android achartengine 生成柱狀圖(支援修改背景)
阿新 • • 發佈：2019-02-19
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#ffffffff" android:orientation="vertical" > <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" > <LinearLayout android:layout_width="0dip" android:layout_height="wrap_content" android:layout_weight="1" > <Button android:id="@+id/single_view_btn" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="單圖" /> </LinearLayout> <LinearLayout android:layout_width="0dip" android:layout_height="wrap_content" android:layout_weight="1" > <Button android:id="@+id/double_view_btn" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="雙圖" /> </LinearLayout> </LinearLayout> <LinearLayout android:id="@+id/barview_content" android:layout_width="fill_parent" android:layout_height="fill_parent" > </LinearLayout> </LinearLayout>
package cn.knight.barchart; import java.util.ArrayList; import java.util.List; import org.achartengine.model.CategorySeries; import org.achartengine.model.XYMultipleSeriesDataset; import org.achartengine.renderer.SimpleSeriesRenderer; import org.achartengine.renderer.XYMultipleSeriesRenderer; import android.app.Activity; import android.graphics.Color; import android.os.Bundle; import android.support.v4.view.ViewPager.LayoutParams; import android.view.KeyEvent; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.LinearLayout; import android.widget.TextView; public class Main extends Activity implements OnClickListener { public static String LABLE_TEXT[] = { "", "A", "B", "C", "D" }; private LinearLayout layoutViewContent; private Button btn_single; private Button btn_total; private double first[] = new double[] { 30, 40, 60, 80 }; private double second[] = new double[] { 50, 60, 88, 91 }; private List<String> options = new ArrayList<String>(); private boolean isSingleView; private BarChartView view; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); isSingleView = false; for (String tem : LABLE_TEXT) { options.add(tem); } layoutViewContent = (LinearLayout) findViewById(R.id.barview_content); view = new BarChartView(Main.this, isSingleView); view.initData(first, second, options, "雙柱狀圖"); layoutViewContent.setBackgroundColor(0xffffffff); layoutViewContent.addView(view.getBarChartView()); btn_single = (Button) findViewById(R.id.single_view_btn); btn_total = (Button) findViewById(R.id.double_view_btn); btn_single.setOnClickListener(this); btn_total.setOnClickListener(this); } @Override public void onClick(View v) { int id = v.getId(); switch (id) { case R.id.single_view_btn: isSingleView = true; layoutViewContent.removeAllViews(); view = new BarChartView(Main.this, isSingleView); view.initData(first, second, options, "單柱狀圖"); layoutViewContent.addView(view.getBarChartView()); break; case R.id.double_view_btn: isSingleView = false; layoutViewContent.removeAllViews(); view = new BarChartView(Main.this, isSingleView); view.initData(first, second, options, "雙柱狀圖"); layoutViewContent.addView(view.getBarChartView()); break; } } }
package cn.knight.barchart; import java.util.ArrayList; import java.util.List; import org.achartengine.ChartFactory; import org.achartengine.chart.BarChart.Type; import org.achartengine.model.CategorySeries; import org.achartengine.model.XYMultipleSeriesDataset; import org.achartengine.renderer.SimpleSeriesRenderer; import org.achartengine.renderer.XYMultipleSeriesRenderer; import android.content.Context; import android.graphics.Color; import android.graphics.Paint.Align; import android.view.View; public class BarChartView { private static int margins[] = new int[] { 70, 70, 70, 70 }; private static String[] titles = new String[] { "", "" }; private List<double[]> values = new ArrayList<double[]>(); private static int[] colors = new int[] { Color.RED, Color.GREEN }; private XYMultipleSeriesRenderer renderer; private Context mContext; private String mTitle; private List<String> option; private boolean isSingleView = false; public BarChartView(Context context, boolean isSingleView) { this.mContext = context; this.isSingleView = isSingleView; this.renderer = new XYMultipleSeriesRenderer(); } public void initData(double[] firstAnswerPercent, double[] lastAnswerPercent, List<String> option, String title) { this.values.add(firstAnswerPercent); if (!isSingleView) { this.values.add(lastAnswerPercent); } this.mTitle = title; this.option = option; } public View getBarChartView() { buildBarRenderer(); setChartSettings(renderer, mTitle, "", "", 0, 6, 0, 100, Color.BLACK, Color.LTGRAY); renderer.getSeriesRendererAt(0).setDisplayChartValues(true); if(!isSingleView){ renderer.getSeriesRendererAt(1).setDisplayChartValues(true); } int size = option.size(); for (int i = 0; i < size; i++) { renderer.addXTextLabel(i, option.get(i)); } renderer.setMargins(margins); renderer.setMarginsColor(0x00ffffff); renderer.setPanEnabled(false, false); renderer.setZoomEnabled(false, false);// 設定x，y方向都不可以放大或縮�? renderer.setZoomRate(1.0f); renderer.setInScroll(false); renderer.setBackgroundColor(0x00ffffff); renderer.setApplyBackgroundColor(false); View view = ChartFactory.getBarChartView(mContext, buildBarDataset(titles, values), renderer, Type.DEFAULT); // Type.STACKED view.setBackgroundColor(0x00ffffff); return view; } private XYMultipleSeriesDataset buildBarDataset(String[] titles, List<double[]> values) { XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset(); int length = isSingleView ? (titles.length - 1) : titles.length; for (int i = 0; i < length; i++) { CategorySeries series = new CategorySeries(titles[i]); double[] v = values.get(i); int seriesLength = v.length; for (int k = 0; k < seriesLength; k++) { series.add(v[k]); } dataset.addSeries(series.toXYSeries()); } return dataset; } protected void setChartSettings(XYMultipleSeriesRenderer renderer, String title, String xTitle, String yTitle, double xMin, double xMax, double yMin, double yMax, int axesColor, int labelsColor) { renderer.setChartTitle(title); renderer.setXTitle(xTitle); renderer.setYTitle(yTitle); renderer.setXAxisMin(xMin); renderer.setXAxisMax(xMax); renderer.setYAxisMin(yMin); renderer.setYAxisMax(yMax); renderer.setAxesColor(axesColor); renderer.setLabelsColor(labelsColor); renderer.setXLabels(0); renderer.setYLabels(10); renderer.setLabelsTextSize(25); renderer.setYLabelsAlign(Align.RIGHT); renderer.setXLabelsAlign(Align.CENTER); // renderer.setXLabelsColor(0xff000000);//設定X軸上的字型顏�? // renderer.setYLabelsColor(0,0xff000000);//設定Y軸上的字型顏�? } /* * 初始化柱子風�? */ protected void buildBarRenderer() { if (null == renderer) { return; } renderer.setBarWidth(23); renderer.setBarSpacing(20); renderer.setAxisTitleTextSize(16); renderer.setChartTitleTextSize(20); renderer.setLabelsTextSize(15); renderer.setLegendTextSize(15); int length = isSingleView ? (colors.length - 1) : colors.length; for (int i = 0; i < length; i++) { SimpleSeriesRenderer ssr = new SimpleSeriesRenderer(); ssr.setChartValuesTextAlign(Align.RIGHT); ssr.setChartValuesTextSize(15); ssr.setDisplayChartValues(true); ssr.setColor(colors[i]); renderer.addSeriesRenderer(ssr); } } }
