Android报表控件achartengine介绍(二)
Android报achartengine再详细的介绍可以查看
?http://blog.csdn.net/lk_blog/article/details/7642751
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在achartengine中两种创建报表的方式
?1，是在Activity中直接创建
?2?? 是在Activity的view控件中创建（这种方式更灵活），使用achartengine中GraphicalView控件可以响应点击事件和动态数据的更新。现在只介绍在GraphicalView中创建响应点击事件
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package com.sinosoft.chartdemo;import java.util.ArrayList;import java.util.List;import java.util.Random;import org.achartengine.ChartFactory;import org.achartengine.GraphicalView;import org.achartengine.chart.PointStyle;import org.achartengine.model.SeriesSelection;import org.achartengine.model.XYMultipleSeriesDataset;import org.achartengine.model.XYSeries;import org.achartengine.renderer.XYMultipleSeriesRenderer;import org.achartengine.renderer.XYSeriesRenderer;import org.achartengine.tools.PanListener;import org.achartengine.tools.ZoomEvent;import org.achartengine.tools.ZoomListener;import android.app.Activity;import android.graphics.Color;import android.graphics.Paint.Align;import android.os.Bundle;import android.util.Log;import android.view.View;import android.view.ViewGroup.LayoutParams;import android.widget.LinearLayout;import android.widget.Toast;/** * 嵌入Acitivity中的折线图 * * @author jianfan * */public class LineChartActivity extends BasicActivity {private XYMultipleSeriesDataset mDataset;private XYMultipleSeriesRenderer mRenderer;private XYSeries mCurrentSeries;private XYSeriesRenderer mCurrentRenderer;private GraphicalView mChartView;@Overrideprotected void onCreate(Bundle savedInstanceState) {Log.i("onCreate", "onCreate");super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);Init();}/******** * 初始化数据DataSet和Renderer *****/private void Init() {InitRenderer();InitDataSet();}/*********** * 初始化 XYMultipleSeriesRenderer **********/private void InitRenderer() {// 每个序列的颜色设置int[] colors = new int[] { Color.BLUE, Color.GREEN, Color.CYAN, Color.YELLOW };// 每个序列中点的形状设置PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE, PointStyle.DIAMOND, PointStyle.TRIANGLE, PointStyle.SQUARE };// 调用AbstractChart中的方法设置renderer.// 设置线条的颜色和点的形状mRenderer = buildRenderer(colors, styles);int length = mRenderer.getSeriesRendererCount();// 设置图上线上的点为实心for (int i = 0; i < length; i++) {((XYSeriesRenderer) mRenderer.getSeriesRendererAt(i)).setFillPoints(true);}// 调用AbstractChart中的方法设置图表的renderer属性.setChartSettings(mRenderer, "平均温度", "月份", "温度", 0.5, 12.5, -10, 40, Color.LTGRAY, Color.LTGRAY);// 设置x轴显示12个点,根据setChartSettings的最大值和最小值自动计算点的间隔mRenderer.setXLabels(12);// 设置y轴显示10个点,根据setChartSettings的最大值和最小值自动计算点的间隔mRenderer.setYLabels(10);mRenderer.setBackgroundColor(Color.BLACK);// 设置背景颜色mRenderer.setApplyBackgroundColor(true); // 使背景色生效mRenderer.setShowGrid(true);// 是否显示网格mRenderer.setXLabelsAlign(Align.RIGHT);// 刻度线与刻度标注之间的相对位置关系mRenderer.setYLabelsAlign(Align.RIGHT);// 刻度线与刻度标注之间的相对位置关系mRenderer.setZoomButtonsVisible(true);// 是否显示放大缩小按钮mRenderer.setPanLimits(new double[] { -10, 20, -10, 40 }); // 设置拖动时X轴Y轴允许的最大值最小值.mRenderer.setZoomLimits(new double[] { -10, 20, -10, 40 });// 设置放大缩小时X轴Y轴允许的最大最小值.}/*********** * 初始化 XYMultipleSeriesDataset **********/private void InitDataSet() {// 图例String[] titles = new String[] { "克里特岛", "科孚岛", "萨索斯岛", "斯基亚索斯岛" };// 每个序列中点的X坐标List<double[]> x = new ArrayList<double[]>();for (int i = 0; i < titles.length; i++) {x.add(new double[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 });}// titles数组中每个标识物对应的线条List<double[]> values = new ArrayList<double[]>();// 克里特岛的点的y坐标values.add(new double[] { 12.3, 12.5, 13.8, 16.8, 20.4, 24.4, 26.4, 26.1, 23.6, 20.3, 17.2, 13.9 });// 科孚岛的点的y坐标values.add(new double[] { 10, 10, 12, 15, 20, 24, 26, 26, 23, 18, 14, 11 });// 萨索斯岛的点的y坐标values.add(new double[] { 5, 5.3, 8, 12, 17, 22, 24.2, 24, 19, 15, 9, 6 });// 斯基亚索斯岛的点的y坐标values.add(new double[] { 9, 10, 11, 15, 19, 23, 26, 25, 22, 18, 13, 10 });mDataset = buildDataset(titles, x, values);}/********************* * 当Activity失去焦点的时候用来保存数据的方法 */@Overrideprotected void onSaveInstanceState(Bundle outState) {Log.i("onSaveInstanceState", "onSaveInstanceState");super.onSaveInstanceState(outState);outState.putSerializable("dataset", mDataset);outState.putSerializable("renderer", mRenderer);outState.putSerializable("current_series", mCurrentSeries);outState.putSerializable("current_renderer", mCurrentRenderer);}/********************* * 当Activity重新获取焦点的时，取回之前保存的数据 */@Overrideprotected void onRestoreInstanceState(Bundle savedInstanceState) {Log.i("onRestoreInstanceState", "onRestoreInstanceState");super.onRestoreInstanceState(savedInstanceState);mDataset = (XYMultipleSeriesDataset) savedInstanceState.getSerializable("dataset");mRenderer = (XYMultipleSeriesRenderer) savedInstanceState.getSerializable("renderer");mCurrentSeries = (XYSeries) savedInstanceState.getSerializable("current_series");mCurrentRenderer = (XYSeriesRenderer) savedInstanceState.getSerializable("current_renderer");}@Overrideprotected void onResume() {Log.i("onResume", "onResume");super.onResume();if (mChartView == null) {LinearLayout layout = (LinearLayout) findViewById(R.id.chart);mChartView = ChartFactory.getLineChartView(this, mDataset, mRenderer);mRenderer.setClickEnabled(true);// 设置图表是否允许点击// 设置点的缓冲半径值(在某点附件点击时,多大范围内都算点击这个点)mRenderer.setSelectableBuffer(10);mChartView.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// 这段代码处理点击一个点后,获得所点击的点在哪个序列中以及点的坐标.// -->startSeriesSelection seriesSelection = mChartView.getCurrentSeriesAndPoint();double[] xy = mChartView.toRealPoint(0);if (seriesSelection == null) {Toast.makeText(LineChartActivity.this, "没有图表元素被点击", Toast.LENGTH_SHORT).show();} else {Toast.makeText(LineChartActivity.this, "图表元素系列指数 " + seriesSelection.getSeriesIndex() + " 数据点指数 " + seriesSelection.getPointIndex() + " 被点击了" + " 最近点值X=" + seriesSelection.getXValue() + ", 最近点值Y=" + seriesSelection.getValue() + " 点击点值X=" + (float) xy[0] + ", 点击点值Y=" + (float) xy[1], Toast.LENGTH_SHORT).show();}}// -->end});mChartView.setOnLongClickListener(new View.OnLongClickListener() {@Overridepublic boolean onLongClick(View v) {SeriesSelection seriesSelection = mChartView.getCurrentSeriesAndPoint();if (seriesSelection == null) {Toast.makeText(LineChartActivity.this, "No chart element was long pressed", Toast.LENGTH_SHORT);return false; // no chart element was long pressed, so// let something// else handle the event} else {Toast.makeText(LineChartActivity.this, "Chart element in series index " + seriesSelection.getSeriesIndex() + " data point index " + seriesSelection.getPointIndex() + " was long pressed", Toast.LENGTH_SHORT);return true; // the element was long pressed - the event// has been// handled}}});// 这段代码处理放大缩小// -->startmChartView.addZoomListener(new ZoomListener() {public void zoomApplied(ZoomEvent e) {String type = "out";if (e.isZoomIn()) {type = "in";}System.out.println("Zoom " + type + " rate " + e.getZoomRate());}public void zoomReset() {System.out.println("Reset");}}, true, true);// -->end// 设置拖动图表时后台打印出图表坐标的最大最小值.mChartView.addPanListener(new PanListener() {public void panApplied() {System.out.println("New X range=[" + mRenderer.getXAxisMin() + ", " + mRenderer.getXAxisMax() + "], Y range=[" + mRenderer.getYAxisMax() + ", " + mRenderer.getYAxisMax() + "]");}});layout.addView(mChartView, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));boolean enabled = mDataset.getSeriesCount() > 0;} else {mChartView.repaint();}}}?
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