如何在HorizontalBarChart中在右侧显示标签，在左侧显示值? [英] How to show labels on right and values to left side in HorizontalBarChart?
本文介绍了如何在HorizontalBarChart中在右侧显示标签，在左侧显示值?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
使用 MPAndroidChart 3.0.2绘制水平条形图.值显示在条形的右侧.我可以使用setValueFormatter并使用IAxisValueFormatter接口在右侧显示标签.但是这些值现在不显示.
{
HorizontalBarChart barChart = (HorizontalBarChart) itemView.findViewById(R.id.barChart);
BarData data = new BarData();
ArrayList<BarEntry> valueSet1 = new ArrayList<>();
ArrayList<String> labels = new ArrayList<>();
labels.add("January");
labels.add("February");
labels.add("March");
labels.add("April");
labels.add("May");
labels.add("June");
ArrayList<String> ylabels = new ArrayList<>();
int dataCount=0;
for (int i=0;i<6;++i) {
BarEntry entry = new BarEntry(dataCount,(i+1)*2);
valueSet1.add(entry);
ylabels.add(" "+i);
dataCount++;
}
List<IBarDataSet> dataSets = new ArrayList<>();
BarDataSet bds = new BarDataSet(valueSet1, " ");
bds.setColors(ColorTemplate.MATERIAL_COLORS);
String[] xAxisLabels = labels.toArray(new String[0]);
String[] yAxisLabels = ylabels.toArray(new String[0]);
bds.setStackLabels(xAxisLabels);
dataSets.add(bds);
data.addDataSet(bds);
data.setDrawValues(true);
data.setBarWidth(0.4f);
XAxis xaxis = barChart.getXAxis();
xaxis.setDrawGridLines(false);
xaxis.setPosition(XAxis.XAxisPosition.BOTTOM);
xaxis.setGranularityEnabled(true);
xaxis.setGranularity(1);
xaxis.setDrawLabels(true);
xaxis.setLabelCount(dataCount+1);
xaxis.setXOffset(10);
xaxis.setDrawAxisLine(false);
CategoryBarChartXaxisFormatter xaxisFormatter = new CategoryBarChartXaxisFormatter(xAxisLabels);
xaxis.setValueFormatter(xaxisFormatter);
YAxis yAxisLeft = barChart.getAxisLeft();
yAxisLeft.setEnabled(false);
YAxis yAxisRight = barChart.getAxisRight();
yAxisRight.setPosition(YAxis.YAxisLabelPosition.INSIDE_CHART);
yAxisRight.setDrawGridLines(false);
yAxisRight.setDrawAxisLine(false);
Legend legend = barChart.getLegend();
legend.setEnabled(false);
barChart.setFitBars(true);
barChart.setData(data);
barChart.setDescription(null);
}
public class CategoryBarChartXaxisFormatter implements IAxisValueFormatter {
private String[] mValues;
public CategoryBarChartXaxisFormatter(String[] values) {
this.mValues = values;
}
@Override
public String getFormattedValue(float value, AxisBase axis) {
int val = (int)value;
String label="";
if(val>=0 && val<mValues.length) {
label= mValues[val];
}
else {
label= "";
}
return label;
}
}
要求是在右边显示标签字符串，并在左边显示与每个小节相对应的数字. 我确实检查了一些堆栈溢出并用谷歌搜索了它，但是到目前为止没有找到任何可行的方法.
我明白了
但这是我的要求的示例 感谢您的帮助. 谢谢您的时间
解决方案
几天前，我实现了类似的方法.这是代码...
public class MainActivity extends AppCompatActivity {
protected HorizontalBarChart mChart;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ArrayList<String> labels = new ArrayList<>();
labels.add("January");
labels.add("February");
labels.add("March");
labels.add("April");
labels.add("May");
labels.add("June");
mChart = (HorizontalBarChart) findViewById(R.id.barChart);
mChart.setDrawBarShadow(false);
mChart.setDrawValueAboveBar(true);
mChart.getDescription().setEnabled(false);
mChart.setPinchZoom(false);
mChart.setDrawGridBackground(false);
XAxis xl = mChart.getXAxis();
xl.setPosition(XAxis.XAxisPosition.BOTTOM);
xl.setDrawAxisLine(true);
xl.setDrawGridLines(false);
CategoryBarChartXaxisFormatter xaxisFormatter = new CategoryBarChartXaxisFormatter(labels);
xl.setValueFormatter(xaxisFormatter);
xl.setGranularity(1);
YAxis yl = mChart.getAxisLeft();
yl.setPosition(YAxis.YAxisLabelPosition.INSIDE_CHART);
yl.setDrawGridLines(false);
yl.setEnabled(false);
yl.setAxisMinimum(0f);
YAxis yr = mChart.getAxisRight();
yr.setPosition(YAxis.YAxisLabelPosition.INSIDE_CHART);
yr.setDrawGridLines(false);
yr.setAxisMinimum(0f);
ArrayList<BarEntry> yVals1 = new ArrayList<BarEntry>();
for (int i = 0; i < 6; i++) {
yVals1.add(new BarEntry(i, (i+1)*10));
}
BarDataSet set1;
set1 = new BarDataSet(yVals1, "DataSet 1");
ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();
dataSets.add(set1);
BarData data = new BarData(dataSets);
data.setValueTextSize(10f);
data.setBarWidth(.9f);
mChart.setData(data);
mChart.getLegend().setEnabled(false);
}
public class CategoryBarChartXaxisFormatter implements IAxisValueFormatter {
ArrayList<String> mValues;
public CategoryBarChartXaxisFormatter(ArrayList<String> values) {
this.mValues = values;
}
@Override
public String getFormattedValue(float value, AxisBase axis) {
int val = (int) value;
String label = "";
if (val >= 0 && val < mValues.size()) {
label = mValues.get(val);
} else {
label = "";
}
return label;
}
}
}
结果
希望这会有所帮助.
Drawing a horizontal bar chart using MPAndroidChart 3.0.2. the values are shown on the right of the bars. I could use setValueFormatter and use IAxisValueFormatter interface to display the labels on the right. But the values are not displayed now.
{
HorizontalBarChart barChart = (HorizontalBarChart) itemView.findViewById(R.id.barChart);
BarData data = new BarData();
ArrayList<BarEntry> valueSet1 = new ArrayList<>();
ArrayList<String> labels = new ArrayList<>();
labels.add("January");
labels.add("February");
labels.add("March");
labels.add("April");
labels.add("May");
labels.add("June");
ArrayList<String> ylabels = new ArrayList<>();
int dataCount=0;
for (int i=0;i<6;++i) {
BarEntry entry = new BarEntry(dataCount,(i+1)*2);
valueSet1.add(entry);
ylabels.add(" "+i);
dataCount++;
}
List<IBarDataSet> dataSets = new ArrayList<>();
BarDataSet bds = new BarDataSet(valueSet1, " ");
bds.setColors(ColorTemplate.MATERIAL_COLORS);
String[] xAxisLabels = labels.toArray(new String[0]);
String[] yAxisLabels = ylabels.toArray(new String[0]);
bds.setStackLabels(xAxisLabels);
dataSets.add(bds);
data.addDataSet(bds);
data.setDrawValues(true);
data.setBarWidth(0.4f);
XAxis xaxis = barChart.getXAxis();
xaxis.setDrawGridLines(false);
xaxis.setPosition(XAxis.XAxisPosition.BOTTOM);
xaxis.setGranularityEnabled(true);
xaxis.setGranularity(1);
xaxis.setDrawLabels(true);
xaxis.setLabelCount(dataCount+1);
xaxis.setXOffset(10);
xaxis.setDrawAxisLine(false);
CategoryBarChartXaxisFormatter xaxisFormatter = new CategoryBarChartXaxisFormatter(xAxisLabels);
xaxis.setValueFormatter(xaxisFormatter);
YAxis yAxisLeft = barChart.getAxisLeft();
yAxisLeft.setEnabled(false);
YAxis yAxisRight = barChart.getAxisRight();
yAxisRight.setPosition(YAxis.YAxisLabelPosition.INSIDE_CHART);
yAxisRight.setDrawGridLines(false);
yAxisRight.setDrawAxisLine(false);
Legend legend = barChart.getLegend();
legend.setEnabled(false);
barChart.setFitBars(true);
barChart.setData(data);
barChart.setDescription(null);
}
public class CategoryBarChartXaxisFormatter implements IAxisValueFormatter {
private String[] mValues;
public CategoryBarChartXaxisFormatter(String[] values) {
this.mValues = values;
}
@Override
public String getFormattedValue(float value, AxisBase axis) {
int val = (int)value;
String label="";
if(val>=0 && val<mValues.length) {
label= mValues[val];
}
else {
label= "";
}
return label;
}
}
requirement is to display label strings on the right and a number on the left corresponding to each bar. I did check some stack overflow and google it but didn't find anything that works so far.
i get this
but this is an example of my requirement Do appreciate some help. Thanks for your time
解决方案
I implemented something similar just a few days back. Here's the code...
public class MainActivity extends AppCompatActivity {
protected HorizontalBarChart mChart;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ArrayList<String> labels = new ArrayList<>();
labels.add("January");
labels.add("February");
labels.add("March");
labels.add("April");
labels.add("May");
labels.add("June");
mChart = (HorizontalBarChart) findViewById(R.id.barChart);
mChart.setDrawBarShadow(false);
mChart.setDrawValueAboveBar(true);
mChart.getDescription().setEnabled(false);
mChart.setPinchZoom(false);
mChart.setDrawGridBackground(false);
XAxis xl = mChart.getXAxis();
xl.setPosition(XAxis.XAxisPosition.BOTTOM);
xl.setDrawAxisLine(true);
xl.setDrawGridLines(false);
CategoryBarChartXaxisFormatter xaxisFormatter = new CategoryBarChartXaxisFormatter(labels);
xl.setValueFormatter(xaxisFormatter);
xl.setGranularity(1);
YAxis yl = mChart.getAxisLeft();
yl.setPosition(YAxis.YAxisLabelPosition.INSIDE_CHART);
yl.setDrawGridLines(false);
yl.setEnabled(false);
yl.setAxisMinimum(0f);
YAxis yr = mChart.getAxisRight();
yr.setPosition(YAxis.YAxisLabelPosition.INSIDE_CHART);
yr.setDrawGridLines(false);
yr.setAxisMinimum(0f);
ArrayList<BarEntry> yVals1 = new ArrayList<BarEntry>();
for (int i = 0; i < 6; i++) {
yVals1.add(new BarEntry(i, (i+1)*10));
}
BarDataSet set1;
set1 = new BarDataSet(yVals1, "DataSet 1");
ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();
dataSets.add(set1);
BarData data = new BarData(dataSets);
data.setValueTextSize(10f);
data.setBarWidth(.9f);
mChart.setData(data);
mChart.getLegend().setEnabled(false);
}
public class CategoryBarChartXaxisFormatter implements IAxisValueFormatter {
ArrayList<String> mValues;
public CategoryBarChartXaxisFormatter(ArrayList<String> values) {
this.mValues = values;
}
@Override
public String getFormattedValue(float value, AxisBase axis) {
int val = (int) value;
String label = "";
if (val >= 0 && val < mValues.size()) {
label = mValues.get(val);
} else {
label = "";
}
return label;
}
}
}
RESULT
Hope this helps.
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