Merge "Split MainActivity into two peers, old and new to keep logic isolated."

import android.support.annotation.Nullable;

import android.support.annotation.VisibleForTesting;

import android.support.v4.app.Fragment;

import com.android.dialer.main.MainActivityPeer;

/** Utility methods for working with Fragments */

public class FragmentUtils {

      @SuppressWarnings("unchecked") // Casts are checked using runtime methods

      T parent = ((FragmentUtilListener) fragment.getActivity()).getImpl(callbackInterface);

      return parent;

    } else if (fragment.getActivity() instanceof MainActivityPeer.PeerSupplier) {

      MainActivityPeer peer = ((MainActivityPeer.PeerSupplier) fragment.getActivity()).getPeer();

      if (peer instanceof FragmentUtilListener) {

        return ((FragmentUtilListener) peer).getImpl(callbackInterface);

      }

    }

    return null;

  }

/*

 * Copyright (C) 2018 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

 */

package com.android.dialer.main;

import android.content.Intent;

import android.os.Bundle;

/** Interface for peers of MainActivity. */

public interface MainActivityPeer {

  void onActivityCreate(Bundle saveInstanceState);

  void onActivityResume();

  void onActivityStop();

  void onNewIntent(Intent intent);

  void onActivityResult(int requestCode, int resultCode, Intent data);

  void onSaveInstanceState(Bundle bundle);

  boolean onBackPressed();

  /** Supplies the MainActivityPeer */

  interface PeerSupplier {

    MainActivityPeer getPeer();

  }

}