Interval Stats: use a tab for recorded tracks as well.

src/main/java/de/dennisguse/opentracks/TrackRecordedActivity.java

@@ -24,6 +24,7 @@ import android.view.MenuItem;
 
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentPagerAdapter;
 import androidx.viewpager.widget.ViewPager;
 
@@ -36,6 +37,7 @@ import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
 import de.dennisguse.opentracks.fragments.ChartFragment;
 import de.dennisguse.opentracks.fragments.ChooseActivityTypeDialogFragment;
 import de.dennisguse.opentracks.fragments.ConfirmDeleteDialogFragment;
+import de.dennisguse.opentracks.fragments.IntervalsRecordedFragment;
 import de.dennisguse.opentracks.fragments.StatisticsRecordedFragment;
 import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
 import de.dennisguse.opentracks.settings.SettingsActivity;
@@ -76,42 +78,8 @@ public class TrackRecordedActivity extends AbstractListActivity implements Choos
 
         trackDataHub = new TrackDataHub(this);
 
-        FragmentPagerAdapter adapter = new FragmentPagerAdapter(getSupportFragmentManager(), 1) {
-            @Override
-            public int getCount() {
-                return 3;
-            }
-
-            @NonNull
-            @Override
-            public Fragment getItem(int position) {
-                switch (position) {
-                    case 0:
-                        return StatisticsRecordedFragment.newInstance(track.getId());
-                    case 1:
-                        return ChartFragment.newInstance(false);
-                    case 2:
-                        return ChartFragment.newInstance(true);
-                    default:
-                        throw new RuntimeException("There isn't Fragment associated with the position: " + position);
-                }
-            }
-
-            @Override
-            public CharSequence getPageTitle(int position) {
-                switch (position) {
-                    case 0:
-                        return getString(R.string.track_detail_stats_tab);
-                    case 1:
-                        return getString(R.string.settings_chart_by_time);
-                    case 2:
-                        return getString(R.string.settings_chart_by_distance);
-                }
-                return "Unknown Tab";
-            }
-        };
         pager = findViewById(R.id.track_detail_activity_view_pager);
-        pager.setAdapter(adapter);
+        pager.setAdapter(new CustomFragmentPagerAdapter(getSupportFragmentManager(), FragmentPagerAdapter.BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT));
         TabLayout tabs = findViewById(R.id.track_detail_activity_tablayout);
         tabs.setupWithViewPager(pager);
         if (savedInstanceState != null) {
@@ -266,4 +234,49 @@ public class TrackRecordedActivity extends AbstractListActivity implements Choos
         String category = getString(TrackIconUtils.getIconActivityType(iconValue));
         TrackUtils.updateTrack(this, track, null, category, null, contentProviderUtils);
     }
+
+    private class CustomFragmentPagerAdapter extends FragmentPagerAdapter {
+
+        public CustomFragmentPagerAdapter(@NonNull FragmentManager fm, int behavior) {
+            super(fm, behavior);
+        }
+
+        @Override
+        public int getCount() {
+            return 4;
+        }
+
+        @NonNull
+        @Override
+        public Fragment getItem(int position) {
+            switch (position) {
+                case 0:
+                    return StatisticsRecordedFragment.newInstance(track.getId());
+                case 1:
+                    return IntervalsRecordedFragment.newInstance(track.getId());
+                case 2:
+                    return ChartFragment.newInstance(false);
+                case 3:
+                    return ChartFragment.newInstance(true);
+                default:
+                    throw new RuntimeException("There isn't Fragment associated with the position: " + position);
+            }
+        }
+
+        @Override
+        public CharSequence getPageTitle(int position) {
+            switch (position) {
+                case 0:
+                    return getString(R.string.track_detail_stats_tab);
+                case 1:
+                    return getString(R.string.track_detail_intervals_tab);
+                case 2:
+                    return getString(R.string.settings_chart_by_time);
+                case 3:
+                    return getString(R.string.settings_chart_by_distance);
+                default:
+                    throw new RuntimeException("There isn't Fragment associated with the position: " + position);
+            }
+        }
+    }
 }

src/main/java/de/dennisguse/opentracks/TrackRecordingActivity.java

@@ -181,7 +181,7 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
         trackDataHub = new TrackDataHub(this);
 
         pager = findViewById(R.id.track_detail_activity_view_pager);
-        pager.setAdapter(new CustomFragmentPagerAdapter(getSupportFragmentManager(), 1));
+        pager.setAdapter(new CustomFragmentPagerAdapter(getSupportFragmentManager(), FragmentPagerAdapter.BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT));
         TabLayout tabs = findViewById(R.id.track_detail_activity_tablayout);
         tabs.setupWithViewPager(pager);
         if (savedInstanceState != null) {
@@ -383,7 +383,7 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
                 case 0:
                     return StatisticsRecordingFragment.newInstance();
                 case 1:
-                    return IntervalsRecordingFragment.newInstance();
+                    return IntervalsRecordingFragment.newInstance(trackId);
                 case 2:
                     return ChartFragment.newInstance(false);
                 case 3:

src/main/java/de/dennisguse/opentracks/fragments/IntervalsRecordedFragment.java

@@ -0,0 +1,103 @@
+package de.dennisguse.opentracks.fragments;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.LinearLayout;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.ViewModelProvider;
+
+import de.dennisguse.opentracks.R;
+import de.dennisguse.opentracks.content.data.Track;
+import de.dennisguse.opentracks.viewmodels.IntervalStatistics;
+import de.dennisguse.opentracks.viewmodels.IntervalStatisticsModel;
+import de.dennisguse.opentracks.views.IntervalListView;
+
+/**
+ * A fragment to display the intervals from recorded track.
+ */
+public class IntervalsRecordedFragment extends Fragment implements IntervalListView.IntervalListListener {
+
+    private static final String TAG = IntervalsRecordedFragment.class.getSimpleName();
+
+    private static final String TRACK_ID_KEY = "trackId";
+
+    private IntervalStatisticsModel viewModel;
+    private IntervalListView.IntervalReverseListView intervalListView;
+
+    private Track.Id trackId;
+
+    public static Fragment newInstance(Track.Id trackId) {
+        Bundle bundle = new Bundle();
+        bundle.putParcelable(TRACK_ID_KEY, trackId);
+
+        Fragment fragment = new IntervalsRecordedFragment();
+        fragment.setArguments(bundle);
+        return fragment;
+    }
+
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.intervals_recording, container, false);
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        trackId = getArguments().getParcelable(TRACK_ID_KEY);
+
+        intervalListView = new IntervalListView.IntervalReverseListView(getActivity(), this);
+        intervalListView.setId(View.generateViewId());
+        LinearLayout linearLayout = view.findViewById(R.id.root_view);
+        linearLayout.removeAllViews();
+        linearLayout.addView(intervalListView);
+
+        viewModel = new ViewModelProvider(this).get(IntervalStatisticsModel.class);
+
+        updateIntervals(null);
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+
+        intervalListView.destroy();
+        intervalListView = null;
+        viewModel = null;
+    }
+
+    /**
+     * Update intervals through {@link IntervalStatisticsModel} view model.
+     *
+     * @param interval intervals will split in this interval if not null. If it's null then view model will use the default one.
+     */
+    private void updateIntervals(@Nullable IntervalStatisticsModel.IntervalOption interval) {
+        if (viewModel == null || intervalListView == null) {
+            return;
+        }
+
+        viewModel.invalidate();
+        LiveData<IntervalStatistics> liveData;
+        if (interval == null) {
+            liveData = viewModel.getIntervalStats(trackId);
+        } else {
+            liveData = viewModel.getIntervalStats(trackId, interval);
+        }
+        liveData.observe(getActivity(), intervalStatistics -> {
+            if (intervalStatistics != null) {
+                intervalListView.display(intervalStatistics.getIntervalList());
+            }
+        });
+    }
+
+    @Override
+    public void intervalChanged(IntervalStatisticsModel.IntervalOption interval) {
+        updateIntervals(interval);
+    }
+}

src/main/java/de/dennisguse/opentracks/fragments/IntervalsRecordingFragment.java

@@ -15,7 +15,6 @@ import androidx.lifecycle.ViewModelProvider;
 
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.content.data.Track;
-import de.dennisguse.opentracks.util.PreferencesUtils;
 import de.dennisguse.opentracks.util.UnitConversions;
 import de.dennisguse.opentracks.viewmodels.IntervalStatistics;
 import de.dennisguse.opentracks.viewmodels.IntervalStatisticsModel;
@@ -28,14 +27,23 @@ public class IntervalsRecordingFragment extends Fragment implements IntervalList
 
     private static final String TAG = IntervalsRecordingFragment.class.getSimpleName();
 
+    private static final String TRACK_ID_KEY = "trackId";
+
     // Refreshing intervals stats it's not so demanding so 5 seconds is enough to balance performance and user experience.
     private static final long UI_UPDATE_INTERVAL = 5 * UnitConversions.ONE_SECOND_MS;
 
     private IntervalStatisticsModel viewModel;
     private IntervalListView.IntervalReverseListView intervalListView;
 
-    public static Fragment newInstance() {
-        return new IntervalsRecordingFragment();
+    private Track.Id trackId;
+
+    public static Fragment newInstance(Track.Id trackId) {
+        Bundle bundle = new Bundle();
+        bundle.putParcelable(TRACK_ID_KEY, trackId);
+
+        Fragment fragment = new IntervalsRecordingFragment();
+        fragment.setArguments(bundle);
+        return fragment;
     }
 
     private final Runnable intervalRunner = new Runnable() {
@@ -59,11 +67,12 @@ public class IntervalsRecordingFragment extends Fragment implements IntervalList
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
+        trackId = getArguments().getParcelable(TRACK_ID_KEY);
+
         intervalHandler = new Handler();
 
         intervalListView = new IntervalListView.IntervalReverseListView(getActivity(), this);
         intervalListView.setId(View.generateViewId());
-        intervalListView.findViewById(R.id.interval_title_label).setVisibility(View.GONE);
         LinearLayout linearLayout = view.findViewById(R.id.root_view);
         linearLayout.removeAllViews();
         linearLayout.addView(intervalListView);
@@ -102,7 +111,6 @@ public class IntervalsRecordingFragment extends Fragment implements IntervalList
             return;
         }
 
-        Track.Id trackId = PreferencesUtils.getRecordingTrackId(getContext());
         viewModel.invalidate();
         LiveData<IntervalStatistics> liveData;
         if (interval == null) {

src/main/java/de/dennisguse/opentracks/fragments/StatisticsRecordedFragment.java

@@ -24,14 +24,12 @@ import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.LinearLayout;
 import android.widget.Spinner;
 import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
-import androidx.lifecycle.ViewModelProvider;
 
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.TrackRecordedActivity;
@@ -41,8 +39,6 @@ import de.dennisguse.opentracks.stats.TrackStatistics;
 import de.dennisguse.opentracks.util.PreferencesUtils;
 import de.dennisguse.opentracks.util.StringUtils;
 import de.dennisguse.opentracks.util.TrackIconUtils;
-import de.dennisguse.opentracks.viewmodels.IntervalStatisticsModel;
-import de.dennisguse.opentracks.views.IntervalListView;
 
 /**
  * A fragment to display track statistics to the user.
@@ -50,7 +46,7 @@ import de.dennisguse.opentracks.views.IntervalListView;
  * @author Sandor Dornbush
  * @author Rodrigo Damazio
  */
-public class StatisticsRecordedFragment extends Fragment implements IntervalListView.IntervalListListener {
+public class StatisticsRecordedFragment extends Fragment {
 
     private static final String TRACK_ID_KEY = "trackId";
 
@@ -58,14 +54,8 @@ public class StatisticsRecordedFragment extends Fragment implements IntervalList
     private String category = "";
     private Track track;
 
-    private IntervalStatisticsModel viewModel;
-    private IntervalListView intervalListView;
-
     private final SharedPreferences.OnSharedPreferenceChangeListener sharedPreferenceChangeListener = (preferences, key) -> {
         if (PreferencesUtils.isKey(getContext(), R.string.stats_units_key, key) || PreferencesUtils.isKey(getContext(), R.string.stats_rate_key, key)) {
-            if (viewModel != null) {
-                viewModel.invalidate();
-            }
             if (isResumed()) {
                 getActivity().runOnUiThread(() -> {
                     if (isResumed()) {
@@ -81,8 +71,6 @@ public class StatisticsRecordedFragment extends Fragment implements IntervalList
         return inflater.inflate(R.layout.statistics_recorded, container, false);
     }
 
-    /* Views */
-    private ViewGroup rootView;
     private TextView totalTimeValueView;
     private TextView distanceValue;
     private TextView distanceUnit;
@@ -121,7 +109,7 @@ public class StatisticsRecordedFragment extends Fragment implements IntervalList
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
-        rootView = view.findViewById(R.id.root_view);
+        ViewGroup rootView = view.findViewById(R.id.root_view);
 
         totalTimeValueView = view.findViewById(R.id.stats_total_time_value);
 
@@ -144,14 +132,6 @@ public class StatisticsRecordedFragment extends Fragment implements IntervalList
         speedMovingLabel = view.findViewById(R.id.stats_moving_speed_label);
         speedMovingValue = view.findViewById(R.id.stats_moving_speed_value);
         speedMovingUnit = view.findViewById(R.id.stats_moving_speed_unit);
-
-        intervalListView = new IntervalListView(getActivity(), this);
-        intervalListView.setId(View.generateViewId());
-        LinearLayout linearLayoutExtra = rootView.findViewById(R.id.linear_layout_extra);
-        linearLayoutExtra.removeAllViews();
-        linearLayoutExtra.addView(intervalListView);
-
-        viewModel = new ViewModelProvider(this).get(IntervalStatisticsModel.class);
     }
 
     @Override
@@ -174,14 +154,6 @@ public class StatisticsRecordedFragment extends Fragment implements IntervalList
         });
     }
 
-    private void addIntervals() {
-        viewModel.getIntervalStats(track.getId()).observe(getActivity(), intervalStatistics -> {
-            if (intervalStatistics != null) {
-                intervalListView.display(intervalStatistics.getIntervalList());
-            }
-        });
-    }
-
     @Override
     public void onResume() {
         super.onResume();
@@ -217,10 +189,6 @@ public class StatisticsRecordedFragment extends Fragment implements IntervalList
         speedMovingLabel = null;
         speedMovingValue = null;
         speedMovingUnit = null;
-
-        intervalListView.destroy();
-        intervalListView = null;
-        viewModel = null;
     }
 
     public void loadStatistics() {
@@ -298,18 +266,5 @@ public class StatisticsRecordedFragment extends Fragment implements IntervalList
             speedMovingValue.setText(parts.first);
             speedMovingUnit.setText(parts.second);
         }
-
-        addIntervals();
-    }
-
-    @Override
-    public void intervalChanged(IntervalStatisticsModel.IntervalOption interval) {
-        if (viewModel != null && intervalListView != null) {
-            viewModel.getIntervalStats(track.getId(), interval).observe(getActivity(), intervalStatistics -> {
-                if (intervalStatistics != null) {
-                    intervalListView.display(intervalStatistics.getIntervalList());
-                }
-            });
-        }
     }
 }

src/main/java/de/dennisguse/opentracks/fragments/StatisticsRecordingFragment.java

@@ -48,6 +48,8 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
 
     private static final String TAG = StatisticsRecordingFragment.class.getSimpleName();
 
+    private static final String TRACK_ID_KEY = "trackId";
+
     private static final long UI_UPDATE_INTERVAL = UnitConversions.ONE_SECOND_MS;
 
     private TrackDataHub trackDataHub;

src/main/res/layout/interval_list_view.xml

@@ -5,13 +5,6 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:orientation="vertical">
 
-    <TextView
-        android:id="@+id/interval_title_label"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        style="@style/StatsSmallLabel"
-        android:text="@string/stats_intervals" />
-
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"