Ошибка при открытии файла трассировки: нет такого файла или каталога (2) (1) нет такой таблицы: ContactListTable Проработал в течение часа не может найти решение

Question

Я новичок в android и java. Я попытался проверить свой код на примере, но почему-то приложение принудительно закрывается, пока пример работает отлично. Мне нужна помощь, пожалуйста! Заранее спасибо!

Новый Logcat

07-31 16:51:02.145: E/Trace(16532): error opening trace file: No such file or directory (2) 
07-31 16:51:02.175: D/AndroidRuntime(16532): Shutting down VM 
07-31 16:51:02.180: W/dalvikvm(16532): threadid=1: thread exiting with uncaught exception (group=0x40fdb2a0) 
07-31 16:51:02.180: E/AndroidRuntime(16532): FATAL EXCEPTION: main 
07-31 16:51:02.180: E/AndroidRuntime(16532): java.lang.RuntimeException: Unable to create application com.Elson.ProjectVersion.ContactsActivityApplication: java.lang.NullPointerException 
07-31 16:51:02.180: E/AndroidRuntime(16532): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4254) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at android.app.ActivityThread.access$1400(ActivityThread.java:140) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1297) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at android.os.Handler.dispatchMessage(Handler.java:99) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at android.os.Looper.loop(Looper.java:137) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at android.app.ActivityThread.main(ActivityThread.java:4921) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at java.lang.reflect.Method.invokeNative(Native Method) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at java.lang.reflect.Method.invoke(Method.java:511) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at dalvik.system.NativeStart.main(Native Method) 
07-31 16:51:02.180: E/AndroidRuntime(16532): Caused by: java.lang.NullPointerException 
07-31 16:51:02.180: E/AndroidRuntime(16532): at java.util.Calendar.setTime(Calendar.java:1324) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at java.text.SimpleDateFormat.formatImpl(SimpleDateFormat.java:536) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at java.text.SimpleDateFormat.format(SimpleDateFormat.java:821) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at java.text.DateFormat.format(DateFormat.java:376) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at com.Elson.ProjectVersion.Contacts.toString(Contacts.java:91) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at com.Elson.ProjectVersion.ContactsActivityApplication.readContactsFromDB(ContactsActivityApplication.java:57) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at com.Elson.ProjectVersion.ContactsActivityApplication.onCreate(ContactsActivityApplication.java:26) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1014) 
07-31 16:51:02.180: E/AndroidRuntime(16532): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4251) 
07-31 16:51:02.180: E/AndroidRuntime(16532): ... 10 more 

Contacts.java

package com.Elson.ProjectVersion; 

import android.content.Context; 
import android.database.sqlite.SQLiteDatabase; 
import android.database.sqlite.SQLiteOpenHelper; 
import android.database.sqlite.SQLiteException; 
import android.util.Log; 

public class Contacts implements Comparable<Contacts> { 

    private long id; 
    private String name; 
    private int Phone; 
    private int Email; 
    private Date date; 
    private double runningAverage; 




    public Contacts(String name, int Phone, Date date) { 
     this.name = name; 
     this.Phone = Phone; 
     this.date = date; 
    } 

    public Contacts(long id, String name,int Phone) { 
     this.id=id; 
     this.Phone=Phone; 
     this.name= (name); 

    } 


    public long getId() { 

     return id; 
    } 
    public void setId(long id) { 
     this.id = id; 
    } 

    public int getPhone() { 
     return Phone; 
    } 
    public void setPhone(int Phone) { 
     this.Phone = Phone; 
    } 
    public String getname() { 
     return name; 
    } 
    public void setname(String name) { 
     this.name = name; 
    } 
    public Date getDate() { 
     return date; 
    } 

    public long getDateEpoch(){ 
     return date.getTime()/1000; 
    } 
    public void setDateEpoch(long seconds){ 
     date= new Date (seconds*1000); 
    } 
    public void setDate(Date date) { 
     this.date = date; 
    } 




    public void setRunningAverage(double runningAverage) { 
     this.runningAverage = runningAverage; 
    } 
    public boolean equals(Object that){ 
     Contacts bs = (Contacts) that; 

     return this.date.equals(bs.date); 
     } 


    @Override 



    public String toString() { 
     String result; 

     // "ID" + id +" " 
     DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT); 
     result = df.format(date) + "" + name + "" + Phone ; 



     return result; 
    } 

    @Override 
    public int compareTo(Contacts another) { 
     // TODO Auto-generated method stub 
     return 0; 
    } 

}

ContactsActivityApplication

package com.Elson.ProjectVersion; 

import java.util.ArrayList; 

import android.app.Application; 
import android.content.ContentValues; 
import android.database.Cursor; 
import android.database.sqlite.SQLiteDatabase; 
import android.util.Log; 

import static com.Elson.ProjectVersion.MyContactSQL.*; 

public class EnterContactsActivity extends Activity { 

private Button saveButton; 
private EditText NameEditText; 
private EditText PhoneEditText; 
private Button ExitButton; 
private EditText EmailEditText; 
private TextView date; 

private int month;//private within class 
private int day; 
private int year; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_addcontacts); 

    setUpViews(); 

    Calendar calendar =Calendar.getInstance(); 
    year = calendar.get(Calendar.YEAR); 
    month = calendar.get(Calendar.MONTH); 
    day = calendar.get(Calendar.DAY_OF_MONTH); 

    Date today = calendar.getTime(); 
    DateFormat df = DateFormat.getDateInstance(DateFormat.MEDIUM); 
    String cs = df.format(today); 
    date.setText(cs); 
} 


public void saveClickHandler(View v){ 

    String ContactsScore; 
    ContactsScore= NameEditText.getText().toString(); 
    String name = String.format(ContactsScore, null); 
    ContactsScore= PhoneEditText.getText().toString(); 
    int Phone = Integer.parseInt(ContactsScore); 

    Log.d("EnterContacts" , "I hear the Save Button"); 

    if(isValid(Phone)) { 
     Contacts contacts; 
     Date dateofGames= new GregorianCalendar(year,month,day).getTime(); 
     contacts = new Contacts (name , Phone , dateofGames); 

     ContactsActivityApplication app = (ContactsActivityApplication) getApplication(); 
     //might be wrong 

     Log.d("DeBUGGING", "app is this type: " + app.getClass().getName()); 
     //need add the function addBowlingScores 
     app.addallContacts(contacts); 

     Toast.makeText(getApplicationContext(), "Your Contact has been Saved!", Toast.LENGTH_SHORT).show(); 

} 

    else{ 
     //pop up a dialog that data is invalid 
     AlertDialog.Builder builder = new AlertDialog.Builder(this); 
     builder.setTitle("Invalid Phone Number") 
       .setMessage("Phone numbers cannot have more than 8 numbers") 
       .setCancelable(false) 
       .setPositiveButton("OK", 

       new DialogInterface.OnClickListener() { 

        @Override 
        public void onClick(DialogInterface dialog, int which) { 
         // TODO Auto-generated method stub 
         dialog.cancel(); 
        } 
       }); 

     AlertDialog alert = builder.create(); 
     alert.show(); 
    } 
    } 



private boolean isValid(int Phone) { 

    if(Phone > 0 && Phone <100000000) 
     return true; 
    return false; 
    // TODO Auto-generated method stub 
} 


public void handleShowHistoryClick (View v) { 

    Intent intent = new Intent(this, HistoryActivity.class); 
    startActivity(intent); 
} 


private void setUpViews() 
{ 
    ExitButton = (Button) findViewById(R.id.BtnExit); 
    saveButton =(Button) findViewById(R.id.BtnSave); 
    NameEditText= (EditText) findViewById(R.id.NameEditText); 
    PhoneEditText= (EditText) findViewById(R.id.PhoneEditText); 
    EmailEditText= (EditText) findViewById(R.id.EmailEditText); 
    date = (TextView) findViewById(R.id.DateTextView); 

} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.addcontacts, menu); 
    return true; 
} 

}

EnterContactsActivity

package com.Elson.ProjectVersion; 

import java.text.DateFormat; 
import java.util.Calendar; 
import java.util.Date; 
import java.util.GregorianCalendar; 

import android.os.Bundle; 
import android.app.Activity; 
import android.app.AlertDialog; 
import android.content.DialogInterface; 
import android.util.Log; 
import android.view.Menu; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 
import android.widget.Toast; 

public class EnterContactsActivity extends Activity { 

private Button saveButton; 
private EditText NameEditText; 
private EditText PhoneEditText; 
private Button ExitButton; 
private EditText EmailEditText; 
private TextView date; 

private int month;//private within class 
private int day; 
private int year; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_addcontacts); 

    setUpViews(); 

    Calendar calendar =Calendar.getInstance(); 
    year = calendar.get(Calendar.YEAR); 
    month = calendar.get(Calendar.MONTH); 
    day = calendar.get(Calendar.DAY_OF_MONTH); 

    Date today = calendar.getTime(); 
    DateFormat df = DateFormat.getDateInstance(DateFormat.MEDIUM); 
    String cs = df.format(today); 
    date.setText(cs); 
} 


public void saveClickHandler(View v){ 

    String ContactsScore; 
    ContactsScore= NameEditText.getText().toString(); 
    int name = Integer.parseInt(ContactsScore); 
    ContactsScore= PhoneEditText.getText().toString(); 
    int Phone = Integer.parseInt(ContactsScore); 
    ContactsScore = EmailEditText.getText().toString(); 
    int Email = Integer.parseInt(ContactsScore); 

    Log.d("EnterContacts" , "I hear the Save Button"); 

    if(isValid(name) && isValid(Phone) && isValid(Email)) { 
     Contacts contacts; 
     Date dateofGames= new GregorianCalendar(year,month,day).getTime(); 
     contacts = new Contacts (name , Phone , Email, dateofGames); 

     ContactsActivityApplication app = (ContactsActivityApplication) getApplication(); 
     //might be wrong 

     Log.d("DeBUGGING", "app is this type: " + app.getClass().getName()); 
     //need add the function addBowlingScores 
     app.addallContacts(contacts); 

     Toast.makeText(getApplicationContext(), "Your Contact has been Saved!", Toast.LENGTH_SHORT).show(); 

} 

    else{ 
     //pop up a dialog that data is invalid 
     AlertDialog.Builder builder = new AlertDialog.Builder(this); 
     builder.setTitle("Invalid Phone Number") 
       .setMessage("Phone numbers cannot have more than 8 numbers") 
       .setCancelable(false) 
       .setPositiveButton("OK", 

       new DialogInterface.OnClickListener() { 

        @Override 
        public void onClick(DialogInterface dialog, int which) { 
         // TODO Auto-generated method stub 
         dialog.cancel(); 
        } 
       }); 

     AlertDialog alert = builder.create(); 
     alert.show(); 
    } 
    } 
private boolean isValid(int phone) { 

    if(phone <= 0 && phone >=100000000) 
     return true; 
    return false; 
    // TODO Auto-generated method stub 
} 


private void setUpViews() 
{ 
    ExitButton = (Button) findViewById(R.id.BtnExit); 
    saveButton =(Button) findViewById(R.id.BtnSave); 
    NameEditText= (EditText) findViewById(R.id.NameEditText); 
    PhoneEditText= (EditText) findViewById(R.id.PhoneEditText); 
    EmailEditText= (EditText) findViewById(R.id.EmailEditText); 
    date = (TextView) findViewById(R.id.DateTextView); 

} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.addcontacts, menu); 
    return true; 
} 

} 

MyContactsSQL

package com.Elson.ProjectVersion; 

import android.content.Context; 
import android.database.sqlite.SQLiteDatabase; 
import android.database.sqlite.SQLiteOpenHelper; 
import android.database.sqlite.SQLiteException; 
import android.util.Log; 

общественного класса MyContactSQL простирается SQLiteOpenHelper {

public static final String DB_NAME ="MyContactSQL.SQLite"; 
public static final int DB_VERSION = 1; 
public static String CONTACT_LIST_TABLE = "ContactListTable"; 
public static String RECORD_ID ="ID"; 
public static String NAME = "NAME"; 
public static String PHONE_NUMBER="PhoneNumber"; 

public MyContactSQL(Context context) { 
    super(context, DB_NAME, null, DB_VERSION); 

} 

@Override 
public void onCreate(SQLiteDatabase contactListDB) { 


    String sqlStatement = "create table " + CONTACT_LIST_TABLE 
      + " (" 
      + RECORD_ID + " integer primary key autoincrement not null," 
      + NAME + " long," 
      + PHONE_NUMBER +" integer" 
      +");"; 


      Log.d("Contact Database", sqlStatement); 

      contactListDB.execSQL(sqlStatement); 

} 

@Override 
public void onUpgrade(SQLiteDatabase arg0, int arg1, int arg2) { 

} 

}

HistoryActivit y

import java.util.ArrayList; 

import android.app.AlertDialog; 
import android.app.ListActivity; 
import android.content.DialogInterface; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.View; 
import android.widget.AdapterView; 
import android.widget.AdapterView.OnItemClickListener; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 

public class HistoryActivity extends ListActivity { 

Bundle savedInstanceState; 
private ArrayList <Contacts> allContacts; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    this.savedInstanceState = savedInstanceState; 
    setContentView(R.layout.history_layout); 

    //get data from the App 
    ContactsActivityApplication app = (ContactsActivityApplication) getApplication(); 
    allContacts = app.getAllContacts(); 


    //View --- Adapter ------ Data 

    setListAdapter(
      new ArrayAdapter<Contacts> (this, R.layout.history_row, 
        allContacts 
        )); 

     ListView listView = this.getListView(); 
     listView.setOnItemClickListener(
       new OnItemClickListener() { 

        @Override 
        public void onItemClick(AdapterView<?> parent, View view, 
          int position, long id) { 
         verifyDeleteRow(position); 
         Log.d("DEBUG", "I hear item selected:" + position); 
         // TODO Auto-generated method stub 

        } 

       } 

       ); 
} 

private void verifyDeleteRow(final int position){ 
    //pop up a dialog to confirm delete row 
    AlertDialog.Builder builder = new AlertDialog.Builder(this); 
    builder.setTitle("Delete this Series?") 
      .setMessage("Do you want to delete this data?" + allContacts.get(position)) 
      .setCancelable(false) 
      .setNegativeButton("NO! Leave it there!", 

        new DialogInterface.OnClickListener() { 

       @Override 
       public void onClick(DialogInterface dialog, int which) { 
        // TODO Auto-generated method stub 
        dialog.cancel(); 
       } 
      }) 
      .setPositiveButton("Delete", 

      new DialogInterface.OnClickListener() { 

       @Override 
       public void onClick(DialogInterface dialog, int which) { 

        Contacts toDelete = allContacts.get(position); 

        ContactsActivityApplication app = (ContactsActivityApplication) getApplication(); 
        app.deleteBowlingScores(toDelete); 
        // TODO Auto-generated method stub 
        onCreate(savedInstanceState); 
       } 
      }); 

    AlertDialog alert = builder.create(); 
    alert.show(); 

} 
} 

Answer 1

В вашем классе SQLHelper вы создали базу данных с «DB_Name» в кавычках. это означает, что вашим dbname будет DB_Name.

super(context, "DB_NAME", null, DB_VERSION); 

сделать так

super(context, DB_NAME, null, DB_VERSION); 

Надеется, что это помогает !!