Java tutorial
/* * Copyright (C) 2015 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.whatsoft.contactbook.activity; import android.app.SearchManager; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.design.widget.NavigationView; import android.support.design.widget.TabLayout; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.view.GravityCompat; import android.support.v4.view.ViewPager; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBar; import android.support.v7.widget.SearchView; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuItem; import android.view.View; import com.melnykov.fab.FloatingActionButton; import com.whatsoft.contactbook.R; import com.whatsoft.contactbook.base.BaseActivity; import com.whatsoft.contactbook.constant.ListType; import com.whatsoft.contactbook.constant.ProfileType; import com.whatsoft.contactbook.fragment.ContactsListFragment; import com.whatsoft.contactbook.utils.Utils; import java.util.ArrayList; import java.util.List; public class MainActivity extends BaseActivity { public static final int REQUEST_ADD_CONTACT = 10; private DrawerLayout mDrawerLayout; public FloatingActionButton btnAddContact; public android.support.v7.widget.SearchView searchView; private Adapter adapter; private ViewPager viewPager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); final ActionBar actionBar = getSupportActionBar(); if (actionBar != null) { // show menu // actionBar.setHomeAsUpIndicator(R.mipmap.ic_menu); // actionBar.setDisplayHomeAsUpEnabled(true); //hide menu actionBar.setDisplayHomeAsUpEnabled(false); } mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED); NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view); if (navigationView != null) { setupDrawerContent(navigationView); } viewPager = (ViewPager) findViewById(R.id.viewpager); if (viewPager != null) { setupViewPager(viewPager); } btnAddContact = (FloatingActionButton) findViewById(R.id.fab); btnAddContact.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Intent intent = new Intent(MainActivity.this, ProfileActivity.class); intent.putExtra(ProfileActivity.EXTRA_TYPE, ProfileType.ADD); startActivityForResult(intent, REQUEST_ADD_CONTACT); } }); TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs); tabLayout.setupWithViewPager(viewPager); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.search_menu, menu); // Get the SearchView and set the searchable configuration SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE); searchView = (SearchView) menu.findItem(R.id.action_search).getActionView(); // Assumes current activity is the searchable activity searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName())); //searchView.setIconifiedByDefault(false); // Do not iconify the widget; expand it by default searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String query) { Utils.hideSoftKeyboard(MainActivity.this); Fragment fragment = adapter.getItem(viewPager.getCurrentItem()); if (fragment instanceof ContactsListFragment) { ((ContactsListFragment) fragment).doSearch(query); } return true; } @Override public boolean onQueryTextChange(String newText) { //search with keyword length >= 3 // if (!TextUtils.isEmpty(newText) && newText.trim().length() < 3) { // return false; // } Fragment fragment = adapter.getItem(viewPager.getCurrentItem()); if (fragment instanceof ContactsListFragment) { ((ContactsListFragment) fragment).doSearch(newText); } return true; } }); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: mDrawerLayout.openDrawer(GravityCompat.START); return true; } return super.onOptionsItemSelected(item); } private void setupViewPager(ViewPager viewPager) { adapter = new Adapter(getSupportFragmentManager()); adapter.addFragment(new ContactsListFragment(), getString(R.string.contacts_list)); ContactsListFragment contactsListFragment = new ContactsListFragment(); Bundle bundle = new Bundle(); bundle.putSerializable(ContactsListFragment.LIST_TYPE, ListType.FAVORITE); contactsListFragment.setArguments(bundle); adapter.addFragment(contactsListFragment, getString(R.string.favorite_list)); viewPager.setAdapter(adapter); } private void setupDrawerContent(NavigationView navigationView) { navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() { @Override public boolean onNavigationItemSelected(MenuItem menuItem) { menuItem.setChecked(true); mDrawerLayout.closeDrawers(); return true; } }); } static class Adapter extends FragmentPagerAdapter { private final List<Fragment> mFragments = new ArrayList<>(); private final List<String> mFragmentTitles = new ArrayList<>(); public Adapter(FragmentManager fm) { super(fm); } public void addFragment(Fragment fragment, String title) { mFragments.add(fragment); mFragmentTitles.add(title); } @Override public Fragment getItem(int position) { return mFragments.get(position); } @Override public int getCount() { return mFragments.size(); } @Override public CharSequence getPageTitle(int position) { return mFragmentTitles.get(position); } public List<Fragment> getmFragments() { return mFragments; } } @Override protected void onResume() { super.onResume(); for (Fragment fragment : adapter.getmFragments()) { fragment.onResume(); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); for (Fragment fragment : adapter.getmFragments()) { fragment.onActivityResult(requestCode, resultCode, data); } } }