Android图表类库：WilliamChart

jopen 10年前

WilliamChart是基于Views的Android图表类库，帮助开发者在Android应用中实现折线图、柱状图和堆叠柱状图。数值发生变化时图表也会以动画的效果发生变化。

At the moment it provides:

  • LineChartView

Demo Screenshot1

  • BarChartView

Demo Screenshot2

  • StackBarChartView

Demo Screenshot3

使用说明：
创建一个新的chart需要继承自ChartView的坐标轴，同时实现一些必要的方法。我觉的这些方法足以让你绘制出任何你想要的效果。
xml文件 

<com.db.chart.view.ChartView         xmlns:chart="http://schemas.android.com/apk/res-auto"         android:layout_width="match_parent"         android:layout_height="dp"         ...         chart:chart_shadowDx="dp"         chart:chart_shadowDy="dp"         chart:chart_shadowRadius="dp"         chart:chart_shadowColor="color"         chart:chart_fontSize="dp"         chart:chart_typeface="typeface"         chart:chart_axisBorderSpacing="dp"         chart:chart_axisThickness="dp"         chart:chart_axisTopSpacing="dp"         chart:chart_axisColor="color"         chart:chart_axisX="boolean"         chart:chart_label="boolean"         chart:chart_labelColor="color"     />
// Customize labels     chart.setLabels(NONE/OUTSIDE/INSIDE)     chart.setLabelColor(color)     chart.setFontSize(integer)     chart.setTypeface(typeface)     // Define grid     chart.setGrid(paint)     chart.setHorizontalGrid(paint)     chart.setVerticalGrid(paint)     // Show threshold line     chart.setThresholdLine(float, paint)     chart.setMaxAxisValue(integer, integer)     chart.setStep(integer)     chart.setTopSpacing(dimen)     chart.setBorderSpacing(dimen)     chart.setAxisX(boolean)     chart.show()     // Update values of a given set     chart.updateValues(int, array)     // Notify chart about updated values     chart.notifyDataUpdate()     // Tooltip support     chart.showTooltip(view)     chart.dismissTooltip(view)

LineChart（跟上面相同的部分用省略号） 

<com.db.chart.LineChartView   ...   />
java代码： 

LineChartView chartView= new LineChartView()   LineSet lineSet = new LineSet()   lineSet.addPoint(new Point(string, float)   // Style dots   lineSet.setDots(boolean)   lineSet.setDotsColor(color)   lineSet.setDotsRadius(dimen)   lineSet.setDotsStrokeThickness(dimen)   lineSet.setDotsStrokeColor(color)   // Style line   lineSet.setLineThickness(dimen)   lineSet.setLineColor(color)   // Style background fill   lineSet.setFill(boolean)   lineSet.setFillColor(color)   // Style type   lineSet.setDashed(boolean)   lineSet.setSmooth(boolean)   chartView.addData(lineSet)

BarChart & StackBarChart 

<com.db.chart.BarChartView   ...   chart:chart_barSpacing="dp"   chart:chart_setSpacing="dp"   />

java代码 

BarChartView chartView = new BarcChartView()   barChart.setBarSpacing(dimen)   barChart.setSetSpacing(dimen)   barChart.setBarBackground(boolean)   barChart.setBarBackgroundColor(color)   barChart.setRoundCorners(dimen)   BarSet barSet = new BarSet()   Bar bar = new Bar(string, float)   bar.setColor(color)   barSet.addBar(bar)   chartView.addData(barSet)

Listener的设置 

chart.setOnEntryClickListener(new OnEntryClickListener(){       @Override       public void onClick(int setIndex, int entryIndex, Rect entryRect) {           //Do things       }   });

动画 

Animation anim = new Animation()   anim.setDuration(integer)   anim.setEasing(easingFunction)   anim.setEndAction(runnable)   // Animation overlap between entries   anim.setOverlap(float)   // Animation starting point   anim.setStartPoint(float, float)   // Include alpha transition   anim.setAlpha(int)   // Starts animation   chart.animate(animation)

项目主页：http://www.open-open.com/lib/view/home/1413855326965