI("com.tyczj.bowling.bowlersdb","bowlers",1);
uriMatcher.addURI("com.tyczj.bowling.bowlersdb","bowlers/#",2);
}
}
不确定自己做错了什么？