Java tutorial
/* * Copyright 2016, Pavel Annin * * 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 ru.annin.store.presentation.ui.viewholder; import android.support.annotation.NonNull; import android.support.design.widget.NavigationView; import android.support.design.widget.TabLayout; import android.support.v4.app.Fragment; import android.support.v4.view.GravityCompat; import android.support.v4.view.ViewPager; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.AppCompatSpinner; import android.support.v7.widget.Toolbar; import android.util.SparseArray; import android.view.View; import android.widget.AdapterView; import android.widget.Spinner; import io.realm.RealmResults; import ru.annin.store.R; import ru.annin.store.domain.model.StoreModel; import ru.annin.store.presentation.common.BaseViewHolder; import ru.annin.store.presentation.ui.adapter.ChartPagerAdapter; import ru.annin.store.presentation.ui.adapter.StoreSelectAdapter; import ru.annin.store.presentation.ui.fragment.BaseChartFragment; /** * BaseViewHolder ?. * * @author Pavel Annin. */ public class MainViewHolder extends BaseViewHolder { // View's private final Toolbar toolbar; private final DrawerLayout drawerLayout; private final NavigationView navigation; private final Spinner spStore; private final TabLayout tabLayout; private final ViewPager pager; private ActionBarDrawerToggle drawerToggle; private final ChartPagerAdapter chartPagerAdapter; // Adapter's private final StoreSelectAdapter storeAdapter; // Listener's private OnClickListener listener; public MainViewHolder(@NonNull AppCompatActivity activity, @NonNull View view) { super(view); toolbar = (Toolbar) vRoot.findViewById(R.id.toolbar); drawerLayout = (DrawerLayout) vRoot.findViewById(R.id.drawer_layout); navigation = (NavigationView) vRoot.findViewById(R.id.nav); spStore = (AppCompatSpinner) navigation.getHeaderView(0).findViewById(R.id.sp_store); tabLayout = (TabLayout) vRoot.findViewById(R.id.tabs); pager = (ViewPager) vRoot.findViewById(R.id.pager_container); // Setup drawerToggle = new ActionBarDrawerToggle(activity, drawerLayout, toolbar, R.string.title_nav_drawer_open, R.string.title_nav_drawer_close); drawerLayout.addDrawerListener(drawerToggle); drawerToggle.syncState(); storeAdapter = new StoreSelectAdapter(vRoot.getContext()); spStore.setOnItemSelectedListener(onStoreListener); navigation.setNavigationItemSelectedListener(onNavigationClickListener); spStore.setAdapter(storeAdapter); chartPagerAdapter = new ChartPagerAdapter(activity.getSupportFragmentManager()); pager.setAdapter(chartPagerAdapter); tabLayout.setupWithViewPager(pager); } public MainViewHolder showStore(RealmResults<StoreModel> data, String selectId) { showStore(data); int selectPosition = storeAdapter.getPosition(selectId); spStore.setSelection(selectPosition); return this; } public MainViewHolder showStore(RealmResults<StoreModel> data) { storeAdapter.updateData(data); return this; } public MainViewHolder showNavigation() { drawerLayout.openDrawer(GravityCompat.START); return this; } public MainViewHolder hideNavigation() { drawerLayout.closeDrawer(GravityCompat.START); return this; } public MainViewHolder refreshChart() { SparseArray<Fragment> fragments = chartPagerAdapter.getRegisteredFragments(); for (int i = 0; i < fragments.size(); ++i) { Fragment fragment = fragments.get(i); if (fragment != null && fragment instanceof BaseChartFragment) { ((BaseChartFragment) fragment).updateChart(); } } return this; } public boolean isNavigationShowing() { return drawerLayout.isDrawerOpen(GravityCompat.START); } public void setOnClickListener(OnClickListener listener) { this.listener = listener; } private final NavigationView.OnNavigationItemSelectedListener onNavigationClickListener = item -> { if (listener != null) { switch (item.getItemId()) { case R.id.action_nav_invoice: listener.onNavInvoiceClick(); return true; case R.id.action_nav_nomenclature: listener.onNavNomenclatureClick(); return true; case R.id.action_nav_store: listener.onNavStoreClick(); return true; case R.id.action_nav_units: listener.onNavUnitsClick(); return true; case R.id.action_nav_about: listener.onNavAboutClick(); return true; default: break; } } return false; }; private final AdapterView.OnItemSelectedListener onStoreListener = new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { String storeId = storeAdapter.getId(position); if (listener != null) { listener.onStoreSelect(storeId); } } @Override public void onNothingSelected(AdapterView<?> parent) { } }; public interface OnClickListener { void onNavInvoiceClick(); void onNavNomenclatureClick(); void onNavStoreClick(); void onNavUnitsClick(); void onNavAboutClick(); void onStoreSelect(String storeId); } }