Java tutorial
/* * Copyright (C) 2005-2016 Alfresco Software Limited. * * This file is part of Alfresco Activiti Mobile for Android. * * Alfresco Activiti Mobile for Android is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Alfresco Activiti Mobile for Android 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with Alfresco. If not, see <http://www.gnu.org/licenses/>. */ package com.activiti.android.ui.fragments.form.picker; import java.text.MessageFormat; import java.util.ArrayList; import java.util.HashMap; import java.util.Map; import retrofit2.Call; import retrofit2.Callback; import retrofit2.Response; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.GridView; import com.activiti.android.app.R; import com.activiti.android.ui.fragments.FragmentDisplayer; import com.activiti.android.ui.fragments.builder.ListingFragmentBuilder; import com.activiti.android.ui.fragments.task.form.TaskFormFoundationFragment; import com.activiti.android.ui.fragments.user.LightUserAdapter; import com.activiti.android.ui.utils.DisplayUtils; import com.activiti.android.ui.utils.UIUtils; import com.activiti.client.api.model.common.ResultList; import com.activiti.client.api.model.idm.LightUserRepresentation; /** * @author Jean Marie Pascal */ public class UserPickerFragment extends IdmPickerFragment { public static final String TAG = UserPickerFragment.class.getName(); private Map<String, LightUserRepresentation> selectedItems = new HashMap<>(1); protected String taskId, processId; // ////////////////////////////////////////////////////////////////////// // CONSTRUCTORS // ////////////////////////////////////////////////////////////////////// public UserPickerFragment() { emptyListMessageId = R.string.person_not_found; retrieveDataOnCreation = false; setHasOptionsMenu(true); } // ////////////////////////////////////////////////////////////////////// // LIFE CYCLE // ////////////////////////////////////////////////////////////////////// protected static UserPickerFragment newInstanceByTemplate(Bundle b) { UserPickerFragment cbf = new UserPickerFragment(); cbf.setArguments(b); return cbf; } @Override protected void onRetrieveParameters(Bundle bundle) { super.onRetrieveParameters(bundle); taskId = getArguments().getString(ARGUMENT_TASK_ID); processId = getArguments().getString(ARGUMENT_PROCESS_ID); if (fragmentPick instanceof onPickAuthorityFragment && fieldId != null) { selectedItems = ((onPickAuthorityFragment) fragmentPick).getPersonSelected(fieldId); } } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { setRootView(super.onCreateView(inflater, container, savedInstanceState)); if (getMode() == MODE_PICK) { show(R.id.validation_panel); validation = UIUtils.initValidation(getRootView(), R.string.general_action_confirm); updatePickButton(); validation.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { onSelect(selectedItems); if (getDialog() != null) { getDialog().dismiss(); } else { getFragmentManager().popBackStack(); } } }); if (fragmentPick instanceof TaskFormFoundationFragment) { Button clear = UIUtils.initClear(getRootView(), R.string.general_action_clear, false); clear.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { onClear(); if (getDialog() != null) { getDialog().dismiss(); } else { getFragmentManager().popBackStack(); } } }); } else { UIUtils.initClear(getRootView(), R.string.general_action_clear, true); } } return getRootView(); } // ////////////////////////////////////////////////////////////////////// // LOADERS // ////////////////////////////////////////////////////////////////////// protected Callback<ResultList<LightUserRepresentation>> callBack = new Callback<ResultList<LightUserRepresentation>>() { @Override public void onResponse(Call<ResultList<LightUserRepresentation>> call, Response<ResultList<LightUserRepresentation>> response) { if (!response.isSuccessful()) { onFailure(call, new Exception(response.message())); return; } displayData(response.body()); } @Override public void onFailure(Call<ResultList<LightUserRepresentation>> call, Throwable error) { displayError(error); } }; @Override protected ArrayAdapter<?> onAdapterCreation() { return new LightUserAdapter(getActivity(), R.layout.row_two_lines, new ArrayList<LightUserRepresentation>(0), selectedItems); } @Override protected void performRequest() { getAPI().getUserGroupService().getUsers(keywords, taskId, processId, groupId, null, callBack); } // /////////////////////////////////////////////////////////////////////////// // LIST ACTIONS // /////////////////////////////////////////////////////////////////////////// @Override public void onListItemClick(GridView l, View v, int position, long id) { LightUserRepresentation item = (LightUserRepresentation) l.getItemAtPosition(position); if (mode == MODE_PICK && !singleChoice) { l.setChoiceMode(GridView.CHOICE_MODE_MULTIPLE); } else if (mode == MODE_PICK && !singleChoice) { l.setChoiceMode(GridView.CHOICE_MODE_SINGLE); } else if (mode == MODE_LISTING && DisplayUtils.hasCentralPane(getActivity())) { l.setChoiceMode(GridView.CHOICE_MODE_SINGLE); } Boolean hideDetails = false; if (!selectedItems.isEmpty()) { hideDetails = selectedItems.containsKey(item.getEmail()); if (mode == MODE_PICK && !singleChoice) { selectedItems.remove(item.getEmail()); } else { selectedItems.clear(); } } l.setItemChecked(position, true); v.setSelected(true); selectedItems.put(item.getEmail(), item); if (hideDetails) { if (mode == MODE_PICK) { selectedItems.remove(item.getEmail()); updatePickButton(); } else if (mode == MODE_LISTING && DisplayUtils.hasCentralPane(getActivity())) { FragmentDisplayer.with(getActivity()).remove(DisplayUtils.getCentralFragmentId(getActivity())); selectedItems.clear(); } } else { if (mode == MODE_LISTING) { // Show properties // UserProfileFragment.with(getActivity()).personId(item.getIdentifier()).display(); } else if (mode == MODE_PICK) { validation.setEnabled(true); updatePickButton(); } } } protected void updatePickButton() { validation.setEnabled(!selectedItems.isEmpty()); validation.setText( String.format(MessageFormat.format(getString(R.string.picker_assign_person), selectedItems.size()), selectedItems.size())); } // /////////////////////////////////////////////////////////////////////////// // BUILDER // /////////////////////////////////////////////////////////////////////////// public static Builder with(FragmentActivity activity) { return new Builder(activity); } public static class Builder extends ListingFragmentBuilder { // /////////////////////////////////////////////////////////////////////////// // CONSTRUCTORS // /////////////////////////////////////////////////////////////////////////// public Builder(FragmentActivity activity) { super(activity); this.extraConfiguration = new Bundle(); } public Builder(FragmentActivity appActivity, Map<String, Object> configuration) { super(appActivity, configuration); } // /////////////////////////////////////////////////////////////////////////// // SETTERS // /////////////////////////////////////////////////////////////////////////// protected Fragment createFragment(Bundle b) { return newInstanceByTemplate(b); } // /////////////////////////////////////////////////////////////////////////// // SETTERS // /////////////////////////////////////////////////////////////////////////// public Builder fieldId(String fieldId) { extraConfiguration.putString(ARGUMENT_FIELD_ID, fieldId); return this; } public Builder taskId(String taskId) { extraConfiguration.putString(ARGUMENT_TASK_ID, taskId); return this; } public Builder processId(String processId) { extraConfiguration.putString(ARGUMENT_PROCESS_ID, processId); return this; } public Builder singleChoice(Boolean singleChoice) { extraConfiguration.putBoolean(ARGUMENT_SINGLE_CHOICE, singleChoice); return this; } public Builder restrictGroup(String groupId) { extraConfiguration.putString(ARGUMENT_GROUP_ID, groupId); return this; } public Builder fragmentTag(String fragmentTag) { extraConfiguration.putString(ARGUMENT_FRAGMENT_TAG, fragmentTag); return this; } public Builder title(String title) { extraConfiguration.putString(ARGUMENT_TITLE, title); return this; } } }