在Android开发中，使用SQLite嵌入式数据库时，你可以通过创建自定义`ContentProvider`来实现跨应用的数据共享

import android.content.ContentProvider;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
 
public class MyCustomContentProvider extends ContentProvider {
 
    private SQLiteOpenHelper dbHelper;
 
    @Override
    public boolean onCreate() {
        dbHelper = new SQLiteOpenHelper(getContext(), "myDatabase.db", null, 1) {
            @Override
            public void onCreate(SQLiteDatabase db) {
                db.execSQL("CREATE TABLE myTable (_id INTEGER PRIMARY KEY, name TEXT);");
            }
 
            @Override
            public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
                // 更新数据库的逻辑
            }
        };
        return true;
    }
 
    @Override
    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
        SQLiteDatabase db = dbHelper.getReadableDatabase();
        return db.query("myTable", projection, selection, selectionArgs, null, null, sortOrder);
    }
 
    @Override
    public Uri insert(Uri uri, ContentValues values) {
        SQLiteDatabase db = dbHelper.getWritableDatabase();
        long id = db.insert("myTable", null, values);
        return Uri.parse("content://com.example.authority/myTable/" + id);
    }
 
    @Override
    public int delete(Uri uri, String selection, String[] selectionArgs) {
        SQLiteDatabase db = dbHelper.getWritableDatabase();
        return db.delete("myTable", selection, selectionArgs);
    }
 
    @Override
    public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
        SQLiteDatabase db = dbHelper.getWritableDatabase();
        return db.update("myTable", values, selection, selectionArgs);
    }
 
    @Override
    public String getType(Uri uri) {
        // 根据Uri返回MIME类型
        return "vnd.android.cursor.dir/vnd.com.example.myTable";
    }
}

这个示例代码展示了如何创建一个自定义的ContentProvider，它使用SQLite数据库并提供了基本的CRUD操作。在实际的应用中，你需要根据具体的需求来实现这些方法。