Java tutorial
/* HitoeProfileDeviceOrientationFragment Copyright (c) 2016 NTT DOCOMO,INC. Released under the MIT license http://opensource.org/licenses/mit-license.php */ package org.deviceconnect.android.deviceplugin.hitoe.fragment; import android.graphics.Color; import android.graphics.Paint; import android.os.Bundle; import android.support.annotation.Nullable; 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.LinearLayout; import android.widget.TextView; import org.achartengine.GraphicalView; import org.achartengine.chart.LineChart; import org.achartengine.chart.PointStyle; import org.achartengine.model.XYMultipleSeriesDataset; import org.achartengine.model.XYSeries; import org.achartengine.renderer.XYMultipleSeriesRenderer; import org.achartengine.renderer.XYSeriesRenderer; import org.deviceconnect.android.deviceplugin.hitoe.HitoeApplication; import org.deviceconnect.android.deviceplugin.hitoe.R; import org.deviceconnect.android.deviceplugin.hitoe.activity.HitoeDeviceControlActivity; import org.deviceconnect.android.deviceplugin.hitoe.data.AccelerationData; import org.deviceconnect.android.deviceplugin.hitoe.data.HitoeConstants; import org.deviceconnect.android.deviceplugin.hitoe.data.HitoeDevice; import org.deviceconnect.android.deviceplugin.hitoe.data.HitoeManager; import org.deviceconnect.android.deviceplugin.hitoe.util.HitoeScheduler; import java.util.ArrayList; import java.util.List; /** * This fragment do setting of the control DeviceOrientation profile. * * @author NTT DOCOMO, INC. */ public class HitoeProfileDeviceOrientationFragment extends Fragment implements HitoeScheduler.OnRegularNotify { /** Title size. */ public static final int CHART_TITLE_SIZE = 25; /** Label size. */ public static final int LABELS_SIZE = 16; /** Axis Title. */ public static final int AXIS_TITLE_SIZE = 25; /** Axis color. */ public static final int AXIS_COLOR = Color.GRAY; /** Grid color. */ public static final int GRID_COLOR = Color.GRAY; /** Title color. */ public static final int TITLE_COLOR = Color.GRAY; /** x label color. */ public static final int XLABEL_COLOR = Color.GRAY; /** y label color. */ public static final int YLABEL_COLOR = Color.GRAY; /** data count. */ private static final int DATA_COUNT = 3; /** orientation title. */ private static final String[] TITLES = new String[] { "X", "Y", "Z" }; /** data color. */ private static final int[] COLORS = new int[] { Color.RED, Color.GREEN, Color.BLUE }; /** data count. */ private static final long MAX_RANGE = 5000; /** Acc data. */ private List<XYSeries> mACCList = null; /** Graph data . */ private LineChart mLineChart; /** Graph view. */ private GraphicalView mGraphicalView; /** Graph render. */ private XYMultipleSeriesRenderer mXYMultipleSeriesRenderer; /** min data. */ private long mMinX = 0; /** max data. */ private long mMaxX = mMinX + MAX_RANGE; /** * Current Hitoe Device object. */ private HitoeDevice mCurrentDevice; /** * Hitoe's Scheduler. */ private HitoeScheduler mScheduler; @Override public View onCreateView(final LayoutInflater inflater, final @Nullable ViewGroup container, final @Nullable Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_orientation_instructions, null); mScheduler = new HitoeScheduler(this, HitoeConstants.ACC_CHART_UPDATE_CYCLE_TIME, HitoeConstants.ACC_CHART_UPDATE_CYCLE_TIME); rootView.findViewById(R.id.button_register).setOnClickListener(new View.OnClickListener() { @Override public void onClick(final View view) { clear(); mScheduler.scanHitoeDevice(true); } }); rootView.findViewById(R.id.button_unregister).setOnClickListener(new View.OnClickListener() { @Override public void onClick(final View view) { mScheduler.scanHitoeDevice(false); } }); TextView title = (TextView) rootView.findViewById(R.id.view_title); Bundle args = getArguments(); if (args != null) { String serviceId = args.getString(HitoeDeviceControlActivity.FEATURE_SERVICE_ID); HitoeApplication app = (HitoeApplication) getActivity().getApplication(); HitoeManager manager = app.getHitoeManager(); mCurrentDevice = manager.getHitoeDeviceForServiceId(serviceId); if (mCurrentDevice != null) { String[] profiles = getResources().getStringArray(R.array.support_profiles); title.setText(profiles[2] + getString(R.string.title_control)); } } init(); ((LinearLayout) rootView.findViewById(R.id.acc_chart)).addView(mGraphicalView); return rootView; } @Override public void onDestroy() { super.onDestroy(); mScheduler.scanHitoeDevice(false); } @Override public void onRegularNotify() { if (getActivity() == null) { return; } getActivity().runOnUiThread(new Runnable() { @Override public void run() { HitoeApplication app = (HitoeApplication) getActivity().getApplication(); HitoeManager manager = app.getHitoeManager(); AccelerationData acc = manager.getAccelerationData(mCurrentDevice.getId()); if (acc != null) { double[] accs = new double[3]; accs[0] = acc.getAccelX(); accs[1] = acc.getAccelY(); accs[2] = acc.getAccelZ(); setACC(System.currentTimeMillis(), accs); updateChart(); } } }); } /** * Initialilze chart. */ private void init() { mACCList = new ArrayList<>(); mACCList.add(new XYSeries(TITLES[0])); mACCList.add(new XYSeries(TITLES[1])); mACCList.add(new XYSeries(TITLES[2])); XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset(); dataset.addAllSeries(mACCList); this.mXYMultipleSeriesRenderer = buildRenderer(); mLineChart = new LineChart(dataset, mXYMultipleSeriesRenderer); mGraphicalView = new GraphicalView(getActivity(), mLineChart); } /** * Set Acceleration data. * @param timestamp timestamp * @param accList acceleration data list */ private void setACC(final long timestamp, final double[] accList) { if (this.mACCList.get(0).getItemCount() == 0) { mMinX = timestamp; mMaxX = timestamp + MAX_RANGE; } if (timestamp > mMaxX || this.mACCList.get(0).getItemCount() > MAX_RANGE / 40) { this.mACCList.get(0).clear(); this.mACCList.get(1).clear(); this.mACCList.get(2).clear(); mMinX = timestamp; mMaxX = timestamp + MAX_RANGE; } this.mACCList.get(0).add(timestamp, accList[0]); this.mACCList.get(1).add(timestamp, accList[1]); this.mACCList.get(2).add(timestamp, accList[2]); } /** * Update chart. */ private void updateChart() { mXYMultipleSeriesRenderer.setXAxisMin(mMinX); mXYMultipleSeriesRenderer.setXAxisMax(mMaxX); mGraphicalView.repaint(); } /** * Clear chart. */ private void clear() { mACCList.get(0).clear(); mACCList.get(1).clear(); mACCList.get(2).clear(); mGraphicalView.repaint(); } /** * Build chart's renderer. * @return chart renderer */ private XYMultipleSeriesRenderer buildRenderer() { XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer(); for (int i = 0; i < DATA_COUNT; i++) { XYSeriesRenderer r = new XYSeriesRenderer(); r.setColor(COLORS[i]); r.setLineWidth(4f); r.setPointStyle(PointStyle.CIRCLE); r.setFillPoints(true); r.setPointStrokeWidth(1f); renderer.addSeriesRenderer(r); } renderer.setPointSize(1f); renderer.setChartTitle(""); renderer.setChartTitleTextSize(CHART_TITLE_SIZE); renderer.setXTitle("? [ms]"); renderer.setYTitle(" [G]"); renderer.setLabelsTextSize(LABELS_SIZE); renderer.setLabelsColor(TITLE_COLOR); renderer.setXLabelsAlign(Paint.Align.LEFT); renderer.setYLabelsAlign(Paint.Align.RIGHT); renderer.setXLabelsColor(XLABEL_COLOR); renderer.setYLabelsColor(0, YLABEL_COLOR); renderer.setAxisTitleTextSize(AXIS_TITLE_SIZE); renderer.setAxesColor(AXIS_COLOR); renderer.setXAxisMin(mMinX); renderer.setXAxisMax(mMaxX); renderer.setYAxisMin(-3.0); renderer.setYAxisMax(3.0); renderer.setShowGridX(true); renderer.setShowGridY(true); renderer.setGridColor(GRID_COLOR); renderer.setApplyBackgroundColor(true); renderer.setBackgroundColor(Color.WHITE); renderer.setMargins(new int[] { 16, 48, 16, 8 }); renderer.setMarginsColor(Color.argb(0, 255, 255, 255)); renderer.setPanEnabled(false, false); renderer.setShowLegend(true); renderer.setLegendTextSize(15); renderer.setFitLegend(false); renderer.setZoomButtonsVisible(false); renderer.setZoomEnabled(false, false); return renderer; } }