Question

我正在搜索Android条形图/带有x和y轴的图形，其中y轴将是值。在图表中，我只需要显示4个值。我发现了许多样本，但不是简单的样本，在条形图中显示4个值。谁能建议我简单条形图的例子... x，y轴。我正在搜索类似下面的图像

bar chart http://www.wekaleamstudios.co.uk/wp-content/uploads/2009/12/barchart-lattice1.jpeg

Answer 1

试试吧！ MainActivity.java

import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
import java.util.ArrayList;
import java.util.Random;

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.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.Paint.Align;
import android.view.Menu;
public class MainActivity extends Activity {
    private static final int SERIES_NR = 2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        XYMultipleSeriesRenderer renderer = getTruitonBarRenderer();
        myChartSettings(renderer);
        Intent intent = ChartFactory.getBarChartIntent(this, getTruitonBarDataset(), renderer, Type.DEFAULT);
        startActivity(intent);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    private XYMultipleSeriesDataset getTruitonBarDataset() {
        XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
        final int nr = 4;
        Random r = new Random();
        ArrayList<String> legendTitles = new ArrayList<String>();
        legendTitles.add("Sales");
        legendTitles.add("Expenses");
        for (int i = 0; i < SERIES_NR; i++) {
            CategorySeries series = new CategorySeries(legendTitles.get(i));
            for (int k = 0; k < nr; k++) {
                series.add(100 + r.nextInt() % 100);
            }
            dataset.addSeries(series.toXYSeries());
        }
        return dataset;
    }

    public XYMultipleSeriesRenderer getTruitonBarRenderer() {
        XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
        renderer.setAxisTitleTextSize(16);
        renderer.setChartTitleTextSize(20);
        renderer.setLabelsTextSize(15);
        renderer.setLegendTextSize(15);
        renderer.setMargins(new int[] { 30, 40, 15, 0 });
        SimpleSeriesRenderer r = new SimpleSeriesRenderer();
        r.setColor(Color.GREEN);
        renderer.addSeriesRenderer(r);
        r = new SimpleSeriesRenderer();
        r.setColor(Color.YELLOW);
        renderer.addSeriesRenderer(r);
        return renderer;
    }

    private void myChartSettings(XYMultipleSeriesRenderer renderer) {
        renderer.setChartTitle("BarChart Example");
        renderer.setXAxisMin(0.5);
        renderer.setXAxisMax(10.5);
        renderer.setYAxisMin(0);
        renderer.setYAxisMax(210);
        renderer.addXTextLabel(1, "2010");
        renderer.addXTextLabel(2, "2011");
        renderer.addXTextLabel(3, "2012");
        renderer.addXTextLabel(4, "2013");
        renderer.setYLabelsAlign(Align.RIGHT);
        renderer.setBarSpacing(0.5);
        renderer.setXTitle("Years");
        renderer.setYTitle("Performance");
        renderer.setShowGrid(true);
        renderer.setGridColor(Color.GRAY);
        renderer.setXLabels(0); // sets the number of integer labels to appear
    }

}

将此行添加到您的清单文件中：

 <activity android:name="org.achartengine.GraphicalActivity" />

带有X轴和Y轴的Android绘图条形图

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