Java Legend類代碼示例

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
@Override
public void setAxis(AnalysisXAxisValueFormatter formatter, float yAxisMaxValue) {

    XAxis xAxis = mRadarChart.getXAxis();
    xAxis.setTextSize(9f);
    xAxis.setYOffset(0f);
    xAxis.setXOffset(0f);
    xAxis.setValueFormatter(formatter);
    xAxis.setTextColor(Color.WHITE);

    YAxis yAxis = mRadarChart.getYAxis();
    yAxis.setLabelCount(5, false);
    yAxis.setTextSize(9f);
    yAxis.setAxisMinimum(0f);
    yAxis.setAxisMaximum(yAxisMaxValue);
    yAxis.setDrawLabels(false);

    Legend l = mRadarChart.getLegend();
    l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
    l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.CENTER);
    l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
    l.setDrawInside(false);
    l.setXEntrySpace(7f);
    l.setYEntrySpace(5f);
    l.setTextColor(Color.WHITE);
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
/**
 * Draws the Legend-form at the given position with the color at the given
 * index.
 *
 * @param c     canvas to draw with
 * @param x     position
 * @param y     position
 * @param index the index of the color to use (in the colors array)
 */
protected void drawForm(Canvas c, float x, float y, int index, Legend legend) {

    if (legend.getColors()[index] == ColorTemplate.COLOR_SKIP)
        return;

    mLegendFormPaint.setColor(legend.getColors()[index]);

    float formsize = legend.getFormSize();
    float half = formsize / 2f;

    switch (legend.getForm()) {
        case CIRCLE:
            c.drawCircle(x + half, y, half, mLegendFormPaint);
            break;
        case SQUARE:
            c.drawRect(x, y - half, x + formsize, y + half, mLegendFormPaint);
            break;
        case LINE:
            c.drawLine(x, y, x + formsize, y, mLegendFormPaint);
            break;
    }
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.frag_simple_pie, container, false);
    
    mChart = (PieChart) v.findViewById(R.id.pieChart1);
    mChart.setDescription("");
    
    Typeface tf = Typeface.createFromAsset(getActivity().getAssets(), "OpenSans-Light.ttf");
    
    mChart.setCenterTextTypeface(tf);
    mChart.setCenterText(generateCenterText());
    mChart.setCenterTextSize(10f);
    mChart.setCenterTextTypeface(tf);
     
    // radius of the center hole in percent of maximum radius
    mChart.setHoleRadius(45f);
    mChart.setTransparentCircleRadius(50f);
    
    Legend l = mChart.getLegend();
    l.setPosition(LegendPosition.RIGHT_OF_CHART);
    
    mChart.setData(generatePieData());
    
    return v;
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
private void initTemperatureChart() {
    m_barChart.setDrawBarShadow(false);
    m_barChart.setDrawValueAboveBar(true);

    m_barChart.setDescription("");
    m_barChart.setDrawBarShadow(false);

    m_barChart.setDrawGridBackground(false);
    m_barChart.setTouchEnabled(false);
    m_barChart.setScaleXEnabled(false);
    m_barChart.setScaleYEnabled(false);

    XAxis xAxis = m_barChart.getXAxis();
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setDrawGridLines(false);
    xAxis.setSpaceBetweenLabels(1);

    Legend l = m_barChart.getLegend();
    l.setPosition(Legend.LegendPosition.BELOW_CHART_LEFT);
    l.setForm(Legend.LegendForm.SQUARE);
    l.setFormSize(9f);
    l.setTextSize(11f);
    l.setXEntrySpace(4f);
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
/**
 * Create a legend based on a dummy chart.  The legend
 * is used by all charts and is positioned
 * across the top of the screen.
 * @param data - CombinedData used to generate the legend
 */
private void prepareLegend(final CombinedData data){
  //The dummy chart is never shown, but it's legend is.
  final CombinedChart dummyChart = (CombinedChart) mRoot.findViewById(R.id.legend);
  dummyChart.getPaint(Chart.PAINT_DESCRIPTION).setTextAlign(Paint.Align.CENTER);
  dummyChart.getXAxis().setEnabled(false);
  dummyChart.getAxisRight().setEnabled(false);
  dummyChart.getAxisLeft().setEnabled(false);
  final Description description = new Description();
  description.setText("");
  description.setTextSize(10f);
  dummyChart.setDescription(description);
  dummyChart.setBackgroundColor(Color.WHITE);
  dummyChart.setDrawGridBackground(false);
  dummyChart.setData(data);

  final Legend l = dummyChart.getLegend();
  l.setEnabled(true);
  // The positioning of the legend effectively
  // hides the dummy chart from view.
  l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.CENTER);
  l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
  dummyChart.invalidate();
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
private void customizePieChart() {
    pieChart.setUsePercentValues(true);
    pieChart.setDescription(" ");

    pieChart.setDrawHoleEnabled(true);
    pieChart.setHoleColor(Color.TRANSPARENT);
    pieChart.setHoleRadius(15);
    pieChart.setTransparentCircleRadius(20);

    pieChart.setRotationAngle(0);
    pieChart.setRotationEnabled(true);
    pieChart.animateY(2000);

    pieChart.setCenterTextSize(12);
    pieChart.setCenterTextColor(ContextCompat.getColor(getContext(), R.color.colorGraphite));
    pieChart.setDrawSliceText(false);

    Legend l = pieChart.getLegend();
    l.setEnabled(false);
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
@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.setBackgroundColor(Color.WHITE);
    mChart.setGridBackgroundColor(mFillColor);
    mChart.setDrawGridBackground(true);

    mChart.setDrawBorders(true);

    // no description text
    mChart.getDescription().setEnabled(false);

    // if disabled, scaling can be done on x- and y-axis separately
    mChart.setPinchZoom(false);

    Legend l = mChart.getLegend();
    l.setEnabled(false);

    XAxis xAxis = mChart.getXAxis();
    xAxis.setEnabled(false);

    YAxis leftAxis = mChart.getAxisLeft();
    leftAxis.setAxisMaximum(900f);
    leftAxis.setAxisMinimum(-250f);
    leftAxis.setDrawAxisLine(false);
    leftAxis.setDrawZeroLine(false);
    leftAxis.setDrawGridLines(false);

    mChart.getAxisRight().setEnabled(false);

    // add data
    setData(100, 60);

    mChart.invalidate();
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
private void addData() {
    ArrayList<PieEntry> yEntrys = new ArrayList<>();
    ArrayList<String> xEntrys = new ArrayList<>();

    for(int i = 0; i < yData.length; i++){
        yEntrys.add(new PieEntry(yData[i] , i));
        xEntrys.add(xData[i]);
    }
    PieDataSet pieDataSet = new PieDataSet(yEntrys, "Category History");
    pieDataSet.setSliceSpace(2);
    pieDataSet.setValueTextSize(12);
    pieDataSet.setValueTextColor(Color.WHITE);
    ArrayList<Integer> colors = new ArrayList<>();
    colors.add(Color.RED);
    colors.add(Color.BLUE);
    pieDataSet.setColors(colors);
    Legend legend = pieChart.getLegend();

    List<LegendEntry> legends = new ArrayList<>();
    LegendEntry red = new LegendEntry();
    red.label = "Missed";
    red.formColor = Color.RED;
    legends.add(red);
    LegendEntry blue = new LegendEntry();
    blue.label = "Completed";
    blue.formColor = Color.BLUE;
    legends.add(blue);
    pieChart.getLegend().setCustom(legends);
    legend.setForm(Legend.LegendForm.CIRCLE);

    PieData pieData = new PieData(pieDataSet);
    pieChart.setData(pieData);
    pieChart.invalidate();
    pieChart.getDescription().setEnabled(false);
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
public LegendRenderer(ViewPortHandler viewPortHandler, Legend legend) {
    super(viewPortHandler);

    this.mLegend = legend;

    mLegendLabelPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    mLegendLabelPaint.setTextSize(Utils.convertDpToPixel(9f));
    mLegendLabelPaint.setTextAlign(Align.LEFT);

    mLegendFormPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    mLegendFormPaint.setStyle(Paint.Style.FILL);
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.frag_simple_bar, container, false);
    
    // create a new chart object
    mChart = new BarChart(getActivity());
    mChart.getDescription().setEnabled(false);
    mChart.setOnChartGestureListener(this);
    
    MyMarkerView mv = new MyMarkerView(getActivity(), R.layout.custom_marker_view);
    mv.setChartView(mChart); // For bounds control
    mChart.setMarker(mv);

    mChart.setDrawGridBackground(false);
    mChart.setDrawBarShadow(false);
    
    Typeface tf = Typeface.createFromAsset(getActivity().getAssets(),"OpenSans-Light.ttf");
    
    mChart.setData(generateBarData(1, 20000, 12));
    
    Legend l = mChart.getLegend();
    l.setTypeface(tf);
    
    YAxis leftAxis = mChart.getAxisLeft();
    leftAxis.setTypeface(tf);
    leftAxis.setAxisMinimum(0f); // this replaces setStartAtZero(true)

    mChart.getAxisRight().setEnabled(false);
    
    XAxis xAxis = mChart.getXAxis();
    xAxis.setEnabled(false);
    
    // programatically add the chart
    FrameLayout parent = (FrameLayout) v.findViewById(R.id.parentLayout);
    parent.addView(mChart);
    
    return v;
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.frag_simple_scatter, container, false);
    
    mChart = (ScatterChart) v.findViewById(R.id.scatterChart1);
    mChart.getDescription().setEnabled(false);
    
    Typeface tf = Typeface.createFromAsset(getActivity().getAssets(),"OpenSans-Light.ttf");
    
    MyMarkerView mv = new MyMarkerView(getActivity(), R.layout.custom_marker_view);
    mv.setChartView(mChart); // For bounds control
    mChart.setMarker(mv);

    mChart.setDrawGridBackground(false);
    mChart.setData(generateScatterData(6, 10000, 200));
    
    XAxis xAxis = mChart.getXAxis();
    xAxis.setEnabled(true);
    xAxis.setPosition(XAxisPosition.BOTTOM);
    
    YAxis leftAxis = mChart.getAxisLeft();
    leftAxis.setTypeface(tf);
    
    YAxis rightAxis = mChart.getAxisRight();
    rightAxis.setTypeface(tf);
    rightAxis.setDrawGridLines(false);
    
    Legend l = mChart.getLegend();
    l.setWordWrapEnabled(true);
    l.setTypeface(tf);
    l.setFormSize(14f);
    l.setTextSize(9f);
    
    // increase the space between legend & bottom and legend & content
    l.setYOffset(13f);       
    mChart.setExtraBottomOffset(16f);
    
    return v;
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.frag_simple_pie, container, false);
    
    mChart = (PieChart) v.findViewById(R.id.pieChart1);
    mChart.getDescription().setEnabled(false);
    
    Typeface tf = Typeface.createFromAsset(getActivity().getAssets(), "OpenSans-Light.ttf");
    
    mChart.setCenterTextTypeface(tf);
    mChart.setCenterText(generateCenterText());
    mChart.setCenterTextSize(10f);
    mChart.setCenterTextTypeface(tf);
     
    // radius of the center hole in percent of maximum radius
    mChart.setHoleRadius(45f);
    mChart.setTransparentCircleRadius(50f);
    
    Legend l = mChart.getLegend();
    l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
    l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
    l.setOrientation(Legend.LegendOrientation.VERTICAL);
    l.setDrawInside(false);
    
    mChart.setData(generatePieData());
    
    return v;
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
private void setData(int count, float range) {

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

        for (int i = 0; i < count; i++) {
            float mult = (range + 1);
            float val = (float) (Math.random() * mult) + 3;// + (float)
                                                           // ((mult *
                                                           // 0.1) / 10);
            yVals.add(new Entry(i * 0.001f, val));
        }

        // create a dataset and give it a type
        LineDataSet set1 = new LineDataSet(yVals, "DataSet 1");
        
        set1.setColor(Color.BLACK);
        set1.setLineWidth(0.5f);
        set1.setDrawValues(false);
        set1.setDrawCircles(false);
        set1.setMode(LineDataSet.Mode.LINEAR);
        set1.setDrawFilled(false);

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

        // set data
        mChart.setData(data);
        
        // get the legend (only possible after setting data)
        Legend l = mChart.getLegend();
        l.setEnabled(false);
    }
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_piechart);

    tvX = (TextView) findViewById(R.id.tvXMax);
    tvY = (TextView) findViewById(R.id.tvYMax);

    mSeekBarX = (SeekBar) findViewById(R.id.seekBar1);
    mSeekBarY = (SeekBar) findViewById(R.id.seekBar2);
    mSeekBarX.setProgress(4);
    mSeekBarY.setProgress(10);

    mChart = (PieChart) findViewById(R.id.chart1);
    mChart.setUsePercentValues(true);
    mChart.getDescription().setEnabled(false);
    mChart.setExtraOffsets(5, 10, 5, 5);

    mChart.setDragDecelerationFrictionCoef(0.95f);

    mChart.setCenterTextTypeface(mTfLight);
    mChart.setCenterText(generateCenterSpannableText());

    mChart.setDrawHoleEnabled(true);
    mChart.setHoleColor(Color.WHITE);

    mChart.setTransparentCircleColor(Color.WHITE);
    mChart.setTransparentCircleAlpha(110);

    mChart.setHoleRadius(58f);
    mChart.setTransparentCircleRadius(61f);

    mChart.setDrawCenterText(true);

    mChart.setRotationAngle(0);
    // enable rotation of the chart by touch
    mChart.setRotationEnabled(true);
    mChart.setHighlightPerTapEnabled(true);

    // mChart.setUnit(" €");
    // mChart.setDrawUnitsInChart(true);

    // add a selection listener
    mChart.setOnChartValueSelectedListener(this);

    setData(4, 100);

    mChart.animateY(1400, Easing.EasingOption.EaseInOutQuad);
    // mChart.spin(2000, 0, 360);

    mSeekBarX.setOnSeekBarChangeListener(this);
    mSeekBarY.setOnSeekBarChangeListener(this);

    Legend l = mChart.getLegend();
    l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
    l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
    l.setOrientation(Legend.LegendOrientation.VERTICAL);
    l.setDrawInside(false);
    l.setXEntrySpace(7f);
    l.setYEntrySpace(0f);
    l.setYOffset(0f);

    // entry label styling
    mChart.setEntryLabelColor(Color.WHITE);
    mChart.setEntryLabelTypeface(mTfRegular);
    mChart.setEntryLabelTextSize(12f);
}
 

import com.github.mikephil.charting.components.Legend; //導入依賴的package包/類
private void initBatteryChart() {
    mBatteryChart = findViewById(R.id.batteryPieChart);
    // configure pie chart
    mBatteryChart.setUsePercentValues(true);
    mBatteryChart.setDescription(new Description());
    // enable hole and configure
    mBatteryChart.setDrawHoleEnabled(true);
    Legend legend = mBatteryChart.getLegend();
    legend.setEnabled(false);
}