Java tutorial
/* * Copyright (C) 2015 brayanarias.com ing.brayanarias@gmail.com * * 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.brayanarias.alarmproject.activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.support.design.widget.NavigationView; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; 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.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.webkit.WebChromeClient; import android.webkit.WebView; import android.widget.TextView; import com.android.datetimepicker.time.RadialPickerLayout; import com.android.datetimepicker.time.TimePickerDialog; import com.brayanarias.alarmproject.R; import com.brayanarias.alarmproject.database.AlarmDataBase; import com.brayanarias.alarmproject.database.DataBaseManager; import com.brayanarias.alarmproject.fragment.AlarmEmptyFragment; import com.brayanarias.alarmproject.fragment.AlarmListFragment; import com.brayanarias.alarmproject.fragment.CalendarHolidayFragment; import com.brayanarias.alarmproject.model.Alarm; import com.brayanarias.alarmproject.receiver.AlarmReceiver; import com.brayanarias.alarmproject.util.AlarmUtilities; import com.brayanarias.alarmproject.util.Constant; import java.util.ArrayList; import java.util.Calendar; public class MainActivity extends AppCompatActivity { public static final String tag = MainActivity.class.getName(); private Toolbar toolbar; private DataBaseManager dataBaseManager; private ActionBarDrawerToggle drawerToggle; private DrawerLayout drawerLayout; private NavigationView navigationView; public static final String actualFragmentKey = "ActualFragmentKey"; private int actualItem; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //Database instance this.dataBaseManager = DataBaseManager.getInstance(this); this.dataBaseManager.open(); this.dataBaseManager.close(); this.toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(this.toolbar); getSupportActionBar().setDisplayHomeAsUpEnabled(true); actualItem = R.id.itMyAlarms; if (savedInstanceState != null) { actualItem = savedInstanceState.getInt(actualFragmentKey); } this.showFragment(actualItem); setupDrawerLayout(); setupNavigationView(); } private void setupNavigationView() { navigationView = (NavigationView) findViewById(R.id.navigation); MenuItem item = navigationView.getMenu().findItem(actualItem); View nav_header = LayoutInflater.from(this).inflate(R.layout.nav_header, null); final NavigationView navigationView = (NavigationView) findViewById(R.id.navigation); navigationView.addHeaderView(nav_header); //salute String salute = AlarmUtilities.getSalute(getApplicationContext()); TextView tvWellcome = (TextView) nav_header.findViewById(R.id.tvWellcome); tvWellcome.setText(salute); if (item != null) { item.setChecked(true); } navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() { @Override public boolean onNavigationItemSelected(MenuItem menuItem) { CharSequence title = menuItem.getTitle(); closeDrawer(); switch (menuItem.getItemId()) { case R.id.itMyAlarms: showFragment(R.id.itMyAlarms); actualItem = menuItem.getItemId(); menuItem.setChecked(true); getSupportActionBar().setTitle(title); return true; case R.id.itAddAlarm: Calendar calendar = Calendar.getInstance(); int hour = calendar.get(Calendar.HOUR_OF_DAY); int minute = calendar.get(Calendar.MINUTE); TimePickerDialog timePickerDialog = TimePickerDialog .newInstance(new TimePickerDialog.OnTimeSetListener() { @Override public void onTimeSet(RadialPickerLayout view, int hourOfDay, int minute) { Alarm alarm = AlarmUtilities.createDefaultAlarm(); String min = minute < 10 ? "0" + minute : "" + minute; if (hourOfDay == 12) { alarm.setAmPm("PM"); alarm.setHour(hourOfDay); alarm.setHourFormatted((hourOfDay) + ":" + min); } else if (hourOfDay > 12) { alarm.setAmPm("PM"); alarm.setHour(hourOfDay - 12); alarm.setHourFormatted((hourOfDay - 12) + ":" + min); } else { if (hourOfDay == 0) { hourOfDay = 12; } alarm.setAmPm("AM"); alarm.setHour(hourOfDay); alarm.setHourFormatted(hourOfDay + ":" + min); } alarm.setMinute(minute); Intent intent = new Intent(getApplicationContext(), AddAlarmActivity.class); intent.putExtra(Constant.actionAlarmKey, Constant.addAlarm); intent.putExtra(Constant.alarmSerializableKey, alarm); startActivity(intent); } }, hour, minute, false); timePickerDialog.show(getSupportFragmentManager(), "tag"); return true; case R.id.itCurrentMonth: actualItem = menuItem.getItemId(); menuItem.setChecked(true); showFragment(R.id.itCurrentMonth); getSupportActionBar().setTitle(title); return true; /* case R.id.itConfig: actualItem = menuItem.getItemId(); menuItem.setChecked(true); showFragment(R.id.itConfig); getSupportActionBar().setTitle(title); closeDrawer(); return true; */ case R.id.itAbout: AlertDialog.Builder alertBuilder = new AlertDialog.Builder(MainActivity.this); WebView wvLegal = (WebView) LayoutInflater.from(getApplication()) .inflate(R.layout.web_view_legal, null); wvLegal.loadData(getString(R.string.html_legal), "text/html", "UTF-8"); wvLegal.setWebChromeClient(new WebChromeClient()); alertBuilder.setView(wvLegal); alertBuilder.setTitle(R.string.txt_about_app); alertBuilder.setCancelable(true).setPositiveButton(getString(R.string.txt_button_ok), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { dialog.dismiss(); } }); alertBuilder.show(); return true; default: return false; } } }); } private void closeDrawer() { drawerLayout.closeDrawer(GravityCompat.START); } private void setupDrawerLayout() { drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout); drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close); drawerLayout.setDrawerListener(drawerToggle); drawerToggle.syncState(); } public void showFragment(int itemId) { try { Fragment fragmentToShow = null; ArrayList<Alarm> alarmsConfigured = AlarmDataBase.getAlarmList(this.dataBaseManager); switch (itemId) { case R.id.itMyAlarms: if (alarmsConfigured.isEmpty()) { fragmentToShow = new AlarmEmptyFragment(); } else { fragmentToShow = new AlarmListFragment(); } break; case R.id.itCurrentMonth: fragmentToShow = new CalendarHolidayFragment(); break; /* case R.id.itConfig: fragmentToShow = new AlarmEmptyFragment(); break; */ default: break; } if (fragmentToShow != null) { FragmentManager fragmentManager = getSupportFragmentManager(); fragmentManager.beginTransaction() .replace(R.id.contentFrame, fragmentToShow, fragmentToShow.getClass().getName()).commit(); } } catch (Exception e) { Log.e(this.getClass().getName(), e.getLocalizedMessage(), e); } } @Override protected void onPostResume() { super.onPostResume(); showFragment(actualItem); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. 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 protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putInt(actualFragmentKey, actualItem); } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); AlarmReceiver.setAlarms(this); } }