B4A Library Spark

This is a wrap for this Github project: https://github.com/robinhood/spark

Spark

Author:
Version: 1.0

• • Functions:
    • getItem (index As Int) As Object
      
    • getX (arg0 As Int) As Float
      
    • getY (index As Int) As Float
      
    • hasBaseLine As Boolean
      
    • notifyDataSetChanged
      
    • notifyDataSetInvalidated
      
    • randomize
      
    • registerDataSetObserver (arg0 As android.database.DataSetObserver)
      
    • unregisterDataSetObserver (arg0 As android.database.DataSetObserver)
  • Properties:
    • BaseLine As Float [read only]
      
    • Count As Int [read only]
      
    • Data As Float() [write only]
      
    • DataBounds As android.graphics.RectF [read only]
• SparkView
  • Events:
    • onScrubbed (value As Object)
  • Fields:
    • ba As BA
  • Functions:
    • BringToFront
      
    • DesignerCreateView (base As Panel, lw As Label, props As Map)
      
    • getScaledX (x As Float) As Float
      Get the scaled (pixel) coordinate of your given x value. If no scale is currently computed
      (for instance {@link SparkAdapter} has not been set or has less than 2 points of data). This
      method will return the unscaled value.
      x: the value to scale (should be the same units as your graph's data points)
      Return type: @return:the pixel coordinates of where this point is located in SparkView's bounds
    • getScaledY (y As Float) As Float
      Get the scaled (pixel) coordinate of your given y value. If no scale is currently computed
      (for instance {@link SparkAdapter} has not been set or has less than 2 points of data). This
      method will return the unscaled value.
      y: the value to scale (should be the same units as your graph's data points)
      Return type: @return:the pixel coordinates of where this point is located in SparkView's bounds
    • Initialize (EventName As String)
      
    • Invalidate
      
    • Invalidate2 (arg0 As android.graphics.Rect)
      
    • Invalidate3 (arg0 As Int, arg1 As Int, arg2 As Int, arg3 As Int)
      
    • IsInitialized As Boolean
      
    • RemoveView
      
    • RequestFocus As Boolean
      
    • SendToBack
      
    • SetBackgroundImage (arg0 As android.graphics.Bitmap) As BitmapDrawable
      
    • SetColorAnimated (arg0 As Int, arg1 As Int, arg2 As Int)
      
    • SetLayout (arg0 As Int, arg1 As Int, arg2 As Int, arg3 As Int)
      
    • SetLayoutAnimated (arg0 As Int, arg1 As Int, arg2 As Int, arg3 As Int, arg4 As Int)
      
    • SetVisibleAnimated (arg0 As Int, arg1 As Boolean)
  • Properties:
    • Adapter As com.robinhood.spark.SparkAdapter
      Get the backing {@link SparkAdapter}
    • AnimateChanges As Boolean
      Whether or not this view animates changes to its data.
    • Background As android.graphics.drawable.Drawable
      
    • BaseLineColor As Int
      Get the color of the base line
    • BaseLinePaint As android.graphics.Paint
      Get the {@link Paint} used to draw the base line. Any modifications to this {@link Paint}
      will not reflect until the next call to {@link #invalidate()}
    • BaseLineWidth As Float
      Get the width in pixels of the base line's stroke
    • Color As Int [write only]
      
    • CornerRadius As Float
      Get the corner radius in pixels used when rounding the sparkline's segments.
    • Data As Float() [write only]
      
    • Enabled As Boolean
      
    • FillType As Int
      
    • FT_DOWN As Int [read only]
      
    • FT_NONE As Int [read only]
      
    • FT_TOWARD_ZERO As Int [read only]
      
    • FT_UP As Int [read only]
      
    • Height As Int
      
    • Left As Int
      
    • LineColor As Int
      Get the color of the sparkline
    • LineWidth As Float
      Get the width in pixels of the sparkline's stroke
    • Padding As Int()
      
    • Parent As Object [read only]
      
    • ScrubEnabled As Boolean
      Return true if scrubbing is enabled on this view
    • ScrubLineColor As Int
      Get the color of the scrub line
    • ScrubLinePaint As android.graphics.Paint
      Get the {@link Paint} used to draw the scrub line. Any custom modifications to this
      {@link Paint} will not reflect until the next call to {@link #invalidate()}
    • ScrubLineWidth As Float
      Get the width in pixels of the scrub line's stroke
    • SparkLinePaint As android.graphics.Paint
      Get the {@link Paint} used to draw the sparkline. Any modifications to this {@link Paint}
      will not reflect until the next call to {@link #invalidate()}
    • SparkLinePath As android.graphics.Path [read only]
      Gets a copy of the sparkline path
    • Tag As Object
      
    • Top As Int
      
    • Visible As Boolean
      
    • Width As Int

Please click here to donate for my work to write the wrapper (You can donate any amount you want )

 

[peacemaker]

Interesting... thanks.
Multilines possible ?
Or transparent background to combine several lines ?

 

[johndb]

Interesting... thanks.
Multilines possible ?
Or transparent background to combine several lines ?

Multilines are possible by overlaying many spark controls (one spark for each line) and setting the background color as transparent for each spark.

 

[Rantor777]

This lib have so many possibilities in a wide range of apps.. +10

 

[DonManfred]

You can donate $10, you also can donate much more if you want

 

[icakinser]

Is there a way this could run in b4j?

 

[DonManfred]

Is there a way this could run in b4j?

You can try it. If it crash then it does not work.

 

[icakinser]

You can try it. If it crash then it does not work.

It crashed. Will have to work on doing my own wrapping.