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Java Development

Create Graph Fields

by Retired on ‎02-16-2010 12:10 PM - edited on ‎03-10-2016 09:21 AM by BlackBerry Development Advisor (6,320 Views)



This article applies to the following:

  • BlackBerry® smartphones based on Java® technology



The following sample code demonstrates how to create custom graph fields. The sample contains the following classes:


  • BarGraphField - A custom field that draws a bar graph
  • BarScreen - A screen demonstrating the use of BarGraphField
  • BlackBerryGraphs - The main application
  • GraphDemoScreen - The introductory screen for the sample application that allows a BlackBerry smartphone user to choose the type of graph to preview
  • GraphField - The base class that the other *GraphFields extend
  • LegendField - A custom field that draws a legend
  • LineGraphField - A custom field that draws a line or scatter graph
  • LineScreen - A screen demonstrating the use of LineGraphField
  • PieGraphField - A custom field that draws a pie chart
  • PieScreen - A screen demonstrating the use of PieGraphField and LegendField

The entire sample can be downloaded here. The following are some sample screen shots that illustrate the custom graph fields.



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