Java IBarDataSet类代码示例

import com.github.mikephil.charting.interfaces.datasets.IBarDataSet; //导入依赖的package包/类
protected BarData generateBarData(int dataSets, float range, int count) {
        
        ArrayList<IBarDataSet> sets = new ArrayList<IBarDataSet>();
        
        for(int i = 0; i < dataSets; i++) {
           
            ArrayList<BarEntry> entries = new ArrayList<BarEntry>();
            
//            entries = FileUtils.loadEntriesFromAssets(getActivity().getAssets(), "stacked_bars.txt");
            
            for(int j = 0; j < count; j++) {        
                entries.add(new BarEntry((float) (Math.random() * range) + range / 4, j));
            }
            
            BarDataSet ds = new BarDataSet(entries, getLabel(i));
            ds.setColors(ColorTemplate.VORDIPLOM_COLORS);
            sets.add(ds);
        }
        
        BarData d = new BarData(ChartData.generateXVals(0, count), sets);
        d.setValueTypeface(tf);
        return d;
    }
 

import com.github.mikephil.charting.interfaces.datasets.IBarDataSet; //导入依赖的package包/类
/**
 * The passed outputRect will be assigned the values of the bounding box of the specified Entry in the specified DataSet.
 * The rect will be assigned Float.MIN_VALUE in all locations if the Entry could not be found in the charts data.
 *
 * @param e
 * @return
 */
public void getBarBounds(BarEntry e, RectF outputRect) {

    RectF bounds = outputRect;

    IBarDataSet set = mData.getDataSetForEntry(e);

    if (set == null) {
        bounds.set(Float.MIN_VALUE, Float.MIN_VALUE, Float.MIN_VALUE, Float.MIN_VALUE);
        return;
    }

    float y = e.getY();
    float x = e.getX();

    float barWidth = mData.getBarWidth();

    float left = x - barWidth / 2f;
    float right = x + barWidth / 2f;
    float top = y >= 0 ? y : 0;
    float bottom = y <= 0 ? y : 0;

    bounds.set(left, top, right, bottom);

    getTransformer(set.getAxisDependency()).rectValueToPixel(outputRect);
}
 

import com.github.mikephil.charting.interfaces.datasets.IBarDataSet; //导入依赖的package包/类
@Override
public void getBarBounds(BarEntry e, RectF outputRect) {

    RectF bounds = outputRect;
    IBarDataSet set = mData.getDataSetForEntry(e);

    if (set == null) {
        outputRect.set(Float.MIN_VALUE, Float.MIN_VALUE, Float.MIN_VALUE, Float.MIN_VALUE);
        return;
    }

    float y = e.getY();
    float x = e.getX();

    float barWidth = mData.getBarWidth();

    float top = x - barWidth / 2f;
    float bottom = x + barWidth / 2f;
    float left = y >= 0 ? y : 0;
    float right = y <= 0 ? y : 0;

    bounds.set(left, top, right, bottom);

    getTransformer(set.getAxisDependency()).rectValueToPixel(bounds);

}
 

import com.github.mikephil.charting.interfaces.datasets.IBarDataSet; //导入依赖的package包/类
@Override
public Highlight getHighlight(float x, float y) {
    Highlight high = super.getHighlight(x, y);

    if(high == null) {
        return null;
    }

    MPPointD pos = getValsForTouch(x, y);

    BarData barData = mChart.getBarData();

    IBarDataSet set = barData.getDataSetByIndex(high.getDataSetIndex());
    if (set.isStacked()) {

        return getStackedHighlight(high,
                set,
                (float) pos.x,
                (float) pos.y);
    }

    MPPointD.recycleInstance(pos);

    return high;
}
 

import com.github.mikephil.charting.interfaces.datasets.IBarDataSet; //导入依赖的package包/类
@Override
public Highlight getHighlight(float x, float y) {

	BarData barData = mChart.getBarData();

	MPPointD pos = getValsForTouch(y, x);

	Highlight high = getHighlightForX((float) pos.y, y, x);
	if (high == null)
		return null;

	IBarDataSet set = barData.getDataSetByIndex(high.getDataSetIndex());
	if (set.isStacked()) {

		return getStackedHighlight(high,
				set,
				(float) pos.y,
				(float) pos.x);
	}

	MPPointD.recycleInstance(pos);

	return high;
}
 

import com.github.mikephil.charting.interfaces.datasets.IBarDataSet; //导入依赖的package包/类
protected BarData generateBarData(int dataSets, float range, int count) {
        
        ArrayList<IBarDataSet> sets = new ArrayList<IBarDataSet>();
        
        for(int i = 0; i < dataSets; i++) {
           
            ArrayList<BarEntry> entries = new ArrayList<BarEntry>();
            
//            entries = FileUtils.loadEntriesFromAssets(getActivity().getAssets(), "stacked_bars.txt");
            
            for(int j = 0; j < count; j++) {        
                entries.add(new BarEntry(j, (float) (Math.random() * range) + range / 4));
            }
            
            BarDataSet ds = new BarDataSet(entries, getLabel(i));
            ds.setColors(ColorTemplate.VORDIPLOM_COLORS);
            sets.add(ds);
        }
        
        BarData d = new BarData(sets);
        d.setValueTypeface(tf);
        return d;
    }
 

import com.github.mikephil.charting.interfaces.datasets.IBarDataSet; //导入依赖的package包/类
/**
 * generates a random ChartData object with just one DataSet
 * 
 * @return
 */
private BarData generateData(int cnt) {

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

    for (int i = 0; i < 12; i++) {
        entries.add(new BarEntry(i, (float) (Math.random() * 70) + 30));
    }

    BarDataSet d = new BarDataSet(entries, "New DataSet " + cnt);
    d.setColors(ColorTemplate.VORDIPLOM_COLORS);
    d.setBarShadowColor(Color.rgb(203, 203, 203));
    
    ArrayList<IBarDataSet> sets = new ArrayList<IBarDataSet>();
    sets.add(d);
    
    BarData cd = new BarData(sets);
    cd.setBarWidth(0.9f);
    return cd;
}
 

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

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

        //RealmBarDataSet<RealmDemoData> set = new RealmBarDataSet<RealmDemoData>(result, "stackValues", "xIndex"); // normal entries
        RealmBarDataSet<RealmDemoData> set = new RealmBarDataSet<RealmDemoData>(result, "xValue", "stackValues", "floatValue"); // stacked entries
        set.setColors(new int[]{ColorTemplate.rgb("#8BC34A"), ColorTemplate.rgb("#FFC107"), ColorTemplate.rgb("#9E9E9E")});
        set.setLabel("Mobile OS distribution");
        set.setStackLabels(new String[]{"iOS", "Android", "Other"});

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

        // create a data object with the dataset list
        BarData data = new BarData(dataSets);
        styleData(data);
        data.setValueTextColor(Color.WHITE);

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

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

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

        //RealmBarDataSet<RealmDemoData> set = new RealmBarDataSet<RealmDemoData>(result, "stackValues", "xIndex"); // normal entries
        RealmBarDataSet<RealmDemoData> set = new RealmBarDataSet<RealmDemoData>(result, "xValue", "yValue"); // stacked entries
        set.setColors(new int[] {ColorTemplate.rgb("#FF5722"), ColorTemplate.rgb("#03A9F4")});
        set.setLabel("Realm BarDataSet");

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

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

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

import com.github.mikephil.charting.interfaces.datasets.IBarDataSet; //导入依赖的package包/类
/**
 * Returns the bounding box of the specified Entry in the specified DataSet. Returns null if the Entry could not be
 * found in the charts data.
 * 
 * @param e
 * @return
 */
public RectF getBarBounds(BarEntry e) {

	IBarDataSet set = mData.getDataSetForEntry(e);

	if (set == null)
		return null;

	float barspace = set.getBarSpace();
	float y = e.getVal();
	float x = e.getXIndex();

	float barWidth = 0.5f;

	float spaceHalf = barspace / 2f;
	float left = x - barWidth + spaceHalf;
	float right = x + barWidth - spaceHalf;
	float top = y >= 0 ? y : 0;
	float bottom = y <= 0 ? y : 0;

	RectF bounds = new RectF(left, top, right, bottom);

	getTransformer(set.getAxisDependency()).rectValueToPixel(bounds);

	return bounds;
}
 

import com.github.mikephil.charting.interfaces.datasets.IBarDataSet; //导入依赖的package包/类
@Override
public Highlight getHighlight(float x, float y) {

	Highlight h = super.getHighlight(x, y);

	if (h == null)
		return h;
	else {

		IBarDataSet set = mChart.getBarData().getDataSetByIndex(h.getDataSetIndex());

		if (set.isStacked()) {

			// create an array of the touch-point
			float[] pts = new float[2];
			pts[0] = y;

			// take any transformer to determine the x-axis value
			mChart.getTransformer(set.getAxisDependency()).pixelsToValue(pts);

			return getStackedHighlight(h, set, h.getXIndex(), h.getDataSetIndex(), pts[0]);
		} else
			return h;
	}
}
 

import com.github.mikephil.charting.interfaces.datasets.IBarDataSet; //导入依赖的package包/类
@Override
public Highlight getHighlight(float x, float y) {

	Highlight h = super.getHighlight(x, y);

	if (h == null)
		return h;
	else {

		IBarDataSet set = mChart.getBarData().getDataSetByIndex(h.getDataSetIndex());

		if (set.isStacked()) {

			// create an array of the touch-point
			float[] pts = new float[2];
			pts[1] = y;

			// take any transformer to determine the x-axis value
			mChart.getTransformer(set.getAxisDependency()).pixelsToValue(pts);

			return getStackedHighlight(h, set, h.getXIndex(), h.getDataSetIndex(), pts[1]);
		} else
			return h;
	}
}
 

import com.github.mikephil.charting.interfaces.datasets.IBarDataSet; //导入依赖的package包/类
/**
 * generates a random ChartData object with just one DataSet
 * 
 * @return
 */
private BarData generateData(int cnt) {

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

    for (int i = 0; i < 12; i++) {
        entries.add(new BarEntry((int) (Math.random() * 70) + 30, i));
    }

    BarDataSet d = new BarDataSet(entries, "New DataSet " + cnt);    
    d.setBarSpacePercent(20f);
    d.setColors(ColorTemplate.VORDIPLOM_COLORS);
    d.setBarShadowColor(Color.rgb(203, 203, 203));
    
    ArrayList<IBarDataSet> sets = new ArrayList<IBarDataSet>();
    sets.add(d);
    
    BarData cd = new BarData(getMonths(), sets);
    return cd;
}
 

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

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

        //RealmBarDataSet<RealmDemoData> set = new RealmBarDataSet<RealmDemoData>(result, "stackValues", "xIndex"); // normal entries
        RealmBarDataSet<RealmDemoData> set = new RealmBarDataSet<RealmDemoData>(result, "stackValues", "xIndex", "floatValue"); // stacked entries
        set.setColors(new int[]{ColorTemplate.rgb("#8BC34A"), ColorTemplate.rgb("#FFC107"), ColorTemplate.rgb("#9E9E9E")});
        set.setLabel("Mobile OS distribution");
        set.setStackLabels(new String[]{"iOS", "Android", "Other"});

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

        // create a data object with the dataset list
        RealmBarData data = new RealmBarData(result, "xValue", dataSets);
        styleData(data);
        data.setValueTextColor(Color.WHITE);

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

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

        ArrayList<BarEntry> yVals1 = new ArrayList<BarEntry>();
        ArrayList<String> xVals = new ArrayList<String>();

        for (int i = 0; i < count; i++) {
            xVals.add(mMonths[i % 12]);
            yVals1.add(new BarEntry((float) (Math.random() * range), i));
        }

        BarDataSet set1 = new BarDataSet(yVals1, "DataSet 1");

        ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();
        dataSets.add(set1);

        BarData data = new BarData(xVals, dataSets);
        data.setValueTextSize(10f);
        data.setValueTypeface(tf);

        mChart.setData(data);
    }