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OneFragment.javaのinp（データベースからデータを取得するために使用される）関数を呼び出すと、すべてのデータがキャッチされ、dbそれをつかんで、リストビューに追加すると、挿入をうまくいけば、それを取得しようとするとエラーが出ます。これは、dbクローズの問題ですか？またはコンテキストを渡すと？ IAM新しいこの DatabaseHelper.javaandroid.database.sqlite.SQLiteOpenHelper.getDatabaseLocked（フラグメントを使用）
package info.androidhive.UcCollegeNotifier;
/**
* Created by Extreme on 4/15/2017.
*/
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import java.util.ArrayList;
import java.util.List;
import android.util.Log;
public class DatabaseHandler extends SQLiteOpenHelper {
// All Static variables
// Database Version
private static final int DATABASE_VERSION = 1;
// Database Name
private static final String DATABASE_NAME = "contactsManager";
// Contacts table name
private static final String TABLE_CONTACTS = "contacts";
// Contacts Table Columns names
private static final String KEY_ID = "id";
private static final String KEY_DATE = "date";
private static final String KEY_TIME = "time";
private static final String KEY_NEWS = "news";
private static final String KEY_VALID = "valid";
public DatabaseHandler(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
//context.deleteDatabase(DATABASE_NAME);
}
// Creating Tables
@Override
public void onCreate(SQLiteDatabase db) {
//String CREATE_CONTACTS_TABLE = "CREATE TABLE " + TABLE_CONTACTS + "(" + KEY_ID + " INTEGER PRIMARY KEY," + KEY_DATE + " TEXT,"+KEY_TIME +"TEXT," + KEY_NEWS +"TEXT," + KEY_VALID + " TEXT)";
// db.execSQL("CREATE TABLE contacts1(id INTEGER AUTOINCREMENT, date VARCHAR,time VARCHAR,news VARCHAR);");
Log.d("Creadeted","DB Creadeted");
String CREATE_CONTACTS_TABLE = "CREATE TABLE " + TABLE_CONTACTS + "("
+ KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + KEY_DATE + " TEXT,"
+ KEY_TIME + " TEXT," + KEY_NEWS + " TEXT,"+ KEY_VALID+ " TEXT"+")";
db.execSQL(CREATE_CONTACTS_TABLE);
//
// db.execSQL(
// "create table contacts1 " +
// "(id integer primary key, date text,time text,news text, valid text)"
// );
}
// Upgrading database
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// Drop older table if existed
db.execSQL("DROP TABLE IF EXISTS " + TABLE_CONTACTS);
// Create tables again
onCreate(db);
}
/**
* All CRUD(Create, Read, Update, Delete) Operations
*/
// Adding new contact
public void addContact(String id,String date,String time,String news,String valid) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
// values.put(KEY_ID,id); // Contact Name
values.put(KEY_DATE,date); // Contact Phone
values.put(KEY_TIME,time); // Contact Phone
values.put(KEY_NEWS,news);
db.insert(TABLE_CONTACTS, null, values);
//values.put(KEY_VALID,valid);
//Log.d("Insering",id);
Log.d("Insering",date);
Log.d("Insering",time);
Log.d("Insering",news);
// Log.d("Insering",valid);
// Inserting Row
db.close(); // Closing database connection
}
// Getting single contact
// Contact getContact(int id) {
// SQLiteDatabase db = this.getReadableDatabase();
//
// Cursor cursor = db.query(TABLE_CONTACTS, new String[] { KEY_ID,
// KEY_DATE, KEY_TIME,KEY_NEWS,KEY_VALID }, KEY_ID + "=?",
// new String[] { String.valueOf(id) }, null, null, null, null);
// if (cursor != null)
// cursor.moveToFirst();
//
//// Contact contact = new Contact(Integer.parseInt(cursor.getString(0)),
//// cursor.getString(1), cursor.getString(2));
// // return contact
// return contact;
// }
// Getting All Contacts
public List<Contact> getAllContacts() {
List<Contact> contactList = new ArrayList<Contact>();
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE_CONTACTS;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Contact contact = new Contact();
contact.setID((Integer.parseInt(cursor.getString(0))));
contact.setDate(cursor.getString(1));
contact.setTime(cursor.getString(2));
contact.setNews(cursor.getString(3));
// Adding contact to list
contactList.add(contact);
} while (cursor.moveToNext());
}
// return contact list
return contactList;
}
// Updating single contact
// public int updateContact(Contact contact) {
// SQLiteDatabase db = this.getWritableDatabase();
//
// ContentValues values = new ContentValues();
// values.put(KEY_NAME, contact.getName());
// values.put(KEY_PH_NO, contact.getPhoneNumber());
//
// // updating row
// return db.update(TABLE_CONTACTS, values, KEY_ID + " = ?",
// new String[] { String.valueOf(contact.getID()) });
// }
// Deleting single contact
public void deleteContact(Contact contact) {
SQLiteDatabase db = this.getWritableDatabase();
db.delete(TABLE_CONTACTS, KEY_ID + " = ?",
new String[] { String.valueOf(contact.getID()) });
db.close();
}
// Getting contacts Count
public int getContactsCount() {
String countQuery = "SELECT * FROM " + TABLE_CONTACTS;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(countQuery, null);
cursor.close();
// return count
return cursor.getCount();
}
}
OneFragment.java
public class OneFragment extends Fragment {
public static boolean flagt;
public static String[] ids;
public static String[] date;
public static String[] time;
public static String[] news;
public static String[] valid;
public static String log;
public static String strArray[]={"Hello there","hi"};
//=new String[10];
ArrayList<String> listItems=new ArrayList<String>();
//private ListView mainListView ;
ArrayAdapter<String> adapter;
List<Map<String,List<String>>> list = new ArrayList<Map<String,List<String>>>();//This is the final list you need
Map<String, List<String>> map1 = new HashMap<String, List<String>>();//This is one instance of the map you want to store in the above map
List<String> arraylist1 = new ArrayList<String>();
// List<Map<String, String>> data = new ArrayList<Map<String, String>>();
//String ts;
boolean ts;
private ProgressDialog loading;
DatabaseHandler db=new DatabaseHandler(getActivity());
public OneFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// getda();
//getData();
ts=MainActivity.chek();
if(ts) {
Toast.makeText(getActivity(),"Loggin found",Toast.LENGTH_SHORT).show();
getData();
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view=inflater.inflate(R.layout.fragment_one, container, false);
//ArrayAdapter<String> ListViewAdapter =new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,ids);
// ts=MainActivity.chek();
// if(ts) {
// Toast.makeText(getActivity(),"Loggin found",Toast.LENGTH_SHORT).show();
// getData();
// }
// Inflate the layout for this fragment
// return inflater.inflate(R.layout.fragment_one, container, false);
//Toast.makeText(getActivity(),"e,lladasd",Toast.LENGTH_SHORT).show();
// ListView ls=(ListView)view.findViewById(R.id.lis1);
// ListViewAdapter =new ArrayAdapter<>(getActivity(),android.R.layout.simple_list_item_1,strArray);
// ls.setAdapter(ListViewAdapter);
ListView ls=(ListView)view.findViewById(R.id.list);
adapter=new ArrayAdapter<String>(getActivity(),
android.R.layout.simple_list_item_1,
arraylist1);
ls.setAdapter(adapter);
return view;
}
public class Config {
public static final String DATA_URL = "http://kambi.appsmash.in/kuntham.php";
public static final String k_date12 = "id";
public static final String k_first = "date";
public static final String k_second = "time";
public static final String k_third = "news";
public static final String k_compli = "valid";
public static final String JSON_ARRAY = "result";
}
private void getData() {
//String id = editTextId.getText().toString().trim();
//if (id.equals("")) {
//Toast.makeText(this, "Please enter an id", Toast.LENGTH_LONG).show();
//return;
Toast.makeText(getActivity(), "e,lladasd", Toast.LENGTH_SHORT).show();
String url = Config.DATA_URL;
StringRequest stringRequest = new StringRequest("http://disapp.000webhostapp.com/ucgrab.php/ucgrab.php", new Response.Listener<String>() {
@Override
public void onResponse(String response) {
showJSON(response);
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getActivity(), error.getMessage().toString(), Toast.LENGTH_LONG).show();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(stringRequest);
}
private void showJSON(String response) {
//ParseJSON pj=new ParseJSON(json)
//pj.parseJSON();
// String date123 = "";
// String first1 = "";
// String second2 = "";
// String third3 = "";
// String compli4 = "";
try {
JSONObject jsonObject = new JSONObject(response);
JSONArray result = jsonObject.getJSONArray(Config.JSON_ARRAY);
JSONObject collegeData = result.getJSONObject(0);
// date123 = collegeData.getString(Config.k_date12);
// first1 = collegeData.getString(Config.k_first);
// second2 = collegeData.getString(Config.k_second);
// third3 = collegeData.getString(Config.k_third);
// compli4 = collegeData.getString(Config.k_compli);
ids= new String[result.length()];
date= new String[result.length()];
time= new String[result.length()];
news= new String[result.length()];
valid= new String[result.length()];
for(int i=0;i<result.length();i++) {
JSONObject jo = result.getJSONObject(i);
ids[i] = jo.getString("id");
date[i] = jo.getString("date");
time[i] = jo.getString("time");
news[i] = jo.getString("news");
valid[i] = jo.getString("valid");
//Used to show data get from server
// Toast.makeText(getActivity(), ids[i].toString(), Toast.LENGTH_SHORT).show();
// Toast.makeText(getActivity(), date[i].toString(), Toast.LENGTH_SHORT).show();
// Toast.makeText(getActivity(), time[i].toString(), Toast.LENGTH_SHORT).show();
// Toast.makeText(getActivity(), news[i].toString(), Toast.LENGTH_SHORT).show();
// Toast.makeText(getActivity(), valid[i].toString(), Toast.LENGTH_SHORT).show();
DatabaseHandler db = new DatabaseHandler(getActivity());
db.addContact(ids[i], date[i], time[i], news[i], valid[i]);
//if()
//{
// flagt=true;
//}
// }
// if(flagt==true)
// {
// inp();
}
//Log.d("Reading: ","Reading all contacts..");
// List<Contact> contacts = db.getAllContacts();
//
// for (Contact cn : contacts) {
// log = "Date: " + cn.getDate() + "Time: " + cn.getTime()+"Notification"+cn.getNews()+";";
// // Writing Contacts to log
// getda(log);
// Log.d("Name: ", log);
//// ArrayList<String> planetList = new ArrayList<String>();
//// planetList.addAll(Arrays.asList(log));
//// listAdapter = new ArrayAdapter<String>(this,R.layout.fragment_one, planetList);
// //ListView ls=(ListView)view.findViewById(R.id.lis1
// //ArrayAdapter<String> ListViewAdapter =new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,ids);
// String strArray[] = log.split(";");
// System.out.println("String Array is : ");
//// for(i=0; i < strArray.length; i++){
//// //System.out.println(strArray[i]);
//// //ListViewAdapter.add("log");
//// // getda(log);
//// }
// }
// Map<String, String> datum = new HashMap<String, String>(2);
// datum.put("First Line", "First line of text");
// datum.put("Second Line","Second line of text");
// listItems.add(datum);
} catch (JSONException e) {
e.printStackTrace();
}
// Toast.makeText(getActivity(), date123, Toast.LENGTH_SHORT).show();
// Toast.makeText(getActivity(), first1, Toast.LENGTH_SHORT).show();
// Toast.makeText(getActivity(), second2, Toast.LENGTH_SHORT).show();
// Toast.makeText(getActivity(), third3, Toast.LENGTH_SHORT).show();
// Toast.makeText(getActivity(), compli4, Toast.LENGTH_SHORT).show();
}
@Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (isVisibleToUser) {
Toast.makeText(getActivity(), "chhosed one", Toast.LENGTH_LONG).show();
// getData();
}
}
//Log.d("Reading: ","Reading all contacts..");
// List<Contact> contacts = db.getAllContacts();
//
// for (Contact cn : contacts) {
// String log = "Id: "+cn.getID()+" ,Name: " + cn.getDate() + " ,Phone: " + cn.getTime()+",NEws"+cn.getNews();
// // Writing Contacts to log
// Log.d("Name: ", log);
// }
public void getda(String log)
{
arraylist1.add(log);//And so on..
map1.put(log,arraylist1);
//And so on...
list.add(map1);//In this way you can add.
//listItems.add(log);
adapter.notifyDataSetChanged();
}
public void inp()
{
List<Contact> contacts = db.getAllContacts();
for (Contact cn : contacts) {
log = "Date: " + cn.getDate() + "Time: " + cn.getTime()+"Notification"+cn.getNews()+";";
// Writing Contacts to log
getda(log);
Log.d("Name: ", log);
// ArrayList<String> planetList = new ArrayList<String>();
// planetList.addAll(Arrays.asList(log));
// listAdapter = new ArrayAdapter<String>(this,R.layout.fragment_one, planetList);
//ListView ls=(ListView)view.findViewById(R.id.lis1
//ArrayAdapter<String> ListViewAdapter =new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,ids);
String strArray[] = log.split(";");
System.out.println("String Array is : ");
// for(i=0; i < strArray.length; i++){
// //System.out.println(strArray[i]);
// //ListViewAdapter.add("log");
// // getda(log);
// }
}
}
}