Develop Reference

How to draw area chart in Android using MPAndroidChart?

I am looking for a way to draw area chart using MPAndroidChart. I am aware , I can use StackedBar Chart but that doesn't quite serve the purpose.
Is there a way to draw Area chart such as shown below using MPAndroidChart and if not what might be the suitable alternate?
sample image souce-wikipedia

you can make chart as you want using MPAndroidChart.
I tested using sample app in google Play Store(try search 'MPAndroidChart').
try multiLineChart and make option Toggle Filled. I think this is what you're looking for.

LineChart issue using MPAndroidChart library

I am trying to make a simple smooth line chart which show the X axis as date-time on bottom and Y axis as normal left side. I just started using MPAndroidChart API and its example app in Git. In the example Line chart I am not able to find option to change X axis labels to show on bottom instead of top as show currently.
Just like:
Also is there a way to handle date-time data for X axis values ?
Also I tried my hand on Androidplot API but to make the line smooth there I need to make changes in library code which is not compiling at all in my Eclipse and giving errors. Also in Androidplot I did not find an option to show popup with data once I click on line chart.
So if anyone know how to make a smooth line chart using Androidplot API without modifying its library code and how to bring small popup with data in Androidplot API please reply.

// XAxis settings
graph.getXAxis().setPosition(XAxis.XAxisPosition.BOTTOM);
graph.getXAxis().setLabelsToSkip(0);
// and
// make the line smooth
graph.getLineData().getDataSets().get(0).lineDataSet.setDrawCubic(true);

Refer this:
http://wptrafficanalyzer.in/blog/android-drawing-line-chart-using-achartengine/
for smooth curve lines please refer this:
How to make line with rounded (smooth) corners with AndroidPlot
Hope this may help you.
AChartEngine is a charting library for Android applications. Using AChartEngine library, we can plot various charts like line chart, area chart, pie chart, time chart, bubble chart etc.

AchartEngine Android Special Pie Chart

I'm using the AchartEngine libraries to make a pie chart app. But I want to display two dimensional data like this
I can get nice standard pie charts but I know how to do the second dimension. Can anyone please help? The guys on the achartengine-google-support group say it's possible but I was redirected here for tech questions.
Many Thanks

If you take a look at the Budget Pie chart demo it shows you how to highlight a section of your pie chart (https://code.google.com/p/achartengine/source/browse/trunk/achartengine/demo/org/achartengine/chartdemo/demo/chart/BudgetPieChart.java). Take a look at "Project 1" below to see how this looks.
However there is no way to change the radius like you want to in your screenshot above. If you want to achieve this the easiest way would be to extend PieChart and copy over the draw method. In the draw method where it renders highlighted sections (if (seriesRenderer.isHighlighted()) ...) use a different radius instead of translating to an offset.

Achart engine - How to display the Pie chart legends to center

I am using Achart Engine to display the pie chart, now i see that the legends are not displaying to the center.
i want the legends to be displayed in center how to do it?

As stated by many questions and answers out there the legend cannot be centered for achartengine. I was actually looking for it myself.
The only solution i have herd of is to hid the current one and then display a new one in a text view.

Moving pie chart in Achartengine

I am using achartengine for creating piecharts in android. Now everything is going fine except that my pie chart can be dragged/moved to anywhere within the layout. I want my pie chart to be fixed at its own location.

Call renderer.setPanEnabled(false); on the DefaultRenderer object.

You may also want to disable the pinch zoom together with the pan:
renderer.setZoomEnabled(false);