vamsiampolu vamsiampolu - 9 months ago 29
Android Question

Getting RawContact id using Contact id

I have built the following method to obtain the id from the RawContacts table using the id obtained from the Contacts table.This method fails thrwoing an Exception.

public int getRawContactId(int contactId)
{
String[] projection=new String[]{ContactsContract.RawContacts._ID};
String selection=ContactsContract.RawContacts.CONTACT_ID+"=?";
String[] selectionArgs=new String[]{String.valueOf(contactId)};
Cursor c=context.getContentResolver().query(ContactsContract.RawContacts.CONTENT_URI,projection,selection,selectionArgs , null);
int rawContactId=c.getInt(c.getColumnIndex(ContactsContract.RawContacts._ID));
Log.d(TAG,"Contact Id: "+contactId+" Raw Contact Id: "+rawContactId);
return rawContactId;
}


The corresponding Logcat looks like this:

FATAL EXCEPTION: main
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null,
request=1, result=-1, data=Intent {
dat=content://com.android.contacts/contacts/lookup/3844i21/993 flg=0x1 }} to
activity {com.example.contactbadger/com.example.contactbadger.MainActivity}:
android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a
size of 1
at android.app.ActivityThread.deliverResults(ActivityThread.java:3367)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3410)
at android.app.ActivityThread.access$1100(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1304)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 1
at android.database.AbstractCursor.checkPosition(AbstractCursor.java:424)
at android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:136)
at android.database.AbstractWindowedCursor.getInt(AbstractWindowedCursor.java:68)
at android.database.CursorWrapper.getInt(CursorWrapper.java:102)
at com.example.contactbadger.ContactUtils.getRawContactId(ContactUtils.java:171)
at com.example.contactbadger.MainActivity.getContactPhoto(MainActivity.java:65)
at com.example.contactbadger.MainActivity.onActivityResult(MainActivity.java:104)
at android.app.Activity.dispatchActivityResult(Activity.java:5322)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3363)

Answer Source

You need to move your Cursor at first position. By default the cursor set at -1 index, so moving it to 0th position you need to use moveToFirst().


So you can modify your code like

Cursor c = context.getContentResolver().query(ContactsContract.RawContacts.CONTENT_URI,projection,selection,selectionArgs , null);    
if (c.moveToFirst()) {    
    int rawContactId=c.getInt(c.getColumnIndex(ContactsContract.RawContacts._ID));
}