default constructor for initialization in code
object responsible for animations
the default IValueFormatter that has been determined by the chart considering the provided minimum and maximum values, number of digits depends on provided chart-data
palet object used for drawing the description text in the bottom right corner of the chart
Wether to disable scroll while touching the chart. Default to true
If set to true, chart continues to scroll after touch up
Deceleration friction coefficient in [0 ; 1] interval, higher values indicate that speed will decrease slowly, for example if it set to 0, it will stop immediately. value must be < 1.0
if set to true, the marker view is drawn when a value is clicked
flag indicating if the web lines should be drawn or not
Extra offsets to be appended to the viewport
Wether to filter highlights by axis. Default is true
array of Highlight objects that reference the highlighted slices in the chart
Protectedjobstasks to be done after the view is setup
Gesture listener for custom callbacks when making gestures on the chart.
the view that represents the marker
The maximum distance in dp away from an entry causing it to highlight.
Protectedmobject that holds all data that was originally set for the chart, before it was modified or any filtering algorithms had been applied
the object responsible for representing the description text
ProtectedmFlag that indicates if highlighting per tap (touch) is enabled
palet object for drawing the information text when there are no values in the chart
Sets the minimum offset (padding) around the chart, defaults to 0
Protectedmthe legend object containing all data associated with the legend
Protectedmflag that indicates if rotation is enabled or not
let the chart know it does not need to compute autoScale (it can used the cached ones)
let the chart know it does not need to compute axis and legends (it can used the cached ones)
text that is displayed when the chart is empty
Protectedoffsetsflag that indicates if offsets calculation has already been done or not
object responsible for rendering the data
object that manages the bounds and drawing constraints of the chart
transparency the grid is drawn with (0-255)
color for the main web lines
color for the inner web
width of the main web lines
width of the inner web lines
the object representing the labels on the x-axis
the object reprsenting the y-axis labels
Returns a recyclable MPPointF instance. Returns the center polet of the chart (the whole View) in pixels.
Returns a recyclable MPPointF instance. Returns the center of the chart taking offsets under consideration. (returns the center of the content rectangle)
Returns a recyclable MPPointF instance.
Returns the bitmap that represents the chart.
Returns the rectangle that defines the borders of the chart-value surface (into which the actual values are drawn).
Returns the animator responsible for animating chart values.
returns the diameter of the pie- or radar-chart
Sets extra offsets (around the chart view) to be appended to the auto-calculated offsets.
Returns the factor that is needed to transform values into pixels.
Returns true if there are values to highlight, false if there are no values to highlight. Checks if the highlight array is null, has a length of zero or if the first object is null.
ProtectedlastSets the last highlighted value for the touchlistener.
Returns the Legend object of the chart. This method can be used to get an instance of the legend in order to customize the automatically generated Legend.
Returns true if the chart is empty (meaning it's data object is either null or contains no entries).
Sets the color of the no data text.
Sets the typeface to be used for the no data text.
Returns the radius of the chart in pixels.
gets the raw version of the current rotation angle of the pie chart the returned value could be any value, negative or positive, outside of the 360 degrees. this is used when working with rotation direction, mainly by gestures and animations.
ProtectedrequiredReturns the base offset needed for the chart without calculating the legend size.
ProtectedrequiredReturns the required offset for the chart legend.
gets a normalized version of the current rotation angle of the pie chart, which will always be between 0.0 < 360.0
Set an offset for the rotation of the RadarChart in degrees. Default 270 --> top (NORTH)
Returns true if rotation of the chart by touch is enabled, false if not.
Set this to true to enable the rotation / spinning of the chart by touch. Set it to false to disable it. Default: true
Returns the modulus that is used for skipping web-lines.
Sets the number of web-lines that should be skipped on chart web before the next one is drawn. This targets the lines that come from the center of the RadarChart.
if count = 1 -> 1 line is skipped in between
Returns the angle that each slice in the radar chart occupies.
Returns the maximum x value of the chart, regardless of zoom or translation.
Returns the minimum x value of the chart, regardless of zoom or translation.
Returns the maximum value this chart can display on it's y-axis.
Returns the minimum value this chart can display on it's y-axis.
returns the current y-max value across all DataSets
returns the current y-min value across all DataSets
Returns the range of y-values this chart can display.
Either posts a job immediately if the chart has already setup it's dimensions or adds the job to the execution queue.
Animates the rendering of the chart on the x-axis with the specified animation time. If animate(...) is called, no further calling of invalidate() is necessary to refresh the chart. ANIMATIONS ONLY WORK FOR API LEVEL 11 (Android 3.0.x) AND HIGHER.
Optionaleasing: EasingFunctiona custom easing function to be used on the animation phase
Animates the drawing / rendering of the chart on both x- and y-axis with the specified animation time. If animate(...) is called, no further calling of invalidate() is necessary to refresh the chart. ANIMATIONS ONLY WORK FOR API LEVEL 11 (Android 3.0.x) AND HIGHER.
OptionaleasingX: EasingFunctiona custom easing function to be used on the animation phase
OptionaleasingY: EasingFunctiona custom easing function to be used on the animation phase
Animates the rendering of the chart on the y-axis with the specified animation time. If animate(...) is called, no further calling of invalidate() is necessary to refresh the chart. ANIMATIONS ONLY WORK FOR API LEVEL 11 (Android 3.0.x) AND HIGHER.
Optionaleasing: EasingFunctiona custom easing function to be used on the animation phase
ProtectedcalcCalculates the y-min and y-max value and the y-delta and x-delta value
Calculates the offsets of the chart to the border depending on the position of an eventual legend or depending on the length of the y-axis and x-axis labels and their position
Clears the chart from all data (sets it to null) and refreshes it (by calling invalidate()).
Removes all DataSets (and thereby Entries) from the chart. Does not set the data object to null. Also refreshes the chart by calling invalidate().
disables intercept touchevents
Clean up references to the native view.
Returns the distance of a certain polet on the chart to the center of the chart.
ProtecteddrawDraws the description text in the bottom right corner of the chart (per default)
Protecteddrawdraws all MarkerViews on the highlighted positions
enables intercept touchevents
Returns the angle relative to the chart center for the given polet on the chart in degrees. The angle is always between 0 and 360°, 0° is NORTH, 90° is EAST, ...
Returns the xIndex for the given angle around the center of the chart. Returns -1 if not found / outofbounds.
Returns all jobs that are scheduled to be executed after onSizeChanged(...).
ProtectedgetReturns the actual position in pixels of the MarkerView for the given Highlight object.
Returns a recyclable MPPointF instance. Calculates the position around a center point, depending on the distance from the center, and the angle of the position around the center.
Highlights any y-value at the given x-value in the given DataSet. Provide -1 as the dataSetIndex to undo all highlighting.
The x-value to highlight
The y-value to highlight. Supply NaN for "any"
The dataset index to search in
OptionalcallListener: booleanShould the listener be called for this change
Highlights the values at the given indices in the given DataSets. Provide null or an empty array to undo all highlighting. This should be used to programmatically highlight values. This method will not call the listener.
Protectedinitinitialize all paints and stuff
Initializes properties/listeners of the native view.
Lets the chart know its underlying data has changed and performs all necessary recalculations. It is crucial that this method is called everytime data is changed dynamically. Not calling this method can lead to crashes or unexpected behaviour.
Called from layout when this view should assign a size and position to each of its children. Derived classes with children should override this method and call layout on each of their children.
Left position, relative to parent
Top position, relative to parent
Right position, relative to parent
Bottom position, relative to parent
Optionalcallback: anyOptionalthisArg: anyRESET PERFORMANCE TRACKING FIELDS
Sets extra offsets (around the chart view) to be appended to the auto-calculated offsets.
ProtectedsetupCalculates the required number of digits for the values that might be drawn in the chart (if enabled), and creates the default-value-formatter
Implementation of the RadarChart, a "spidernet"-like chart. It works best when displaying 5-10 entries per DataSet.