Varun
Reputation: 87
Android : Bar Chart and Pie Chart in Achartengine
i am drawing a bar chart and pie chart to represent the various application names in it using the achartengine library.
When i instantiate CategorySeries object it requires a series title as :
CategorySeries series = new CategorySeries("title") //IN BAR CHART
CategorySeries series = new CategorySeries("title") //IN PIE CHART
Unlike Pie chart the applications name does not get inflated at the bottom of the bar chart say, in case of pie chart its as follows :
(1) application 1
(2) application 2
(3) application ... up to
(10) application 10.
But its not showing in case of bar char but instead its showing as :
(1) NUMBER OF APPLICATIONS ---->>> (This is the series title i had passed in as the parameter while instantiating the object of CategorySeries)
PLEASE SUGGEST ME TO SHOW THE KEY OF BAR CHART ASWELL,I HAVE ATTACHED A CODE SNIPPET BELOW
if (c.getCount() > 0) {
if (! mPieChart) {
series = new CategorySeries("NUMBER OF APPLICATIONS");
getActivity().startManagingCursor(c);
c.moveToPosition(-1);
//series.clear();
while (c.moveToNext()) {
recievedBytes = c.getLong(ApplicationDataCounterDao.CONTENT_RECEIVED_COLUMN);
sentBytes = c.getLong(ApplicationDataCounterDao.CONTENT_SENT_COLUMN);
totalBytes = (recievedBytes + sentBytes) / (1024 * 1024);
if (totalBytes > 0) {
applicationInfo
.add(new ApplicationDataUsage(
c.getString(ApplicationDataCounterDao.CONTENT_APPLICATION_NAME_COLUMN),
Double.toString(totalBytes)));
}
}
int size = applicationInfo.size();
for (int i = 0; i < size; ++i) {
Log.v("BAR CHART", "data added are " + applicationInfo.get(i).mApplicationName);
double value = Double.parseDouble(applicationInfo
.get(i).mDataUsage);
series.add("BAR", value);
}
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
dataset.addSeries(series.toXYSeries());
XYSeriesRenderer renderer = new XYSeriesRenderer();
renderer.setDisplayChartValues(true);
renderer.setChartValuesSpacing((float) 0.5);
renderer.setColor(Color.CYAN);
XYMultipleSeriesRenderer mRenderer = new XYMultipleSeriesRenderer();
mRenderer.setBarSpacing(0.5);
mRenderer.getBarSpacing();
mRenderer.setXTitle("Application Number");
mRenderer.setYTitle("Data Usage");
mRenderer.setAxesColor(Color.GREEN);
mRenderer.setZoomButtonsVisible(true);
mRenderer.setInScroll(true);
mRenderer.setLabelsColor(Color.RED);
mRenderer.addSeriesRenderer(renderer);
if (mChartViewBar == null) {
Log.v(LOG_TAG, "chart view is null");
mChartViewBar = ChartFactory
.getBarChartView(getActivity(), dataset,
mRenderer, Type.DEFAULT);
mRenderer.setClickEnabled(true);
mRenderer.setSelectableBuffer(10);
mChartViewBar
.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SeriesSelection seriesSelection = mChartViewBar
.getCurrentSeriesAndPoint();
CategorySeries series22 =new CategorySeries("333");
mChartViewBar.repaint();
if (seriesSelection == null) {
Toast.makeText(
getActivity(),
"No chart element was clicked",
Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(
getActivity(),
"APPLICATION NAME : "
+ series22.getTitle()
+ 1
+ " was clicked"
+ " DATA USAGE : "
+ seriesSelection
.getXValue(),
Toast.LENGTH_SHORT).show();
}
}
});
mChartLayout.removeAllViews();
mChartLayout.addView(mChartViewBar, new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));
} else {
mChartLayout.removeAllViews();
mChartLayout.addView(mChartViewBar, new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));
mChartViewBar.repaint();
}
} else if (mPieChart) {
CategorySeries seriesPie = new CategorySeries("Pie Graph");
getActivity().startManagingCursor(c);
c.moveToPosition(-1);
while (c.moveToNext()) {
long recievedBytes = c .getLong(ApplicationDataCounterDao.CONTENT_RECEIVED_COLUMN);
Long sentBytes = c.getLong(ApplicationDataCounterDao.CONTENT_SENT_COLUMN);
totalBytes = (recievedBytes + sentBytes)
/ (1024 * 1024);
if (totalBytes > 0) {
applicationInfo
.add(new ApplicationDataUsage(
c.getString(ApplicationDataCounterDao.CONTENT_APPLICATION_NAME_COLUMN),
Double.toString(totalBytes)));
}
}
int size = applicationInfo.size();
for (ApplicationDataUsage data_value : applicationInfo) {
Log.v("PIE CHART", "data added are " + data_value.mApplicationName);
double dataUsage = Double
.parseDouble(data_value.mDataUsage);
seriesPie.add(data_value.mApplicationName, dataUsage);
}
for (int i = 0; i < size; ++i) {
prepareColors();
}
DefaultRenderer renderer = new DefaultRenderer();
for (int fillColor : colorList) {
// Log.d("1111111111",
// "FILL COLOUR TILL SIZE OF COLORLIST");
SimpleSeriesRenderer r = new SimpleSeriesRenderer();
r.setColor(fillColor);
renderer.addSeriesRenderer(r);
}
renderer.setInScroll(true);
renderer.setChartTitle("APPLICATION WISE PIE CHART");
renderer.setChartTitleTextSize(20);
renderer.setApplyBackgroundColor(true);
renderer.setBackgroundColor(Color.BLACK);
renderer.setZoomButtonsVisible(true);
if (mChartViewPie == null) {
Log.v(LOG_TAG, "chat view is null");
// series.clear();
mChartViewPie = ChartFactory.getPieChartView(
getActivity(), seriesPie, renderer);
renderer.setClickEnabled(true);
renderer.setSelectableBuffer(10);
mChartViewPie
.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SeriesSelection seriesSelection = mChartViewPie
.getCurrentSeriesAndPoint();
mChartViewPie.repaint();
if (seriesSelection == null) {
ToastHelper.showToastMessage(
"No item was Clicked",
getActivity());
} else {
ToastHelper.showToastMessage(
"Application number "
+ seriesSelection
.getPointIndex()
+ " was clicked and it's Data Usage is "
+ seriesSelection
.getValue(),
getActivity());
}
}
});
/*if (mChartViewBar != null) {
mChartLayout.removeView(mChartViewBar);
}
if (mChartViewPie != null) {
mChartLayout.removeView(mChartViewPie);
}*/
mChartLayout.addView(mChartViewPie, new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));
} else {
/* if (mChartViewBar != null) {
mChartLayout.removeView(mChartViewBar);
}
if (mChartViewPie != null) {
mChartLayout.removeView(mChartViewPie);
}*/
mChartLayout.removeAllViews();
mChartLayout.addView(mChartViewPie, new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));
mChartViewPie.repaint();
}
}
Upvotes: 0
Views: 1233
Answers (1)
Dan D.
Reputation: 32391
You are confusing the legend with the X axis labels. The BarChart is an XYChart which means it is getting both legend and x axis labels. The PieChart is not an XYChart, so it is not getting X axis and Y axis.
The series titles go to the legend, as you mentioned.
In the X axis the series values indexes go by default. However, you can hide the default labels and add your own custom ones:
renderer.setXLabels(0);
renderer.addXTextLabel(1, "label);
renderer.addXTextLabel(2, "label);
...
Upvotes: 1
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