Java LineData类代码示例

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_linechart_noseekbar);

        mChart = (LineChart) findViewById(R.id.chart1);
        mChart.setOnChartValueSelectedListener(this);
        mChart.setDrawGridBackground(false);
        mChart.getDescription().setEnabled(false);

        // add an empty data object
        mChart.setData(new LineData());
//        mChart.getXAxis().setDrawLabels(false);
//        mChart.getXAxis().setDrawGridLines(false);

        mChart.invalidate();
    }
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
private LineDataSet prepareInitData(@NonNull LineChart chart, @NonNull List<Entry> entries) {
    final LineDataSet set = new LineDataSet(entries, "Accuracy");

    set.setMode(LineDataSet.Mode.HORIZONTAL_BEZIER);
    set.setAxisDependency(YAxis.AxisDependency.LEFT);
    set.setLineWidth(2F);
    set.setDrawCircleHole(false);
    set.setDrawCircles(false);
    set.setHighlightEnabled(false);
    set.setDrawFilled(true);

    final LineData group = new LineData(set);
    group.setDrawValues(false);

    chart.setData(group);

    return set;
}
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
protected LineData generateLineData() {
    
    ArrayList<ILineDataSet> sets = new ArrayList<ILineDataSet>();
    
    LineDataSet ds1 = new LineDataSet(FileUtils.loadEntriesFromAssets(getActivity().getAssets(), "sine.txt"), "Sine function");
    LineDataSet ds2 = new LineDataSet(FileUtils.loadEntriesFromAssets(getActivity().getAssets(), "cosine.txt"), "Cosine function");
    
    ds1.setLineWidth(2f);
    ds2.setLineWidth(2f);
    
    ds1.setDrawCircles(false);
    ds2.setDrawCircles(false);
    
    ds1.setColor(ColorTemplate.VORDIPLOM_COLORS[0]);
    ds2.setColor(ColorTemplate.VORDIPLOM_COLORS[1]);
    
    // load DataSets from textfiles in assets folders
    sets.add(ds1);
    sets.add(ds2);
    
    LineData d = new LineData(sets);
    d.setValueTypeface(tf);
    return d;
}
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
private LineData generateLineData() {

        LineData d = new LineData();

        ArrayList<Entry> entries = new ArrayList<Entry>();

        for (int index = 0; index < itemcount; index++)
            entries.add(new Entry(index + 0.5f, getRandom(15, 5)));

        LineDataSet set = new LineDataSet(entries, "Line DataSet");
        set.setColor(Color.rgb(240, 238, 70));
        set.setLineWidth(2.5f);
        set.setCircleColor(Color.rgb(240, 238, 70));
        set.setCircleRadius(5f);
        set.setFillColor(Color.rgb(240, 238, 70));
        set.setMode(LineDataSet.Mode.CUBIC_BEZIER);
        set.setDrawValues(true);
        set.setValueTextSize(10f);
        set.setValueTextColor(Color.rgb(240, 238, 70));

        set.setAxisDependency(YAxis.AxisDependency.LEFT);
        d.addDataSet(set);

        return d;
    }
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
private void removeLastEntry() {

        LineData data = mChart.getData();

        if (data != null) {

            ILineDataSet set = data.getDataSetByIndex(0);

            if (set != null) {

                Entry e = set.getEntryForXValue(set.getEntryCount() - 1, Float.NaN);

                data.removeEntry(e, 0);
                // or remove by index
                // mData.removeEntryByXValue(xIndex, dataSetIndex);
                data.notifyDataChanged();
                mChart.notifyDataSetChanged();
                mChart.invalidate();
            }
        }
    }
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_colored_lines);

    mCharts[0] = (LineChart) findViewById(R.id.chart1);
    mCharts[1] = (LineChart) findViewById(R.id.chart2);
    mCharts[2] = (LineChart) findViewById(R.id.chart3);
    mCharts[3] = (LineChart) findViewById(R.id.chart4);

    mTf = Typeface.createFromAsset(getAssets(), "OpenSans-Bold.ttf");

    for (int i = 0; i < mCharts.length; i++) {

        LineData data = getData(36, 100);
        data.setValueTypeface(mTf);

        // add some transparency to the color with "& 0x90FFFFFF"
        setupChart(mCharts[i], data, mColors[i % mColors.length]);
    }
}
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
private void setData() {

        RealmResults<RealmDemoData> result = mRealm.where(RealmDemoData.class).findAll();

        RealmLineDataSet<RealmDemoData> set = new RealmLineDataSet<RealmDemoData>(result, "xValue", "yValue");
        set.setMode(LineDataSet.Mode.CUBIC_BEZIER);
        set.setLabel("Realm LineDataSet");
        set.setDrawCircleHole(false);
        set.setColor(ColorTemplate.rgb("#FF5722"));
        set.setCircleColor(ColorTemplate.rgb("#FF5722"));
        set.setLineWidth(1.8f);
        set.setCircleRadius(3.6f);

        ArrayList<ILineDataSet> dataSets = new ArrayList<ILineDataSet>();
        dataSets.add(set); // add the dataset

        // create a data object with the dataset list
        LineData data = new LineData(dataSets);
        styleData(data);

        // set data
        mChart.setData(data);
        mChart.animateY(1400, Easing.EasingOption.EaseInOutQuart);
    }
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
private void setData(int count, float range) {

        ArrayList<Entry> entries = new ArrayList<Entry>();

        for (int i = 0; i < count; i++) {
            float xVal = (float) (Math.random() * range);
            float yVal = (float) (Math.random() * range);
            entries.add(new Entry(xVal, yVal));
        }

        // sort by x-value
        Collections.sort(entries, new EntryXComparator());

        // create a dataset and give it a type
        LineDataSet set1 = new LineDataSet(entries, "DataSet 1");

        set1.setLineWidth(1.5f);
        set1.setCircleRadius(4f);

        // create a data object with the datasets
        LineData data = new LineData(set1);

        // set data
        mChart.setData(data);
    }
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
private void bindActivityChart() {
    LineData lineData = generateActivityLineData();
    lineChart.setData(lineData);
    int maxYData = (int) (Math.ceil(lineData.getYMax()) + 7200);
    lineChart.getAxisLeft().setAxisMaximum(maxYData);
    long referenceTime = new DateTime(stats.endDate).minusDays(6).getMillis();

    lineChart.getXAxis()
            .setValueFormatter(new FormatUtils().getBarXAxisValueFormatterInstance(referenceTime));

    CustomMarkerView customMarkerView = new CustomMarkerView(context, R.layout.marker_view, referenceTime);
    lineChart.setMarker(customMarkerView);
    customMarkerView.setChartView(lineChart);

    lineChart.animateX(1500, Easing.EasingOption.Linear);
}
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
private LineData generateA1cData() {
    ArrayList<String> xVals = new ArrayList<>();
    ArrayList<Entry> yVals = new ArrayList<>();

    for (int i = 0; i < presenter.getA1cReadings().size(); i++) {
        float val = Float.parseFloat(presenter.getA1cReadings().get(i).toString());
        yVals.add(new Entry(val, i));
    }

    xVals.clear();
    for (int i = 0; i < presenter.getA1cReadingsDateTime().size(); i++) {
        String date = presenter.convertDate(presenter.getA1cReadingsDateTime().get(i));
        xVals.add(date + "");
    }

    // create a data object with the datasets
    return new LineData(xVals,
            generateLineDataSet(yVals, getResources().getColor(R.color.glucosio_fab_HB1AC)));
}
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
private LineData generateKetonesData() {
    List<String> xVals = new ArrayList<>();
    List<Entry> yVals = new ArrayList<>();

    for (int i = 0; i < presenter.getKetonesReadings().size(); i++) {
        float val = Float.parseFloat(presenter.getKetonesReadings().get(i).toString());
        yVals.add(new Entry(val, i));
    }

    xVals.clear();
    for (int i = 0; i < presenter.getKetonesReadingsDateTime().size(); i++) {
        String date = presenter.convertDate(presenter.getKetonesReadingsDateTime().get(i));
        xVals.add(date + "");
    }

    // create a data object with the datasets
    return new LineData(xVals,
            generateLineDataSet(yVals, getResources().getColor(R.color.glucosio_fab_ketones)));
}
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
private LineData generateWeightData() {
    List<String> xVals = new ArrayList<>();
    List<Entry> yVals = new ArrayList<>();

    for (int i = 0; i < presenter.getWeightReadings().size(); i++) {
        float val = Float.parseFloat(presenter.getWeightReadings().get(i).toString());
        yVals.add(new Entry(val, i));
    }

    xVals.clear();
    for (int i = 0; i < presenter.getWeightReadingsDateTime().size(); i++) {
        String date = presenter.convertDate(presenter.getWeightReadingsDateTime().get(i));
        xVals.add(date + "");
    }

    // create a data object with the datasets
    return new LineData(xVals,
            generateLineDataSet(yVals, getResources().getColor(R.color.glucosio_fab_weight)));
}
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
private LineData generateCholesterolData() {
    List<String> xVals = new ArrayList<>();
    List<Entry> yVals = new ArrayList<>();

    for (int i = 0; i < presenter.getCholesterolReadings().size(); i++) {
        float val = Float.parseFloat(presenter.getCholesterolReadings().get(i).toString());
        yVals.add(new Entry(val, i));
    }

    xVals.clear();
    for (int i = 0; i < presenter.getCholesterolReadingsDateTime().size(); i++) {
        String date = presenter.convertDate(presenter.getCholesterolReadingsDateTime().get(i));
        xVals.add(date + "");
    }

    // create a data object with the datasets
    return new LineData(xVals,
            generateLineDataSet(yVals, getResources().getColor(R.color.glucosio_fab_cholesterol)));
}
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
/**
 * generates a random ChartData object with just one DataSet
 *
 * @return
 */

private LineData generateDataLine(float[] datas, String type) {

    ArrayList<Entry> entryList = new ArrayList<Entry>();
    for (int i = 0; i < datas.length; i++) {
        entryList.add(new Entry(i, datas[i]));
    }

    LineDataSet d1 = new LineDataSet(entryList, "DataSet :" + type);
    d1.setLineWidth(2.5f);
    Random r = new Random();
    d1.setHighLightColor(Color.rgb(r.nextInt(256), r.nextInt(256), r.nextInt(256)));
    d1.setDrawValues(false);

    ArrayList<ILineDataSet> sets = new ArrayList<>();
    sets.add(d1);

    return new LineData(sets);
}
 

import com.github.mikephil.charting.data.LineData; //导入依赖的package包/类
private LineData buildLineData(List<Entry> seniors, List<Entry> engineer,
                               List<Entry> juniors, String[] jobTitles ){
    List<ILineDataSet> sets = new ArrayList<>();
    if (!seniors.isEmpty()){
        LineDataSet dSenior = buildLineDataSet(seniors, jobTitles[0]);
        sets.add(dSenior);
    }
    if (!engineer.isEmpty()){
        LineDataSet dEngineer = buildLineDataSet(engineer, jobTitles[1]);
        dEngineer.setColor(ColorTemplate.VORDIPLOM_COLORS[0]);
        dEngineer.setCircleColor(ColorTemplate.VORDIPLOM_COLORS[0]);
        sets.add(dEngineer);
    }
    if (!juniors.isEmpty()) {
        LineDataSet dJunior = buildLineDataSet(juniors, jobTitles[2]);
        dJunior.setColor(ColorTemplate.VORDIPLOM_COLORS[2]);
        dJunior.setCircleColor(ColorTemplate.VORDIPLOM_COLORS[2]);
        sets.add(dJunior);//add data
    }
    return  new LineData(sets);
}