Added DialogFrament to get new group name

<?xml version="1.0" encoding="utf-8"?>

<!-- Copyright (C) 2016 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");

     you may not use this file except in compliance with the License.

     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software

     distributed under the License is distributed on an "AS IS" BASIS,

     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

     See the License for the specific language governing permissions and

     limitations under the License.

-->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:orientation="vertical"

    android:paddingBottom="24dp"

    android:paddingStart="24dp"

    android:paddingEnd="24dp">

    <EditText android:id="@android:id/text1"

        xmlns:android="http://schemas.android.com/apk/res/android"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginBottom="4dp"

        android:layout_marginLeft="4dp"

        android:layout_marginRight="4dp"

        android:layout_marginTop="16dp"

        android:inputType="textCapWords"

        android:maxLength="40"/>

</LinearLayout>

 No newline at end of file

    <string name="share_via">Share contact via</string>

    <!-- Title for the disambiguation dialog that requests the user choose an account for the new label to be created under [CHAR LIMIT=NONE] -->

    <string name="dialog_new_group_account">Create label under account</string>

    <string name="dialog_new_group_account">Choose account</string>

    <!-- Title for the create new label dialog. CHAR LIMIT=40] -->

    <string name="create_group_dialog_title">Create label</string>

    <!-- Button label to create a new label on the create new label dialog. [CHAR LIMIT=20] -->

    <string name="create_group_dialog_button">Create</string>

    <!-- Generic action string for starting an audio chat. Used by AccessibilityService to announce the purpose of the view. [CHAR LIMIT=NONE] -->

    <string name="audio_chat">Voice chat</string>

/*

 * Copyright (C) 2016 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, softwareateCre

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License

 */

package com.android.contacts.group;

import android.app.AlertDialog;

import android.app.Dialog;

import android.app.DialogFragment;

import android.app.Fragment;

import android.app.FragmentManager;

import android.content.DialogInterface;

import android.content.DialogInterface.OnClickListener;

import android.os.Bundle;

import android.text.Editable;

import android.text.TextUtils;

import android.text.TextWatcher;

import android.widget.Button;

import android.widget.EditText;

import com.android.contacts.R;

/**

 * Prompts the user for the name of the new group.

 */

public final class CreateGroupDialogFragment extends DialogFragment {

    private static final String TAG_CREATE_GROUP_DIALOG = "createGroup";

    /** Callbacks for hosts of the {@link CreateGroupDialogFragment}. */

    public interface Listener {

        void onCreateGroup(String groupName);

        void onCreateGroupCancelled();

    }

    private EditText mGroupNameEditText;

    public static <F extends Fragment & Listener> void show(

            FragmentManager fragmentManager, F targetFragment) {

        final CreateGroupDialogFragment dialog = new CreateGroupDialogFragment();

        dialog.setTargetFragment(targetFragment, /* requestCode */ 0);

        dialog.show(fragmentManager, TAG_CREATE_GROUP_DIALOG);

    }

    @Override

    public Dialog onCreateDialog(Bundle savedInstanceState) {

        // Build a dialog with two buttons and a view of a single EditText input field

        final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity())

                .setTitle(R.string.create_group_dialog_title)

                .setView(R.layout.create_group_dialog)

                .setNegativeButton(android.R.string.cancel, new OnClickListener() {

                    @Override

                    public void onClick(DialogInterface dialog, int which) {

                        onCreateGroupCancelled();

                        dismiss();

                    }

                })

                .setPositiveButton(R.string.create_group_dialog_button, new OnClickListener() {

                    @Override

                    public void onClick(DialogInterface dialog, int which) {

                        onCreateGroup();

                    }

                });

        // Disable the create button when the name is empty

        final AlertDialog alertDialog = builder.create();

        alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {

            @Override

            public void onShow(DialogInterface dialog) {

                mGroupNameEditText = (EditText) alertDialog.findViewById(android.R.id.text1);

                final Button createButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);

                createButton.setEnabled(!TextUtils.isEmpty(getGroupName()));

                mGroupNameEditText.addTextChangedListener(new TextWatcher() {

                    @Override

                    public void beforeTextChanged(CharSequence s, int start, int count, int after) {

                    }

                    @Override

                    public void onTextChanged(CharSequence s, int start, int before, int count) {

                    }

                    @Override

                    public void afterTextChanged(Editable s) {

                        createButton.setEnabled(!TextUtils.isEmpty(s));

                    }

                });

            }

        });

        return alertDialog;

    }

    @Override

    public void onCancel(DialogInterface dialog) {

        super.onCancel(dialog);

        onCreateGroupCancelled();

    }

    @Override

    public void onSaveInstanceState(Bundle b) {

        setTargetFragment(null, /* requestCode */ -1);

        super.onSaveInstanceState(b);

    }

    private void onCreateGroupCancelled() {

        final Fragment targetFragment = getTargetFragment();

        if (targetFragment != null && targetFragment instanceof Listener) {

            ((Listener) targetFragment).onCreateGroupCancelled();

        }

    }

    private void onCreateGroup() {

        final Fragment targetFragment = getTargetFragment();

        if (targetFragment != null && targetFragment instanceof Listener) {

            ((Listener) targetFragment).onCreateGroup(getGroupName());

        }

    }

    private String getGroupName() {

        return mGroupNameEditText == null || mGroupNameEditText.getText() == null

                ? null : mGroupNameEditText.getText().toString();

    }

}