Java tutorial
/** * Global Sensor Networks (GSN) Source Code * Copyright (c) 2006-2014, Ecole Polytechnique Federale de Lausanne (EPFL) * * This file is part of GSN. * * GSN is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * GSN 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GSN. If not, see <http://www.gnu.org/licenses/>. * * File: gsn-tiny/src/tinygsn/gui/android/ActivityViewData.java * * @author Do Ngoc Hoan */ package tinygsn.gui.android; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; import tinygsn.beans.StreamElement; import tinygsn.controller.AndroidControllerViewData; import tinygsn.gui.android.chart.AbstractDemoChart; import tinygsn.gui.android.chart.SensorValuesChart; import android.annotation.SuppressLint; import android.app.AlertDialog; import android.app.DatePickerDialog; import android.app.TimePickerDialog; import android.content.Context; import android.content.Intent; import android.graphics.Color; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.support.v4.app.DialogFragment; import android.support.v4.app.FragmentTransaction; import android.text.Editable; import android.text.InputType; import android.text.TextWatcher; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.AdapterView.OnItemSelectedListener; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.DatePicker; import android.widget.EditText; import android.widget.Spinner; import android.widget.TableLayout; import android.widget.TableLayout.LayoutParams; import android.widget.TableRow; import android.widget.TextView; import android.widget.TimePicker; import android.widget.Toast; import com.actionbarsherlock.app.SherlockDialogFragment; import com.actionbarsherlock.app.SherlockFragmentActivity; @SuppressLint({ "HandlerLeak", "SimpleDateFormat" }) public class ActivityViewData extends SherlockFragmentActivity { static int TEXT_SIZE = 10; private Context context = this; // private Button btnLoad = null; private AndroidControllerViewData controller; private Handler handlerData, handlerVS, handlerField; private TextView lblOutput = null; // private EditText numLatestTxt = null; private Spinner spinnerVS, spinnerField, spinnerViewMode; private TableLayout table_view_mode = null; private ArrayList<StreamElement> streamElements = null; private ArrayList<String> vsNameList = null; private ArrayList<String> fieldList = null; private int numLatest = 10; private String vsName = null; protected int viewMode = 1; protected String fieldName; private TextView txtStartDate, txtStartTime, txtEndDate, txtEndTime; private Calendar dateAndTime = Calendar.getInstance(); private Date startTime, endTime; private static final String TAG = "ActivityViewData"; @SuppressLint("HandlerLeak") @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_view_data); lblOutput = (TextView) findViewById(R.id.txbViewData); lblOutput.setTextSize(TEXT_SIZE); // numLatestTxt = (EditText) findViewById(R.id.numLatestTxt); addHandlers(); // btnLoad = (Button) findViewById(R.id.btnLoad); // btnLoad.setOnClickListener(new View.OnClickListener() { // public void onClick(View v) { // // latestLbl.setText(numLatest + " latest values"); // controller.loadData(numLatest); // } // }); // controller.startLoadVSList(); controller.loadListVS(); // addTableViewModeLatest(); loadViewMode(); } private void addTableViewModeLatest() { table_view_mode = (TableLayout) findViewById(R.id.table_view_mode); // table_view_mode.setLayoutParams(new // TableLayout.LayoutParams(LayoutParams.FILL_PARENT, // LayoutParams.WRAP_CONTENT)); table_view_mode.removeAllViews(); TableRow row = new TableRow(this); TextView txt = new TextView(this); txt.setText(" View "); txt.setTextColor(Color.parseColor("#000000")); row.addView(txt); final EditText editText_numLatest = new EditText(this); editText_numLatest.setText("10"); editText_numLatest.setInputType(InputType.TYPE_CLASS_NUMBER); editText_numLatest.requestFocus(); editText_numLatest.setTextColor(Color.parseColor("#000000")); row.addView(editText_numLatest); editText_numLatest.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void afterTextChanged(Editable s) { try { numLatest = Integer.parseInt(editText_numLatest.getText().toString()); loadLatestData(); } catch (NumberFormatException e) { AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(context); alertDialogBuilder.setTitle("Please input a number!"); } } }); txt = new TextView(this); txt.setText(" latest values"); txt.setTextColor(Color.parseColor("#000000")); row.addView(txt); txt = new TextView(this); txt.setText(" "); row.addView(txt); table_view_mode.addView(row); row = new TableRow(this); Button detailBtn = new Button(this); // plotDataBtn.setTextSize(TEXT_SIZE); detailBtn.setText("Detail"); detailBtn.setTextColor(Color.parseColor("#000000")); detailBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // Toast.makeText(context, "detailBtn is clicked", // Toast.LENGTH_SHORT).show(); showDialogDetail(); } }); Button plotDataBtn = new Button(this); // plotDataBtn.setTextSize(TEXT_SIZE); plotDataBtn.setText("Plot data"); plotDataBtn.setTextColor(Color.parseColor("#000000")); plotDataBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { viewChart(); } }); TableRow.LayoutParams params = new TableRow.LayoutParams(); // params.addRule(TableRow.LayoutParams.FILL_PARENT); params.span = 2; row.addView(detailBtn, params); row.addView(plotDataBtn, params); row.setLayoutParams(new TableLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT)); table_view_mode.addView(row); } protected void loadData() { if (viewMode == 1) loadLatestData(); else loadCustomizedRange(); } private void loadLatestData() { if (vsName == null) return; //TODO check for calling and caller of this method controller.loadData(numLatest, vsName); } private void loadCustomizedRange() { Log.v(TAG, startTime.getTime() + " " + endTime.getTime()); controller.loadRangeData(vsName, startTime.getTime(), endTime.getTime()); } private void addTableViewModeCustomize() { table_view_mode = (TableLayout) findViewById(R.id.table_view_mode); table_view_mode.removeAllViews(); // Row From TableRow row = new TableRow(this); TextView txt = new TextView(this); txt.setText("From: "); txt.setTextColor(Color.parseColor("#000000")); row.addView(txt); // Date time = new Date(); startTime = new Date(); startTime.setMinutes(startTime.getMinutes() - 1); endTime = new Date(); // Start Time SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss"); txtStartTime = new TextView(this); txtStartTime.setText(formatter.format(startTime) + ""); txtStartTime.setTextColor(Color.parseColor("#000000")); txtStartTime.setBackgroundColor(Color.parseColor("#61a7db")); row.addView(txtStartTime); txtStartTime.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { new TimePickerDialog(context, startTimeSetListener, dateAndTime.get(Calendar.HOUR_OF_DAY) - 1, dateAndTime.get(Calendar.MINUTE), true).show(); } }); // Add space txt = new TextView(this); txt.setText(" "); row.addView(txt); // Start Date formatter = new SimpleDateFormat("dd/MM/yyyy"); // txtStartDate, txtStartTime txtStartDate = new TextView(this); txtStartDate.setText(formatter.format(startTime) + ""); txtStartDate.setTextColor(Color.parseColor("#000000")); txtStartDate.setBackgroundColor(Color.parseColor("#61a7db")); row.addView(txtStartDate); txtStartDate.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { new DatePickerDialog(context, startDateSetListener, dateAndTime.get(Calendar.YEAR), dateAndTime.get(Calendar.MONTH), dateAndTime.get(Calendar.DAY_OF_MONTH)).show(); } }); table_view_mode.addView(row); // Add a space row row = new TableRow(this); txt = new TextView(this); txt.setText("-"); row.addView(txt); table_view_mode.addView(row); // Row To row = new TableRow(this); txt = new TextView(this); txt.setText("To"); txt.setTextColor(Color.parseColor("#000000")); row.addView(txt); // End Time formatter = new SimpleDateFormat("HH:mm:ss"); txtEndTime = new TextView(this); txtEndTime.setText(formatter.format(endTime) + ""); txtEndTime.setTextColor(Color.parseColor("#000000")); txtEndTime.setBackgroundColor(Color.parseColor("#61a7db")); row.addView(txtEndTime); txtEndTime.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { new TimePickerDialog(context, endTimeSetListener, dateAndTime.get(Calendar.HOUR_OF_DAY), dateAndTime.get(Calendar.MINUTE), true).show(); } }); // Add space txt = new TextView(this); txt.setText(" "); row.addView(txt); // End Date formatter = new SimpleDateFormat("dd/MM/yyyy"); // txtStartDate, txtStartTime txtEndDate = new TextView(this); txtEndDate.setText(formatter.format(endTime) + ""); txtEndDate.setTextColor(Color.parseColor("#000000")); txtEndDate.setBackgroundColor(Color.parseColor("#61a7db")); row.addView(txtEndDate); txtEndDate.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { new DatePickerDialog(context, endDateSetListener, dateAndTime.get(Calendar.YEAR), dateAndTime.get(Calendar.MONTH), dateAndTime.get(Calendar.DAY_OF_MONTH)).show(); } }); table_view_mode.addView(row); // Row row = new TableRow(this); Button detailBtn = new Button(this); detailBtn.setTextSize(TEXT_SIZE + 4); detailBtn.setText("Detail"); detailBtn.setTextColor(Color.parseColor("#000000")); detailBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { } }); Button plotDataBtn = new Button(this); plotDataBtn.setTextSize(TEXT_SIZE + 4); plotDataBtn.setText("Plot data"); plotDataBtn.setTextColor(Color.parseColor("#000000")); plotDataBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { viewChart(); } }); TableRow.LayoutParams params = new TableRow.LayoutParams(); // params.addRule(TableRow.LayoutParams.FILL_PARENT); params.span = 2; row.addView(detailBtn, params); row.addView(plotDataBtn, params); row.setLayoutParams(new TableLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT)); table_view_mode.addView(row); } DatePickerDialog.OnDateSetListener startDateSetListener = new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { startTime.setDate(dayOfMonth); startTime.setYear(year - 1900); startTime.setMonth(monthOfYear); updateStartLabel(); } }; TimePickerDialog.OnTimeSetListener startTimeSetListener = new TimePickerDialog.OnTimeSetListener() { public void onTimeSet(TimePicker view, int hourOfDay, int minute) { startTime.setHours(hourOfDay); startTime.setMinutes(minute); updateStartLabel(); } }; DatePickerDialog.OnDateSetListener endDateSetListener = new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { endTime.setDate(dayOfMonth); endTime.setYear(year - 1900); endTime.setMonth(monthOfYear); updateEndLabel(); } }; TimePickerDialog.OnTimeSetListener endTimeSetListener = new TimePickerDialog.OnTimeSetListener() { public void onTimeSet(TimePicker view, int hourOfDay, int minute) { endTime.setHours(hourOfDay); endTime.setMinutes(minute); updateEndLabel(); } }; protected void updateEndLabel() { SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss"); txtEndTime.setText(formatter.format(endTime) + ""); formatter = new SimpleDateFormat("dd/MM/yyyy"); txtEndDate.setText(formatter.format(endTime) + ""); // txtEndDate.setText(endTime.getTime() + ""); loadCustomizedRange(); } protected void updateStartLabel() { SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss"); txtStartTime.setText(formatter.format(startTime) + ""); formatter = new SimpleDateFormat("dd/MM/yyyy"); txtStartDate.setText(formatter.format(startTime) + ""); // txtStartDate.setText(startTime.getTime() + ""); loadCustomizedRange(); } private void addHandlers() { controller = new AndroidControllerViewData(this); handlerVS = new Handler() { @SuppressWarnings("unchecked") @Override public void handleMessage(Message msg) { vsNameList = (ArrayList<String>) msg.obj; loadVSList(); } }; controller.setHandlerVS(handlerVS); handlerField = new Handler() { @SuppressWarnings("unchecked") @Override public void handleMessage(Message msg) { fieldList = (ArrayList<String>) msg.obj; loadFieldList(); } }; controller.setHandlerField(handlerField); handlerData = new Handler() { @SuppressWarnings("unchecked") @Override public void handleMessage(Message msg) { streamElements = (ArrayList<StreamElement>) msg.obj; if (streamElements.size() == 0) lblOutput.setText("No data!"); else { outputData(); } } }; controller.setHandlerData(handlerData); } public void loadVSList() { spinnerVS = (Spinner) findViewById(R.id.spinner_vs); List<String> list = new ArrayList<String>(); for (String s : vsNameList) { list.add(s); } ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, R.layout.spinner_item, list); dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinnerVS.setAdapter(dataAdapter); spinnerVS.setOnItemSelectedListener(new OnItemSelectedListener() { public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) { vsName = parent.getItemAtPosition(pos).toString(); Toast.makeText(parent.getContext(), "The virtual sensor \"" + vsName + "\" is selected.", Toast.LENGTH_SHORT).show(); controller.loadListFields(parent.getItemAtPosition(pos).toString()); } @Override public void onNothingSelected(AdapterView<?> arg0) { Toast.makeText(context, "Please select a virtual sensor", Toast.LENGTH_SHORT).show(); } }); } protected void loadFieldList() { spinnerField = (Spinner) findViewById(R.id.spinner_field); List<String> list = new ArrayList<String>(); for (String s : fieldList) { list.add(s); } ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, R.layout.spinner_item, list); dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinnerField.setAdapter(dataAdapter); spinnerField.setOnItemSelectedListener(new OnItemSelectedListener() { public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) { fieldName = parent.getItemAtPosition(pos).toString(); Toast.makeText(parent.getContext(), "The field \"" + fieldName + "\" is selected.", Toast.LENGTH_SHORT).show(); loadData(); } @Override public void onNothingSelected(AdapterView<?> arg0) { Toast.makeText(context, "Please select a field", Toast.LENGTH_SHORT).show(); } }); } protected void loadViewMode() { spinnerViewMode = (Spinner) findViewById(R.id.spinner_view_mode); List<String> list = new ArrayList<String>(); list.add("Latest values"); list.add("Customize time"); ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, R.layout.spinner_item, list); dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinnerViewMode.setAdapter(dataAdapter); spinnerViewMode.setOnItemSelectedListener(new OnItemSelectedListener() { public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) { // Toast.makeText( // parent.getContext(), // "The view mode \"" + parent.getItemAtPosition(pos).toString() // + "\" is selected.", Toast.LENGTH_SHORT).show(); if (pos == 0) { addTableViewModeLatest(); viewMode = 1; loadData(); } else { addTableViewModeCustomize(); viewMode = 2; loadData(); } } @Override public void onNothingSelected(AdapterView<?> arg0) { } }); } public void viewChart() { if (streamElements == null) return; if (streamElements.size() == 0) return; ArrayList<Double> data = new ArrayList<Double>(); for (int i = 0; i < streamElements.size(); i++) { data.add((Double) streamElements.get(i).getData(fieldName)); // Log.v(TAG, (Double) streamElements.get(i).getData(fieldName) + ""); } // Log.v(TAG, data.size() + ""); Intent intent = null; AbstractDemoChart chart = new SensorValuesChart(vsName, fieldName, data); intent = chart.execute(this); startActivity(intent); } // public void viewChart(View v) { // if (streamElements == null) // return; // if (streamElements.size() == 0) // return; // // Intent intent = null; // AbstractDemoChart chart = new SensorValuesChart(streamElements); // intent = chart.execute(this); // startActivity(intent); // } public void customizeStartEnd(View v) { Intent intent = new Intent(this, ActivityDateTimePicker.class); startActivity(intent); } private void outputData() { String out = getDataOutput(); lblOutput.setText(out); // FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); // DialogFragment newFragment = DetailedDataFragment.newInstance(out); // // ft.add(R.id.embedded, newFragment); // // ft.commit(); } private String getDataOutput() { if (streamElements == null) return ""; String out = streamElements.size() + " stream data are loaded:\n"; for (int i = 0; i < streamElements.size(); i++) { out += streamElements.get(i).toString() + "\n"; } return out; } private void showDialogDetail() { String out = getDataOutput(); DialogFragment newFragment = DetailedDataFragment.newInstance(out); newFragment.show(getSupportFragmentManager(), "dialog"); } public static class DetailedDataFragment extends SherlockDialogFragment { String text; public static DetailedDataFragment newInstance(String text) { return new DetailedDataFragment(text); } public DetailedDataFragment(String text) { this.text = text; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View v = inflater.inflate(R.layout.text, container, false); View tv = v.findViewById(R.id.text); ((TextView) tv).setText(text); return v; } } }