@Override public View onCreateView( LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment final View view = inflater.inflate(R.layout.fragment_chart_tab, container, false); btnPrevious = (ImageButton) view.findViewById(R.id.btnPrevious); btnPrevious.setOnClickListener( new View.OnClickListener() { @Override public void onClick(View v) { convertExecutor.execute( new Runnable() { @Override public void run() { if (currentGraph <= 1) { return; } currentGraph--; ChartCollection collection = fromDevice ? fileManager.getCollection() : fileManager.getPcaCollection(); final Map<Double, Double> mapData = collection.getCharData(currentGraph - 1).getData(); // final double[] data = new // double[mapData.values().size()]; // // for (int i = 0; i < mapData.values().size(); i++) { // data[i] = mapData.get(i); // } mainHandler.post( new Runnable() { @Override public void run() { drawGraph(mapData); txtCurrent.setText(String.valueOf(currentGraph)); } }); } }); } }); btnNext = (ImageButton) view.findViewById(R.id.btnNext); btnNext.setOnClickListener( new View.OnClickListener() { @Override public void onClick(View v) { convertExecutor.execute( new Runnable() { @Override public void run() { if (currentGraph >= totalGraphs) { return; } currentGraph++; ChartCollection collection = fromDevice ? fileManager.getCollection() : fileManager.getPcaCollection(); final Map<Double, Double> mapData = collection.getCharData(currentGraph - 1).getData(); // final double[] data = new // double[mapData.values().size()]; // // for (int i = 0; i < mapData.values().size(); i++) { // data[i] = mapData.get(i); // } mainHandler.post( new Runnable() { @Override public void run() { drawGraph(mapData); txtCurrent.setText(String.valueOf(currentGraph)); } }); } }); } }); txtCurrent = (TextView) view.findViewById(R.id.txtCurrentGraph); txtTotal = (TextView) view.findViewById(R.id.txtTotalGraph); chart = (LineChart) view.findViewById(R.id.chart); chart.setNoDataText("Aguardando dados..."); chart.setScaleYEnabled(false); chart.setPinchZoom(true); if (fromDevice) { YAxis leftAxis = chart.getAxisLeft(); leftAxis.setAxisMinValue(0); leftAxis.setAxisMaxValue(100); } YAxis rightAxis = chart.getAxisRight(); rightAxis.setEnabled(false); XAxis xAxis = chart.getXAxis(); xAxis.setPosition(XAxis.XAxisPosition.BOTTOM); loadData(true); return view; }