ChartFactory Analysis of android Chart Tool achartengine

To fully apply AChartEngine, you also need to check the source code. Only by knowing the operating principles can you draw charts suitable for your program.

Code:

Package org. achartengine; import org. achartengine. chart. barChart; import org. achartengine. chart. bubbleChart; import org. achartengine. chart. combinedXYChart; import org. achartengine. chart. cubicLineChart; import org. achartengine. chart. dialChart; import org. achartengine. chart. doughnutChart; import org. achartengine. chart. lineChart; import org. achartengine. chart. pieChart; import org. achartengine. chart. rangeBarCha Rt; import org. achartengine. chart. scatterChart; import org. achartengine. chart. timeChart; import org. achartengine. chart. XYChart; import org. achartengine. model. categorySeries; import org. achartengine. model. multipleCategorySeries; import org. achartengine. model. XYMultipleSeriesDataset; import org. achartengine. renderer. defaultRenderer; import org. achartengine. renderer. dialRenderer; import org. achartengine. rende Rer. XYMultipleSeriesRenderer; import android. content. context; import android. content. intent; public class ChartFactory // This is the factory class of AChartEngine {public static final String CHART = "chart"; public static final String TITLE = "title "; // --------------------- The following charts displayed in GraphicalView must be placed on the layout of some activities before they can be normally displayed --------------------- public static final GraphicalView getLineChartView (Context context, XYMultipl ESeriesDataset dataset, XYMultipleSeriesRenderer renderer) {// LineChart can draw column charts, line charts and other checkParameters (dataset, renderer); XYChart chart = new LineChart (dataset, renderer); return new GraphicalView context, chart);} public static final GraphicalView getCubeLineChartView (Context context, XYMultipleSeriesDataset dataset, extends renderer, float smoothness) {// This is a combination of linear graphs. You can customize the horizontal, vertical, and chec KParameters (dataset, renderer); XYChart chart = new CubicLineChart (dataset, renderer, smoothness); return new GraphicalView (context, chart);} public static final GraphicalView getScatterChartView (Context context Context, XYMultipleSeriesDataset, XYMultipleSeriesRenderer renderer) {// scatter chart checkParameters (dataset, renderer); XYChart chart = new ScatterChart (dataset, renderer); return new GraphicalVi Ew (context, chart);} public static final GraphicalView getBubbleChartView (Context context, XYMultipleSeriesDataset, XYMultipleSeriesRenderer renderer) {// foam map checkParameters (dataset, renderer ); XYChart chart = new BubbleChart (dataset, renderer); return new GraphicalView (context, chart);} public static final GraphicalView getTimeChartView (Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, String format) {// time distribution chart checkParameters (dataset, renderer); TimeChart chart = new TimeChart (dataset, renderer); chart. setDateFormat (format); return new GraphicalView (context, chart);} public static final GraphicalView getBarChartView (Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, BarChart. type type) {// bar chart checkParameters (da Taset, renderer); XYChart chart = new BarChart (dataset, renderer, type); return new GraphicalView (context, chart);} public static final GraphicalView getRangeBarChartView (Context context, XYMultipleSeriesDataset, XYMultipleSeriesRenderer renderer, BarChart. type type) {// region chart checkParameters (dataset, renderer); XYChart chart = new RangeBarChart (dataset, renderer, type); return new Graphical View (context, chart);} public static final GraphicalView getCombinedXYChartView (Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, String [] types) {// composite diagram, if (dataset = null) | (renderer = null) | (types = null) | (dataset. getSeriesCount ()! = Types. length) {throw new IllegalArgumentException ("Dataset, renderer and types shocould be not null and the datasets series count shocould be equal to the types length");} checkParameters (dataset, renderer); CombinedXYChart chart = new CombinedXYChart (dataset, renderer, types); return new GraphicalView (context, chart);} public static final GraphicalView getPieChartView (Context context, CategorySe Ries dataset, DefaultRenderer renderer) {// pie chart checkParameters (dataset, renderer); PieChart chart = new PieChart (dataset, renderer); return new GraphicalView (context, chart );} public static final GraphicalView getDialChartView (Context context, CategorySeries dataset, DialRenderer renderer) {// The checkParameters (dataset, renderer) of a table chart like a car speedometer ); dialChart chart = new DialChart (dataset, renderer); ret Urn new GraphicalView (context, chart);} public static final GraphicalView getDoughnutChartView (Context context, MultipleCategorySeries dataset, DefaultRenderer renderer) {// circle graph checkParameters (dataset, renderer ); doughnutChart chart = new DoughnutChart (dataset, renderer); return new GraphicalView (context, chart);} // ------------------- The following are Intent (Intent) the displayed chart can be normally displayed without being pinned in the Activity --------------- -------- Public static final Intent getLineChartIntent (Context context, XYMultipleSeriesDataset, XYMultipleSeriesRenderer renderer) {return getLineChartIntent (context, dataset, renderer, "");} public static final Intent publish (Context context Context, XYMultipleSeriesDataset, XYMultipleSeriesRenderer renderer, float smoothness) {return getCubicLineChartIntent (context, d Ataset, renderer, smoothness, "");} public static final Intent attributes (Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer) {return transform (context, dataset, renderer, "");} public static final Intent getBubbleChartIntent (Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer) {return getBubbleChartIntent (Context, dataset, renderer, "");} public static final Intent getTimeChartIntent (Context context, XYMultipleSeriesDataset dataset, extends renderer, String format) {return getTimeChartIntent (context, dataset, renderer, format, "");} public static final Intent getBarChartIntent (Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, BarChart. type type) {Return getBarChartIntent (context, dataset, renderer, type, "");} public static final Intent getLineChartIntent (Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, String activityTitle) {checkParameters (dataset, renderer); Intent intent = new Intent (context, GraphicalActivity. class); XYChart chart = new LineChart (dataset, renderer); intent. putExtra ("chart", ch Art); intent. putExtra ("title", activityTitle); return intent;} public static final Intent values (Context context, XYMultipleSeriesDataset dataset, extends renderer, float smoothness, String activityTitle) {checkParameters (dataset, renderer); Intent intent = new Intent (context, GraphicalActivity. class); XYChart chart = new CubicLineChart (dataset, renderer, smooth Ness); intent. putExtra ("chart", chart); intent. putExtra ("title", activityTitle); return intent;} public static final Intent values (Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, String activityTitle) {checkParameters (dataset, renderer ); intent intent = new Intent (context, GraphicalActivity. class); XYChart chart = new ScatterChart (dataset, rend Erer); intent. putExtra ("chart", chart); intent. putExtra ("title", activityTitle); return intent;} public static final Intent values (Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, String activityTitle) {checkParameters (dataset, renderer ); intent intent = new Intent (context, GraphicalActivity. class); XYChart chart = new BubbleChart (dataset, render Er); intent. putExtra ("chart", chart); intent. putExtra ("title", activityTitle); return intent;} public static final Intent getTimeChartIntent (Context context, XYMultipleSeriesDataset dataset, extends renderer, String format, String activityTitle) {checkParameters (dataset, renderer); Intent intent = new Intent (context, GraphicalActivity. class); TimeChart chart = new TimeChart (data Set, renderer); chart. setDateFormat (format); intent. putExtra ("chart", chart); intent. putExtra ("title", activityTitle); return intent;} public static final Intent getBarChartIntent (Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, BarChart. type type, String activityTitle) {checkParameters (dataset, renderer); Intent intent = new Intent (context, GraphicalActivity. Class); BarChart chart = new BarChart (dataset, renderer, type); intent. putExtra ("chart", chart); intent. putExtra ("title", activityTitle); return intent;} public static final Intent getRangeBarChartIntent (Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, BarChart. type type, String activityTitle) {checkParameters (dataset, renderer); Intent intent = new Intent (con Text, GraphicalActivity. class); RangeBarChart chart = new RangeBarChart (dataset, renderer, type); intent. putExtra ("chart", chart); intent. putExtra ("title", activityTitle); return intent;} public static final Intent getCombinedXYChartIntent (Context context, XYMultipleSeriesDataset, XYMultipleSeriesRenderer renderer, String [] types, String activityTitle) {if (dataset = null) | (renderer = Null) | (types = null) | (dataset. getSeriesCount ()! = Types. length) {throw new IllegalArgumentException ("Datasets, renderers and types shocould be not null and the datasets series count shocould be equal to the types length");} checkParameters (dataset, renderer); Intent intent = new Intent (context, GraphicalActivity. class); CombinedXYChart chart = new CombinedXYChart (dataset, renderer, types); intent. putExtra ("chart", chart); intent. putExtra ("title ", ActivityTitle); return intent;} public static final Intent getPieChartIntent (Context context, CategorySeries dataset, DefaultRenderer renderer, String activityTitle) {checkParameters (dataset, renderer ); intent intent = new Intent (context, GraphicalActivity. class); PieChart chart = new PieChart (dataset, renderer); intent. putExtra ("chart", chart); intent. putExtra ("title", activityTitle); return I Ntent;} public static final Intent events (Context context, MultipleCategorySeries dataset, DefaultRenderer renderer, String activityTitle) {checkParameters (dataset, renderer); Intent intent = new Intent (context, GraphicalActivity. class); DoughnutChart chart = new DoughnutChart (dataset, renderer); intent. putExtra ("chart", chart); intent. putExtra ("title", activityTitle); return int Ent;} public static final Intent getDialChartIntent (Context context, CategorySeries dataset, DialRenderer renderer, String activityTitle) {checkParameters (dataset, renderer); Intent intent = new Intent (context, GraphicalActivity. class); DialChart chart = new DialChart (dataset, renderer); intent. putExtra ("chart", chart); intent. putExtra ("title", activityTitle); return intent;} private static voi D checkParameters (XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer) {if (dataset = null) | (renderer = null) | (dataset. getSeriesCount ()! = Renderer. getSeriesRendererCount () {throw new IllegalArgumentException ("Dataset and renderer shocould be not null and shocould have the same number of series");} private static void checkParameters (CategorySeries dataset, defaultRenderer renderer) {if (dataset = null) | (renderer = null) | (dataset. getItemCount ()! = Renderer. getSeriesRendererCount () {throw new IllegalArgumentException ("Dataset and renderer shocould be not null and the dataset number of items shocould be equal to the number of series renderers ");}} private static void checkParameters (MultipleCategorySeries dataset, DefaultRenderer renderer) {if (dataset = null) | (renderer = null) | (! CheckMultipleSeriesItems (dataset, renderer. getSeriesRendererCount () {throw new IllegalArgumentException ("Titles and values shocould be not null and the dataset number of items shocould be equal to the number of series renderers ");}} private static boolean checkMultipleSeriesItems (MultipleCategorySeries dataset, int value) {int count = dataset. getCategoriesCount (); boolean equal = true; for (int k = 0; (k <count) & (equal); k ++) {equal = dataset. getValues (k ). length = dataset. getTitles (k ). length ;}return equal ;}}