forked from upstream-mirrors/OpenTracks
Dennis Guse
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package de.dennisguse.opentracks.ui.intervals;
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import android.content.SharedPreferences;
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import android.os.Bundle;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.AdapterView;
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import android.widget.ArrayAdapter;
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import android.widget.TextView;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.fragment.app.Fragment;
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import androidx.lifecycle.LiveData;
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import androidx.lifecycle.ViewModelProvider;
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import androidx.recyclerview.widget.LinearLayoutManager;
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import java.util.List;
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import de.dennisguse.opentracks.R;
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import de.dennisguse.opentracks.content.data.Track;
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import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
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import de.dennisguse.opentracks.databinding.IntervalListViewBinding;
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import de.dennisguse.opentracks.settings.PreferencesUtils;
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/**
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* A fragment to display the intervals from recorded track.
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*/
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public class IntervalsFragment extends Fragment {
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private static final String TAG = IntervalsFragment.class.getSimpleName();
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private static final String FROM_TOP_TO_BOTTOM_KEY = "fromTopToBottom";
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private static final String TRACK_ID_KEY = "trackId";
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private IntervalStatisticsModel viewModel;
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protected IntervalStatisticsAdapter.StackMode stackModeListView;
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private IntervalStatisticsModel.IntervalOption selectedInterval;
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private Track.Id trackId;
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private boolean metricUnits;
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private IntervalStatisticsAdapter adapter;
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private ArrayAdapter<IntervalStatisticsModel.IntervalOption> spinnerAdapter;
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private boolean isReportSpeed;
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private IntervalListViewBinding viewBinding;
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protected final SharedPreferences.OnSharedPreferenceChangeListener sharedPreferenceChangeListener = (sharedPreferences, key) -> {
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if (PreferencesUtils.isKey(R.string.stats_units_key, key) || PreferencesUtils.isKey(R.string.stats_rate_key, key)) {
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updateIntervals(PreferencesUtils.isMetricUnits(), selectedInterval);
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if (spinnerAdapter != null) {
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spinnerAdapter.notifyDataSetChanged();
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}
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}
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};
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/**
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* Creates an instance of this class.
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*
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* @param fromTopToBottom If true then the intervals are shown from top to bottom (the first interval on top). Otherwise the intervals are shown from bottom to top.
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* @return IntervalsFragment instance.
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*/
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public static Fragment newInstance(Track.Id trackId, boolean fromTopToBottom) {
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Bundle bundle = new Bundle();
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bundle.putBoolean(FROM_TOP_TO_BOTTOM_KEY, fromTopToBottom);
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bundle.putParcelable(TRACK_ID_KEY, trackId);
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IntervalsFragment intervalsFragment = new IntervalsFragment();
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intervalsFragment.setArguments(bundle);
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return intervalsFragment;
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}
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@Override
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public void onCreate(@Nullable Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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stackModeListView = getArguments().getBoolean(FROM_TOP_TO_BOTTOM_KEY, true) ? IntervalStatisticsAdapter.StackMode.STACK_FROM_TOP : IntervalStatisticsAdapter.StackMode.STACK_FROM_BOTTOM;
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trackId = getArguments().getParcelable(TRACK_ID_KEY);
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}
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@Override
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public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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viewBinding = IntervalListViewBinding.inflate(inflater, container, false);
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return viewBinding.getRoot();
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}
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@Override
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public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
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super.onViewCreated(view, savedInstanceState);
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adapter = new IntervalStatisticsAdapter(getContext(), stackModeListView, metricUnits, isReportSpeed);
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viewBinding.intervalList.setLayoutManager(new LinearLayoutManager(getContext()));
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// TODO handle empty view: before we did viewBinding.intervalList.setEmptyView(viewBinding.intervalListEmptyView);
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viewBinding.intervalList.setAdapter(adapter);
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spinnerAdapter = new ArrayAdapter<>(getContext(), android.R.layout.simple_spinner_dropdown_item, IntervalStatisticsModel.IntervalOption.values()) {
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@NonNull
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@Override
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public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
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TextView v = (TextView) super.getView(position, convertView, parent);
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if (metricUnits) {
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v.setText(getContext().getString(R.string.value_integer_kilometer, Integer.parseInt(v.getText().toString())));
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} else {
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v.setText(getContext().getString(R.string.value_integer_mile, Integer.parseInt(v.getText().toString())));
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}
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return v;
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}
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@Override
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public View getDropDownView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
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return getView(position, convertView, parent);
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}
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};
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viewBinding.spinnerIntervals.setAdapter(spinnerAdapter);
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viewBinding.spinnerIntervals.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
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@Override
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public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
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updateIntervals(metricUnits, IntervalStatisticsModel.IntervalOption.values()[i]);
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}
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@Override
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public void onNothingSelected(AdapterView<?> adapterView) {
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}
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});
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}
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@Override
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public void onResume() {
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super.onResume();
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PreferencesUtils.registerOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
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ContentProviderUtils contentProviderUtils = new ContentProviderUtils(getContext());
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Track track = contentProviderUtils.getTrack(trackId);
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if (track != null) {
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isReportSpeed = PreferencesUtils.isReportSpeed(track.getCategory());
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}
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viewModel = new ViewModelProvider(getActivity()).get(IntervalStatisticsModel.class);
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loadIntervals();
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}
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@Override
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public void onPause() {
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super.onPause();
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PreferencesUtils.unregisterOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
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if (viewModel != null) {
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viewModel.onPause();
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}
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}
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@Override
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public void onDestroyView() {
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super.onDestroyView();
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viewBinding = null;
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}
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@Override
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public void onDestroy() {
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super.onDestroy();
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adapter = null;
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viewModel = null;
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}
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/**
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* Update intervals through {@link IntervalStatisticsModel} view model.
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*/
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protected synchronized void loadIntervals() {
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if (viewModel == null) {
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return;
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}
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viewBinding.intervalRate.setText(isReportSpeed ? getString(R.string.stats_speed) : getString(R.string.stats_pace));
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LiveData<List<IntervalStatistics.Interval>> liveData = viewModel.getIntervalStats(trackId, metricUnits, selectedInterval);
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liveData.observe(getActivity(), intervalList -> adapter.swapData(intervalList, metricUnits, isReportSpeed));
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}
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private synchronized void updateIntervals(boolean metricUnits, IntervalStatisticsModel.IntervalOption selectedInterval) {
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boolean update = metricUnits != this.metricUnits
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|| selectedInterval == null
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|| !selectedInterval.sameMultiplier(this.selectedInterval);
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this.metricUnits = metricUnits;
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this.selectedInterval = selectedInterval;
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if (update && viewModel != null) {
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viewModel.update(trackId, this.metricUnits, this.selectedInterval);
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}
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}
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}
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