Java tutorial
package com.licenta.android.licenseapp.activity; import android.app.DialogFragment; import android.app.NotificationManager; import android.content.Intent; import android.content.SharedPreferences; import android.preference.PreferenceManager; import android.support.design.widget.FloatingActionButton; import android.support.design.widget.NavigationView; import android.support.design.widget.Snackbar; import android.support.design.widget.TabLayout; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.support.v4.app.Fragment; import android.support.v4.view.ViewPager; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.Toast; import com.facebook.appevents.AppEventsLogger; import com.licenta.android.licenseapp.location.LocationService; import com.licenta.android.licenseapp.R; import com.licenta.android.licenseapp.adapter.SectionsPagerAdapter; import com.licenta.android.licenseapp.alert.message.Message; import com.licenta.android.licenseapp.alert.MessageFactory; import com.licenta.android.licenseapp.contacts.ContactsActivity; import com.licenta.android.licenseapp.alarm.AlarmFragment; import com.licenta.android.licenseapp.location.MapFragment; import com.licenta.android.licenseapp.fragment.PinDialogFragment; import com.licenta.android.licenseapp.model.Contact; import com.licenta.android.licenseapp.model.LocationPoint; import com.licenta.android.licenseapp.util.Constants; import com.licenta.android.licenseapp.util.ServiceUtils; import com.licenta.android.licenseapp.view.NoSwipeViewPager; import java.util.ArrayList; import java.util.List; import io.realm.Realm; public class MainTabActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener { public SectionsPagerAdapter mSectionsPagerAdapter; private NoSwipeViewPager mViewPager; // public FloatingActionButton mAlarmFab; // private FloatingActionButton mSafeFab; private SharedPreferences prefs; private Realm realm; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main_tab); prefs = PreferenceManager.getDefaultSharedPreferences(this); realm = Realm.getDefaultInstance(); int notificationId = getIntent().getIntExtra(Constants.KEY_NOTIFICATION_ID, -1); handleNotificationAction(notificationId); // UI setUpNavigationDrawer(); setUpViewPager(); FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.panic_fab); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Snackbar.make(view, R.string.panic_action_msg, Snackbar.LENGTH_LONG) .setAction(android.R.string.cancel, new View.OnClickListener() { @Override public void onClick(View v) { showPinDialog(false); } }).setCallback(new Snackbar.Callback() { @Override public void onDismissed(Snackbar snackbar, int event) { switch (event) { case Snackbar.Callback.DISMISS_EVENT_ACTION: break; case Snackbar.Callback.DISMISS_EVENT_TIMEOUT: Toast.makeText(MainTabActivity.this, R.string.sending_alert, Toast.LENGTH_LONG) .show(); // TODO send alert sendAlert(); startLocationService(); break; } } }).show(); } }); fab.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { Snackbar.make(v, R.string.calling_112, Snackbar.LENGTH_LONG) .setAction(android.R.string.cancel, new View.OnClickListener() { @Override public void onClick(View v) { showPinDialog(false); } }).setCallback(new Snackbar.Callback() { @Override public void onDismissed(Snackbar snackbar, int event) { switch (event) { case Snackbar.Callback.DISMISS_EVENT_ACTION: break; case Snackbar.Callback.DISMISS_EVENT_TIMEOUT: // TODO send alert break; } } }).show(); return true; } }); } private void setUpNavigationDrawer() { Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close); drawer.setDrawerListener(toggle); toggle.syncState(); NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view); navigationView.setNavigationItemSelectedListener(this); } private void setUpViewPager() { ArrayList<Fragment> pageFragments = new ArrayList<>(); pageFragments.add(new AlarmFragment()); pageFragments.add(new MapFragment()); mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager(), pageFragments); mViewPager = (NoSwipeViewPager) findViewById(R.id.container); mViewPager.setAdapter(mSectionsPagerAdapter); mViewPager.setPagingEnabled(false); mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { // switch (position) { // case 0: // mAlarmFab.setVisibility(View.VISIBLE); // mSafeFab.setVisibility(View.VISIBLE); // break; // case 1: // mAlarmFab.setVisibility(View.GONE); // mSafeFab.setVisibility(View.GONE); // break; // } } @Override public void onPageScrollStateChanged(int state) { } }); TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs); tabLayout.setupWithViewPager(mViewPager); } @Override protected void onPause() { super.onPause(); // FB: Logs 'app deactivate' App Event. AppEventsLogger.deactivateApp(this); } @Override protected void onResume() { int notificationId = getIntent().getIntExtra(Constants.KEY_NOTIFICATION_ID, -1); //handleNotificationAction(notificationId); //mViewPager.setCurrentItem(0); super.onResume(); // FB: Logs 'install' and 'app activate' App Events. AppEventsLogger.activateApp(this); } @Override protected void onDestroy() { super.onDestroy(); realm.close(); } @Override public void onBackPressed() { DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); if (drawer.isDrawerOpen(GravityCompat.START)) { drawer.closeDrawer(GravityCompat.START); } else { if (mViewPager.getCurrentItem() > 0) { mViewPager.setCurrentItem(mViewPager.getCurrentItem() - 1); } else { super.onBackPressed(); } } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main_tab, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } @Override public boolean onNavigationItemSelected(MenuItem item) { // Handle navigation view item clicks here. int id = item.getItemId(); if (id == R.id.nav_account) { startActivity(new Intent(this, LoginActivity.class)); } else if (id == R.id.nav_contacts) { startActivity(new Intent(this, ContactsActivity.class)); } else if (id == R.id.nav_settings) { startActivity(new Intent(this, SettingsActivity.class)); } else if (id == R.id.nav_share) { } else if (id == R.id.nav_send) { } DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); drawer.closeDrawer(GravityCompat.START); return true; } // /** // * A placeholder fragment containing a simple view. // */ // public static class PlaceholderFragment extends Fragment { // /** // * The fragment argument representing the section number for this // * fragment. // */ // private static final String ARG_SECTION_NUMBER = "section_number"; // // public PlaceholderFragment() { // } // // /** // * Returns a new instance of this fragment for the given section // * number. // */ // public static PlaceholderFragment newInstance(int sectionNumber) { // PlaceholderFragment fragment = new PlaceholderFragment(); // Bundle args = new Bundle(); // args.putInt(ARG_SECTION_NUMBER, sectionNumber); // fragment.setArguments(args); // return fragment; // } // // @Override // public View onCreateView(LayoutInflater inflater, ViewGroup container, // Bundle savedInstanceState) { // View rootView = inflater.inflate(R.layout.fragment_alarm, container, false); // TextView textView = (TextView) rootView.findViewById(R.id.section_label); // textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER))); // return rootView; // } // } private void handleNotificationAction(int notificationId) { NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); switch (notificationId) { case Constants.PANIC_ID: notificationManager.cancel(notificationId); break; case Constants.ALARM_ID: if (getIntent().getBooleanExtra(Constants.KEY_DISMISS_ALARM, false)) { showPinDialog(true); //AlarmReceiver.cancelAlarm(this); } else { } notificationManager.cancel(notificationId); break; } } public void showPinDialog(boolean dismissAlarm) { // Create the fragment and show it as a dialog. DialogFragment dialog = PinDialogFragment.newInstance("", dismissAlarm ? getString(R.string.enter_pin_to_dismiss_alarm) : getString(R.string.enter_pin_to_cancel_alert), dismissAlarm); dialog.show(getFragmentManager(), "pin_dialog"); } private void startLocationService() { Intent intent = new Intent(MainTabActivity.this, LocationService.class); if (!ServiceUtils.isServiceRunning(MainTabActivity.this, LocationService.class)) { startService(intent); Toast.makeText(MainTabActivity.this, "Service started", Toast.LENGTH_SHORT).show(); } else { stopService(intent); Toast.makeText(MainTabActivity.this, "Service stopped", Toast.LENGTH_SHORT).show(); } } private void sendAlert() { MessageFactory alertMsgFactory = new MessageFactory(); List<Contact> contactList = realm.where(Contact.class).equalTo("active", true).findAll(); LocationPoint lastKnownLocation; String messageText = "I may be in danger. My last known location is: " + prefs.getString(Constants.PREF_KEY_LAST_KNOWN_ADDRESS, ""); for (Contact contact : contactList) { for (Message alertMsg : alertMsgFactory.getMessageQueue()) { // TODO: handlers alertMsg.send(this, contact, messageText); } } } }