remove/re-add for proper win support...

src/main/java/com/owncloud/android/ui/fragment/ContactsBackup/ContactListFragment.java

@@ -1,537 +0,0 @@
-/**
- * Nextcloud Android client application
- *
- * @author Tobias Kaminsky
- * Copyright (C) 2017 Tobias Kaminsky
- * Copyright (C) 2017 Nextcloud GmbH.
- * <p>
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * at your option) any later version.
- * <p>
- * This program 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 Affero General Public License for more details.
- * <p>
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.owncloud.android.ui.fragment.contactsbackup;
-
-import android.Manifest;
-import android.accounts.Account;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.content.Intent;
-import android.database.Cursor;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.os.Bundle;
-import android.os.Handler;
-import android.provider.ContactsContract;
-import android.support.annotation.NonNull;
-import android.support.design.widget.Snackbar;
-import android.support.v4.graphics.drawable.RoundedBitmapDrawable;
-import android.support.v7.app.AlertDialog;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
-import android.view.LayoutInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ArrayAdapter;
-import android.widget.Button;
-import android.widget.CheckedTextView;
-import android.widget.ImageView;
-
-import com.evernote.android.job.JobRequest;
-import com.evernote.android.job.util.support.PersistableBundleCompat;
-import com.owncloud.android.R;
-import com.owncloud.android.datamodel.OCFile;
-import com.owncloud.android.files.services.FileDownloader;
-import com.owncloud.android.lib.common.utils.Log_OC;
-import com.owncloud.android.services.ContactsImportJob;
-import com.owncloud.android.ui.TextDrawable;
-import com.owncloud.android.ui.activity.ContactsPreferenceActivity;
-import com.owncloud.android.ui.events.VCardToggleEvent;
-import com.owncloud.android.ui.fragment.FileFragment;
-import com.owncloud.android.utils.BitmapUtils;
-import com.owncloud.android.utils.PermissionUtil;
-
-import org.greenrobot.eventbus.EventBus;
-import org.greenrobot.eventbus.Subscribe;
-import org.greenrobot.eventbus.ThreadMode;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-import butterknife.BindView;
-import butterknife.ButterKnife;
-import ezvcard.Ezvcard;
-import ezvcard.VCard;
-import ezvcard.property.StructuredName;
-
-/**
- * This fragment shows all contacts from a file and allows to import them.
- */
-
-public class ContactListFragment extends FileFragment {
-    public static final String TAG = ContactListFragment.class.getSimpleName();
-
-    public static final String FILE_NAME = "FILE_NAME";
-    public static final String ACCOUNT = "ACCOUNT";
-
-    public static final String CHECKED_ITEMS_ARRAY_KEY = "CHECKED_ITEMS";
-
-
-    @BindView(R.id.contactlist_recyclerview)
-    public RecyclerView recyclerView;
-
-    @BindView(R.id.contactlist_restore_selected)
-    public Button restoreContacts;
-
-    private ContactListAdapter contactListAdapter;
-
-    public static ContactListFragment newInstance(OCFile file, Account account) {
-        ContactListFragment frag = new ContactListFragment();
-        Bundle arguments = new Bundle();
-        arguments.putParcelable(FILE_NAME, file);
-        arguments.putParcelable(ACCOUNT, account);
-        frag.setArguments(arguments);
-
-        return frag;
-    }
-
-    @Override
-    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-
-        View view = inflater.inflate(R.layout.contactlist_fragment, null);
-        ButterKnife.bind(this, view);
-
-        setHasOptionsMenu(true);
-
-        ContactsPreferenceActivity contactsPreferenceActivity = (ContactsPreferenceActivity) getActivity();
-        contactsPreferenceActivity.getSupportActionBar().setTitle(R.string.actionbar_contacts_restore);
-        contactsPreferenceActivity.getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-        contactsPreferenceActivity.setDrawerIndicatorEnabled(false);
-
-        ArrayList<VCard> vCards = new ArrayList<>();
-
-        try {
-            OCFile ocFile = getArguments().getParcelable(FILE_NAME);
-            setFile(ocFile);
-            Account account = getArguments().getParcelable(ACCOUNT);
-
-            if (!ocFile.isDown()) {
-                Intent i = new Intent(getContext(), FileDownloader.class);
-                i.putExtra(FileDownloader.EXTRA_ACCOUNT, account);
-                i.putExtra(FileDownloader.EXTRA_FILE, ocFile);
-                getContext().startService(i);
-            } else {
-                File file = new File(ocFile.getStoragePath());
-                vCards.addAll(Ezvcard.parse(file).all());
-            }
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-
-        restoreContacts.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-
-                if (checkAndAskForContactsWritePermission()) {
-                    getAccountForImport();
-                }
-            }
-        });
-
-        recyclerView = (RecyclerView) view.findViewById(R.id.contactlist_recyclerview);
-
-        if (savedInstanceState == null) {
-            contactListAdapter = new ContactListAdapter(getContext(), vCards);
-        } else {
-            Set<Integer> checkedItems = new HashSet<>();
-            int[] itemsArray = savedInstanceState.getIntArray(CHECKED_ITEMS_ARRAY_KEY);
-            for (int i = 0; i < itemsArray.length; i++) {
-                checkedItems.add(itemsArray[i]);
-            }
-            if (checkedItems.size() > 0) {
-                onMessageEvent(new VCardToggleEvent(true));
-            }
-            contactListAdapter = new ContactListAdapter(getContext(), vCards, checkedItems);
-        }
-        recyclerView.setAdapter(contactListAdapter);
-        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
-
-        return view;
-    }
-
-    @Override
-    public void onSaveInstanceState(Bundle outState) {
-        super.onSaveInstanceState(outState);
-        outState.putIntArray(CHECKED_ITEMS_ARRAY_KEY, contactListAdapter.getCheckedIntArray());
-    }
-
-
-    @Subscribe(threadMode = ThreadMode.MAIN)
-    public void onMessageEvent(VCardToggleEvent event) {
-        if (event.showRestoreButton) {
-            restoreContacts.setVisibility(View.VISIBLE);
-            restoreContacts.setBackgroundColor(getResources().getColor(R.color.primary_button_background_color));
-        } else {
-            restoreContacts.setVisibility(View.GONE);
-            restoreContacts.setBackgroundColor(getResources().getColor(R.color.standard_grey));
-        }
-
-    }
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        ContactsPreferenceActivity contactsPreferenceActivity = (ContactsPreferenceActivity) getActivity();
-        contactsPreferenceActivity.setDrawerIndicatorEnabled(true);
-    }
-
-    public void onResume() {
-        super.onResume();
-        ContactsPreferenceActivity contactsPreferenceActivity = (ContactsPreferenceActivity) getActivity();
-        contactsPreferenceActivity.setDrawerIndicatorEnabled(false);
-    }
-
-
-    @Override
-    public void onStart() {
-        super.onStart();
-        EventBus.getDefault().register(this);
-    }
-
-    @Override
-    public void onStop() {
-        EventBus.getDefault().unregister(this);
-        super.onStop();
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        boolean retval;
-        ContactsPreferenceActivity contactsPreferenceActivity = (ContactsPreferenceActivity) getActivity();
-
-        switch (item.getItemId()) {
-            case android.R.id.home:
-                contactsPreferenceActivity.onBackPressed();
-                retval = true;
-                break;
-            default:
-                retval = super.onOptionsItemSelected(item);
-                break;
-        }
-        return retval;
-    }
-
-
-    static class ContactItemViewHolder extends RecyclerView.ViewHolder {
-        private ImageView badge;
-        private CheckedTextView name;
-
-        ContactItemViewHolder(View itemView) {
-            super(itemView);
-
-            badge = (ImageView) itemView.findViewById(R.id.contactlist_item_icon);
-            name = (CheckedTextView) itemView.findViewById(R.id.contactlist_item_name);
-
-            itemView.setTag(this);
-        }
-
-        public void setVCardListener(View.OnClickListener onClickListener) {
-            itemView.setOnClickListener(onClickListener);
-        }
-
-        public ImageView getBadge() {
-            return badge;
-        }
-
-        public void setBadge(ImageView badge) {
-            this.badge = badge;
-        }
-
-        public CheckedTextView getName() {
-            return name;
-        }
-
-        public void setName(CheckedTextView name) {
-            this.name = name;
-        }
-    }
-
-    private void importContacts(ContactAccount account) {
-
-
-        PersistableBundleCompat bundle = new PersistableBundleCompat();
-        bundle.putString(ContactsImportJob.ACCOUNT_NAME, account.name);
-        bundle.putString(ContactsImportJob.ACCOUNT_TYPE, account.type);
-        bundle.putString(ContactsImportJob.VCARD_FILE_PATH, getFile().getStoragePath());
-        bundle.putIntArray(ContactsImportJob.CHECKED_ITEMS_ARRAY, contactListAdapter.getCheckedIntArray());
-
-        new JobRequest.Builder(ContactsImportJob.TAG)
-                .setExtras(bundle)
-                .setExecutionWindow(3_000L, 10_000L)
-                .setRequiresCharging(false)
-                .setPersisted(false)
-                .setUpdateCurrent(false)
-                .build()
-                .schedule();
-
-
-        Snackbar.make(recyclerView, R.string.contacts_preferences_import_scheduled, Snackbar.LENGTH_LONG).show();
-
-        Handler handler = new Handler();
-        handler.postDelayed(new Runnable() {
-            @Override
-            public void run() {
-                getFragmentManager().popBackStack();
-            }
-        }, 2500);
-    }
-
-    private void getAccountForImport() {
-        final ArrayList<ContactAccount> accounts = new ArrayList<>();
-
-        // add local one
-        accounts.add(new ContactAccount("Local contacts", null, null));
-
-        Cursor cursor = null;
-        try {
-            cursor = getContext().getContentResolver().query(ContactsContract.RawContacts.CONTENT_URI,
-                    new String[]{ContactsContract.RawContacts.ACCOUNT_NAME, ContactsContract.RawContacts.ACCOUNT_TYPE},
-                    null,
-                    null,
-                    null);
-
-            if (cursor != null && cursor.getCount() > 0) {
-                while (cursor.moveToNext()) {
-                    String name = cursor.getString(cursor.getColumnIndex(ContactsContract.RawContacts.ACCOUNT_NAME));
-                    String type = cursor.getString(cursor.getColumnIndex(ContactsContract.RawContacts.ACCOUNT_TYPE));
-
-                    ContactAccount account = new ContactAccount(name, name, type);
-
-                    if (!accounts.contains(account)) {
-                        accounts.add(account);
-                    }
-                }
-
-                cursor.close();
-            }
-        } catch (Exception e) {
-            Log_OC.d(TAG, e.getMessage());
-        } finally {
-            cursor.close();
-        }
-
-        if (accounts.size() == 1) {
-            importContacts(accounts.get(0));
-        } else {
-
-            ArrayAdapter adapter = new ArrayAdapter<>(getContext(), android.R.layout.simple_list_item_1, accounts);
-            AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
-            builder.setTitle(R.string.contactlist_account_chooser_title)
-                    .setAdapter(adapter, new DialogInterface.OnClickListener() {
-                        @Override
-                        public void onClick(DialogInterface dialog, int which) {
-                            importContacts(accounts.get(which));
-                        }
-                    }).show();
-        }
-    }
-
-    private boolean checkAndAskForContactsWritePermission() {
-        // check permissions
-        if (!PermissionUtil.checkSelfPermission(getContext(), Manifest.permission.WRITE_CONTACTS)) {
-            PermissionUtil.requestWriteContactPermission(this);
-            return false;
-        } else {
-            return true;
-        }
-    }
-
-    @Override
-    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
-
-        if (requestCode == PermissionUtil.PERMISSIONS_WRITE_CONTACTS) {
-            for (int index = 0; index < permissions.length; index++) {
-                if (Manifest.permission.WRITE_CONTACTS.equalsIgnoreCase(permissions[index])) {
-                    if (grantResults[index] >= 0) {
-                        getAccountForImport();
-                    } else {
-                        Snackbar.make(getView(), R.string.contactlist_no_permission, Snackbar.LENGTH_LONG).show();
-                    }
-                    break;
-                }
-            }
-        }
-    }
-
-    private class ContactAccount {
-        private String displayName;
-        private String name;
-        private String type;
-
-        ContactAccount(String displayName, String name, String type) {
-            this.displayName = displayName;
-            this.name = name;
-            this.type = type;
-        }
-
-        @Override
-        public boolean equals(Object obj) {
-            if (obj instanceof ContactAccount) {
-                ContactAccount other = (ContactAccount) obj;
-                return this.name.equalsIgnoreCase(other.name) && this.type.equalsIgnoreCase(other.type);
-            } else {
-                return false;
-            }
-        }
-
-        @Override
-        public String toString() {
-            return displayName;
-        }
-    }
-}
-
-class ContactListAdapter extends RecyclerView.Adapter<ContactListFragment.ContactItemViewHolder> {
-    private List<VCard> vCards;
-    private Set<Integer> checkedVCards;
-
-    private Context context;
-
-    ContactListAdapter(Context context, List<VCard> vCards) {
-        this.vCards = vCards;
-        this.context = context;
-        this.checkedVCards = new HashSet<>();
-    }
-
-    ContactListAdapter(Context context, List<VCard> vCards,
-                       Set<Integer> checkedVCards) {
-        this.vCards = vCards;
-        this.context = context;
-        this.checkedVCards = checkedVCards;
-    }
-
-
-    public int getCheckedCount() {
-        if (checkedVCards != null) {
-            return checkedVCards.size();
-        } else {
-            return 0;
-        }
-    }
-
-    public int[] getCheckedIntArray() {
-        int[] intArray;
-        if (checkedVCards != null && checkedVCards.size() > 0) {
-            intArray = new int[checkedVCards.size()];
-            int i = 0;
-            for (int position: checkedVCards) {
-                intArray[i] = position;
-                i++;
-            }
-            return intArray;
-        } else {
-            intArray = new int[0];
-            return intArray;
-        }
-    }
-
-    @Override
-    public ContactListFragment.ContactItemViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-        View view = LayoutInflater.from(context).inflate(R.layout.contactlist_list_item, parent, false);
-
-        return new ContactListFragment.ContactItemViewHolder(view);
-    }
-
-    @Override
-    public void onBindViewHolder(final ContactListFragment.ContactItemViewHolder holder, final int position) {
-        final VCard vcard = vCards.get(position);
-
-        if (vcard != null) {
-
-            if (checkedVCards.contains(position)) {
-                holder.getName().setChecked(true);
-            } else {
-                holder.getName().setChecked(false);
-            }
-            // name
-            StructuredName name = vcard.getStructuredName();
-            if (name != null) {
-                String first = (name.getGiven() == null) ? "" : name.getGiven() + " ";
-                String last = (name.getFamily() == null) ? "" : name.getFamily();
-                holder.getName().setText(first + last);
-            } else {
-                holder.getName().setText("");
-            }
-
-            // photo
-            if (vcard.getPhotos().size() > 0) {
-                byte[] data = vcard.getPhotos().get(0).getData();
-
-                Bitmap thumbnail = BitmapFactory.decodeByteArray(data, 0, data.length);
-                RoundedBitmapDrawable drawable = BitmapUtils.bitmapToCircularBitmapDrawable(context.getResources(),
-                        thumbnail);
-
-                holder.getBadge().setImageDrawable(drawable);
-            } else {
-                try {
-                    holder.getBadge().setImageDrawable(
-                            TextDrawable.createNamedAvatar(
-                                    holder.getName().getText().toString(),
-                                    context.getResources().getDimension(R.dimen.list_item_avatar_icon_radius)
-                            )
-                    );
-                } catch (Exception e) {
-                    holder.getBadge().setImageResource(R.drawable.ic_user);
-                }
-            }
-
-            // Checkbox
-            holder.setVCardListener(new View.OnClickListener() {
-                @Override
-                public void onClick(View v) {
-                    holder.getName().setChecked(!holder.getName().isChecked());
-
-                    if (holder.getName().isChecked()) {
-                        if (!checkedVCards.contains(position)) {
-                            checkedVCards.add(position);
-                        }
-                        if (checkedVCards.size() == 1) {
-                            EventBus.getDefault().post(new VCardToggleEvent(true));
-                        }
-
-
-                    } else {
-                        if (checkedVCards.contains(position)) {
-                            checkedVCards.remove(position);
-                        }
-
-                        if (checkedVCards.size() == 0) {
-                            EventBus.getDefault().post(new VCardToggleEvent(false));
-                        }
-                    }
-                }
-            });
-        }
-    }
-
-    @Override
-    public int getItemCount() {
-        return vCards.size();
-    }
-
-}

src/main/java/com/owncloud/android/ui/fragment/ContactsBackup/ContactsBackupFragment.java

@@ -1,462 +0,0 @@
-/**
- * Nextcloud Android client application
- *
- * @author Mario Danic
- * Copyright (C) 2017 Mario Danic
- * Copyright (C) 2017 Nextcloud GmbH.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * at your option) any later version.
- *
- * This program 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.owncloud.android.ui.fragment.contactsbackup;
-
-import android.Manifest;
-import android.app.DatePickerDialog;
-import android.content.DialogInterface;
-import android.content.SharedPreferences;
-import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.design.widget.Snackbar;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentTransaction;
-import android.support.v7.widget.AppCompatButton;
-import android.support.v7.widget.SwitchCompat;
-import android.view.LayoutInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.CompoundButton;
-import android.widget.DatePicker;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import com.evernote.android.job.JobRequest;
-import com.evernote.android.job.util.support.PersistableBundleCompat;
-import com.owncloud.android.R;
-import com.owncloud.android.datamodel.OCFile;
-import com.owncloud.android.db.PreferenceManager;
-import com.owncloud.android.services.ContactsBackupJob;
-import com.owncloud.android.ui.activity.ContactsPreferenceActivity;
-import com.owncloud.android.ui.fragment.FileFragment;
-import com.owncloud.android.utils.DisplayUtils;
-import com.owncloud.android.utils.PermissionUtil;
-
-import java.util.Calendar;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.Date;
-import java.util.Vector;
-
-import butterknife.BindView;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-
-import static com.owncloud.android.ui.activity.ContactsPreferenceActivity.PREFERENCE_CONTACTS_AUTOMATIC_BACKUP;
-import static com.owncloud.android.ui.activity.ContactsPreferenceActivity.PREFERENCE_CONTACTS_LAST_BACKUP;
-
-public class ContactsBackupFragment extends FileFragment {
-    public static final String TAG = ContactsBackupFragment.class.getSimpleName();
-
-    private SharedPreferences sharedPreferences;
-
-    @BindView(R.id.contacts_automatic_backup)
-    public SwitchCompat backupSwitch;
-
-    @BindView(R.id.contacts_header_restore)
-    public TextView contactsRestoreHeader;
-
-    @BindView(R.id.contacts_datepicker)
-    public AppCompatButton contactsDatePickerBtn;
-
-    @BindView(R.id.contacts_last_backup_timestamp)
-    public TextView lastBackup;
-
-    private Date selectedDate = null;
-    private boolean calendarPickerOpen;
-
-    private DatePickerDialog datePickerDialog;
-
-
-    private static final String KEY_CALENDAR_PICKER_OPEN = "IS_CALENDAR_PICKER_OPEN";
-    private static final String KEY_CALENDAR_DAY = "CALENDAR_DAY";
-    private static final String KEY_CALENDAR_MONTH = "CALENDAR_MONTH";
-    private static final String KEY_CALENDAR_YEAR = "CALENDAR_YEAR";
-
-
-    @Override
-    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-
-        View view = inflater.inflate(R.layout.contacts_backup_fragment, null);
-        ButterKnife.bind(this, view);
-
-        setHasOptionsMenu(true);
-
-        final ContactsPreferenceActivity contactsPreferenceActivity = (ContactsPreferenceActivity) getActivity();
-
-        contactsPreferenceActivity.getSupportActionBar().setTitle(R.string.actionbar_contacts);
-        contactsPreferenceActivity.getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-
-        sharedPreferences = PreferenceManager.getDefaultSharedPreferences(contactsPreferenceActivity);
-
-        backupSwitch.setChecked(sharedPreferences.getBoolean(PREFERENCE_CONTACTS_AUTOMATIC_BACKUP, false));
-
-        backupSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
-            @Override
-            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
-                if (isChecked &&
-                        checkAndAskForContactsReadPermission(PermissionUtil.PERMISSIONS_READ_CONTACTS_AUTOMATIC)) {
-                    // store value
-                    setAutomaticBackup(backupSwitch, true);
-
-                    // enable daily job
-                    ContactsPreferenceActivity.startContactBackupJob(contactsPreferenceActivity.getAccount());
-                } else {
-                    setAutomaticBackup(backupSwitch, false);
-
-                    // cancel pending jobs
-                    ContactsPreferenceActivity.cancelContactBackupJob(contactsPreferenceActivity);
-                }
-            }
-        });
-
-        // display last backup
-        Long lastBackupTimestamp = sharedPreferences.getLong(PREFERENCE_CONTACTS_LAST_BACKUP, -1);
-
-        if (lastBackupTimestamp == -1) {
-            lastBackup.setText(R.string.contacts_preference_backup_never);
-        } else {
-            lastBackup.setText(DisplayUtils.getRelativeTimestamp(contactsPreferenceActivity, lastBackupTimestamp));
-        }
-
-        if (savedInstanceState != null && savedInstanceState.getBoolean(KEY_CALENDAR_PICKER_OPEN, false)) {
-            if (savedInstanceState.getInt(KEY_CALENDAR_YEAR, -1) != -1 &&
-                    savedInstanceState.getInt(KEY_CALENDAR_MONTH, -1) != -1 &&
-                    savedInstanceState.getInt(KEY_CALENDAR_DAY, -1) != -1) {
-                selectedDate = new Date(savedInstanceState.getInt(KEY_CALENDAR_YEAR),
-                        savedInstanceState.getInt(KEY_CALENDAR_MONTH), savedInstanceState.getInt(KEY_CALENDAR_DAY));
-            }
-            calendarPickerOpen = true;
-        }
-
-
-        return view;
-    }
-
-    @Override
-    public void onActivityCreated(Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-
-
-    }
-
-    @Override
-    public void onResume() {
-        super.onResume();
-
-        if (calendarPickerOpen) {
-            if (selectedDate != null) {
-                openDate(selectedDate);
-            } else {
-                openDate(null);
-            }
-        }
-
-        final ContactsPreferenceActivity contactsPreferenceActivity = (ContactsPreferenceActivity) getActivity();
-
-        String backupFolderString = getResources().getString(R.string.contacts_backup_folder) + OCFile.PATH_SEPARATOR;
-        OCFile backupFolder = contactsPreferenceActivity.getStorageManager().getFileByPath(backupFolderString);
-
-        Vector<OCFile> backupFiles = contactsPreferenceActivity.getStorageManager().getFolderContent(backupFolder,
-                false);
-
-        if (backupFiles == null || backupFiles.size() == 0 ||
-                sharedPreferences.getLong(PREFERENCE_CONTACTS_LAST_BACKUP, -1) == -1) {
-            contactsRestoreHeader.setVisibility(View.GONE);
-            contactsDatePickerBtn.setVisibility(View.GONE);
-        } else {
-            contactsRestoreHeader.setVisibility(View.VISIBLE);
-            contactsDatePickerBtn.setVisibility(View.VISIBLE);
-        }
-    }
-
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        final ContactsPreferenceActivity contactsPreferenceActivity = (ContactsPreferenceActivity) getActivity();
-
-        boolean retval;
-        switch (item.getItemId()) {
-            case android.R.id.home:
-                if (contactsPreferenceActivity.isDrawerOpen()) {
-                    contactsPreferenceActivity.closeDrawer();
-                } else {
-                    contactsPreferenceActivity.openDrawer();
-                }
-                retval = true;
-                break;
-
-            default:
-                retval = super.onOptionsItemSelected(item);
-                break;
-        }
-        return retval;
-    }
-
-    @Override
-    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
-
-        if (requestCode == PermissionUtil.PERMISSIONS_READ_CONTACTS_AUTOMATIC) {
-            for (int index = 0; index < permissions.length; index++) {
-                if (Manifest.permission.READ_CONTACTS.equalsIgnoreCase(permissions[index])) {
-                    if (grantResults[index] >= 0) {
-                        setAutomaticBackup(backupSwitch, true);
-                    } else {
-                        setAutomaticBackup(backupSwitch, false);
-                    }
-
-                    break;
-                }
-            }
-        }
-
-        if (requestCode == PermissionUtil.PERMISSIONS_READ_CONTACTS_MANUALLY) {
-            for (int index = 0; index < permissions.length; index++) {
-                if (Manifest.permission.READ_CONTACTS.equalsIgnoreCase(permissions[index])) {
-                    if (grantResults[index] >= 0) {
-                        startContactsBackupJob();
-                    }
-
-                    break;
-                }
-            }
-        }
-    }
-
-    @OnClick(R.id.contacts_backup_now)
-    public void backupContacts() {
-        if (checkAndAskForContactsReadPermission(PermissionUtil.PERMISSIONS_READ_CONTACTS_MANUALLY)) {
-            startContactsBackupJob();
-        }
-    }
-
-    private void startContactsBackupJob() {
-        final ContactsPreferenceActivity contactsPreferenceActivity = (ContactsPreferenceActivity) getActivity();
-
-        PersistableBundleCompat bundle = new PersistableBundleCompat();
-        bundle.putString(ContactsBackupJob.ACCOUNT, contactsPreferenceActivity.getAccount().name);
-        bundle.putBoolean(ContactsBackupJob.FORCE, true);
-
-        new JobRequest.Builder(ContactsBackupJob.TAG)
-                .setExtras(bundle)
-                .setExecutionWindow(3_000L, 10_000L)
-                .setRequiresCharging(false)
-                .setPersisted(false)
-                .setUpdateCurrent(false)
-                .build()
-                .schedule();
-
-        Snackbar.make(getView().findViewById(R.id.contacts_linear_layout), R.string.contacts_preferences_backup_scheduled,
-                Snackbar.LENGTH_LONG).show();
-    }
-
-    private void setAutomaticBackup(SwitchCompat backupSwitch, boolean bool) {
-        backupSwitch.setChecked(bool);
-        SharedPreferences.Editor editor = sharedPreferences.edit();
-        editor.putBoolean(PREFERENCE_CONTACTS_AUTOMATIC_BACKUP, bool);
-        editor.apply();
-    }
-
-    private boolean checkAndAskForContactsReadPermission(final int permission) {
-        final ContactsPreferenceActivity contactsPreferenceActivity = (ContactsPreferenceActivity) getActivity();
-
-        // check permissions
-        if ((PermissionUtil.checkSelfPermission(contactsPreferenceActivity, Manifest.permission.READ_CONTACTS))) {
-            return true;
-        } else {
-            // Check if we should show an explanation
-            if (PermissionUtil.shouldShowRequestPermissionRationale(contactsPreferenceActivity,
-                    android.Manifest.permission.READ_CONTACTS)) {
-                // Show explanation to the user and then request permission
-                Snackbar snackbar = Snackbar.make(getView().findViewById(R.id.contacts_linear_layout),
-                        R.string.contacts_read_permission,
-                        Snackbar.LENGTH_INDEFINITE)
-                        .setAction(R.string.common_ok, new View.OnClickListener() {
-                            @Override
-                            public void onClick(View v) {
-                                PermissionUtil.requestReadContactPermission(contactsPreferenceActivity, permission);
-                            }
-                        });
-
-                DisplayUtils.colorSnackbar(contactsPreferenceActivity, snackbar);
-
-                snackbar.show();
-
-                return false;
-            } else {
-                // No explanation needed, request the permission.
-                PermissionUtil.requestReadContactPermission(contactsPreferenceActivity, permission);
-
-                return false;
-            }
-        }
-    }
-
-    @OnClick(R.id.contacts_datepicker)
-    public void openCleanDate() {
-        openDate(null);
-    }
-
-    public void openDate(@Nullable Date savedDate) {
-        final ContactsPreferenceActivity contactsPreferenceActivity = (ContactsPreferenceActivity) getActivity();
-
-
-        String backupFolderString = getResources().getString(R.string.contacts_backup_folder) + OCFile.PATH_SEPARATOR;
-        OCFile backupFolder = contactsPreferenceActivity.getStorageManager().getFileByPath(backupFolderString);
-
-        Vector<OCFile> backupFiles = contactsPreferenceActivity.getStorageManager().getFolderContent(backupFolder,
-                false);
-
-        Collections.sort(backupFiles, new Comparator<OCFile>() {
-            @Override
-            public int compare(OCFile o1, OCFile o2) {
-                if (o1.getModificationTimestamp() == o2.getModificationTimestamp()) {
-                    return 0;
-                }
-
-                if (o1.getModificationTimestamp() > o2.getModificationTimestamp()) {
-                    return 1;
-                } else {
-                    return -1;
-                }
-            }
-        });
-
-        Calendar cal = Calendar.getInstance();
-        int year;
-        int month;
-        int day;
-
-        if (savedDate == null) {
-            year = cal.get(Calendar.YEAR);
-            month = cal.get(Calendar.MONTH) + 1;
-            day = cal.get(Calendar.DAY_OF_MONTH);
-        } else {
-            year = savedDate.getYear();
-            month = savedDate.getMonth();
-            day = savedDate.getDay();
-        }
-
-
-        DatePickerDialog.OnDateSetListener dateSetListener = new DatePickerDialog.OnDateSetListener() {
-            @Override
-            public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
-                selectedDate = new Date(year, month, dayOfMonth);
-
-                String backupFolderString = getResources().getString(R.string.contacts_backup_folder) + OCFile.PATH_SEPARATOR;
-                OCFile backupFolder = contactsPreferenceActivity.getStorageManager().getFileByPath(backupFolderString);
-                Vector<OCFile> backupFiles = contactsPreferenceActivity.getStorageManager().getFolderContent(
-                        backupFolder, false);
-
-                // find file with modification with date and time between 00:00 and 23:59
-                // if more than one file exists, take oldest
-                Calendar date = Calendar.getInstance();
-                date.set(year, month, dayOfMonth);
-
-                // start
-                date.set(Calendar.HOUR, 0);
-                date.set(Calendar.MINUTE, 0);
-                date.set(Calendar.SECOND, 1);
-                date.set(Calendar.MILLISECOND, 0);
-                date.set(Calendar.AM_PM, Calendar.AM);
-                Long start = date.getTimeInMillis();
-
-                // end
-                date.set(Calendar.HOUR, 23);
-                date.set(Calendar.MINUTE, 59);
-                date.set(Calendar.SECOND, 59);
-                Long end = date.getTimeInMillis();
-
-                OCFile backupToRestore = null;
-
-                for (OCFile file : backupFiles) {
-                    if (start < file.getModificationTimestamp() && end > file.getModificationTimestamp()) {
-                        if (backupToRestore == null) {
-                            backupToRestore = file;
-                        } else if (backupToRestore.getModificationTimestamp() < file.getModificationTimestamp()) {
-                            backupToRestore = file;
-                        }
-                    }
-                }
-
-                if (backupToRestore != null) {
-                    Fragment contactListFragment = ContactListFragment.newInstance(backupToRestore,
-                            contactsPreferenceActivity.getAccount());
-
-                    FragmentTransaction transaction = contactsPreferenceActivity.getSupportFragmentManager().
-                            beginTransaction();
-                    transaction.replace(R.id.frame_container, contactListFragment);
-                    transaction.addToBackStack(null);
-                    transaction.commit();
-                } else {
-                    Toast.makeText(contactsPreferenceActivity, R.string.contacts_preferences_no_file_found,
-                            Toast.LENGTH_SHORT).show();
-                }
-            }
-        };
-
-        if (backupFiles.size() > 0 && backupFiles.lastElement() != null) {
-            datePickerDialog = new DatePickerDialog(contactsPreferenceActivity,
-                    dateSetListener, year, month, day);
-            datePickerDialog.getDatePicker().setMaxDate(backupFiles.lastElement().getModificationTimestamp());
-            datePickerDialog.getDatePicker().setMinDate(backupFiles.firstElement().getModificationTimestamp());
-
-            datePickerDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
-                @Override
-                public void onDismiss(DialogInterface dialog) {
-                    selectedDate = null;
-                }
-            });
-
-            datePickerDialog.show();
-        } else {
-            Toast.makeText(contactsPreferenceActivity, R.string.contacts_preferences_something_strange_happened,
-                    Toast.LENGTH_SHORT).show();
-        }
-    }
-
-    @Override
-    public void onStop() {
-        super.onStop();
-        if (datePickerDialog != null) {
-            datePickerDialog.dismiss();
-        }
-    }
-
-    @Override
-    public void onSaveInstanceState(Bundle outState) {
-        super.onSaveInstanceState(outState);
-        if (datePickerDialog != null) {
-            outState.putBoolean(KEY_CALENDAR_PICKER_OPEN, datePickerDialog.isShowing());
-
-            if (datePickerDialog.isShowing()) {
-                outState.putInt(KEY_CALENDAR_DAY, datePickerDialog.getDatePicker().getDayOfMonth());
-                outState.putInt(KEY_CALENDAR_MONTH, datePickerDialog.getDatePicker().getMonth());
-                outState.putInt(KEY_CALENDAR_YEAR, datePickerDialog.getDatePicker().getYear());
-            }
-
-        }
-    }
-
-}