I'm Trying To Extract Phone Number From Commondatakinds.phone Using Contact Id From Contactscontract,phone

The following error message is produced whenever user presses Yes button when requested permission to access contacts. java.lang.RuntimeException: Failure delivering result ResultI

Solution 1:

You are getting null when no contacts are found in particular _ID and use onRequestPermissionsResult() instead of onActivityResult().

Note: please check your ReadContact permission in Manifest and also give runtime permission.

Full Example:

publicclassMainActivityextendsAppCompatActivity {

    @OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                requestPermissions(newString[]{Manifest.permission.READ_CONTACTS}, 0);
            }
        } else {
            getId();
        }
    }

    //get _ID and NAMEpublicvoidgetId() {
        ContentResolver cr = getContentResolver();
        Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);

        if (cur.getCount() > 0) {
            while (cur.moveToNext()) {
                String id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID));
                String name = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
                getNumbers(cr, id);
            }
        }
    }

    //get Numbers where ( _ID = CONTACT_ID).publicStringgetNumbers(ContentResolver cr, String Id) {
        List<String> Numbers = newArrayList<>();

        Cursor pCur = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
                newString[]{Id}, null);

        while (pCur.moveToNext()) {
            String phoneNumber = pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
            int phoneType = pCur.getInt(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.TYPE));
            System.out.println("Contact No:==> " + phoneType);
            if (phoneType == ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE) {
                Numbers.add(phoneNumber);
            }
        }
        //return null when when no contacts found in specific ID otherwise it will generate error.if (Numbers.size() == 0) {
            returnnull;
        } else {
            System.out.println("Contact No:==> " + Numbers.get(0));
            returnNumbers.get(0);// get number from particular index and to get all numbers set datatype String to List<String>.
        }
    }

    @OverridepublicvoidonRequestPermissionsResult(int requestCode, @NonNullString[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == 0) {
            getId();
        }
    }
}