| /* |
| * Copyright (C) 2014 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.example.android.supportv7.app; |
| |
| import com.example.android.supportv7.R; |
| |
| import android.os.Bundle; |
| import android.support.annotation.Nullable; |
| import android.support.v4.app.Fragment; |
| import android.support.v4.app.FragmentManager; |
| import android.support.v4.app.FragmentPagerAdapter; |
| import android.support.v4.view.MenuItemCompat; |
| import android.support.v4.view.ViewPager; |
| import android.support.v7.app.AppCompatActivity; |
| import android.support.v7.widget.Toolbar; |
| import android.view.Gravity; |
| import android.view.LayoutInflater; |
| import android.view.Menu; |
| import android.view.MenuInflater; |
| import android.view.MenuItem; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.TextView; |
| import android.widget.Toast; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Demonstrates how fragments can participate in the options menu from within a {@link ViewPager}. |
| */ |
| public class ToolbarFragmentPagerMenu extends AppCompatActivity { |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| setContentView(R.layout.toolbar_fragment_pager); |
| |
| Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); |
| setSupportActionBar(toolbar); |
| |
| ViewPager vp = (ViewPager) findViewById(R.id.viewpager); |
| PagerAdapter adapter = new PagerAdapter(getSupportFragmentManager(), |
| new MenuFragment(), new Menu2Fragment()); |
| vp.setAdapter(adapter); |
| } |
| |
| private static class PagerAdapter extends FragmentPagerAdapter { |
| private final List<Fragment> mFragments; |
| |
| public PagerAdapter(FragmentManager fm, Fragment... fragments) { |
| super(fm); |
| |
| mFragments = new ArrayList<Fragment>(); |
| for (Fragment fragment : fragments) { |
| mFragments.add(fragment); |
| } |
| } |
| |
| @Override |
| public Fragment getItem(int position) { |
| return mFragments.get(position); |
| } |
| |
| @Override |
| public int getCount() { |
| return mFragments.size(); |
| } |
| } |
| |
| /** |
| * A fragment that displays a menu. This fragment happens to not |
| * have a UI (it does not implement onCreateView), but it could also |
| * have one if it wanted. |
| */ |
| public static class MenuFragment extends Fragment { |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| setHasOptionsMenu(true); |
| } |
| |
| @Override |
| public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { |
| MenuItemCompat.setShowAsAction(menu.add("Menu 1a"), MenuItemCompat.SHOW_AS_ACTION_IF_ROOM); |
| MenuItemCompat.setShowAsAction(menu.add("Menu 1b"), MenuItemCompat.SHOW_AS_ACTION_NEVER); |
| super.onCreateOptionsMenu(menu, inflater); |
| } |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, |
| @Nullable Bundle savedInstanceState) { |
| TextView textView = new TextView(container.getContext()); |
| |
| textView.setText(getClass().getSimpleName()); |
| textView.setGravity(Gravity.CENTER); |
| textView.setLayoutParams(new ViewGroup.LayoutParams( |
| ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); |
| |
| return textView; |
| } |
| |
| @Override |
| public boolean onOptionsItemSelected(MenuItem item) { |
| if (item.getTitle().equals("Menu 1a")) { |
| Toast.makeText(getActivity(), "Selected Menu 1a.", Toast.LENGTH_SHORT).show(); |
| return true; |
| } |
| if (item.getTitle().equals("Menu 1b")) { |
| Toast.makeText(getActivity(), "Selected Menu 1b.", Toast.LENGTH_SHORT).show(); |
| return true; |
| } |
| return super.onOptionsItemSelected(item); |
| } |
| } |
| |
| /** |
| * Second fragment with a menu. |
| */ |
| public static class Menu2Fragment extends Fragment { |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| setHasOptionsMenu(true); |
| } |
| |
| @Override |
| public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { |
| MenuItemCompat.setShowAsAction(menu.add("Menu 2"), MenuItemCompat.SHOW_AS_ACTION_IF_ROOM); |
| } |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, |
| @Nullable Bundle savedInstanceState) { |
| TextView textView = new TextView(container.getContext()); |
| |
| textView.setText(getClass().getSimpleName()); |
| textView.setGravity(Gravity.CENTER); |
| textView.setLayoutParams(new ViewGroup.LayoutParams( |
| ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); |
| |
| return textView; |
| } |
| |
| @Override |
| public boolean onOptionsItemSelected(MenuItem item) { |
| if (item.getTitle().equals("Menu 2")) { |
| Toast.makeText(getActivity(), "Selected Menu 2.", Toast.LENGTH_SHORT).show(); |
| return true; |
| } |
| return false; |
| } |
| } |
| } |