Java tutorial
/* * Copyright 2013 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 br.edu.ufabc.padm.cardioufabc; import java.lang.reflect.Field; import java.util.Locale; import android.app.Activity; import android.app.Fragment; import android.app.FragmentManager; import android.app.SearchManager; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.content.res.Configuration; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.app.ActivityCompat; 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.ViewConfiguration; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; import br.edu.ufabc.padm.cardioufabc.helpers.Permission; import br.edu.ufabc.padm.cardioufabc.helpers.Util; import br.edu.ufabc.padm.cardioufabc.models.Atividade; import br.edu.ufabc.padm.cardioufabc.models.AtividadeDAO; import br.edu.ufabc.padm.cardioufabc.views.AtividadesFragment; import br.edu.ufabc.padm.cardioufabc.views.CalendarioFragment; import br.edu.ufabc.padm.cardioufabc.views.ConfiguracaoFragment; import br.edu.ufabc.padm.cardioufabc.views.CriarAtividadeFragment; import br.edu.ufabc.padm.cardioufabc.views.EstatisticaFragment; import br.edu.ufabc.padm.cardioufabc.views.HomeFragment; import br.edu.ufabc.padm.cardioufabc.views.MedidorFragment; public class MainActivity extends Activity { public static volatile Permission.Permissible permissible; private static final int WRITE_EXTERNAL_STORAGE_REQ_CODE = 0; private DrawerLayout mDrawerLayout; private ListView mDrawerList; private ActionBarDrawerToggle mDrawerToggle; private CharSequence mDrawerTitle; private CharSequence mTitle; private String[] menuItems; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mTitle = mDrawerTitle = getTitle(); menuItems = getResources().getStringArray(R.array.menu_items); mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); mDrawerList = (ListView) findViewById(R.id.left_drawer); // set a custom shadow that overlays the main content when the drawer opens mDrawerLayout.setDrawerShadow(R.drawable.overlay, GravityCompat.START); // set up the drawer's list view with items and click listener mDrawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.menu_item, menuItems)); mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); // enable ActionBar app icon to behave as action to toggle nav drawer getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setHomeButtonEnabled(true); // ActionBarDrawerToggle ties together the the proper interactions // between the sliding drawer and the action bar app icon mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */ mDrawerLayout, /* DrawerLayout object */ R.drawable.hamburger, /* 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) { getActionBar().setTitle(mTitle); } public void onDrawerOpened(View drawerView) { getActionBar().setTitle(mDrawerTitle); } }; mDrawerLayout.setDrawerListener(mDrawerToggle); if (savedInstanceState == null) { selectItem(0); } } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); //inflater.inflate(R.menu.main, menu); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { // The action bar home/up action should open or close the drawer. // ActionBarDrawerToggle will take care of this. if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } else { 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) { Fragment fragment = null; String menuItem = menuItems[position]; switch (menuItem) { case "Home": fragment = new HomeFragment(); break; case "Medidor": fragment = new CriarAtividadeFragment(); break; case "Estatstica": fragment = new EstatisticaFragment(); break; case "Calendrio": fragment = new CalendarioFragment(); break; case "Atividades": fragment = new AtividadesFragment(); break; case "Configuraes": fragment = new ConfiguracaoFragment(); break; } if (fragment != null) { FragmentManager fragmentManager = getFragmentManager(); fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).addToBackStack(null).commit(); // update selected item and title, then close the drawer mDrawerList.setItemChecked(position, true); setTitle(menuItems[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 protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); // Sync the toggle state after onRestoreInstanceState has occurred. mDrawerToggle.syncState(); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); // Pass any configuration change to the drawer toggls mDrawerToggle.onConfigurationChanged(newConfig); } @Override public void onBackPressed() { FragmentManager manager = getFragmentManager(); if (manager.getBackStackEntryCount() > 0) { manager.popBackStack(); } else { super.onBackPressed(); } } public void iniciarMedicao(View view) { Fragment fragment = null; fragment = new CriarAtividadeFragment(); FragmentManager fragmentManager = getFragmentManager(); fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).addToBackStack(null).commit(); } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); if (requestCode == WRITE_EXTERNAL_STORAGE_REQ_CODE) { // como as permisses so solicitadas individualmente, basta verificar apenas o primeiro if (grantResults.length > 0) { if (grantResults[0] == PackageManager.PERMISSION_GRANTED) { permissible.onPermissionGranted(permissions[0]); } else if (grantResults[0] == PackageManager.PERMISSION_DENIED) { boolean showRationale = ActivityCompat.shouldShowRequestPermissionRationale(this, permissions[0]); // "never ask again" habilitado if (!showRationale) { permissible.onNeverAskAgain(permissions[0]); } } } } } }