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.sensor.AndroidSensor; import sysnetlab.android.sdc.sensor.AbstractSensor; import sysnetlab.android.sdc.sensor.SensorProperty; import sysnetlab.android.sdc.sensor.audio.AudioRecordParameter; import sysnetlab.android.sdc.sensor.audio.AudioRecordSettingDataSource; import sysnetlab.android.sdc.sensor.audio.AudioSensor; import sysnetlab.android.sdc.ui.UserInterfaceUtils; import sysnetlab.android.sdc.R; import android.support.v4.app.DialogFragment; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; import android.app.Activity; public class ExperimentSensorSetupFragment extends Fragment { private OnFragmentClickListener mCallback; private View mView; private AbstractSensor mSensor; private List<AudioRecordParameter> mAudioRecordParameters; private ListView mListView; public interface OnFragmentClickListener { public void onBtnSetParameterClicked_SensorSetupFragment(View v, AbstractSensor sensor); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // TODO: handle configuration changes AudioRecordSettingDataSource.initializeInstance(getActivity()); AudioRecordSettingDataSource dbSource = AudioRecordSettingDataSource.getInstance(); dbSource.open(); if (!dbSource.isDataSourceReady()) { // add progress wheel // if false, disable audio recording dbSource.prepareDataSource(); } mAudioRecordParameters = dbSource.getAllAudioRecordParameters(); dbSource.close(); switch (mSensor.getMajorType()) { case AbstractSensor.ANDROID_SENSOR: mView = inflater.inflate(R.layout.fragment_sensor_setup, container, false); if (mSensor != null) { updateAndroidSensorSetupView(mSensor); } break; case AbstractSensor.AUDIO_SENSOR: mView = inflater.inflate(R.layout.fragment_audio_sensor_setup, container, false); if (mSensor != null) { AudioRecordParameter param = ((AudioSensor) mSensor).getAudioRecordParameter(); Log.d("SensorDataCollector", "AUDIO_SENSOR: (id, resid) = " + param.getSource().getSourceId() + "," + param.getSource().getSourceNameResId()); updateAudioSensorSetupView(); } break; case AbstractSensor.CAMERA_SENSOR: // TODO: camera sensor Log.w("SensorDataCollector", "ToDo: Camera sensor."); mView = inflater.inflate(R.layout.fragment_sensor_setup, container, false); break; case AbstractSensor.WIFI_SENSOR: // TODO: WiFi sensor Log.w("SensorDataCollector", "Todo: WiFi RSSI sensor."); mView = inflater.inflate(R.layout.fragment_sensor_setup, container, false); break; case AbstractSensor.BLUETOOTH_SENSOR: // TODO: Bluetooth sensor Log.w("SensorDataCollector", "Todo: Bluetooth RSSI sensor."); mView = inflater.inflate(R.layout.fragment_sensor_setup, container, false); break; default: Log.e("SensorDataCollector", "Invalid major sensor type = " + mSensor.getMajorType()); mView = inflater.inflate(R.layout.fragment_sensor_setup, container, false); String strWarnMsgFormatter = mView.getResources().getString(R.string.text_sensor_type_x_not_handled); String strWargMsg = String.format(strWarnMsgFormatter, mSensor.getMajorType()); Toast.makeText(getActivity(), strWargMsg, Toast.LENGTH_SHORT).show(); break; } return mView; } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); // TODO: handle configuration changes } @Override public void onAttach(Activity activity) { super.onAttach(activity); try { mCallback = (OnFragmentClickListener) activity; } catch (ClassCastException e) { throw new ClassCastException(activity.toString() + " must implement OnClickedListener"); } } public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); ((Button) mView.findViewById(R.id.button_sensor_setup_set_parameter)) .setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { mCallback.onBtnSetParameterClicked_SensorSetupFragment(v, mSensor); } }); } public void setSensor(AbstractSensor sensor) { mSensor = sensor; } private void updateAndroidSensorSetupView(AbstractSensor sensor) { TextView tv = (TextView) mView.findViewById(R.id.textview_sensor_setup_sensor_name); tv.setText(sensor.getName()); Log.d("SensorDataCollector", "Android sensor."); UserInterfaceUtils.fillSensorProperties(getActivity(), (ListView) mView.findViewById(R.id.listview_sensor_setup_sensor_properties), sensor); EditText etSamplingRate = (EditText) mView.findViewById(R.id.edittext_sensor_steup_sampling_rate); Button btnSetSamplingRate = (Button) mView.findViewById(R.id.button_sensor_setup_set_parameter); btnSetSamplingRate.setVisibility(View.VISIBLE); TextView tvSamplingRate = (TextView) mView.findViewById(R.id.textview_sensor_setup_sampling_rate); if (((AndroidSensor) sensor).isStreamingSensor()) { etSamplingRate.setText(String.valueOf(1000000. / ((AndroidSensor) sensor).getSamplingInterval())); etSamplingRate.setEnabled(true); tvSamplingRate.setEnabled(true); etSamplingRate.setVisibility(View.VISIBLE); tvSamplingRate.setVisibility(View.VISIBLE); btnSetSamplingRate.setVisibility(View.VISIBLE); Log.d("SensorDataCollector", "Streaming sensor."); } else { etSamplingRate.setText(getActivity().getResources().getString(R.string.text_not_applicable)); etSamplingRate.setEnabled(false); tvSamplingRate.setEnabled(false); etSamplingRate.setVisibility(View.GONE); tvSamplingRate.setVisibility(View.GONE); btnSetSamplingRate.setVisibility(View.GONE); Log.d("SensorDataCollector", "Non-streaming (onchange) sensor."); } } private void updateAudioSensorSetupView() { Button btnSetSamplingRate = (Button) mView.findViewById(R.id.button_sensor_setup_set_parameter); btnSetSamplingRate.setVisibility(View.GONE); TextView tv = (TextView) mView.findViewById(R.id.textview_sensor_setup_sensor_name); tv.setText(mSensor.getName()); mListView = (ListView) mView.findViewById(R.id.listview_audio_sensor_setup); UserInterfaceUtils.fillSensorProperties(getActivity(), mListView, mSensor); mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> listView, View view, int position, long id) { SensorProperty property = (SensorProperty) listView.getItemAtPosition(position); if (property.getName().equals(getActivity().getResources().getString(R.string.text_audio_source))) { showAudioSensorDialog(mAudioRecordParameters, ((AudioSensor) mSensor).getAudioRecordParameter(), AudioSensorSetupDialogFragment.SELECT_SOURCE); } else if (property.getName() .equals(getActivity().getResources().getString(R.string.text_audio_channel_in))) { showAudioSensorDialog(mAudioRecordParameters, ((AudioSensor) mSensor).getAudioRecordParameter(), AudioSensorSetupDialogFragment.SELECT_CHANNEL_IN); } else if (property.getName() .equals(getActivity().getResources().getString(R.string.text_audio_encoding))) { showAudioSensorDialog(mAudioRecordParameters, ((AudioSensor) mSensor).getAudioRecordParameter(), AudioSensorSetupDialogFragment.SELECT_ENCODING); } else if (property.getName() .equals(getActivity().getResources().getString(R.string.text_audio_sampling_rate))) { showAudioSensorDialog(mAudioRecordParameters, ((AudioSensor) mSensor).getAudioRecordParameter(), AudioSensorSetupDialogFragment.SELECT_SAMPLING_RATE); } else if (property.getName() .equals(getActivity().getResources().getString(R.string.text_audio_min_buffer_size))) { showAudioSensorDialog(mAudioRecordParameters, ((AudioSensor) mSensor).getAudioRecordParameter(), AudioSensorSetupDialogFragment.SELECT_MIN_BUFFER_SIZE); } } }); } private void showAudioSensorDialog(List<AudioRecordParameter> allParams, AudioRecordParameter param, int operation) { DialogFragment newFragment = AudioSensorSetupDialogFragment.newInstance(getActivity(), allParams, param, mListView, operation); final FragmentManager fm = getActivity().getSupportFragmentManager(); newFragment.show(fm, "dialog"); } }