Java tutorial
/* * Copyright (c) 2014, the SenSee authors. Please see the AUTHORS file * for details. * * Licensed under the GNU Public License, Version 3.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.gnu.org/copyleft/gpl.html * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package sysnetlab.android.sdc.ui.fragments; import java.util.List; import sysnetlab.android.sdc.R; import sysnetlab.android.sdc.sensor.AbstractSensor; import sysnetlab.android.sdc.sensor.SensorDiscoverer; import sysnetlab.android.sdc.ui.CreateExperimentActivity; import sysnetlab.android.sdc.ui.adapters.SensorListAdapter; import android.app.Activity; import android.os.Bundle; import android.support.v4.app.Fragment; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.CheckBox; import android.widget.ListView; import android.widget.RelativeLayout; public class ExperimentSensorSelectionFragment extends Fragment { private boolean mHavingHeader; private View mView; private ListView mListView; private ArrayAdapter<AbstractSensor> mSensorListAdaptor; private OnFragmentClickListener mCallback; public interface OnFragmentClickListener { public void onBtnClearClicked_ExperimentSensorSelectionFragment(boolean checked); public void onSensorClicked_ExperimentSensorSelectionFragment(AbstractSensor sensor); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.d("SensorDataCollector", "entered ExperimentSensorSelectionFragment::onCreate(). "); mHavingHeader = false; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { Log.d("SensorDataCollector", "ExperimentSensorSelectionFragment::onCreateView(): " + "entered with mHavingHeader = " + mHavingHeader); mView = inflater.inflate(R.layout.fragment_sensor_selection, container, false); mHavingHeader = getActivity().getIntent().getBooleanExtra("havingheader", false); if (mHavingHeader) { RelativeLayout layout = (RelativeLayout) mView.findViewById(R.id.layout_sensor_selection_header); layout.setVisibility(View.VISIBLE); } // find the container for the list RelativeLayout layout = (RelativeLayout) mView.findViewById(R.id.layout_sensor_selection_list); mListView = new ListView(getActivity()); if (!SensorDiscoverer.isInitialized()) SensorDiscoverer.initialize(getActivity().getApplicationContext()); List<AbstractSensor> lstSensors = SensorDiscoverer.discoverSensorList(); Activity activity = getActivity(); if (activity instanceof CreateExperimentActivity) { ((CreateExperimentActivity) activity).selectSensors(lstSensors); } else { Log.d("SensorDataCollector", "ExperimentSensorSelectionFragment::onCreate(): " + "not a CreateExperimentActivity."); } mSensorListAdaptor = new SensorListAdapter(getActivity(), lstSensors); mListView.setAdapter(mSensorListAdaptor); layout.addView(mListView); return mView; } @Override public void onAttach(Activity activity) { super.onAttach(activity); try { mCallback = (OnFragmentClickListener) activity; } catch (ClassCastException e) { Log.e("SensorDataCollector", "ExperimentSensorSelectionFragment::onAttach(): failed to cast Activity to OnFragmentClickListener."); e.printStackTrace(); throw new RuntimeException("Failed to cast Activity to OnFragmentClickListener"); } } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); Log.d("SensorDataCollector", "ExperimentSensorSelectionFragment::onActivityCreated() called."); final CheckBox checkAll = ((CheckBox) mView.findViewById(R.id.checkbox_check_all)); checkAll.setOnClickListener(new CheckBox.OnClickListener() { @Override public void onClick(View v) { final boolean checked = checkAll.isChecked(); mCallback.onBtnClearClicked_ExperimentSensorSelectionFragment(checked); } }); // ((ListView) mView.findViewById(R.id.layout_sensor_list)) mListView.setOnItemClickListener(new ListView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> listView, View view, int position, long id) { mCallback.onSensorClicked_ExperimentSensorSelectionFragment( (AbstractSensor) listView.getItemAtPosition(position)); } }); } public ArrayAdapter<AbstractSensor> getSensorListAdapter() { return mSensorListAdaptor; } public ListView getSensorListView() { return mListView; } }