Java tutorial
/* * Copyright (C) 2016 Mkhytar Mkhoian * * 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.justplay1.shoppist.features.units; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.v4.view.ViewCompat; import android.support.v7.view.ActionMode; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import com.justplay1.shoppist.App; import com.justplay1.shoppist.R; import com.justplay1.shoppist.di.components.DaggerUnitsComponent; import com.justplay1.shoppist.di.components.UnitsComponent; import com.justplay1.shoppist.shared.base.activities.BaseListActivity; /** * Created by Mkhytar Mkhoian. */ public class UnitsActivity extends BaseListActivity implements Toolbar.OnMenuItemClickListener { private UnitFragment fragment; public static Intent getCallingIntent(Context context) { return new Intent(context, UnitsActivity.class); } public UnitFragment createFragment() { return UnitFragment.newInstance(); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); createNewInjectorIfNeeded(); setContentView(R.layout.layout_single_fragment); initToolbar(); fragment = (UnitFragment) getSupportFragmentManager().findFragmentByTag(UnitFragment.class.getName()); if (fragment == null) { fragment = createFragment(); } replaceFragment(R.id.container, fragment, UnitFragment.class.getName()); } private void initToolbar() { Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); toolbar.setTitle(R.string.units); toolbar.setBackgroundColor(preferences.getColorPrimary()); toolbar.setNavigationIcon(R.drawable.ic_back_white); toolbar.setNavigationOnClickListener(v -> finishActivity()); toolbar.setOnMenuItemClickListener(this); toolbar.inflateMenu(R.menu.units_and_currency_menu); ViewCompat.setElevation(toolbar, getResources().getDimensionPixelSize(R.dimen.toolbar_elevation)); } private void createNewInjectorIfNeeded() { UnitsComponent component = getInjector(UnitsComponent.class.getName()); if (component == null) { component = DaggerUnitsComponent.builder().appComponent(App.get().getAppComponent()).build(); putInjector(UnitsComponent.class.getName(), component); } } @Override public boolean onMenuItemClick(MenuItem item) { switch (item.getItemId()) { case R.id.menu_check_all: fragment.onCheckAllItemsClick(); break; } return true; } @Override public boolean onCreateActionMode(ActionMode mode, Menu menu) { MenuInflater menuInflater = mode.getMenuInflater(); menuInflater.inflate(R.menu.units_and_currency_action_mode, menu); return true; } @Override public boolean onActionItemClicked(ActionMode mode, MenuItem item) { switch (item.getItemId()) { case R.id.menu_delete: fragment.onDeleteCheckedItemsClick(); break; case R.id.menu_check_all: fragment.onCheckAllItemsClick(); break; case R.id.menu_uncheck_all: closeActionMode(); break; } return true; } @Override public boolean onPrepareActionMode(ActionMode mode, Menu menu) { super.onPrepareActionMode(mode, menu); MenuItem delete = menu.findItem(R.id.menu_delete); delete.setVisible(fragment.isDeleteButtonEnable()); MenuItem checkAll = menu.findItem(R.id.menu_check_all); checkAll.setEnabled(fragment.isCheckAllButtonEnable()); return true; } @Override public void onDestroyActionMode(ActionMode actionMode) { super.onDestroyActionMode(actionMode); fragment.onUnCheckAllItemsClick(); } }