[안드로이드] 로그 SQLite 테이블 추가 및 Fragment 메뉴 추가

eunja511005 commented 7 months ago

테이블 추가

package com.example.freepoc.database;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

public class DatabaseHelper extends SQLiteOpenHelper {
    private static final String DATABASE_NAME = "LogDatabase";
    private static final int DATABASE_VERSION = 1;

    // 테이블 생성 쿼리
    private static final String CREATE_LOGINFO_TABLE =
            "CREATE TABLE LogInfo (id INTEGER PRIMARY KEY AUTOINCREMENT, message TEXT, timestamp DATETIME DEFAULT CURRENT_TIMESTAMP);";

    public DatabaseHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        // LogInfo 테이블 생성
        db.execSQL(CREATE_LOGINFO_TABLE);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // 데이터베이스 버전 업그레이드 시 필요한 작업 수행
        // (예: 기존 테이블 삭제, 새로운 테이블 생성 등)
    }
}

package com.example.freepoc.database;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;

import java.util.ArrayList;
import java.util.List;

public class LogDataManager {
    private DatabaseHelper dbHelper;
    private SQLiteDatabase database;

    public LogDataManager(Context context) {
        dbHelper = new DatabaseHelper(context);
    }

    // 데이터베이스 열기
    public void open() throws SQLException {
        database = dbHelper.getWritableDatabase();
    }

    // 데이터베이스 닫기
    public void close() {
        dbHelper.close();
    }

    // 로그 추가
    public long addLog(String message) {
        ContentValues values = new ContentValues();
        values.put("message", message);

        return database.insert("LogInfo", null, values);
    }

    // 모든 로그 조회
    public List<LogInfo> getAllLogs() {
        List<LogInfo> logList = new ArrayList<>();

        String[] projection = {"id", "message", "timestamp"};
        Cursor cursor = database.query("LogInfo", projection, null, null, null, null, null);

        if (cursor != null) {
            int idColumnIndex = cursor.getColumnIndex("id");
            int messageColumnIndex = cursor.getColumnIndex("message");
            int timestampColumnIndex = cursor.getColumnIndex("timestamp");

            while (cursor.moveToNext()) {
                if (idColumnIndex != -1 && messageColumnIndex != -1 && timestampColumnIndex != -1) {
                    int logId = cursor.getInt(idColumnIndex);
                    String logMessage = cursor.getString(messageColumnIndex);
                    String logTimestamp = cursor.getString(timestampColumnIndex);

                    LogInfo logInfo = new LogInfo(logId, logMessage, logTimestamp);
                    logList.add(logInfo);
                }
            }

            cursor.close();
        }

        return logList;
    }
}

eunja511005 commented 7 months ago