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/*
* 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.app.FragmentTransaction;
import android.support.v4.view.MenuItemCompat;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBarActivity;
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.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.CheckBox;
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 ActionBarActivity {
@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;
}
}
}
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