initial ui for the dropdown track selection (see #10)

app/build.gradle

@@ -22,9 +22,9 @@ android {
 
 dependencies {
     compile fileTree(include: ['*.jar'], dir: 'libs')
-    compile 'com.android.support:appcompat-v7:25.1.0'
-    compile 'com.android.support:design:25.1.0'
-    compile 'com.android.support:cardview-v7:25.1.0'
+    compile 'com.android.support:appcompat-v7:25.1.1'
+    compile 'com.android.support:design:25.1.1'
+    compile 'com.android.support:cardview-v7:25.1.1'
     compile 'org.osmdroid:osmdroid-android:5.6.3'
     compile 'com.google.code.gson:gson:2.8.0'
 }

app/src/main/java/org/y20k/trackbook/MainActivityMapFragment.java

@@ -622,6 +622,9 @@ public class MainActivityMapFragment extends Fragment implements TrackbookKeys {
             LocalBroadcastManager.getInstance(mActivity).sendBroadcast(i);
         }
     }
+    /**
+     * End of inner class
+     */
 
 
     /**
@@ -651,5 +654,8 @@ public class MainActivityMapFragment extends Fragment implements TrackbookKeys {
             mStorageHelper.deleteTempFile();
         }
     }
+    /**
+     * End of inner class
+     */
 
 }

app/src/main/java/org/y20k/trackbook/MainActivityTrackFragment.java

@@ -32,6 +32,8 @@ import android.support.v4.content.LocalBroadcastManager;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.Spinner;
 import android.widget.TextView;
 
 import org.osmdroid.api.IMapController;
@@ -42,6 +44,7 @@ import org.osmdroid.views.overlay.ItemizedIconOverlay;
 import org.osmdroid.views.overlay.compass.CompassOverlay;
 import org.osmdroid.views.overlay.compass.InternalCompassOrientationProvider;
 import org.y20k.trackbook.core.Track;
+import org.y20k.trackbook.helpers.DropdownAdapter;
 import org.y20k.trackbook.helpers.LogHelper;
 import org.y20k.trackbook.helpers.MapHelper;
 import org.y20k.trackbook.helpers.StorageHelper;
@@ -66,6 +69,9 @@ public class MainActivityTrackFragment extends Fragment implements TrackbookKeys
     private MapView mMapView;
     private IMapController mController;
     private ItemizedIconOverlay mTrackOverlay;
+    private ArrayAdapter<String> mTrackSelectorAdapter;
+    private DropdownAdapter mDropdownAdapter;
+    private Spinner mDropdown;
     private TextView mDistanceView;
     private TextView mStepsView;
     private TextView mWaypointsView;
@@ -87,6 +93,9 @@ public class MainActivityTrackFragment extends Fragment implements TrackbookKeys
         // store activity
         mActivity = getActivity();
 
+        // create drop-down adapter
+        mDropdownAdapter = new DropdownAdapter(mActivity);
+
         // listen for finished save operation
         mTrackSavedReceiver = new BroadcastReceiver() {
             @Override
@@ -140,8 +149,10 @@ public class MainActivityTrackFragment extends Fragment implements TrackbookKeys
             mController.setZoom(16);
         }
 
+        // get views for track selector
+        mDropdown = (Spinner) mRootView.findViewById(R.id.track_selector);
 
-        // get views
+        // get views for statistics sheet
         View statisticsView = mRootView.findViewById(R.id.statistics_view);
         mDistanceView = (TextView) mRootView.findViewById(R.id.statistics_data_distance);
         mStepsView = (TextView) mRootView.findViewById(R.id.statistics_data_steps);
@@ -213,6 +224,11 @@ public class MainActivityTrackFragment extends Fragment implements TrackbookKeys
     @Override
     public void onResume() {
         super.onResume();
+        StorageHelper storageHelper = new StorageHelper(mActivity);
+
+//        mTrackSelectorAdapter = new ArrayAdapter<String>(mActivity, android.R.layout.simple_spinner_dropdown_item, storageHelper.getListOfTracks());
+//        mDropdown.setAdapter(mTrackSelectorAdapter);
+        mDropdown.setAdapter(mDropdownAdapter);
     }
 
 
@@ -315,5 +331,8 @@ public class MainActivityTrackFragment extends Fragment implements TrackbookKeys
             displayTrack();
         }
     }
+    /**
+     * End of inner class
+     */
 
 }

app/src/main/java/org/y20k/trackbook/helpers/DropdownAdapter.java

@@ -0,0 +1,216 @@
+/**
+ * DropdownHelper.java
+ * Implements a dropdown menu
+ * The dropdown menu used to select tracks
+ *
+ * This file is part of
+ * TRACKBOOK - Movement Recorder for Android
+ *
+ * Copyright (c) 2016-17 - Y20K.org
+ * Licensed under the MIT-License
+ * http://opensource.org/licenses/MIT
+ *
+ * Trackbook uses osmdroid - OpenStreetMap-Tools for Android
+ * https://github.com/osmdroid/osmdroid
+ */
+
+
+package org.y20k.trackbook.helpers;
+
+import android.app.Activity;
+import android.content.res.Resources;
+import android.database.DataSetObserver;
+import android.support.annotation.Nullable;
+import android.support.v7.widget.ThemedSpinnerAdapter;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import org.y20k.trackbook.R;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+
+/**
+ * DropdownHelper class
+ */
+public class DropdownAdapter implements ThemedSpinnerAdapter, TrackbookKeys {
+
+    /* Define log tag */
+    private static final String LOG_TAG = DropdownAdapter.class.getSimpleName();
+
+
+    /* Main class variables */
+    private Activity mActivity;
+    private final ThemedSpinnerAdapter.Helper mDropdownAdapterHelper;
+    private List<TrackBundle> mTrackBundleList;
+
+
+    /* Constructor */
+    public DropdownAdapter(Activity activity) {
+        // store activity
+        mActivity = activity;
+
+        // fill list with track bundles
+        initializeTrackBundleList();
+
+        // create an adapter helper
+        mDropdownAdapterHelper = new ThemedSpinnerAdapter.Helper(activity);
+    }
+
+
+    @Override
+    public void setDropDownViewTheme(@Nullable Resources.Theme theme) {
+        mDropdownAdapterHelper.setDropDownViewTheme(theme);
+    }
+
+
+    @Nullable
+    @Override
+    public Resources.Theme getDropDownViewTheme() {
+        return mDropdownAdapterHelper.getDropDownViewTheme();
+    }
+
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        // getView -> collapsed view of dropdown
+        View view = convertView;
+        if (view == null) {
+            LayoutInflater inflater = mDropdownAdapterHelper.getDropDownViewInflater();
+            view = inflater.inflate(R.layout.custom_dropdown_item_collapsed, parent, false);
+        }
+        ((TextView) view).setText(getItem(position).getTrackName());
+        return view;
+    }
+
+
+    @Override
+    public View getDropDownView(int position, View convertView, ViewGroup parent) {
+        // getDropDownView -> expanded view of dropdown
+        View view = convertView;
+        if (view == null) {
+            LayoutInflater inflater = mDropdownAdapterHelper.getDropDownViewInflater();
+//            view = inflater.inflate(R.layout.custom_dropdown_item_expanded, parent, false);
+            view = inflater.inflate(R.layout.support_simple_spinner_dropdown_item, parent, false);
+        }
+        ((TextView) view).setText(getItem(position).getTrackName());
+        return view;
+    }
+
+
+    @Override
+    public void registerDataSetObserver(DataSetObserver dataSetObserver) {
+
+    }
+
+
+    @Override
+    public void unregisterDataSetObserver(DataSetObserver dataSetObserver) {
+
+    }
+
+
+    @Override
+    public int getCount() {
+        return mTrackBundleList.size();
+    }
+
+
+    @Override
+    public TrackBundle getItem(int i) {
+        return mTrackBundleList.get(i);
+    }
+
+
+    @Override
+    public long getItemId(int i) {
+        return 0;
+    }
+
+
+    @Override
+    public boolean hasStableIds() {
+        return false;
+    }
+
+
+    @Override
+    public int getItemViewType(int i) {
+        return 0;
+    }
+
+
+    @Override
+    public int getViewTypeCount() {
+        return 1;
+    }
+
+
+    @Override
+    public boolean isEmpty() {
+        return mTrackBundleList.size() == 0;
+    }
+
+
+    /* Initializes list of track bundles */
+    private void initializeTrackBundleList() {
+
+        // get list of files from storage
+        StorageHelper storageHelper = new StorageHelper(mActivity);
+        File files[] = storageHelper.getListOfTrackbookFiles();
+
+        // fill list with track bundles
+        mTrackBundleList = new ArrayList<>();
+        for (File file : files) {
+            mTrackBundleList.add(new TrackBundle(file));
+        }
+
+    }
+
+
+    /**
+     * Inner class: Container for file and corresponding name of a track
+     */
+    private class TrackBundle {
+        File trackFile;
+        String trackName;
+
+        /* Constructor */
+        TrackBundle(File file) {
+            trackFile = file;
+            trackName = buildTrackName(file);
+        }
+
+        /* Getter for track fike */
+        File getTrackFile() {
+            return trackFile;
+        }
+
+        /* Getter for track name */
+        String getTrackName() {
+            return trackName;
+        }
+
+        /* Builds a readable track name from the track's file name */
+        String buildTrackName(File file) {
+            // todo get date back from track name
+            Date date = null;
+
+            // todo get name according to current locale
+            String readableTrackName = null;
+
+            return file.getName();
+            // return readableTrackName;
+        }
+
+    }
+    /**
+     * End of inner class
+     */
+
+}

app/src/main/java/org/y20k/trackbook/helpers/LogHelper.java

@@ -26,7 +26,7 @@ import android.util.Log;
  */
 public final class LogHelper {
 
-    private final static boolean mTesting = false;
+    private final static boolean mTesting = true;
 
     public static void d(final String tag, String message) {
         // include logging only in debug versions

app/src/main/java/org/y20k/trackbook/helpers/StorageHelper.java

@@ -36,9 +36,11 @@ import java.io.FileWriter;
 import java.io.IOException;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
 import java.util.Date;
+import java.util.List;
 import java.util.Locale;
 
 
@@ -188,6 +190,32 @@ public class StorageHelper implements TrackbookKeys {
     }
 
 
+    /* Gets a list of .trackbook files - excluding the temp file */
+    public File[] getListOfTrackbookFiles() {
+        // TODO HANDLE CASE: EMPTY FILE LIST
+
+        // get files and sort them
+        return sortFiles(mFolder.listFiles());
+    }
+
+
+    /* Gets a list of tracks based on their file names */
+    public List<String> getListOfTracks() {
+        List<String> listOfTracks = new ArrayList<String>();
+
+        // get files and sort them
+        File[] files = mFolder.listFiles();
+        files = sortFiles(files);
+
+        for (File file : files) {
+            listOfTracks.add(file.getName());
+        }
+
+        // TODO HANDLE CASE: EMPTY FILE LIST
+        return listOfTracks;
+    }
+
+
     /* Gets most current track from directory */
     private File getMostCurrentTrack() {
 

app/src/main/res/drawable/ic_delete_forever_white_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:pathData="M6,19c0,1.1 0.9,2 2,2h8c1.1,0 2,-0.9 2,-2L18,7L6,7v12zM8.46,11.88l1.41,-1.41L12,12.59l2.12,-2.12 1.41,1.41L13.41,14l2.12,2.12 -1.41,1.41L12,15.41l-2.12,2.12 -1.41,-1.41L10.59,14l-2.13,-2.12zM15.5,4l-1,-1h-5l-1,1L5,4v2h14L19,4z"
+        android:fillColor="@color/trackbook_white" />
+</vector>

app/src/main/res/layout/custom_dropdown_item_collapsed.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView android:id="@android:id/text1"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingStart="@dimen/activity_horizontal_margin"
+    android:paddingEnd="@dimen/activity_horizontal_margin"
+    android:textColor="@color/trackbook_white"
+    android:ellipsize="marquee"
+    android:maxLines="1" />

app/src/main/res/layout/custom_dropdown_item_expanded.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView android:id="@android:id/text1"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingStart="@dimen/activity_horizontal_margin"
+    android:paddingEnd="@dimen/activity_horizontal_margin"
+    android:textColor="@color/trackbook_white"
+    android:background="@color/trackbook_blue"
+    android:ellipsize="marquee"
+    android:maxLines="1" />

app/src/main/res/layout/fragment_main_track.xml

@@ -8,12 +8,49 @@
     android:layout_height="match_parent"
     tools:context=".MainActivityMapFragment">
 
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
         <!-- MAP VIEW -->
         <org.osmdroid.views.MapView
+            android:id="@+id/track_map"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:contentDescription="@string/descr_map_last_track" />
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:paddingLeft="@dimen/activity_horizontal_margin"
+            android:paddingRight="@dimen/activity_horizontal_margin"
+            android:orientation="horizontal"
+            android:background="@color/trackbook_blue_85percent">
+            <Spinner
+                android:id="@+id/track_selector"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:gravity="start|center"
+                android:theme="@style/TrackbookAppTheme.PopupOverlay"
+                android:contentDescription="@string/descr_track_selector" />
+            <ImageButton
+                android:id="@+id/delete_button"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="end|center"
+                android:background="@drawable/ic_delete_forever_white_24dp"
+                android:contentDescription="@string/descr_delete_button" />
+        </LinearLayout>
+
+    </RelativeLayout>
+
+    <!-- MAP VIEW --> <!-- TODO remove -->
+<!--    <org.osmdroid.views.MapView
         android:id="@+id/track_map"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
-        android:contentDescription="@string/descr_map_last_track" />
+        android:contentDescription="@string/descr_map_last_track" /> -->
 
     <!-- BOTTOM SHEET -->
     <android.support.v4.widget.NestedScrollView

app/src/main/res/values-de/strings.xml

@@ -112,5 +112,7 @@
     <string name="descr_statistics_sheet_p_duration_value">Wert: Dauer</string>
     <string name="descr_statistics_sheet_p_recording_start_value">Wert: Start der Aufzeichnung</string>
     <string name="descr_statistics_sheet_p_recording_end_value">Wert: Ende der Aufzeichnung</string>
+    <string name="descr_track_selector">Auswahl-Menü für weitere Aufzeichnungen</string>
+    <string name="descr_delete_button">Button Track Löschen</string>
 
 </resources>

app/src/main/res/values-ja/strings.xml

@@ -1,5 +1,7 @@
 <?xml version='1.0' encoding='UTF-8'?>
-<resources><string name="app_name">Trackbook</string> <string name="title_activity_infosheet">情報シート</string>
+<resources>
+    <string name="app_name">Trackbook</string>
+    <string name="title_activity_infosheet">情報シート</string>
 
     <string name="menu_my_location">私の場所</string>
     <string name="menu_about">アプリについて</string>
@@ -36,6 +38,7 @@
     <string name="toast_message_track_clear">現在のトラック データを削除しました。</string>
 
     <string name="marker_description_source">ソース</string>
+    <string name="marker_description_time">時間</string>
     <string name="marker_description_accuracy">精度</string>
 
     <string name="statistics_sheet_h1_statistics">統計情報</string>
@@ -97,6 +100,7 @@
     <string name="descr_statistics_sheet_p_duration_value">値: 期間</string>
     <string name="descr_statistics_sheet_p_recording_start_value">値: 記録の開始</string>
     <string name="descr_statistics_sheet_p_recording_end_value">値: 記録の終了</string>
+    <string name="descr_track_selector">Dropdown menu for further tracks</string>
+    <string name="descr_delete_button">Track delete button</string>
 
-<string name="marker_description_time">時間</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -113,5 +113,7 @@
     <string name="descr_statistics_sheet_p_duration_value">Value: duration</string>
     <string name="descr_statistics_sheet_p_recording_start_value">Value: start of recording</string>
     <string name="descr_statistics_sheet_p_recording_end_value">Value: end of recording</string>
+    <string name="descr_track_selector">Dropdown menu for further tracks</string>
+    <string name="descr_delete_button">Track delete button</string>
 
 </resources>

app/src/main/res/values/styles.xml

@@ -14,6 +14,9 @@
     </style>
 
     <style name="TrackbookAppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
-    <style name="TrackbookAppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
+
+    <style name="TrackbookAppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light">
+        <!-- <item name="colorBackground">@color/trackbook_red</item> -->
+    </style>
 
 </resources>