Android chart control, there are code samples and very easy to use, has a variety of charts

GraphView-master
................\.gitignore
................\GVBar.png
................\GVLine.jpg
................\README.markdown
................\build.gradle
................\gradle.properties
................\gradle
................\......\wrapper
................\......\.......\gradle-wrapper.jar
................\......\.......\gradle-wrapper.properties
................\gradlew
................\gradlew.bat
................\license.txt
................\maven_push.gradle
................\proguard-rules.txt
................\public
................\......\GraphView-3.1.1.jar
................\......\GraphView-3.1.2.jar
................\......\GraphView-3.1.3.jar
................\......\GraphView-3.1.4.jar
................\......\GraphView-4.0.0.jar
................\......\graphview-3.1.jar
................\src
................\...\main
................\...\....\AndroidManifest.xml
................\...\....\java
................\...\....\....\com
................\...\....\....\...\jjoe64
................\...\....\....\...\......\graphview
................\...\....\....\...\......\.........\DefaultLabelFormatter.java
................\...\....\....\...\......\.........\GraphView.java
................\...\....\....\...\......\.........\GridLabelRenderer.java
................\...\....\....\...\......\.........\LabelFormatter.java
................\...\....\....\...\......\.........\LegendRenderer.java
................\...\....\....\...\......\.........\SecondScale.java
................\...\....\....\...\......\.........\ValueDependentColor.java
................\...\....\....\...\......\.........\Viewport.java
................\...\....\....\...\......\.........\compat
................\...\....\....\...\......\.........\......\OverScrollerCompat.java
................\...\....\....\...\......\.........\helper
................\...\....\....\...\......\.........\......\DateAsXAxisLabelFormatter.java
................\...\....\....\...\......\.........\......\GraphViewXML.java
................\...\....\....\...\......\.........\......\StaticLabelsFormatter.java
................\...\....\....\...\......\.........\series
................\...\....\....\...\......\.........\......\BarGraphSeries.java
................\...\....\....\...\......\.........\......\BaseSeries.java
................\...\....\....\...\......\.........\......\DataPoint.java
................\...\....\....\...\......\.........\......\DataPointInterface.java
................\...\....\....\...\......\.........\......\LineGraphSeries.java
................\...\....\....\...\......\.........\......\OnDataPointTapListener.java
................\...\....\....\...\......\.........\......\PointsGraphSeries.java
................\...\....\....\...\......\.........\......\Series.java
................\...\....\res
................\...\....\...\values
................\...\....\...\......\attr.xml

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