移动数据库位置

Question

我找不到在我的应用程序中创建的数据库。
我在这里查看了其他类似的问题，我知道这可能是因为我没有 root 权限。
但是，我在 phone.
上找不到实际的应用程序文件夹在模拟器的调试模式下，它在数据中，但我在安装 apk 时在 phone 上看不到它。
当我按下按钮时它没有给出任何错误，所以我假设数据库正在创建和可用。

问题是：有什么方法可以移动创建数据库的位置以便我可以看到它。
还有什么更好的方法可以增加数据库的数量吗？

package com.example.a2618436.customersatsifaction;

/**
 * Created by 2618436 on 06/05/2016.

 */
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.content.Context;
import android.content.ContentValues;
import android.database.Cursor;

public class MyDBHandler extends SQLiteOpenHelper {

    private static final int DATABASE_VERSION = 1;
    private static final String DATABASE_NAME = "SurveyDB.db";
    private static final String  TABLE_SURVEY = "Survey";

    public static final String KEY_ID= "id";
    public static final String KEY_HAPPY = "happy";
    public static final String KEY_SAD = "sad";

    public MyDBHandler(Context context, String name,
                       SQLiteDatabase.CursorFactory factory, int version) {
        super(context, DATABASE_NAME, factory, DATABASE_VERSION);
    }

    public void onCreate(SQLiteDatabase db){
        String CREATE_SURVEY_TABLE = "CREATE TABLE " +
                TABLE_SURVEY + "("
                + KEY_ID + " INTEGER PRIMARY KEY," + KEY_HAPPY
                + " INTEGER," + KEY_SAD + " INTEGER" + ")";
        db.execSQL(CREATE_SURVEY_TABLE);
    }

    //

    public void onUpgrade(SQLiteDatabase db, int oldVersion,
                int newVersion){
        db.execSQL("DROP TABLE IF EXISTS " + TABLE_SURVEY);
        onCreate(db);

    }
    //needs revision
    public void addSurvey(MainActivity mainactivity) {
        SQLiteDatabase db = this.getWritableDatabase();

        ContentValues values = new ContentValues();
        values.put(KEY_HAPPY, mainactivity.getHappy()); // Contact Name
        values.put(KEY_SAD, mainactivity.getSad()); // Contact Phone Number

        // Inserting Row
        db.insert(TABLE_SURVEY, null, values);
        db.close(); // Closing database connection
    }
}

数据库处理程序。

package com.example.a2618436.customersatsifaction;

/**
 * Created by 2618436 on 06/05/2016.

 */
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.content.Context;
import android.content.ContentValues;
import android.database.Cursor;

public class MyDBHandler extends SQLiteOpenHelper {

    private static final int DATABASE_VERSION = 1;
    private static final String DATABASE_NAME = "SurveyDB.db";
    private static final String  TABLE_SURVEY = "Survey";

    public static final String KEY_ID= "id";
    public static final String KEY_HAPPY = "happy";
    public static final String KEY_SAD = "sad";

    public MyDBHandler(Context context, String name,
                       SQLiteDatabase.CursorFactory factory, int version) {
        super(context, DATABASE_NAME, factory, DATABASE_VERSION);
    }

    public void onCreate(SQLiteDatabase db){
        String CREATE_SURVEY_TABLE = "CREATE TABLE " +
                TABLE_SURVEY + "("
                + KEY_ID + " INTEGER PRIMARY KEY," + KEY_HAPPY
                + " INTEGER," + KEY_SAD + " INTEGER" + ")";
        db.execSQL(CREATE_SURVEY_TABLE);
    }

    //

        public void onUpgrade(SQLiteDatabase db, int oldVersion,
                    int newVersion){
            db.execSQL("DROP TABLE IF EXISTS " + TABLE_SURVEY);
            onCreate(db);

        }
        //needs revision
        public void addSurvey(MainActivity mainactivity) {
            SQLiteDatabase db = this.getWritableDatabase();

            ContentValues values = new ContentValues();
            values.put(KEY_HAPPY, mainactivity.getHappy()); // Contact Name
            values.put(KEY_SAD, mainactivity.getSad()); // Contact Phone Number

            // Inserting Row
            db.insert(TABLE_SURVEY, null, values);
            db.close(); // Closing database connection
        }
    }

Answer 1

如果你正在编写数据库操作，你应该有一个root设备或者你可以尝试使用Genymotion（预root）因为this.You可以看到你的db文件/data/data/com.yourpackage.com/databases/yourdb.db。你可以很容易地看到db安装 RootExplorer 应用程序是否有数据。

移动数据库位置

Moving location of a database

database

sqlite

android

android-sqlite