Question

我正在开发一个使用chartengine lib绘制用户数据的应用程序。我有一个标签应用程序，我的图表绘图可以在任何地方工作，但不是从加载到标签的活动。我想知道为什么以及是否有人可以帮助我？

这有效：

public class DataActivity extends Activity {
static final int SERIES_NR = 3;
@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.data_form);
    XYMultipleSeriesRenderer renderer = getTruitonBarRenderer();
    myChartSettings(renderer);
    Intent i = ChartFactory.getBarChartIntent(DataActivity.this, getTruitonBarDataset(), renderer, Type.DEFAULT);
    startActivity(i);   




}


 private XYMultipleSeriesDataset getTruitonBarDataset() {
        XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
        final int nr = 11;
        Random r = new Random();
        ArrayList<String> legendTitles = new ArrayList<String>();
        legendTitles.add("Sales");
        legendTitles.add("Expenses");
        legendTitles.add("age");
        for (int i = 0; i < SERIES_NR; i++) {
            CategorySeries series = new CategorySeries(legendTitles.get(i));
            for (int k = 0; k < nr; k++) {
                series.add(k+ 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.BLUE);
        renderer.addSeriesRenderer(r);

        r = new SimpleSeriesRenderer();
        r.setColor(Color.RED);
        renderer.addSeriesRenderer(r);

        r = new SimpleSeriesRenderer();
        r.setColor(Color.CYAN);
        renderer.addSeriesRenderer(r);

        return renderer;
    }

    private void myChartSettings(XYMultipleSeriesRenderer renderer) {
        renderer.setChartTitle("achart engine by mahdi tajik");
        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.addXTextLabel(5, "2013");
        renderer.addXTextLabel(6, "2013");
        renderer.addXTextLabel(7, "2012");
        renderer.addXTextLabel(8, "20123");
        renderer.addXTextLabel(9, "201223");
        renderer.addXTextLabel(10, "2022213");
        renderer.addXTextLabel(11, "20122223");
        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
    }


}

但这不起作用：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.static_form);

    initilizeUi();
}

private void plotWeekStatics(){
    XYMultipleSeriesRenderer renderer = getTruitonBarRenderer();
    myChartSettings(renderer);
    Intent i = ChartFactory.getBarChartIntent(StaticActivity.this, getTruitonBarDataset(), renderer, Type.DEFAULT);
    startActivity(i);   

}
 private XYMultipleSeriesDataset getTruitonBarDataset() {
        XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
        final int nr = 11;
        Random r = new Random();
        ArrayList<String> legendTitles = new ArrayList<String>();
        legendTitles.add("Sales");
        legendTitles.add("Expenses");
        legendTitles.add("age");
        for (int i = 0; i < SERIES_NR; i++) {
            CategorySeries series = new CategorySeries(legendTitles.get(i));
            for (int k = 0; k < nr; k++) {
                series.add(k+ 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.BLUE);
        renderer.addSeriesRenderer(r);

        r = new SimpleSeriesRenderer();
        r.setColor(Color.RED);
        renderer.addSeriesRenderer(r);

        r = new SimpleSeriesRenderer();
        r.setColor(Color.CYAN);
        renderer.addSeriesRenderer(r);

        return renderer;
    }

    private void myChartSettings(XYMultipleSeriesRenderer renderer) {
        renderer.setChartTitle("achart engine by mahdi tajik");
        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.addXTextLabel(5, "2013");
        renderer.addXTextLabel(6, "2013");
        renderer.addXTextLabel(7, "2012");
        renderer.addXTextLabel(8, "20123");
        renderer.addXTextLabel(9, "201223");
        renderer.addXTextLabel(10, "2022213");
        renderer.addXTextLabel(11, "20122223");
        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
    }

为什么相同的代码在一个活动中起作用而在另一个活动中起作用我必须说，在第二个代码示例中，它会加载到tabactivity。

Answer 1

我终于解决了这个问题。问题是我不会在清单文件中定义这样的achartactivity：

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

并添加此我的应用程序正常工作。：）

achartengine意图不会开始

1 个答案: