Java tutorial
/* * Copyright 2013 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use getActivity() 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.global.fragment; import java.util.ArrayList; import java.util.List; import java.util.Locale; import android.app.Activity; import android.app.Fragment; import android.app.FragmentManager; import android.app.SearchManager; import android.content.Intent; import android.content.res.Configuration; import android.os.Bundle; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; 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.AdapterView; import android.widget.ArrayAdapter; import android.widget.ExpandableListView; import android.widget.ExpandableListView.OnChildClickListener; import android.widget.ImageView; import android.widget.ListView; import android.widget.Toast; import com.global.R; import com.global.adapter.ExpandAdapter; import com.global.bean.ChildBean; import com.global.bean.ExpandBean; import com.global.classR.ClassUtil; /** * getActivity() example illustrates a common usage of the DrawerLayout widget * in the Android support library. * <p/> * <p> * When a navigation (left) drawer is present, the host activity should detect * presses of the action bar's Up affordance as a signal to open and close the * navigation drawer. The ActionBarDrawerToggle facilitates getActivity() * behavior. Items within the drawer should fall into one of two categories: * </p> * <p/> * <ul> * <li><strong>View switches</strong>. A view switch follows the same basic * policies as list or tab navigation in that a view switch does not create * navigation history. getActivity() pattern should only be used at the root * activity of a task, leaving some form of Up navigation active for activities * further down the navigation hierarchy.</li> * <li><strong>Selective Up</strong>. The drawer allows the user to choose an * alternate parent for Up navigation. getActivity() allows a user to jump * across an app's navigation hierarchy at will. The application should treat * getActivity() as it treats Up navigation from a different task, replacing the * current task stack using TaskStackBuilder or similar. getActivity() is the * only form of navigation drawer that should be used outside of the root * activity of a task.</li> * </ul> * <p/> * <p> * Right side drawers should be used for actions, not navigation. getActivity() * follows the pattern established by the Action Bar that navigation should be * to the left and actions to the right. An action should be an operation * performed on the current contents of the window, for example enabling or * disabling a data overlay on top of the current content. * </p> */ public class NativeMenuFragment extends BaseFragment implements OnChildClickListener { private DrawerLayout mDrawerLayout; private ExpandableListView mDrawerList; private ActionBarDrawerToggle mDrawerToggle; List<ExpandBean> data = new ArrayList<ExpandBean>(); private CharSequence mDrawerTitle; private CharSequence mTitle = ""; private String[] mPlanetTitles; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.drawablemenu, null); mPlanetTitles = getResources().getStringArray(R.array.planets_array); mDrawerLayout = (DrawerLayout) view.findViewById(R.id.drawer_layout); mDrawerList = (ExpandableListView) view.findViewById(R.id.left_drawer); // set a custom shadow that overlays the main content when the drawer // opens mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); // set up the drawer's list view with items and click listener data.add(new ExpandBean("", new ChildBean("SIM?", "CheckSimFragment"), new ChildBean("", "CheckJZQFragment"), new ChildBean("", "CheckCJQFragment"))); data.add(new ExpandBean("", new ChildBean("??", "CheckRebootFragment"), new ChildBean("??", "CheckReadVersionFragment"), new ChildBean("??", "CheckReadAddressFragment"), new ChildBean("?", "CheckSetAddressFragment"), new ChildBean("??", "CheckReadPowerFragment"), new ChildBean("??", "CheckSimFragment"))); mDrawerList.setAdapter(new ExpandAdapter(getActivity(), data)); mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); mDrawerList.setOnChildClickListener(this); // enable ActionBar app icon to behave as action to toggle nav drawer getActivity().getActionBar().setDisplayHomeAsUpEnabled(true); getActivity().getActionBar().setHomeButtonEnabled(true); // ActionBarDrawerToggle ties together the the proper interactions // between the sliding drawer and the action bar app icon mDrawerToggle = new ActionBarDrawerToggle(getActivity(), /* host Activity */ mDrawerLayout, /* DrawerLayout object */ R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */ R.string.drawer_open, /* "open drawer" description for accessibility */ R.string.drawer_close /* "close drawer" description for accessibility */ ) { public void onDrawerClosed(View view) { getActivity().getActionBar().setTitle(mTitle); getActivity().invalidateOptionsMenu(); // creates call to // onPrepareOptionsMenu() } public void onDrawerOpened(View drawerView) { getActivity().getActionBar().setTitle(mDrawerTitle); getActivity().invalidateOptionsMenu(); // creates call to // onPrepareOptionsMenu() } }; mDrawerLayout.setDrawerListener(mDrawerToggle); mDrawerToggle.syncState(); if (savedInstanceState == null) { selectItem(0); } return view; } // @Override // public boolean onCreateOptionsMenu(Menu menu) { // MenuInflater inflater = getMenuInflater(); // inflater.inflate(R.menu.main, menu); // return super.onCreateOptionsMenu(menu); // } /* Called whenever we call invalidateOptionsMenu() */ // @Override // public boolean onPrepareOptionsMenu(Menu menu) { // // If the nav drawer is open, hide action items related to the content // // view // boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList); // // menu.findItem(R.id.action_websearch).setVisible(!drawerOpen); // return super.onPrepareOptionsMenu(menu); // } @Override public boolean onOptionsItemSelected(MenuItem item) { // The action bar home/up action should open or close the drawer. // ActionBarDrawerToggle will take care of getActivity(). if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } // Handle action buttons switch (item.getItemId()) { case 1: // // create intent to perform web search for getActivity() planet // Intent intent = new Intent(Intent.ACTION_WEB_SEARCH); // intent.putExtra(SearchManager.QUERY, getActionBar().getTitle()); // // catch event that there's no activity to handle intent // if (intent.resolveActivity(getPackageManager()) != null) { // startActivity(intent); // } else { // Toast.makeText(getActivity(), R.string.app_not_available, // Toast.LENGTH_LONG).show(); return true; default: return super.onOptionsItemSelected(item); } } /* The click listner for ListView in the navigation drawer */ private class DrawerItemClickListener implements ListView.OnItemClickListener { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { selectItem(position); } } private void selectItem(int position) { // update the main content by replacing fragments Fragment fragment = new CheckSimFragment(); Bundle args = new Bundle(); args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position); fragment.setArguments(args); FragmentManager fragmentManager = getFragmentManager(); fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit(); // update selected item and title, then close the drawer mDrawerList.setItemChecked(position, true); // setTitle(mPlanetTitles[position]); mDrawerLayout.closeDrawer(mDrawerList); } // @Override // public void setTitle(CharSequence title) { // mTitle = title; // getActionBar().setTitle(mTitle); // } /** * When using the ActionBarDrawerToggle, you must call it during * onPostCreate() and onConfigurationChanged()... */ @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); // Pass any configuration change to the drawer toggls mDrawerToggle.onConfigurationChanged(newConfig); } /** * Fragment that appears in the "content_frame", shows a planet */ public static class PlanetFragment extends Fragment { public static final String ARG_PLANET_NUMBER = "planet_number"; public PlanetFragment() { // Empty constructor required for fragment subclasses } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_planet, container, false); int i = getArguments().getInt(ARG_PLANET_NUMBER); String planet = getResources().getStringArray(R.array.planets_array)[i]; int imageId = getResources().getIdentifier(planet.toLowerCase(Locale.getDefault()), "drawable", getActivity().getPackageName()); ((ImageView) rootView.findViewById(R.id.image)).setImageResource(imageId); getActivity().setTitle(planet); return rootView; } } @Override public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) { selectChildItem(groupPosition, childPosition); return false; } public void selectChildItem(int groupPosition, int childPosition) { ClassUtil.jumpFragment(getActivity(), getFragmentManager(), R.id.content_frame, data.get(groupPosition).getChildren()[childPosition].getChildFragment()); // setTitle(mPlanetTitles[position]); mDrawerLayout.closeDrawer(mDrawerList); } }