ChartView

Simple ChartView for Android.

Installation

In your root build.gradle file add this:

repositories{
    maven { url 'https://jitpack.io' }
}

To your app module add dependency:

implementation 'com.github.JakubNeukirch:ChartView:0.5.7'

Usage

Usage is shown in app/src/main/java/pl/kuben/chart/MainActivity

To use it simply add PeriodicChartView to your xml. Available attributes:

name	type	description
valueText	String	identifier at the top of chart - default "val."
dateText	String	identifier for date - default "date"
showText	Boolean	defines if text should be shown, mostly used when chart is small - default "true"
progressColor	@IntColor Int	defines value line color - default "blue"
progressBackgroundColor	@IntColor Int	defines background color - default "greyish"
chartPadding	Int	defines padding of drawed chart - default "10px"
dateInterval	Enum	defines how entries should be grouped - available "day", "week", "month" - default "day"

Also available variables:

name	type	description
fromDate	Long	timestamp date which limits range of values
toDate	Long	timestamp date which limits range of values

To add values you need to insert list of Entry which has two field:

name	type	description
count	Int	the value which it contains
date	Long	timestamp of adding it

Inserting values:

        chart.entries = listOf(
                Entry(2, System.currentTimeMillis()),
                Entry(4, System.currentTimeMillis() + 1000 * 60 * 60 * 24),
                Entry(5, System.currentTimeMillis() + 1000 * 60 * 60 * 24 * 2),
                Entry(1, System.currentTimeMillis() + 1000 * 60 * 60 * 24 * 3)
        )

Finally entries are summed up and sorted so it does not need to be sorted or added in any special order.

Site

www.jakubneukirch.pl

Changelog

0.5.2

Changed access modifiers for groupBy and groupedEntries

0.5.3

Added progressBackgroundColor Improved appearance

0.5.4

Fixed progressBackgroundColor

0.5.5

Fixed positioning

0.5.6

[WIP] Add tendentious field which indicates whether should be shown as trends or or not. (for now just hour trends)

0.5.7

Add sorting by hour when tendencies are ON. Add possibility to change count of points on chart