Java tutorial
/* * Copyright (C) 2014 TU Darmstadt, Hessen, Germany. * Department of Computer Science Databases and Distributed Systems * * This program 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. * * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.ess.tudarmstadt.de.sleepsense.mgraph; import java.text.DecimalFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import android.content.Intent; import android.graphics.Paint.Align; 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.View.OnClickListener; import android.view.ViewGroup; import android.widget.Button; import android.widget.LinearLayout; import android.widget.TextView; import com.ess.tudarmstadt.de.sleepsense.R; import com.ess.tudarmstadt.de.sleepsense.database.CookTraffic; import com.ess.tudarmstadt.de.sleepsense.database.LocalTransformationDBMS; import com.ess.tudarmstadt.de.sleepsense.database.TrafficData; import com.ess.tudarmstadt.de.sleepsense.systemmonitor.SensorsMeterService; import com.jjoe64.graphview.BarGraphView; import com.jjoe64.graphview.CustomLabelFormatter; import com.jjoe64.graphview.GraphView; import com.jjoe64.graphview.GraphView.GraphViewData; import com.jjoe64.graphview.GraphViewSeries; import com.jjoe64.graphview.LineGraphView; /** * Create a graph of light, motion, noise and sleep estimated from sensors * @author HieuHa * */ public class GraphPlotFragment extends Fragment { private static final String TAG = GraphPlotFragment.class.getSimpleName(); private View rootView; private ArrayList<String> avalDate; // private ArrayList<GraphViewData> data_line; // private ArrayList<GraphViewData> data_bar; public static String lightGrpTitle = "Light Var per min"; private int lightGrpType = SensorsMeterService.lightId; private boolean lightIsBar = false; public static String motionGrpTitle = "Motion Var per min"; private int motionGrpType = SensorsMeterService.accId; private boolean motionIsBar = false; private static String sleepGrpTitle = "Sleep Pattern"; private int sleepGrpType = SensorsMeterService.sleepId; private boolean sleepIsBar = false; private static String noiseGrpTitle = "Noise Var per min"; private int noiseGrpType = SensorsMeterService.soundId; private boolean noiseIsBar = false; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { rootView = inflater.inflate(R.layout.fragment_with_graph, container, false); Log.e(TAG, ": onCreateView"); return rootView; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); setHasOptionsMenu(true); Button cookBtn = (Button) rootView.findViewById(R.id.cook_up); cookBtn.setVisibility(View.GONE); cookBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { CookTraffic mCook = new CookTraffic(getActivity().getApplicationContext()); mCook.cookUp(); } }); Button refrBtn = (Button) rootView.findViewById(R.id.refresh_btn); refrBtn.setVisibility(View.GONE); refrBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { redrawCharts(getCurrentDate()); } }); Button clearDB = (Button) rootView.findViewById(R.id.clear_all); clearDB.setVisibility(View.GONE); clearDB.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // clearAllCharts(); // clearDb(); } }); // data_line = new ArrayList<GraphViewData>(); // data_bar = new ArrayList<GraphViewData>(); TextView atDate = (TextView) rootView.findViewById(R.id.at_date); atDate.setText(getCurrentDate()); Button backBtn = (Button) rootView.findViewById(R.id.date_back); backBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { dateBackAndForth(true); } }); Button forthBtn = (Button) rootView.findViewById(R.id.date_next); forthBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { dateBackAndForth(false); } }); redrawCharts(getDate(-2, getCurrentDate())); LinearLayout layout_light = (LinearLayout) rootView.findViewById(R.id.light_graph); LinearLayout layout_motion = (LinearLayout) rootView.findViewById(R.id.motion_graph); layout_light.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // openBig(); } }); layout_motion.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // openBig(); } }); } /** Open this on Landscape mode **/ private void openBig() { Intent i = new Intent(this.getActivity().getApplicationContext(), GraphPlotBigActivity.class); String date = ((TextView) rootView.findViewById(R.id.at_date)).getText().toString(); i.putExtra("Timy", date); i.putExtra("lineGraphTitle", lightGrpTitle); i.putExtra("lineGraphType", lightGrpType); i.putExtra("isFirstBarType", lightIsBar); i.putExtra("barGraphTitle", motionGrpTitle); i.putExtra("barGraphType", motionGrpType); i.putExtra("isSecondBarType", motionIsBar); this.getActivity().startActivity(i); } @Override public void onResume() { super.onResume(); } @Override public void onPause() { super.onPause(); } // change date when user press back or forth button private void dateBackAndForth(boolean back) { TextView atDate = (TextView) rootView.findViewById(R.id.at_date); String newDate = atDate.getText().toString(); if (back) { newDate = getDate(-1, atDate.getText().toString()); } else { newDate = getDate(1, atDate.getText().toString()); } redrawCharts(newDate); atDate.setText(newDate); } private void clearAllCharts() { // clearChart(firstGrpTitle); // clearChart(secondGrpTitle); } // private void clearChart(String title) { // GraphViewData[] dataList = new GraphViewData[1]; // dataList[0] = new GraphViewData(0.0, 0.0); // GraphViewSeries gvs_series = new GraphViewSeries(dataList); // // if (title.equals(firstGrpTitle)) { // createGraph(firstGrpTitle, gvs_series, R.id.light_graph, firstIsBar); // data_line = new ArrayList<GraphView.GraphViewData>(); // } // if (title.equals(secondGrpTitle)) { // createGraph(secondGrpTitle, gvs_series, R.id.motion_graph, secondIsBar); // data_bar = new ArrayList<GraphView.GraphViewData>(); // } // } // private void redrawCharts(String newDate) { TextView atDate = (TextView) rootView.findViewById(R.id.at_date); atDate.setText(newDate); // update data according to date from database ArrayList<GraphViewData> light_data = updateTrafficOnDate(newDate, lightGrpType); ArrayList<GraphViewData> motion_data = updateTrafficOnDate(newDate, motionGrpType); ArrayList<GraphViewData> noise_data = updateTrafficOnDate(newDate, noiseGrpType); ArrayList<GraphViewData> sleep_data = updateTrafficOnDate(newDate, sleepGrpType); // populate missing data if the lengths are not the same if (light_data.size() < sleep_data.size()) { for (int i = sleep_data.size() - light_data.size(); i < sleep_data.size(); i++) { light_data.add(new GraphViewData(sleep_data.get(i).getX(), 0)); } } if (motion_data.size() < sleep_data.size()) { for (int i = sleep_data.size() - motion_data.size(); i < sleep_data.size(); i++) { motion_data.add(new GraphViewData(sleep_data.get(i).getX(), 0)); } } drawChart(light_data, lightGrpTitle, R.id.light_graph, lightIsBar); drawChart(motion_data, motionGrpTitle, R.id.motion_graph, motionIsBar); drawChart(noise_data, noiseGrpTitle, R.id.noise_graph, noiseIsBar); drawChart(sleep_data, sleepGrpTitle, R.id.sleep_pattern, sleepIsBar); } private LocalTransformationDBMS transformationDB; private ArrayList<GraphView.GraphViewData> updateTrafficOnDate(String date, int type) { String nextDay = getDate(1, date); // initialize database this.transformationDB = new LocalTransformationDBMS(getActivity().getApplicationContext()); transformationDB.open(); ArrayList<TrafficData> list = transformationDB.getTrafficsBetweenDate(date, nextDay, type); ArrayList<GraphView.GraphViewData> data = new ArrayList<GraphView.GraphViewData>(); for (TrafficData t : list) { // for the time range from 19.59 to 23.59 add 100 to double data // and for the time range from 0.00 to 10.59 add 200 to double data, // by that we make sure the time line begin at 19.59 and end at // 10.59 of the next day FIXME: it could be nicer to convert to system time in milli double x_axis = t.getxValue(); if (t.getxValue() < 11.0) x_axis += 200; else if (t.getxValue() >= 19.59) x_axis += 100; GraphViewData x = new GraphViewData(x_axis, t.getyValue()); data.add(x); } transformationDB.close(); return data; } private void clearDb() { // clear DBs of a today date // initialize database this.transformationDB = new LocalTransformationDBMS(getActivity().getApplicationContext()); transformationDB.open(); transformationDB.deleteAllTrafficRecords(); transformationDB.close(); } private void drawChart(ArrayList<GraphViewData> data_line, String title, int graphR_id, boolean isBar) { if (data_line.size() > 0) { GraphViewData[] dataList = new GraphViewData[data_line.size()]; for (int i = 0; i < data_line.size(); i++) { dataList[i] = data_line.get(i); } GraphViewSeries gvs_series = new GraphViewSeries(dataList); createGraph(title, gvs_series, graphR_id, isBar); } else { // clear Chart GraphViewData[] dataList = new GraphViewData[1]; dataList[0] = new GraphViewData(0.0, 0.0); GraphViewSeries gvs_series = new GraphViewSeries(dataList); createGraph(title, gvs_series, graphR_id, isBar); } } private void createGraph(String graphTitle, GraphViewSeries series, final int Rid, boolean isBarChart) { GraphView graphView = null; if (isBarChart) { graphView = new BarGraphView(getActivity().getApplicationContext(), graphTitle); // graphView.setVerticalLabels(new String[] { "high", "mid", "low" // }); // graphView.setManualYAxisBounds(11.0d, 9.0d); } else graphView = new LineGraphView(getActivity().getApplicationContext(), graphTitle); graphView.setCustomLabelFormatter(new CustomLabelFormatter() { @Override public String formatLabel(double axis_value, boolean isValueX) { if (isValueX) { // X-Axis // decompose x_axis from adding up before double value = axis_value; if (axis_value >= 200) { value = axis_value - 200; } else if (axis_value > 0) value = axis_value - 100; // make sure not have smth like 4:60 or 11:83 time frame! double whole = value; double fractionalPart = value % 1; double integralPart = value - fractionalPart; if (fractionalPart >= 0.60) { whole = integralPart + 1.0d + (fractionalPart - 0.60); } // convert (double) hour.mm to hour:mm return new DecimalFormat("00.00").format(whole).replaceAll("\\,", ":"); } else { // Y-Axis return new DecimalFormat("#0.00").format(axis_value); } } }); // add data graphView.addSeries(series); graphView.setScrollable(false); // optional - activate scaling / zooming // graphView.setScalable(true); // optional - legend // graphView.setShowLegend(true); if (Rid == R.id.sleep_pattern) { graphView.setManualYAxisBounds(1.0d, 0.0d); } graphView.getGraphViewStyle().setNumVerticalLabels(4); graphView.getGraphViewStyle().setNumHorizontalLabels(0); // AUTO graphView.getGraphViewStyle().setTextSize(17f); graphView.getGraphViewStyle().setVerticalLabelsAlign(Align.CENTER); graphView.getGraphViewStyle().setVerticalLabelsWidth(80); LinearLayout layout = (LinearLayout) rootView.findViewById(Rid); layout.removeAllViews(); layout.addView(graphView); rootView.postInvalidate(); } /** * * @param i * 0, 1 or -1 * @return current, next or prev date */ private String getDate(int i, String currentDate) { avalDate = new ArrayList<String>(); this.transformationDB = new LocalTransformationDBMS(getActivity().getApplicationContext()); transformationDB.open(); avalDate = transformationDB.getAllAvalDate(); transformationDB.close(); if (avalDate.isEmpty()) { Log.e(TAG, "no data available!!"); avalDate.add(getCurrentDate()); } int x = avalDate.indexOf(currentDate); if (i == -2) { Calendar c = Calendar.getInstance(); int hour_of_day = c.get(Calendar.HOUR_OF_DAY); if (hour_of_day < 20 && avalDate.size() >= 2) return avalDate.get(avalDate.size() - 2); return avalDate.get(avalDate.size() - 1); // last date (special // case) } if (x >= 0) { if (i == 1 && x < avalDate.size() - 1) return avalDate.get(x + i); if (i == -1 && x > 0) return avalDate.get(x + i); } else { if (i == -1) { return avalDate.get(avalDate.size() - 1); // last date } if (i == -1) { return avalDate.get(0); // last date } } return currentDate; } private static String getCurrentDate() { SimpleDateFormat sdfDate = new SimpleDateFormat("dd-MM-yyyy"); Date now = new Date(); String strDate = sdfDate.format(now); return strDate; } @Override public void onStop() { super.onStop(); } }