Question

我在Activity内有一个Activity和一个XML，我有Button。我想在此按钮中单击以使用XML中的achartengine调用新意图（另一个Activity和XML），因此我可以使用TextViews，ActionBar ... 这可能吗？

我的活动代码在按钮中的位置（这是一个普通活动，onCreate()，XML ...）：

public void newGraph(View view){
    Graph graph= new Graph();
    Intent it = grafico.getIntent(this);
    startActivity(it);
}

我的图表的类代码：

public class Grafico {

public Intent getIntent(Context context){
    int [] x = {1, 2, 3, 4, 5, 6};
    int[] y = {75, 82, 77, 90, 84, 82};

    TimeSeries series = new TimeSeries("Glicose");
    for(int i=0; i<x.length; i++){
        series.add(x[i], y[i]);
    }

    XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
    dataset.addSeries(series);

    XYSeriesRenderer renderer = new XYSeriesRenderer();
            XYMultipleSeriesRenderer mRenderer = new XYMultipleSeriesRenderer();
            mRenderer.addSeriesRenderer(renderer);

    Intent intent = ChartFactory.getLineChartIntent(context, dataset, mRenderer, "Title");      
    return intent;
}

}

所以，我想在这个Graph类中使用onCreate来调用我创建的XML文件。这可能吗？

Answer 1

听起来你需要类似官方AChartEngine演示所做的事情。看一下代码here。

您还可以从this帖子中获得一些想法。

Answer 2

如果要显示任何其他元素（如textview，imageview等），则不能使用getLineChartIntent。为此你必须删除getLineChartIntent，你必须使用getLineChartView。

private GraphicalView mChartView;
LinearLayout layout;
protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

layout = (LinearLayout) findViewById(R.id.chart_layout);

}

@Override
    protected void onResume() {
        super.onResume();
        if (mChartView == null) {

            mChartView = execute(this);

            layout.addView(mChartView, new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
        }else {
            mChartView.repaint();
        }
    }


public GraphicalView execute() {
        titles = new String[] { "Crete", "Corfu" };
        List<double[]> x = new ArrayList<double[]>();
        for (int i = 0; i < tit.length; i++) {
            x.add(new double[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 });
        }
        values = new ArrayList<double[]>();
        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 });
        values.add(new double[] { 10, 10, 12, 15, 20, 24, 26, 26, 23, 18, 14, 11 });

        colors = new int[] { Color.BLUE, Color.GREEN};
        styles = new PointStyle[] { PointStyle.CIRCLE, PointStyle.DIAMOND};
        XYMultipleSeriesRenderer renderer = buildRenderer(col, styles);
        int length = renderer.getSeriesRendererCount();
        for (int i = 0; i < length; i++) {
            ((XYSeriesRenderer) renderer.getSeriesRendererAt(i)).setFillPoints(true);
        }

        renderer.setXTitle("Month");
        renderer.setYTitle("Temperature");
        renderer.setXAxisMin(0.5);
        renderer.setXAxisMax(12.5);
        renderer.setYAxisMin(-10);
        renderer.setYAxisMax(40);
        renderer.setAxesColor(Color.BLACK);
        renderer.setLabelsColor(Color.BLUE);


        renderer.setXLabels(12);
        renderer.setYLabels(10);
        renderer.setShowGrid(true);
        renderer.setXLabelsAlign(Align.RIGHT);
        renderer.setYLabelsAlign(Align.RIGHT);
        renderer.setGridColor(Color.RED);
        renderer.setMarginsColor(Color.argb(0x00, 0x01, 0x01, 0x01));
        renderer.setXLabelsColor(Color.WHITE);
        renderer.setYLabelsColor(0, Color.WHITE);



        renderer.setApplyBackgroundColor(true);
        renderer.setBackgroundColor(Color.RED);
        renderer.setZoomButtonsVisible(true);
        renderer.setPanLimits(new double[] { -10, 20, -10, 40 });
        renderer.setZoomLimits(new double[] { -10, 20, -10, 40 });

        renderer.setInScroll(true);

        XYMultipleSeriesDataset dataset = buildDataset(tit, x, values);
        XYSeries series = dataset.getSeriesAt(0);
        series.addAnnotation("Vacation", 6, 30);

        //double maxX = series.getMaxX();
        //Log.v("maxX", ""+maxX);
       // double minX = maxX - 12; // deltaX is your required x-range
       // Log.v("minX", ""+minX);
       // double minY = series.getMinY();
       // Log.v("minY", ""+minY);
       // double maxY = series.getMaxY();       
       // Log.v("maxY", ""+maxY);

        renderer.setRange(new double[] { 0, 15, 0, 32 });

        //Intent intent = ChartFactory.getLineChartIntent(context, dataset, renderer, "Average temperature");
        return ChartFactory.getLineChartView(this, dataset, renderer);
    }


    protected XYMultipleSeriesDataset buildDataset(String[] titles, List<double[]> xValues,
            List<double[]> yValues) {
        for(int k = 0; k < titles.length; k++)
            Log.v("titles--", ""+titles[k]);
        XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
        addXYSeries(dataset, titles, xValues, yValues, 0);
        return dataset;
    }

    public void addXYSeries(XYMultipleSeriesDataset dataset, String[] titles, List<double[]> xValues,
            List<double[]> yValues, int scale) {
        int length = titles.length;
        for (int i = 0; i < length; i++) {
            XYSeries series = new XYSeries(titles[i], scale);
            double[] xV = xValues.get(i);
            double[] yV = yValues.get(i);
            int seriesLength = xV.length;
            for (int k = 0; k < seriesLength; k++) {
                series.add(xV[k], yV[k]);
            }
            dataset.addSeries(series);
        }
    }

Android应用程序中的XML文件内的AChartEngine图

2 个答案: