Achartengine重绘 [英] Achartengine repaint

问题描述

我在webservice的一个数据连接。在Assynctask我得到的数据，每5秒。
数据赶到后我做出新的数据集，并becuse的mChartView生活我只是重绘。在这里，我正在添加的问题。折线图重绘不能再生图表只是做最后的一个新的顶部。 2-3分钟后取出menmory的课程：（

I have one data connection in webservice. In Assynctask i get data every 5 second. After the data arrived i make new dataset and becuse the mChartView living i just repaint. And here comming my problem. The Line chart repaint not regenerate the chart just make one new top of the last. And of course 2-3 minutes out of menmory :(

下面我code：

class GetData extends AsyncTask<Void, String, Void> {

    private ArrayList<String> Alldata = new ArrayList<String>();
    public XYMultipleSeriesDataset datasetOut;
    public XYMultipleSeriesRenderer mRendererOut;

    @Override
    protected Void doInBackground(Void... unused) {

        Alldata.clear();
        Alldata = DataFromWeb.getChartDataNew("&name=XXX", "XXX");

        return (null);
    }

    @Override
    protected void onPostExecute(Void unused) {


        datasetOut = CCChart.getDataSet(getBaseContext(), Alldata);
        mRendererOut = CCChart.getRendererPortrait(getBaseContext());


        Log.d("Debug", "alldatasize: " + Alldata.size());
        Log.d("Debug", "dataset " + datasetOut.getSeriesCount() );

        if (mChartView != null) {
            mChartView.repaint();

            Log.v("CC_trace", "CCChartRepaint");

        } else {

            mChartView = ChartFactory.getLineChartView(getBaseContext(), datasetOut , mRendererOut);

                layout.addView(mChartView, new LayoutParams(
                        LayoutParams.WRAP_CONTENT, getHeight()));

                Log.v("CC_trace", "CCChartGenerate");   

        }




    }



} 

也许我不是好地方调用重绘（））

MAybe im not call in good place the repaint() :)

图表图像 1

THX的帮助...

thx the help...

推荐答案

在我的我从来没有叫重绘。我只是重建旧

In mine I never call repaint. I just recreate the old one

所以像这样的：

    @Override
    protected void onPostExecute(Void unused) {

    datasetOut = CCChart.getDataSet(getBaseContext(), Alldata);
    mRendererOut = CCChart.getRendererPortrait(getBaseContext());

    Log.d("Debug", "alldatasize: " + Alldata.size());
    Log.d("Debug", "dataset " + datasetOut.getSeriesCount() );

    mChartView = ChartFactory.getLineChartView(getBaseContext(), datasetOut , mRendererOut);

    layout.removeAllViews();
    layout.addView(mChartView, new LayoutParams(LayoutParams.WRAP_CONTENT, getHeight()));
    Log.v("CC_trace", "CCChartGenerate");   
}

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