Android: hàm insert danh bạ vào máy (android create new contact programming)

    public static void insertPhoneContact(String displayName, String number, Context context) {

        /*context is App or Activity*/

        ArrayList<ContentProviderOperation> operations = new ArrayList<ContentProviderOperation>();

        int contactIndex = operations.size();

        //Newly Inserted contact

        // A raw contact will be inserted ContactsContract.RawContacts table in contacts database.

        operations.add(ContentProviderOperation.newInsert(ContactsContract.RawContacts.CONTENT_URI)//Step1

                .withValue(ContactsContract.RawContacts.ACCOUNT_TYPE, null)

                .withValue(ContactsContract.RawContacts.ACCOUNT_NAME, null)

                .build());

        //Display name will be inserted in ContactsContract.Data table

        operations.add(ContentProviderOperation.newInsert(ContactsContract.Data.CONTENT_URI)//Step2

                .withValueBackReference(ContactsContract.RawContacts.Data.RAW_CONTACT_ID, contactIndex)

                .withValue(ContactsContract.RawContacts.Data.MIMETYPE, ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE)

                .withValue(ContactsContract.CommonDataKinds.StructuredName.DISPLAY_NAME, displayName)

                .build());

        //Mobile number will be inserted in ContactsContract.Data table

        operations.add(ContentProviderOperation.newInsert(ContactsContract.Data.CONTENT_URI)//Step 3

                .withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, contactIndex)

                .withValue(ContactsContract.RawContacts.Data.MIMETYPE, ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE)

                .withValue(ContactsContract.CommonDataKinds.Phone.NUMBER, number)

                .withValue(ContactsContract.CommonDataKinds.Phone.TYPE, ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE)

                .build());

        boolean isSuccess = false;

        try {

            // We will do batch operation to insert all above data

            //Contains the output of the app of a ContentProviderOperation.

            //It is sure to have exactly one of uri or count set

            ContentProviderResult[] contentProvider = context.getContentResolver()

                    .applyBatch(ContactsContract.AUTHORITY, operations); //apply above data insertion into contacts list

            Log.e("insertPhoneContact", "result: " + contentProvider);

            isSuccess = contentProvider != null && contentProvider.length > 0;

        } catch (RemoteException e) {

            e.printStackTrace();

        } catch (OperationApplicationException e) {

            e.printStackTrace();

        } catch (Exception e) {

            e.printStackTrace();

        }

        System.out.println("insertPhoneContact displayName: " + displayName + ", number:  " + number + ", isSuccess: " + isSuccess);

    }