Java tutorial
/* * Copyright 20132016 Michael von Glasow. * * This file is part of LSRN Tools. * * LSRN Tools is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * LSRN Tools is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with LSRN Tools. If not, see <http://www.gnu.org/licenses/>. */ package com.vonglasow.michael.satstat.ui; import java.io.File; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.io.PrintStream; import java.lang.Thread.UncaughtExceptionHandler; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Arrays; import java.util.Date; import java.util.HashSet; import java.util.List; import java.util.Locale; import java.util.Set; import java.util.TimeZone; import org.mapsforge.map.android.graphics.AndroidGraphicFactory; import android.Manifest; import android.annotation.TargetApi; import android.app.NotificationManager; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.SharedPreferences; import android.content.SharedPreferences.OnSharedPreferenceChangeListener; import android.content.pm.ActivityInfo; import android.content.pm.PackageManager; import android.content.res.Configuration; import android.graphics.drawable.Drawable; import android.hardware.Sensor; import android.hardware.SensorEvent; import android.hardware.SensorEventListener; import android.hardware.SensorManager; import android.location.GpsSatellite; import android.location.GpsStatus; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.net.ConnectivityManager; import android.net.Uri; import android.net.wifi.WifiManager; import android.os.Build; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.design.widget.TabLayout; import android.support.v4.app.ActivityCompat; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.content.ContextCompat; import android.support.v4.view.ViewPager; import android.support.v7.app.ActionBar; import android.support.v7.app.AppCompatActivity; import android.support.v7.view.ContextThemeWrapper; import android.telephony.CellInfo; import android.telephony.CellLocation; import android.telephony.PhoneStateListener; import static android.telephony.PhoneStateListener.LISTEN_CELL_INFO; import static android.telephony.PhoneStateListener.LISTEN_CELL_LOCATION; import static android.telephony.PhoneStateListener.LISTEN_DATA_CONNECTION_STATE; import static android.telephony.PhoneStateListener.LISTEN_NONE; import static android.telephony.PhoneStateListener.LISTEN_SIGNAL_STRENGTHS; import android.telephony.SignalStrength; import android.telephony.TelephonyManager; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.Surface; import android.view.ViewGroup.LayoutParams; import android.view.WindowManager; import android.widget.LinearLayout; import android.widget.Toast; import com.vonglasow.michael.satstat.Const; import com.vonglasow.michael.satstat.GpsEventReceiver; import com.vonglasow.michael.satstat.R; import com.vonglasow.michael.satstat.data.CellTower; import com.vonglasow.michael.satstat.data.CellTowerList; public class MainActivity extends AppCompatActivity implements GpsStatus.Listener, LocationListener, OnSharedPreferenceChangeListener, SensorEventListener { private static final String TAG = MainActivity.class.getSimpleName(); /** * The {@link android.support.v4.view.PagerAdapter} that will provide * fragments for each of the sections. We use a * {@link android.support.v4.app.FragmentPagerAdapter} derivative, which * will keep every loaded fragment in memory. If this becomes too memory * intensive, it may be best to switch to a * {@link android.support.v4.app.FragmentStatePagerAdapter}. */ SectionsPagerAdapter mSectionsPagerAdapter; /** * The {@link ViewPager} that will host the section contents. */ ViewPager mViewPager; /** * The tab view to switch between the fragments of the MainView. */ TabLayout mTabLayout; /** * Whether the activity is stopped. */ boolean isStopped; /** * Whether we are running on a wide-screen device */ boolean isWideScreen; //The rate in microseconds at which we would like to receive updates from the sensors. //private static final int iSensorRate = SensorManager.SENSOR_DELAY_UI; private static final int iSensorRate = 200000; //Default is 20,000 for accel, 5,000 for gyro GpsSectionFragment gpsSectionFragment = null; SensorSectionFragment sensorSectionFragment = null; RadioSectionFragment radioSectionFragment = null; MapSectionFragment mapSectionFragment = null; TelephonyManager telephonyManager; ConnectivityManager connectivityManager; WifiManager wifiManager; LocationManager locationManager; SensorManager sensorManager; boolean[] permsRequested = new boolean[Const.PERM_REQUEST_MAX + 1]; private Sensor mOrSensor; private Sensor mAccSensor; private Sensor mGyroSensor; private Sensor mMagSensor; private Sensor mLightSensor; private Sensor mProximitySensor; private Sensor mPressureSensor; private Sensor mHumiditySensor; private Sensor mTempSensor; private long mOrLast = 0; private long mAccLast = 0; private long mGyroLast = 0; private long mMagLast = 0; private long mLightLast = 0; private long mProximityLast = 0; private long mPressureLast = 0; private long mHumidityLast = 0; private long mTempLast = 0; /** * Converts screen rotation to orientation for devices with a naturally tall screen. */ private final static Integer OR_FROM_ROT_TALL[] = { ActivityInfo.SCREEN_ORIENTATION_PORTRAIT, ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE, ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT, ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE }; /** * Converts screen rotation to orientation for devices with a naturally wide screen. */ private final static Integer OR_FROM_ROT_WIDE[] = { ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE, ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT, ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE, ActivityInfo.SCREEN_ORIENTATION_PORTRAIT }; SharedPreferences mSharedPreferences; boolean prefUnitType = true; boolean prefKnots = false; int prefCoord = Const.KEY_PREF_COORD_DECIMAL; boolean prefUtc = false; boolean prefCid = false; boolean prefCid2 = false; int prefWifiSort = 0; boolean prefMapOffline = false; String prefMapPath = Const.MAP_PATH_DEFAULT; /** * The {@link PhoneStateListener} for getting radio network updates */ private final PhoneStateListener mPhoneStateListener = new PhoneStateListener() { @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) public void onCellInfoChanged(List<CellInfo> cellInfo) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) return; if (radioSectionFragment != null) radioSectionFragment.updateCellData(null, null, cellInfo); } public void onCellLocationChanged(CellLocation location) { if (radioSectionFragment != null) radioSectionFragment.updateCellData(location, null, null); } public void onDataConnectionStateChanged(int state, int networkType) { if (radioSectionFragment != null) radioSectionFragment.onNetworkTypeChanged(networkType); } public void onSignalStrengthsChanged(SignalStrength signalStrength) { if (radioSectionFragment != null) radioSectionFragment.updateCellData(null, signalStrength, null); } }; /** * The {@link BroadcastReceiver} for getting radio network updates */ private final BroadcastReceiver mWifiScanReceiver = new BroadcastReceiver() { @Override public void onReceive(Context c, Intent intent) { if (intent.getAction() == WifiManager.SCAN_RESULTS_AVAILABLE_ACTION) { if (radioSectionFragment != null) { radioSectionFragment.scanResults = wifiManager.getScanResults(); radioSectionFragment.refreshWifiResults(); } } else { //something has changed about WiFi setup, rescan wifiManager.startScan(); } } }; private Thread.UncaughtExceptionHandler defaultUEH; /** * Converts a bearing (in degrees) into a directional name. */ public static String formatOrientation(Context context, float bearing) { return (bearing < 11.25) ? context.getString(R.string.value_N) : (bearing < 33.75) ? context.getString(R.string.value_NNE) : (bearing < 56.25) ? context.getString(R.string.value_NE) : (bearing < 78.75) ? context.getString(R.string.value_ENE) : (bearing < 101.25) ? context.getString(R.string.value_E) : (bearing < 123.75) ? context.getString(R.string.value_ESE) : (bearing < 146.25) ? context.getString(R.string.value_SE) : (bearing < 168.75) ? context.getString(R.string.value_SSE) : (bearing < 191.25) ? context .getString(R.string.value_S) : (bearing < 213.75) ? context.getString( R.string.value_SSW) : (bearing < 236.25) ? context.getString( R.string.value_SW) : (bearing < 258.75) ? context .getString( R.string.value_WSW) : (bearing < 280.25) ? context .getString( R.string.value_W) : (bearing < 302.75) ? context .getString( R.string.value_WNW) : (bearing < 325.25) ? context .getString( R.string.value_NW) : (bearing < 347.75) ? context .getString( R.string.value_NNW) : context .getString( R.string.value_N); } /** * Returns the serving cell. * <p> * This method iterates through the cell tower lists passed in * {@code lists} and looks for any entries marked as the serving cell. * * @param lists An array of {@link com.vonglasow.michael.satstat.data.CellTowerList} * instances * @return The serving cell, if one is found, or {@code null} if none is * found. If multiple serving cells are found in {@code lists}, no * assertion is made which cell will be returned, or even that results * will be consistent between calls. */ public static CellTower getServingCell(CellTowerList[] lists) { for (CellTowerList<CellTower> towers : lists) { for (CellTower cell : towers.getAll()) if (cell.hasSource() && cell.isServing()) return cell; } return null; } /** * Called when a sensor's accuracy has changed. Does nothing. */ public void onAccuracyChanged(Sensor sensor, int accuracy) { } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); defaultUEH = Thread.getDefaultUncaughtExceptionHandler(); Thread.setDefaultUncaughtExceptionHandler(new UncaughtExceptionHandler() { public void uncaughtException(Thread t, Throwable e) { Context c = getApplicationContext(); File dumpDir = c.getExternalFilesDir(null); DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss", Locale.ROOT); fmt.setTimeZone(TimeZone.getTimeZone("UTC")); String fileName = String.format("satstat-%s.log", fmt.format(new Date(System.currentTimeMillis()))); File dumpFile = new File(dumpDir, fileName); PrintStream s; try { InputStream buildInStream = getResources().openRawResource(R.raw.build); s = new PrintStream(dumpFile); s.append("SatStat build: "); int i; try { i = buildInStream.read(); while (i != -1) { s.write(i); i = buildInStream.read(); } buildInStream.close(); } catch (IOException e1) { e1.printStackTrace(); } s.append("\n\n"); e.printStackTrace(s); s.flush(); s.close(); Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); Uri contentUri = Uri.fromFile(dumpFile); mediaScanIntent.setData(contentUri); c.sendBroadcast(mediaScanIntent); } catch (FileNotFoundException e2) { e2.printStackTrace(); } defaultUEH.uncaughtException(t, e); } }); mSharedPreferences = PreferenceManager.getDefaultSharedPreferences(this); mSharedPreferences.registerOnSharedPreferenceChangeListener(this); prefUnitType = mSharedPreferences.getBoolean(Const.KEY_PREF_UNIT_TYPE, prefUnitType); prefKnots = mSharedPreferences.getBoolean(Const.KEY_PREF_KNOTS, prefKnots); prefCoord = Integer .valueOf(mSharedPreferences.getString(Const.KEY_PREF_COORD, Integer.toString(prefCoord))); prefUtc = mSharedPreferences.getBoolean(Const.KEY_PREF_UTC, prefUtc); prefCid = mSharedPreferences.getBoolean(Const.KEY_PREF_CID, prefCid); prefCid2 = mSharedPreferences.getBoolean(Const.KEY_PREF_CID2, prefCid2); prefWifiSort = Integer .valueOf(mSharedPreferences.getString(Const.KEY_PREF_WIFI_SORT, Integer.toString(prefWifiSort))); prefMapOffline = mSharedPreferences.getBoolean(Const.KEY_PREF_MAP_OFFLINE, prefMapOffline); prefMapPath = mSharedPreferences.getString(Const.KEY_PREF_MAP_PATH, prefMapPath); ActionBar actionBar = getSupportActionBar(); setContentView(R.layout.activity_main); // Find out default screen orientation Configuration config = getResources().getConfiguration(); WindowManager wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE); int rot = wm.getDefaultDisplay().getRotation(); isWideScreen = (config.orientation == Configuration.ORIENTATION_LANDSCAPE && (rot == Surface.ROTATION_0 || rot == Surface.ROTATION_180) || config.orientation == Configuration.ORIENTATION_PORTRAIT && (rot == Surface.ROTATION_90 || rot == Surface.ROTATION_270)); Log.d(TAG, "isWideScreen=" + Boolean.toString(isWideScreen)); // Create the adapter that will return a fragment for each of the // primary sections of the app. mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); // Set up the ViewPager with the sections adapter. mViewPager = (ViewPager) findViewById(R.id.pager); mViewPager.setAdapter(mSectionsPagerAdapter); Context ctx = new ContextThemeWrapper(getApplication(), R.style.AppTheme); mTabLayout = new TabLayout(ctx); LinearLayout.LayoutParams mTabLayoutParams = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); mTabLayout.setLayoutParams(mTabLayoutParams); for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) { TabLayout.Tab newTab = mTabLayout.newTab(); newTab.setIcon(mSectionsPagerAdapter.getPageIcon(i)); mTabLayout.addTab(newTab); } actionBar.setDisplayShowCustomEnabled(true); actionBar.setCustomView(mTabLayout); mTabLayout.setOnTabSelectedListener(new TabLayout.ViewPagerOnTabSelectedListener(mViewPager)); mViewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(mTabLayout)); // This is needed by the mapsforge library. AndroidGraphicFactory.createInstance(this.getApplication()); // Get system services for event delivery locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE); sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE); mOrSensor = sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION); mAccSensor = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); mGyroSensor = sensorManager.getDefaultSensor(Sensor.TYPE_GYROSCOPE); mMagSensor = sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD); mLightSensor = sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT); mProximitySensor = sensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY); mPressureSensor = sensorManager.getDefaultSensor(Sensor.TYPE_PRESSURE); mHumiditySensor = sensorManager.getDefaultSensor(Sensor.TYPE_RELATIVE_HUMIDITY); mTempSensor = sensorManager.getDefaultSensor(Sensor.TYPE_AMBIENT_TEMPERATURE); telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE); connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override protected void onDestroy() { mSharedPreferences.unregisterOnSharedPreferenceChangeListener(this); super.onDestroy(); } /** * Called when the status of the GPS changes. Updates GPS display. */ public void onGpsStatusChanged(int event) { GpsStatus status = locationManager.getGpsStatus(null); int satsInView = 0; int satsUsed = 0; Iterable<GpsSatellite> sats = status.getSatellites(); for (GpsSatellite sat : sats) { satsInView++; if (sat.usedInFix()) { satsUsed++; } } if (gpsSectionFragment != null) { gpsSectionFragment.onGpsStatusChanged(status, satsInView, satsUsed, sats); } if (mapSectionFragment != null) { mapSectionFragment.onGpsStatusChanged(status, satsInView, satsUsed, sats); } } /** * Called when a new location is found by a registered location provider. * Stores the location and updates GPS display and map view. */ public void onLocationChanged(Location location) { // update map view if (mapSectionFragment != null) { mapSectionFragment.onLocationChanged(location); } // update GPS view if ((location.getProvider().equals(LocationManager.GPS_PROVIDER)) && (gpsSectionFragment != null)) { gpsSectionFragment.onLocationChanged(location); } } /** * Called when a menu item is selected, and triggers the appropriate action. */ @Override public boolean onOptionsItemSelected(MenuItem item) { int itemId = item.getItemId(); if (itemId == R.id.action_agps) { Log.i(TAG, "User requested AGPS data update"); if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) GpsEventReceiver.refreshAgps(this, false, true); else ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.ACCESS_FINE_LOCATION }, Const.PERM_REQUEST_REFRESH_AGPS); return true; } else if (itemId == R.id.action_settings) { startActivity(new Intent(this, SettingsActivity.class)); return true; } else if (itemId == R.id.action_legend) { startActivity(new Intent(this, LegendActivity.class)); return true; } else if (itemId == R.id.action_about) { startActivity(new Intent(this, AboutActivity.class)); return true; } else { return super.onOptionsItemSelected(item); } } /** * Called when a location provider is disabled. Does nothing. */ public void onProviderDisabled(String provider) { } /** * Called when a location provider is enabled. Does nothing. */ public void onProviderEnabled(String provider) { } @Override public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) { StringBuilder messageBuilder = new StringBuilder(); for (int i = 0; i < grantResults.length; i++) if (permissions[i].equals(Manifest.permission.ACCESS_FINE_LOCATION)) { if (grantResults[i] == PackageManager.PERMISSION_GRANTED) { NotificationManager notificationManager = (NotificationManager) getSystemService( Context.NOTIFICATION_SERVICE); notificationManager.cancel(Const.PERM_REQUEST_LOCATION_NOTIFICATION); if (permsRequested[Const.PERM_REQUEST_PHONE_STATE_LISTENER]) { registerPhoneStateListener(); permsRequested[Const.PERM_REQUEST_PHONE_STATE_LISTENER] = false; } if (permsRequested[Const.PERM_REQUEST_LOCATION_UPDATES]) { requestLocationUpdates(); permsRequested[Const.PERM_REQUEST_LOCATION_UPDATES] = false; } if (permsRequested[Const.PERM_REQUEST_CELL_INFO]) { if (radioSectionFragment != null) radioSectionFragment.updateCellData(null, null, null); permsRequested[Const.PERM_REQUEST_CELL_INFO] = false; } if (requestCode == Const.PERM_REQUEST_REFRESH_AGPS) GpsEventReceiver.refreshAgps(this, false, true); } else if (requestCode == Const.PERM_REQUEST_REFRESH_AGPS) { if (messageBuilder.length() > 0) messageBuilder.append("\n"); messageBuilder.append(getString(R.string.status_perm_refresh_agps)); Log.w(TAG, "Location permission not granted, cannot update AGPS data"); } else { if (messageBuilder.length() > 0) messageBuilder.append("\n"); messageBuilder.append(getString(R.string.status_perm_location)); Log.w(TAG, "ACCESS_FINE_LOCATION permission not granted. Location and cell info will not be available."); } // if grantResults[i] } else if (permissions[i].equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) { if (grantResults[i] == PackageManager.PERMISSION_GRANTED) { if (permsRequested[Const.PERM_REQUEST_OFFLINE_MAP] && (mapSectionFragment != null)) { mapSectionFragment.onMapSourceChanged(); permsRequested[Const.PERM_REQUEST_OFFLINE_MAP] = false; } } else { if (messageBuilder.length() > 0) messageBuilder.append("\n"); messageBuilder.append(getString(R.string.status_perm_offline_map)); Log.w(TAG, "WRITE_EXTERNAL_STORAGE permission not granted. Offline map will not be available."); } } // if permissions[i].equals() // for i String message = messageBuilder.toString(); if (!message.isEmpty()) { int length = (message.contains("\n")) ? Toast.LENGTH_LONG : Toast.LENGTH_SHORT; Toast.makeText(this, message, length).show(); } } /** * Called when a sensor's reading changes. Updates sensor display and rotates sky plot according * to bearing. */ public void onSensorChanged(SensorEvent event) { //to enforce sensor rate boolean isRateElapsed = false; switch (event.sensor.getType()) { case Sensor.TYPE_ACCELEROMETER: isRateElapsed = (event.timestamp / 1000) - mAccLast >= iSensorRate; // if Z acceleration is greater than X/Y combined, lock rotation, else unlock if (Math.pow(event.values[2], 2) > Math.pow(event.values[0], 2) + Math.pow(event.values[1], 2)) { // workaround (SCREEN_ORIENTATION_LOCK is unsupported on API < 18) if (isWideScreen) setRequestedOrientation( OR_FROM_ROT_WIDE[this.getWindowManager().getDefaultDisplay().getRotation()]); else setRequestedOrientation( OR_FROM_ROT_TALL[this.getWindowManager().getDefaultDisplay().getRotation()]); } else { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED); } break; case Sensor.TYPE_ORIENTATION: isRateElapsed = (event.timestamp / 1000) - mOrLast >= iSensorRate; break; case Sensor.TYPE_GYROSCOPE: isRateElapsed = (event.timestamp / 1000) - mGyroLast >= iSensorRate; break; case Sensor.TYPE_MAGNETIC_FIELD: isRateElapsed = (event.timestamp / 1000) - mMagLast >= iSensorRate; break; case Sensor.TYPE_LIGHT: isRateElapsed = (event.timestamp / 1000) - mLightLast >= iSensorRate; break; case Sensor.TYPE_PROXIMITY: isRateElapsed = (event.timestamp / 1000) - mProximityLast >= iSensorRate; break; case Sensor.TYPE_PRESSURE: isRateElapsed = (event.timestamp / 1000) - mPressureLast >= iSensorRate; break; case Sensor.TYPE_RELATIVE_HUMIDITY: isRateElapsed = (event.timestamp / 1000) - mHumidityLast >= iSensorRate; break; case Sensor.TYPE_AMBIENT_TEMPERATURE: isRateElapsed = (event.timestamp / 1000) - mTempLast >= iSensorRate; break; } if (!isRateElapsed) return; switch (event.sensor.getType()) { case Sensor.TYPE_ACCELEROMETER: mAccLast = event.timestamp / 1000; break; case Sensor.TYPE_ORIENTATION: mOrLast = event.timestamp / 1000; break; case Sensor.TYPE_GYROSCOPE: mGyroLast = event.timestamp / 1000; break; case Sensor.TYPE_MAGNETIC_FIELD: mMagLast = event.timestamp / 1000; break; case Sensor.TYPE_LIGHT: mLightLast = event.timestamp / 1000; break; case Sensor.TYPE_PROXIMITY: mProximityLast = event.timestamp / 1000; break; case Sensor.TYPE_PRESSURE: mPressureLast = event.timestamp / 1000; break; case Sensor.TYPE_RELATIVE_HUMIDITY: mHumidityLast = event.timestamp / 1000; break; case Sensor.TYPE_AMBIENT_TEMPERATURE: mTempLast = event.timestamp / 1000; break; } if (sensorSectionFragment != null) { sensorSectionFragment.onSensorChanged(event); } if (gpsSectionFragment != null) { gpsSectionFragment.onSensorChanged(event); } } /** * Called when preferences are changed. * * This method processes changed to KEY_PREF_LOC_PROV, the list of selected * location providers. When called, it will unregister for all location * updates and re-register for updates from the selected location providers. * (This includes unregistering and immediately re-registering for those * providers which remain selected this is due to the fact that Android * does not support unregistering from a single location provider.) */ @Override public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { if (key.equals(Const.KEY_PREF_LOC_PROV)) { // user selected or deselected location providers, refresh list registerLocationProviders(); } else if (key.equals(Const.KEY_PREF_UNIT_TYPE)) { prefUnitType = sharedPreferences.getBoolean(Const.KEY_PREF_UNIT_TYPE, prefUnitType); } else if (key.equals(Const.KEY_PREF_KNOTS)) { prefKnots = sharedPreferences.getBoolean(Const.KEY_PREF_KNOTS, prefKnots); } else if (key.equals(Const.KEY_PREF_COORD)) { prefCoord = Integer .valueOf(mSharedPreferences.getString(Const.KEY_PREF_COORD, Integer.toString(prefCoord))); } else if (key.equals(Const.KEY_PREF_UTC)) { prefUtc = sharedPreferences.getBoolean(Const.KEY_PREF_UTC, prefUtc); } else if (key.equals(Const.KEY_PREF_CID)) { prefCid = sharedPreferences.getBoolean(Const.KEY_PREF_CID, prefCid); } else if (key.equals(Const.KEY_PREF_CID2)) { prefCid2 = sharedPreferences.getBoolean(Const.KEY_PREF_CID2, prefCid2); } else if (key.equals(Const.KEY_PREF_WIFI_SORT)) { prefWifiSort = Integer.valueOf( mSharedPreferences.getString(Const.KEY_PREF_WIFI_SORT, Integer.toString(prefWifiSort))); } else if (key.equals(Const.KEY_PREF_MAP_OFFLINE)) { prefMapOffline = sharedPreferences.getBoolean(Const.KEY_PREF_MAP_OFFLINE, prefMapOffline); if (mapSectionFragment != null) mapSectionFragment.onMapSourceChanged(); if (prefMapOffline && (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)) ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.WRITE_EXTERNAL_STORAGE }, Const.PERM_REQUEST_OFFLINE_MAP); } else if (key.equals(Const.KEY_PREF_MAP_PATH)) { prefMapPath = sharedPreferences.getString(Const.KEY_PREF_MAP_PATH, prefMapPath); if (mapSectionFragment != null) mapSectionFragment.onMapSourceChanged(); } else if (key.equals(Const.KEY_PREF_MAP_PURGE)) { if (sharedPreferences.getBoolean(Const.KEY_PREF_MAP_PURGE, false) && (mapSectionFragment != null)) mapSectionFragment.onMapSourceChanged(); } } @Override protected void onStart() { super.onStart(); isStopped = false; registerLocationProviders(); sensorManager.registerListener(this, mOrSensor, iSensorRate); sensorManager.registerListener(this, mAccSensor, iSensorRate); sensorManager.registerListener(this, mGyroSensor, iSensorRate); sensorManager.registerListener(this, mMagSensor, iSensorRate); sensorManager.registerListener(this, mLightSensor, iSensorRate); sensorManager.registerListener(this, mProximitySensor, iSensorRate); sensorManager.registerListener(this, mPressureSensor, iSensorRate); sensorManager.registerListener(this, mHumiditySensor, iSensorRate); sensorManager.registerListener(this, mTempSensor, iSensorRate); if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) registerPhoneStateListener(); else permsRequested[Const.PERM_REQUEST_PHONE_STATE_LISTENER] = true; // register for certain WiFi events indicating that new networks may be in range // An access point scan has completed, and results are available. registerReceiver(mWifiScanReceiver, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)); // The state of Wi-Fi connectivity has changed. registerReceiver(mWifiScanReceiver, new IntentFilter(WifiManager.NETWORK_STATE_CHANGED_ACTION)); // The RSSI (signal strength) has changed. registerReceiver(mWifiScanReceiver, new IntentFilter(WifiManager.RSSI_CHANGED_ACTION)); // A connection to the supplicant has been established or the connection to the supplicant has been lost. registerReceiver(mWifiScanReceiver, new IntentFilter(WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION)); permsRequested[Const.PERM_REQUEST_OFFLINE_MAP] = prefMapOffline; /* * Refresh map layers when offline map is selected and we have storage permission * (it might have been granted while we were gone, in which case we wouldn't have the layer) */ if (prefMapOffline && (mapSectionFragment != null) && (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED)) mapSectionFragment.onMapSourceChanged(); requestPermissions(); } /** * Called when a location provider's status changes. Does nothing. */ public void onStatusChanged(String provider, int status, Bundle extras) { } @Override protected void onStop() { isStopped = true; locationManager.removeUpdates(this); locationManager.removeGpsStatusListener(this); sensorManager.unregisterListener(this); telephonyManager.listen(mPhoneStateListener, LISTEN_NONE); try { unregisterReceiver(mWifiScanReceiver); } catch (IllegalArgumentException e) { // sometimes the receiver isn't registered, make sure we don't crash Log.d(TAG, "WifiScanReceiver was never registered, caught exception"); } // we'll just skip that so locations will get invalidated in any case //providerInvalidationHandler.removeCallbacksAndMessages(null); super.onStop(); } /** * Registers for updates with selected location providers. */ protected void registerLocationProviders() { Set<String> providers = new HashSet<String>( mSharedPreferences.getStringSet(Const.KEY_PREF_LOC_PROV, new HashSet<String>(Arrays .asList(new String[] { LocationManager.GPS_PROVIDER, LocationManager.NETWORK_PROVIDER })))); locationManager.removeUpdates(this); if (mapSectionFragment != null) mapSectionFragment.onLocationProvidersChanged(providers); if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) requestLocationUpdates(); else permsRequested[Const.PERM_REQUEST_LOCATION_UPDATES] = true; } /** * Registers the {@link PhoneStateListener} for all necessary events */ private void registerPhoneStateListener() { telephonyManager.listen(mPhoneStateListener, (LISTEN_CELL_INFO | LISTEN_CELL_LOCATION | LISTEN_DATA_CONNECTION_STATE | LISTEN_SIGNAL_STRENGTHS)); } /** * Requests location updates from the selected location providers. * * This method is intended to be called by {@link #registerLocationProviders(Context)} or by * {@link #onRequestPermissionsResult(int, String[], int[])}, depending on whether permissions need to be * requested. */ private void requestLocationUpdates() { Set<String> providers = new HashSet<String>( mSharedPreferences.getStringSet(Const.KEY_PREF_LOC_PROV, new HashSet<String>(Arrays .asList(new String[] { LocationManager.GPS_PROVIDER, LocationManager.NETWORK_PROVIDER })))); List<String> allProviders = locationManager.getAllProviders(); if (!isStopped) { for (String pr : providers) { if (allProviders.indexOf(pr) >= 0) { try { locationManager.requestLocationUpdates(pr, 0, 0, this); Log.d(TAG, "Registered with provider: " + pr); } catch (SecurityException e) { Log.w(TAG, "Permission not granted for " + pr + " location provider. Data display will not be available for this provider."); } } else { Log.w(TAG, "No " + pr + " location provider found. Data display will not be available for this provider."); } } } try { // if GPS is not selected, request location updates but don't store location if ((!providers.contains(LocationManager.GPS_PROVIDER)) && (!isStopped) && (allProviders.indexOf(LocationManager.GPS_PROVIDER) >= 0)) locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this); locationManager.addGpsStatusListener(this); } catch (SecurityException e) { Log.w(TAG, "Permission not granted for " + LocationManager.GPS_PROVIDER + " location provider. Data display will not be available for this provider."); } } private void requestPermissions() { ArrayList<String> perms = new ArrayList<String>(); if (permsRequested[Const.PERM_REQUEST_PHONE_STATE_LISTENER] || permsRequested[Const.PERM_REQUEST_LOCATION_UPDATES] || permsRequested[Const.PERM_REQUEST_CELL_INFO]) { if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) perms.add(Manifest.permission.ACCESS_FINE_LOCATION); } if (permsRequested[Const.PERM_REQUEST_OFFLINE_MAP]) { if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) perms.add(Manifest.permission.WRITE_EXTERNAL_STORAGE); } if (perms.size() > 0) ActivityCompat.requestPermissions(this, perms.toArray(new String[] {}), Const.PERM_REQUEST_STARTUP); } /** * A {@link FragmentPagerAdapter} that returns a fragment corresponding to * one of the sections/tabs/pages. */ public class SectionsPagerAdapter extends FragmentPagerAdapter { public SectionsPagerAdapter(FragmentManager fm) { super(fm); } @Override public Fragment getItem(int position) { // getItem is called to instantiate the fragment for the given page. // Return a DummySectionFragment (defined as a static inner class // below) with the page number as its lone argument. Fragment fragment; switch (position) { case 0: fragment = new GpsSectionFragment(); return fragment; case 1: fragment = new SensorSectionFragment(); return fragment; case 2: fragment = new RadioSectionFragment(); return fragment; case 3: fragment = new MapSectionFragment(); return fragment; } return null; } @Override public int getCount() { // Show 4 total pages. return 4; } public Drawable getPageIcon(int position) { switch (position) { case 0: return getResources().getDrawable(R.drawable.ic_action_gps); case 1: return getResources().getDrawable(R.drawable.ic_action_sensor); case 2: return getResources().getDrawable(R.drawable.ic_action_radio); case 3: return getResources().getDrawable(R.drawable.ic_action_map); } return null; } @Override public CharSequence getPageTitle(int position) { Locale l = Locale.getDefault(); switch (position) { case 0: return getString(R.string.title_section1).toUpperCase(l); case 1: return getString(R.string.title_section2).toUpperCase(l); case 2: return getString(R.string.title_section3).toUpperCase(l); case 3: return getString(R.string.title_section4).toUpperCase(l); } return null; } } }