Showing contact from the contact loader Manager - contacts

Question

I am showing the contact list from the contact table but not able to get the phone number using the same on RecyclerView.My code is -
package com.oodles.oodlesapprtc;
import android.annotation.SuppressLint;
import android.app.LoaderManager;
import android.content.CursorLoader;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import java.util.ArrayList;
/**
* Created by ankita on 13/4/17.
*/
public class LoginUserActivity extends AppCompatActivity {
public static final int CONTACT_LOADER_ID = 78;
RecyclerView loginUserRecycler;
ArrayList<ContactBeans> contactBeanses;
String sortOrder = ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME +
" COLLATE LOCALIZED ASC";
private static final String[] PROJECTION2 = {
ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME_PRIMARY, ContactsContract.Contacts.PHOTO_URI,ContactsContract.Contacts.HAS_PHONE_NUMBER
};
private static final String[] PROJECTION3 = {
ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME_PRIMARY, ContactsContract.Contacts.PHOTO_URI, ContactsContract.Contacts.LOOKUP_KEY
};
private static final String[] PROJECTION = {
ContactsContract.CommonDataKinds.Phone.CONTACT_ID,
ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME_PRIMARY, ContactsContract.CommonDataKinds.Phone.NUMBER
};
// private static final String[] PROJECTION1 = {
// ContactsContract.Data.CONTACT_ID, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME_PRIMARY,
// ContactsContract.CommonDataKinds.Phone.NUMBER
// };
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login_user_activity);
initViews();
}
private void initViews() {
getLoaderManager().initLoader(0, null, contactLoaderManager);
initRecycler();
}
private void initRecycler() {
loginUserRecycler = (RecyclerView) findViewById(R.id.loginUserRecycler);
loginUserRecycler.setLayoutManager(new LinearLayoutManager(this));
loginUserRecycler.setItemAnimator(new DefaultItemAnimator());
}
LoaderManager.LoaderCallbacks<Cursor> contactLoaderManager = new LoaderManager.LoaderCallbacks<Cursor>() {
#Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
// String[] projectionFields = new String[]{ContactsContract.Contacts._ID,
// ContactsContract.Contacts.DISPLAY_NAME,ContactsContract.PhoneLookup.NORMALIZED_NUMBER,
// ContactsContract.Contacts.PHOTO_URI};
// Construct the loader
// Uri uri = Uri.withAppendedPath(ContactsContract.PhoneLookup.CONTENT_FILTER_URI, Uri.encode(phoneNumber));
// ContactsContract.Contacts.CONTENT_URI
// Uri lookupUri = Uri.withAppendedPath(ContactsContract.PhoneLookup.CONTENT_FILTER_URI,
// Uri.encode(phoneNumber));
CursorLoader cursorLoader = new CursorLoader(LoginUserActivity.this,
ContactsContract.Contacts.CONTENT_URI, // URI
PROJECTION2, // projection fields
null, // the selection criteria
null, // the selection args
sortOrder // the sort order
);
return cursorLoader;
}
#Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
loginUserRecycler.setAdapter(new CursorRecyclerAdapter(LoginUserActivity.this, data));
}
#Override
public void onLoaderReset(Loader<Cursor> loader) {
}
};
}
My Adapter is -
package com.oodles.oodlesapprtc;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.provider.ContactsContract;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* Created by ankita on 13/4/17.
*/
public class CursorRecyclerAdapter extends RecyclerView.Adapter<ContactViewHolder> {
private Cursor mCursor;
private final int mNameColIdx,
mIdColIdx;
int phoneNumber;
int hasPhoneNumber;
private Context mContext;
public CursorRecyclerAdapter(Context context, Cursor cursor) {
mCursor = cursor;
this.mContext = context;
mNameColIdx = cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME_PRIMARY);
mIdColIdx = cursor.getColumnIndex(ContactsContract.Contacts._ID);
hasPhoneNumber = cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER);
}
#Override
public ContactViewHolder onCreateViewHolder(ViewGroup parent, int pos) {
View listItemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.contact_row, parent, false);
return new ContactViewHolder(listItemView);
}
#Override
public void onBindViewHolder(ContactViewHolder contactViewHolder, int pos) {
mCursor.moveToPosition(pos);
String contactName = mCursor.getString(mNameColIdx);
long contactId = mCursor.getLong(mIdColIdx);
Contact c = new Contact();
Log.e("ddhdhdhhdhdhdhd",hasPhoneNumber+"");
c.name = contactName;
c.number = getPhoneNumberFromContactId(contactId);
c.profilePic = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, contactId);
getPhoneNumberFromContactId(contactId);
contactViewHolder.bind(c);
}
private String getPhoneNumberFromContactId(long contactId) {
String contactNumber = "8874675724";
return contactNumber;
}
#Override
public int getItemCount() {
return mCursor.getCount();
}
}
How can I get the phone number for the same i am getting a cursorindexoutofbound exception and has phone number value as 3 but it can be only 0 or 1 why it is 3 i don't understand this.
Can Anyone please explain this to me also please explain how the contact fetch works

Answer 1

You have a few issues in the code:
You're querying on the Contacts table, but sorting using a CommonDataKinds.Phone table field, that's not good, you can sort using Contacts.DISPLAY_NAME_PRIMARY instead.
cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER) gives you a column index, not the value of the field, that's why you're getting 3 (it's the 4rd field defined in PROJECTION2), change hasPhoneNumber to mHasPhoneNumberIdx to avoid confusion.
add hasPhoneNumber = mCursor.getInt(mHasPhoneNumberIdx); to your onBindViewHolder method, to get the actual value.
Running a long command like a real implementation of getPhoneNumberFromContactId within onBindViewHolder is really bad... you should change your main query so you do two big queries, one for all contacts, one for all phones, and then use some HashMap to get a phone using a contact-id.