編輯:關於Android編程
要充分應用AChartEngine還需要查看源碼,只有從本質上知道這些運作原理才能畫出適合自己程序的圖表
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.RangeBarChart; 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.renderer.XYMultipleSeriesRenderer; import android.content.Context; import android.content.Intent; public class ChartFactory//這個是AChartEngine的工廠類 { public static final String CHART = "chart"; public static final String TITLE = "title"; //---------------------以下這些是用GraphicalView顯示的圖表 需要寄托在一些Activity的布局上才能正常顯示----------------------- public static final GraphicalView getLineChartView(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer) {//LineChart可以畫柱形圖,折線圖等 checkParameters(dataset, renderer); XYChart chart = new LineChart(dataset, renderer); return new GraphicalView(context, chart); } public static final GraphicalView getCubeLineChartView(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, float smoothness) {//這個是組合的線性圖,可以自定義橫軸,縱軸, checkParameters(dataset, renderer); XYChart chart = new CubicLineChart(dataset, renderer, smoothness); return new GraphicalView(context, chart); } public static final GraphicalView getScatterChartView(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer) {//散點圖 checkParameters(dataset, renderer); XYChart chart = new ScatterChart(dataset, renderer); return new GraphicalView(context, chart); } public static final GraphicalView getBubbleChartView(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer) {//泡沫圖 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) {//時間分布圖 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) {//柱狀圖 checkParameters(dataset, renderer); XYChart chart = new BarChart(dataset, renderer, type); return new GraphicalView(context, chart); } public static final GraphicalView getRangeBarChartView(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, BarChart.Type type) {//區域圖 checkParameters(dataset, renderer); XYChart chart = new RangeBarChart(dataset, renderer, type); return new GraphicalView(context, chart); } public static final GraphicalView getCombinedXYChartView(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, String[] types) {//組合圖,可以讓柱狀圖+折線圖+曲線+泡沫圖融為一體 if ((dataset == null) || (renderer == null) || (types == null) || (dataset.getSeriesCount() != types.length)) { throw new IllegalArgumentException("Dataset, renderer and types should be not null and the datasets series count should 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, CategorySeries dataset, DefaultRenderer renderer) {//餅圖 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) {//刻表圖 像汽車速度表那樣的圖 checkParameters(dataset, renderer); DialChart chart = new DialChart(dataset, renderer); return new GraphicalView(context, chart); } public static final GraphicalView getDoughnutChartView(Context context, MultipleCategorySeries dataset, DefaultRenderer renderer) {//圓圈圖 checkParameters(dataset, renderer); DoughnutChart chart = new DoughnutChart(dataset, renderer); return new GraphicalView(context, chart); } //---------------------以下這些是用Intent(意圖)顯示的圖表 可以不用寄托在Activity中也能正常顯示----------------------- public static final Intent getLineChartIntent(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer) { return getLineChartIntent(context, dataset, renderer, ""); } public static final Intent getCubicLineChartIntent(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, float smoothness) { return getCubicLineChartIntent(context, dataset, renderer, smoothness, ""); } public static final Intent getScatterChartIntent(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer) { return getScatterChartIntent(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, XYMultipleSeriesRenderer 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", chart); intent.putExtra("title", activityTitle); return intent; } public static final Intent getCubicLineChartIntent(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, float smoothness, String activityTitle) { checkParameters(dataset, renderer); Intent intent = new Intent(context, GraphicalActivity.class); XYChart chart = new CubicLineChart(dataset, renderer, smoothness); intent.putExtra("chart", chart); intent.putExtra("title", activityTitle); return intent; } public static final Intent getScatterChartIntent(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, String activityTitle) { checkParameters(dataset, renderer); Intent intent = new Intent(context, GraphicalActivity.class); XYChart chart = new ScatterChart(dataset, renderer); intent.putExtra("chart", chart); intent.putExtra("title", activityTitle); return intent; } public static final Intent getBubbleChartIntent(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, String activityTitle) { checkParameters(dataset, renderer); Intent intent = new Intent(context, GraphicalActivity.class); XYChart chart = new BubbleChart(dataset, renderer); intent.putExtra("chart", chart); intent.putExtra("title", activityTitle); return intent; } public static final Intent getTimeChartIntent(Context context, XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, String format, String activityTitle) { checkParameters(dataset, renderer); Intent intent = new Intent(context, GraphicalActivity.class); TimeChart chart = new TimeChart(dataset, 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(context, 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 dataset, XYMultipleSeriesRenderer renderer, String[] types, String activityTitle) { if ((dataset == null) || (renderer == null) || (types == null) || (dataset.getSeriesCount() != types.length)) { throw new IllegalArgumentException("Datasets, renderers and types should be not null and the datasets series count should 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 intent; } public static final Intent getDoughnutChartIntent(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 intent; } 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 void checkParameters(XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer) { if ((dataset == null) || (renderer == null) || (dataset.getSeriesCount() != renderer.getSeriesRendererCount())) { throw new IllegalArgumentException("Dataset and renderer should be not null and should 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 should be not null and the dataset number of items should 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 should be not null and the dataset number of items should 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; } }
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