Apps AddressBook displaying Contact's number

[personxd1]

I'm relatively new to Android, and I'm having trouble figuring out how to read my contact's phone number. My code below reads the contact's name and places it into an address book (not in alphabetical order). What I have to do is create an address book with contacts and their phone number in the same line.

import android.app.ListActivity;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.widget.ArrayAdapter;

public class MainActivity extends ListActivity {

   @Override
   public void onCreate(Bundle savedInstanceState) {

      super.onCreate(savedInstanceState);
        Log.i("TurnToTech", "Project name - AddressBook");

Cursor cursor = getContentResolver().query(
            ContactsContract.Contacts.CONTENT_URI, null, null, null, null);

      ArrayAdapter<String> list = new ArrayAdapter<String>(this,
            R.layout.activity_main)

      while (cursor.moveToNext()) {

         String name = cursor.getString(cursor
               .getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));

           // I checked online and this is what is used to get the contact's number
          // But this crashes my AndressBook app.
            String phone = cursor.getString(cursor
                    .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

         list.add(name);
      }

      setListAdapter(list);

   }

Any insight would be appreciated!

 

[Deleted User]

Can you post the Logcat output? Need to see a stack trace.

 

[personxd1]

Can you post the Logcat output? Need to see a stack trace.

https://gyazo.com/103d89095cab7226f923ff7519e8b54d
Is this the Logcat output?

 

[Deleted User]

Yes but we need to see a bit more of it than that.

 

[personxd1]

01/07 15:57:00: Launching app
Cold swapped changes.
$ adb shell am start -n "org.turntotech.addressbook/org.turntotech.addressbook.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER -D
Waiting for application to come online: org.turntotech.addressbook | org.turntotech.addressbook.test
Waiting for application to come online: org.turntotech.addressbook | org.turntotech.addressbook.test
Connecting to org.turntotech.addressbook
W/ActivityThread: Application org.turntotech.addressbook is waiting for the debugger on port 8100...
I/System.out: Sending WAIT chunk
I/art: Debugger is active
I/System.out: Debugger has connected
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
Connected to the target VM, address: 'localhost:8618', transport: 'socket'
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: debugger has settled (1458)
W/System: ClassLoader referenced unknown path: /data/app/org.turntotech.addressbook-1/lib/x86
I/InstantRun: Instant Run Runtime started. Android package is org.turntotech.addressbook, real application class is null.
W/System: ClassLoader referenced unknown path: /data/app/org.turntotech.addressbook-1/lib/x86
I/TurnToTech: Project name - AddressBook
E/CursorWindow: Failed to read row 0, column -1 from a CursorWindow which has 4 rows, 36 columns.
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
                  Process: org.turntotech.addressbook, PID: 9551
                  java.lang.RuntimeException: Unable to start activity ComponentInfo{org.turntotech.addressbook/org.turntotech.addressbook.MainActivity}: java.lang.IllegalStateException: Couldn't read row 0, col -1 from CursorWindow.  Make sure the Cursor is initialized correctly before accessing data from it.
                      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2665)
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726)
                      at android.app.ActivityThread.-wrap12(ActivityThread.java)
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477)
                      at android.os.Handler.dispatchMessage(Handler.java:102)
                      at android.os.Looper.loop(Looper.java:154)
                      at android.app.ActivityThread.main(ActivityThread.java:6119)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
                   Caused by: java.lang.IllegalStateException: Couldn't read row 0, col -1 from CursorWindow.  Make sure the Cursor is initialized correctly before accessing data from it.
                      at android.database.CursorWindow.nativeGetString(Native Method)
                      at android.database.CursorWindow.getString(CursorWindow.java:438)
                      at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:51)
                      at android.database.CursorWrapper.getString(CursorWrapper.java:137)
                      at org.turntotech.addressbook.MainActivity.onCreate(MainActivity.java:33)
                      at android.app.Activity.performCreate(Activity.java:6679)
                      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
                      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2618)
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726) 
                      at android.app.ActivityThread.-wrap12(ActivityThread.java) 
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477) 
                      at android.os.Handler.dispatchMessage(Handler.java:102) 
                      at android.os.Looper.loop(Looper.java:154) 
                      at android.app.ActivityThread.main(ActivityThread.java:6119) 
                      at java.lang.reflect.Method.invoke(Native Method) 
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) 
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) 
Disconnected from the target VM, address: 'localhost:8618', transport: 'socket'

I copied this from my console.

 

[Deleted User]

What's the value of this

ContactsContract.CommonDataKinds.Phone.NUMBER

Reason for asking is that this error

Failed to read row 0, column -1

Has a suspicious value of -1 for the column number.

What I would do is run the app in debug mode, and set a breakpoint at this code. Look at values such as this and it may give you more insight into what's causing the problem.