ReferencePointNavigation · ChronoVortex · Jun 3, 2019
diff --git a/app/build.gradle b/app/build.gradle
@@ -112,6 +112,7 @@ dependencies {
 
     implementation "android.arch.persistence.room:rxjava2:$rootProject.roomVersion"
     implementation "android.arch.persistence.room:runtime:$rootProject.roomVersion"
+    implementation 'com.android.support:support-v4:28.0.0'
     annotationProcessor "android.arch.persistence.room:compiler:$rootProject.roomVersion"
 
     // Dagger dependencies

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
@@ -1,43 +1,47 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    package="com.navatar"
-    >
+    package="com.navatar">
 
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.VIBRATE" />
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
 
     <application
-        android:hardwareAccelerated="true"
+        android:name=".NavatarApplication"
         android:allowBackup="false"
+        android:hardwareAccelerated="true"
         android:icon="@drawable/app_icon"
         android:label="@string/appName"
-        tools:replace="android:icon"
-        android:name=".NavatarApplication">
-
+        tools:replace="android:icon">
+        <activity
+            android:name=".SettingsActivity"
+            android:label="@string/title_activity_settings"
+            android:parentActivityName=".maps.MapsActivity">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value="com.navatar.maps.MapsActivity" />
+        </activity>
         <activity
             android:name=".main.MainActivity"
             android:screenOrientation="portrait"
-            android:theme="@style/Theme.AppCompat.DayNight">
-        </activity>
-
+            android:theme="@style/Theme.AppCompat.DayNight"></activity>
         <activity
             android:name=".maps.MapsActivity"
             android:screenOrientation="portrait"
             android:theme="@style/Theme.AppCompat.Light">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-
         <activity
             android:name=".navigation.NavigationActivity"
             android:screenOrientation="portrait"
-            android:theme="@style/Theme.AppCompat.DayNight"/>
+            android:theme="@style/Theme.AppCompat.DayNight" />
 
         <service
             android:name=".maps.MapService"
@@ -47,7 +51,6 @@
             android:name=".sensing.SensingService"
             android:icon="@drawable/ic_launcher"
             android:label="@string/sensing_service_name" />
-
     </application>
 
 </manifest>
diff --git a/app/src/main/java/com/navatar/SettingsActivity.java b/app/src/main/java/com/navatar/SettingsActivity.java
@@ -0,0 +1,269 @@
+package com.navatar;
+
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.Configuration;
+import android.media.Ringtone;
+import android.media.RingtoneManager;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.preference.ListPreference;
+import android.preference.Preference;
+import android.preference.PreferenceActivity;
+import android.app.ActionBar;
+import android.preference.PreferenceFragment;
+import android.preference.PreferenceManager;
+import android.preference.RingtonePreference;
+import android.text.TextUtils;
+import android.view.MenuItem;
+import android.support.v4.app.NavUtils;
+
+//import com.navatar.mock.R;
+
+import java.util.List;
+
+/**
+ * A {@link PreferenceActivity} that presents a set of application settings. On
+ * handset devices, settings are presented as a single list. On tablets,
+ * settings are split by category, with category headers shown to the left of
+ * the list of settings.
+ * <p>
+ * See <a href="http://developer.android.com/design/patterns/settings.html">
+ * Android Design: Settings</a> for design guidelines and the <a
+ * href="http://developer.android.com/guide/topics/ui/settings.html">Settings
+ * API Guide</a> for more information on developing a Settings UI.
+ */
+public class SettingsActivity extends PreferenceActivity {
+
+    /**
+     * A preference value change listener that updates the preference's summary
+     * to reflect its new value.
+     */
+    private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() {
+        @Override
+        public boolean onPreferenceChange(Preference preference, Object value) {
+            String stringValue = value.toString();
+
+            if (preference instanceof ListPreference) {
+                // For list preferences, look up the correct display value in
+                // the preference's 'entries' list.
+                ListPreference listPreference = (ListPreference) preference;
+                int index = listPreference.findIndexOfValue(stringValue);
+
+                // Set the summary to reflect the new value.
+                preference.setSummary(
+                        index >= 0
+                                ? listPreference.getEntries()[index]
+                                : null);
+
+            } else if (preference instanceof RingtonePreference) {
+                // For ringtone preferences, look up the correct display value
+                // using RingtoneManager.
+                if (TextUtils.isEmpty(stringValue)) {
+                    // Empty values correspond to 'silent' (no ringtone).
+                    preference.setSummary(R.string.pref_ringtone_silent);
+
+                } else {
+                    Ringtone ringtone = RingtoneManager.getRingtone(
+                            preference.getContext(), Uri.parse(stringValue));
+
+                    if (ringtone == null) {
+                        // Clear the summary if there was a lookup error.
+                        preference.setSummary(null);
+                    } else {
+                        // Set the summary to reflect the new ringtone display
+                        // name.
+                        String name = ringtone.getTitle(preference.getContext());
+                        preference.setSummary(name);
+                    }
+                }
+
+            } else {
+                // For all other preferences, set the summary to the value's
+                // simple string representation.
+                preference.setSummary(stringValue);
+            }
+            return true;
+        }
+    };
+
+    /**
+     * Helper method to determine if the device has an extra-large screen. For
+     * example, 10" tablets are extra-large.
+     */
+    private static boolean isXLargeTablet(Context context) {
+        return (context.getResources().getConfiguration().screenLayout
+                & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE;
+    }
+
+    /**
+     * Binds a preference's summary to its value. More specifically, when the
+     * preference's value is changed, its summary (line of text below the
+     * preference title) is updated to reflect the value. The summary is also
+     * immediately updated upon calling this method. The exact display format is
+     * dependent on the type of preference.
+     *
+     * @see #sBindPreferenceSummaryToValueListener
+     */
+    private static void bindPreferenceSummaryToValue(Preference preference) {
+        // Set the listener to watch for value changes.
+        preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
+
+        // Trigger the listener immediately with the preference's
+        // current value.
+        sBindPreferenceSummaryToValueListener.onPreferenceChange(preference,
+                PreferenceManager
+                        .getDefaultSharedPreferences(preference.getContext())
+                        .getString(preference.getKey(), ""));
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setupActionBar();
+    }
+
+    /**
+     * Set up the {@link android.app.ActionBar}, if the API is available.
+     */
+    private void setupActionBar() {
+        ActionBar actionBar = getActionBar();
+        if (actionBar != null) {
+            // Show the Up button in the action bar.
+            actionBar.setDisplayHomeAsUpEnabled(true);
+        }
+    }
+
+    @Override
+    public boolean onMenuItemSelected(int featureId, MenuItem item) {
+        int id = item.getItemId();
+        if (id == android.R.id.home) {
+            if (!super.onMenuItemSelected(featureId, item)) {
+                NavUtils.navigateUpFromSameTask(this);
+            }
+            return true;
+        }
+        return super.onMenuItemSelected(featureId, item);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean onIsMultiPane() {
+        return isXLargeTablet(this);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
+    public void onBuildHeaders(List<Header> target) {
+        loadHeadersFromResource(R.xml.pref_headers, target);
+    }
+
+    /**
+     * This method stops fragment injection in malicious applications.
+     * Make sure to deny any unknown fragments here.
+     */
+    protected boolean isValidFragment(String fragmentName) {
+        return PreferenceFragment.class.getName().equals(fragmentName)
+                || GeneralPreferenceFragment.class.getName().equals(fragmentName)
+                || DataSyncPreferenceFragment.class.getName().equals(fragmentName)
+                || NotificationPreferenceFragment.class.getName().equals(fragmentName);
+    }
+
+    /**
+     * This fragment shows general preferences only. It is used when the
+     * activity is showing a two-pane settings UI.
+     */
+    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
+    public static class GeneralPreferenceFragment extends PreferenceFragment {
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            addPreferencesFromResource(R.xml.pref_general);
+            setHasOptionsMenu(true);
+
+            // Bind the summaries of EditText/List/Dialog/Ringtone preferences
+            // to their values. When their values change, their summaries are
+            // updated to reflect the new value, per the Android Design
+            // guidelines.
+            bindPreferenceSummaryToValue(findPreference("example_text"));
+            bindPreferenceSummaryToValue(findPreference("example_list"));
+        }
+
+        @Override
+        public boolean onOptionsItemSelected(MenuItem item) {
+            int id = item.getItemId();
+            if (id == android.R.id.home) {
+                startActivity(new Intent(getActivity(), SettingsActivity.class));
+                return true;
+            }
+            return super.onOptionsItemSelected(item);
+        }
+    }
+
+    /**
+     * This fragment shows notification preferences only. It is used when the
+     * activity is showing a two-pane settings UI.
+     */
+    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
+    public static class NotificationPreferenceFragment extends PreferenceFragment {
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            addPreferencesFromResource(R.xml.pref_notification);
+            setHasOptionsMenu(true);
+
+            // Bind the summaries of EditText/List/Dialog/Ringtone preferences
+            // to their values. When their values change, their summaries are
+            // updated to reflect the new value, per the Android Design
+            // guidelines.
+            bindPreferenceSummaryToValue(findPreference("notifications_new_message_ringtone"));
+        }
+
+        @Override
+        public boolean onOptionsItemSelected(MenuItem item) {
+            int id = item.getItemId();
+            if (id == android.R.id.home) {
+                startActivity(new Intent(getActivity(), SettingsActivity.class));
+                return true;
+            }
+            return super.onOptionsItemSelected(item);
+        }
+    }
+
+    /**
+     * This fragment shows data and sync preferences only. It is used when the
+     * activity is showing a two-pane settings UI.
+     */
+    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
+    public static class DataSyncPreferenceFragment extends PreferenceFragment {
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            addPreferencesFromResource(R.xml.pref_data_sync);
+            setHasOptionsMenu(true);
+
+            // Bind the summaries of EditText/List/Dialog/Ringtone preferences
+            // to their values. When their values change, their summaries are
+            // updated to reflect the new value, per the Android Design
+            // guidelines.
+            bindPreferenceSummaryToValue(findPreference("sync_frequency"));
+        }
+
+        @Override
+        public boolean onOptionsItemSelected(MenuItem item) {
+            int id = item.getItemId();
+            if (id == android.R.id.home) {
+                startActivity(new Intent(getActivity(), SettingsActivity.class));
+                return true;
+            }
+            return super.onOptionsItemSelected(item);
+        }
+    }
+}
diff --git a/app/src/main/java/com/navatar/maps/MapsFragment.java b/app/src/main/java/com/navatar/maps/MapsFragment.java
@@ -24,6 +24,7 @@
 import com.journeyapps.barcodescanner.BarcodeResult;
 import com.journeyapps.barcodescanner.DecoratedBarcodeView;
 import com.journeyapps.barcodescanner.DefaultDecoderFactory;
+import com.navatar.SettingsActivity;
 import com.navatar.common.TextToSpeechProvider;
 import com.navatar.location.details.QRCodeScanner;
 import com.navatar.navigation.NavigationActivity;
@@ -55,6 +56,9 @@ public class MapsFragment extends DaggerFragment implements MapsContract.View {
 
     private final static String TAG = MapsFragment.class.getSimpleName();
 
+    @BindView(R.id.settingsButton)
+    Button settingsButton;
+
     @BindView(R.id.mapSpinner)
     Spinner mapSpinner;
 
@@ -142,9 +146,12 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
         ButterKnife.bind(this, root);
         spinners = new LinkedList<>();
 
+        settingsButton.setOnClickListener(v -> {
+            startActivity(new Intent(getContext(), SettingsActivity.class));
+        });
+
         startNavigationButton.setOnClickListener(v -> {
-            Intent intent = new Intent(getContext(), NavigationActivity.class);
-            startActivity(intent);
+            startActivity(new Intent(getContext(), NavigationActivity.class));
         });
 
         showNavigationButton.setOnClickListener(v -> {

diff --git a/app/src/main/res/drawable/ic_info_black_24dp.xml b/app/src/main/res/drawable/ic_info_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zm1,15h-2v-6h2v6zm0,-8h-2V7h2v2z" />
+</vector>
diff --git a/app/src/main/res/drawable/ic_notifications_black_24dp.xml b/app/src/main/res/drawable/ic_notifications_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M11.5,22c1.1,0 2,-0.9 2,-2h-4c0,1.1 0.9,2 2,2zm6.5,-6v-5.5c0,-3.07 -2.13,-5.64 -5,-6.32V3.5c0,-0.83 -0.67,-1.5 -1.5,-1.5S10,2.67 10,3.5v0.68c-2.87,0.68 -5,3.25 -5,6.32V16l-2,2v1h17v-1l-2,-2z" />
+</vector>