The ChartData class

This wiki entry is intended to provide better insight into the data model behind MPAndroidChart.

The ChartData class is the baseclass of all data classes (subclasses), like LineData, BarData, ... and so on. It is used to provide data for the Chart via the setData(...) method of the chart.

public class LineData extends ChartData { ...

The following mentioned methods are implemented in the ChartData class and can therefore be used for all subclasses.

Styling data

• setValueTextColor(int color): Sets the color of the value-text (color in which the value-labels are drawn) for all DataSets this data object contains.
• setValueTextSize(float size): Sets the size (in dp) of the value-text for all DataSets this data object contains.
• setValueTypeface(Typeface tf): Sets the Typeface for all value-labels for all DataSets this data object contains.
• setValueFormatter(ValueFormatter f): Sets a custom ValueFormatter for all DataSets this data object contains.
• setDrawValues(boolean enabled): Enables / disables drawing values (value-text) for all DataSets this data object contains.

Getters / Convenience

• getDataSetByIndex(int index): Returns the DataSet object at the given index in the data-objects DataSet list.
• contains(Entry entry): Checks if this data object contains the specified Entry. Returns true if so, false if not. NOTE: Performance is pretty bad on this one, do not over-use in performance critical situations.
• contains(T dataSet): Returns true if this data object contains the provided DataSet, false if not.

Clearing

• clearValues(): The data object of all DataSet objects and thereby all Entries. Does not remove the provided x-values.