BroadcastReceiver的使用Achartengine

BroadcastReceiver的使用Achartengine

本文介绍了安卓:BroadcastReceiver的使用Achartengine,不显示更新的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我想显示的信息得到了来自无线扫描与广播接收器,为条形图使用achartengine。嗯,我想有一个真正的时间表,我每次接收数据的onReceive()方法,我更新图表。要achaeive,我创造了的onReceive()方法。但我只是得到一个图表的第一个结果的图表对象,没有及时更新,但我可以看到在无线扫描的变化。我想知道是什么问题。这是我使用的code:

 公共类WifiChartsRealTime延伸活动{


的LinearLayout布局;
名单< INT [] GT;值=新的ArrayList&其中; INT []≥();
//名单,其中,ScanResult> classObject =新的ArrayList< ScanResult>();
INT [] [] Center_Frequency_2 = {{1,2,3,4,5,6,7,8,9,10,11,12,13,14},
        {2412,2417,2422,2427,2432,2437,2442,2447,2452,2457,2462,2467,2472,2484},
    };

WifiManager无线网络;
按钮ENAB;
字符串resultsString;
的String [] myStringArray;
INT AA = 10;
公共类接收器扩展的BroadcastReceiver {



    @覆盖
    公共无效的onReceive(上下文的背景下,意图意图){


        INT长;
        如果(intent.getAction()。等于(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)){
             名单< ScanResult>结果= wifi.getScanResults();
             长度= results.size();
             Toast.makeText(getApplicationContext(),
                        resultsString *****************:+结果,Toast.LENGTH_LONG)
                        。显示();

             Toast.makeText(getApplicationContext(),
                        长度1:+长度,Toast.LENGTH_LONG)
                        。显示();

               Log.i(长度1,长度+);
                XYMultipleSeriesRenderer渲染= getTruitonBarRenderer(results.size());
                myChartSettings(渲染);
        / *意图int​​ent1 = ChartFactory.getBarChartIntent(WifiChartsRealTime.this,getTruitonBarDataset(),renderer,Type.DEFAULT);
            startActivity(intent1); * /
        GraphicalView mChartView = ChartFactory.getBarChartView(WifiChartsRealTime.this,getTruitonBarDataset(结果),渲染器,Type.STACKED);
        layout.addView(mChartView);
      // mChartView.refreshDrawableState();
        mChartView.repaint();

         }

    }

}
@覆盖
保护无效的onCreate(包savedInstanceState){
    super.onCreate(savedInstanceState);
    的setContentView(R.layout.activity_wifi_charts_real_time);
     布局=(的LinearLayout)findViewById(R.id.chart);
    ConnectivityManager cxMgr =(ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
     无线=(WifiManager)getSystemService(Context.WIFI_SERVICE);

    接收器接收器=新的接收器();
     registerReceiver(接收器,新的IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
     registerReceiver(接收器,新的IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
}

 私人XYMultipleSeriesDataset getTruitonBarDataset(名单< ScanResult> classObject){
       INT SERIES_NR; //列数来显示,
       ArrayList的<字符串> legendTitles =新的ArrayList<字符串>();
        XYMultipleSeriesDataset数据集=新XYMultipleSeriesDataset();

         Toast.makeText(getApplicationContext(),
                 位置XYMultipleSeriesDataset:+ classObject,Toast.LENGTH_LONG)
                 。显示();
         Toast.makeText(getApplicationContext(),
                 大小XYMultipleSeriesDataset:+ classObject.size(),Toast.LENGTH_LONG)
                 。显示();
       //长度= classObject.size();


        对于(INT J = 0; J< classObject.size(); J ++){
            values​​.add(新INT [] {classObject.get(J).LEVEL}); //每一个意甲将关注的一个接入点,并包含一个RSSI
            }

        对于(INT K = 0; K< classObject.size(); k ++){
             legendTitles.add(classObject.get(K).SSID); //每意甲将有一个传说中的SSID
        }

        //确定DES canaux
        INT [] channelsTab =新INT [classObject.size()];
        的for(int i = 0; I< classObject.size();我++){
            如果(classObject.get(ⅰ)。频率/ 1000 == 2){
                对于(INT J = 0; J< 14,J ++)
                {如果(Center_Frequency_2 [1] [j]的== classObject.get(ⅰ)。频率)
                    channelsTab [i] = Center_Frequency_2 [0] [J]。
                }
                }
            }

        // FIN确定DES canaux

        SERIES_NR = classObject.size(); //接入点的数目
          的for(int i = 0; I< SERIES_NR;我++){//循环,每系列
                CategorySeries系列=新CategorySeries(legendTitles.get(一));
                INT []ν= values​​.get(ⅰ);
                INT seriesLength = v.length;
                dataset.addSeries(series.toXYSeries());

                           对于(INT K = 0; K< seriesLength; k ++){
                     Log.i(屈尊SERIES_NR,SERIES_NR +);
                     Log.i(屈尊II,我+);
                     Log.i(自甘堕落,K +);
                     Log.i(自甘堕落,V [K] +);
                     Log.i(自甘堕落,V [K] / 10 +);
                    / * XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(ⅰ,40  -  v [k]的%10); * /

                    开关(ⅴ[k]的/ 10){
                    案例-9:
                        //series.add(classObject[k]);
                        如果(ⅴ[k]的%10 == 0)
                            //series.add(40);
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I],30);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I],30);
                        }
                        其他
                        //series.add(40  -  v [k]的%10);
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I]中,30  -  v [k]的%10);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I]中,30  -  v [k]的%10);
                        }

                        打破;
                    案例-8:
                        //series.add(classObject[k]);
                        如果(ⅴ[k]的%10 == 0)
                            //series.add(40);
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I],40);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I],40);
                        }
                        其他
                        //series.add(40  -  v [k]的%10);
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I]中,40  -  v [k]的%10);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I]中,40  -  v [k]的%10);
                        }

                        打破;
                    案例-7:
                        //series.add(classObject[k]);
                        如果(ⅴ[k]的%10 == 0)
                            {
                            XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                           tempSerie.add(channelsTab [I],50);
                            tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I],50);

                            }

                        其他
                        //series.add(50  -  v [k]的%10);
                            {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                           tempSerie.add(channelsTab [I]中,50  -  v [k]的%10);
                            tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I]中,50  -  v [k]的%10);
                    // series.toXYSeries()加(7.5,50  -  v [k]的10%)。
                            }

                        打破;
                    案例-6:
                        //series.add(classObject[k]);
                        如果(ⅴ[k]的%10 == 0)
                            //series.add(60);
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I],60);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I],60);

                        }
                        其他
                        //series.add(60  -  v [k]的%10);
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I]中,60  -  v [k]的%10);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I]中,60  -  v [k]的%10);

                        }

                        打破;

                    案例-5:
                        //series.add(classObject[k]);
                        如果(ⅴ[k]的%10 == 0)
                            //series.add(70);
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I],70);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I],70);

                        }
                        其他
                        //series.add(70  -  v [k]的%10);
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I]中,70  -  v [k]的%10);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I]中,70  -  v [k]的%10);

                        }

                        打破;
                    案例-4:
                        //series.add(classObject[k]);
                        如果(ⅴ[k]的%10 == 0)
                            //series.add(80);
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I],80);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I],80);

                        }

                        其他
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I]中,80  -  v [k]的%10);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I]中,80  -  v [k]的%10);

                        }


                        打破;
                    案例-3:
                        //series.add(classObject[k]);
                        如果(ⅴ[k]的%10 == 0)
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I],90);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I],90);

                        }
                        其他
                        //series.add(90  -  v [k]的%10);
                        {XYSeries tempSerie = dataset.getSeriesAt(ⅰ);
                        tempSerie.add(channelsTab [I]中,90  -  v [k]的%10);
                        tempSerie.addAnnotation(legendTitles.get(ⅰ)+:+ V [k]的,channelsTab [I]中,90  -  v [k]的%10);

                        }

                        打破;


                    }


               }



            }
            返回的数据集;
    }


公共XYMultipleSeriesRenderer getTruitonBarRenderer(INT长度){
    XYMultipleSeriesRenderer渲染器=新XYMultipleSeriesRenderer();
    renderer.setAxisTitleTextSize(10);
    renderer.setChartTitleTextSize(20);
    renderer.setLabelsTextSize(10);
    renderer.setLegendTextSize(10);
    renderer.setMargins(新INT [] {30,40,15,0});
    对于(INT K = 0; K<长度; k ++)
    {Log.i(SimpleSeriesRendererK +);
        SimpleSeriesRenderer R =新SimpleSeriesRenderer();
        r.setColor(Color.rgb((int)的(的Math.random()* 255),(int)的(的Math.random()* 255),(INT)的Math.random()* 255));
        renderer.addSeriesRenderer(r)的;
    }


    返回渲染器;
}

@燮pressWarnings(德precation)
私人无效myChartSettings(XYMultipleSeriesRenderer渲染器){
    renderer.setChartTitle(无线频道);
    renderer.setXAxisMin(-1);
    renderer.setXAxisMax(16);
    renderer.setYAxisMin(20);
    renderer.setYAxisMax(100);
    renderer.addXTextLabel(1,1);
    renderer.addXTextLabel(2,2);
    renderer.addXTextLabel(3,3);
    renderer.addXTextLabel(4,4);
    renderer.addXTextLabel(5,5);
    renderer.addXTextLabel(6,6);
    renderer.addXTextLabel(7,7);
    renderer.addXTextLabel(8,8);
    renderer.addXTextLabel(9,9);
    renderer.addXTextLabel(10,10);
    renderer.addXTextLabel(11,11);
    renderer.addXTextLabel(12,12);
    renderer.addXTextLabel(13,13);
    renderer.addXTextLabel(14,14);

    renderer.addYTextLabel(0,);
    renderer.addYTextLabel(20,-100);
    renderer.addYTextLabel(30-90);
    renderer.addYTextLabel(40-80);
    renderer.addYTextLabel(50-70);
    renderer.addYTextLabel(60-60);
    renderer.addYTextLabel(70-50);
    renderer.addYTextLabel(80-40);
    renderer.addYTextLabel(90-30);
    renderer.addYTextLabel(100,);
    renderer.setPanEnabled(真实的,真正的);
    renderer.setZoomEnabled(真实的,真正的);



    renderer.setApplyBackgroundColor(真正的);
    renderer.setBackgroundColor(Color.BLACK);
    renderer.setYLabelsAlign(Align.RIGHT);
    renderer.setBarSpacing(0.5);
    renderer.setXTitle(运河上的WiFi);
    renderer.setYTitle(Puissance杜信号[DBM]);
    renderer.setShowGrid(真正的);
    renderer.setGridColor(Color.GRAY);
    renderer.setXLabels(0); //设置要显示的整数标签的数量
  renderer.setXLabels((int)的0.5); // 25
    renderer.setYLabels(10);
    renderer.setBarWidth(10); //条宽
    renderer.setXLabelsAlign(Align.LEFT);

}






}
 

解决方案

嗯,我解决了这个问题,有一个EAL时间图(柱状图),我不得不改变我的寿法的onReceive像bellow.I希望这将有助于一个人。

 公共无效的onReceive(上下文的背景下,意图意图){
        WifiManager wifiMan =(WifiManager)WifiChartsRealTime.this.getSystemService(Context.WIFI_SERVICE);
          wifiMan.startScan();


        如果(intent.getAction()。等于(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)){
             结果= wifi.getScanResults();
             长度= results.size();


               Log.i(长度1,长度+);
                XYMultipleSeriesRenderer渲染= getTruitonBarRenderer(results.size());
                myChartSettings(渲染);




                   布局=(的LinearLayout)findViewById(R.id.chart);
                   如果(mChartView!= NULL){
                       layout.removeView(mChartView);
                    }
                   mChartView = ChartFactory.getBarChartView(WifiChartsRealTime.this,getTruitonBarDataset(结果),渲染器,Type.STACKED);
                   layout.addView(mChartView,0,新的LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT));


        }



    }`
 

I'm trying to display information got from wifi scan with broadcast receiver ,into a bar chart using achartengine. Well i want to have a real time chart ,every time i receive data from onReceive() method ,i update the chart. To achaeive that ,i create the chart objects in the onReceive() method .But i just get a chart with the first result ,there is no update ,although i can see the changes on the wifi scan.I would like to know what is the problem.This is the code that i'm using:

public class WifiChartsRealTime extends Activity {


LinearLayout layout;
List<int[]> values = new ArrayList<int[]>();
//List<ScanResult> classObject = new ArrayList<ScanResult>();
int [ ] [ ] Center_Frequency_2 = {   { 1,2,3,4,5,6,7,8,9,10,11,12,13,14 },
        { 2412, 2417, 2422, 2427, 2432,2437,2442,2447,2452 ,2457,2462,2467,2472,2484},
    };

WifiManager wifi;
Button      enab;
String resultsString ;
String[] myStringArray;
int aa = 10;
public class Receiver extends BroadcastReceiver{



    @Override
    public void onReceive(Context context, Intent intent) {


        int length ;
        if(intent.getAction().equals(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)){
             List<ScanResult> results = wifi.getScanResults();
             length=results.size();
             Toast.makeText(getApplicationContext(),
                        "resultsString***************** :"+results , Toast.LENGTH_LONG)
                        .show();

             Toast.makeText(getApplicationContext(),
                        "length1 :"+length , Toast.LENGTH_LONG)
                        .show();

               Log.i("length1",length +"");
                XYMultipleSeriesRenderer renderer = getTruitonBarRenderer(results.size());
                myChartSettings(renderer);
        /* Intent intent1 = ChartFactory.getBarChartIntent(WifiChartsRealTime.this,getTruitonBarDataset(),renderer,Type.DEFAULT);
            startActivity(intent1);*/
        GraphicalView mChartView = ChartFactory.getBarChartView(WifiChartsRealTime.this, getTruitonBarDataset( results), renderer, Type.STACKED);
        layout.addView(mChartView);
      //  mChartView.refreshDrawableState();
        mChartView.repaint();

         }

    }

}
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_wifi_charts_real_time);
     layout = (LinearLayout) findViewById(R.id.chart);
    ConnectivityManager cxMgr = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
     wifi = (WifiManager)getSystemService(Context.WIFI_SERVICE);

    Receiver receiver = new Receiver();
     registerReceiver(receiver,new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
     registerReceiver(receiver,new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
}

 private XYMultipleSeriesDataset getTruitonBarDataset( List<ScanResult> classObject) {
       int SERIES_NR  ; //the number of columns to display,
       ArrayList<String> legendTitles = new ArrayList<String>();
        XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();

         Toast.makeText(getApplicationContext(),
                 "Position XYMultipleSeriesDataset:"+classObject , Toast.LENGTH_LONG)
                 .show();
         Toast.makeText(getApplicationContext(),
                 "SIZE XYMultipleSeriesDataset:"+classObject.size() , Toast.LENGTH_LONG)
                 .show();
       // length = classObject.size();


        for (int j=0;j<classObject.size();j++){
            values.add(new int[] { classObject.get(j).level}); //every serie will concern an access point and contain one RSSI
            }

        for (int k = 0; k < classObject.size(); k++) {
             legendTitles.add(classObject.get(k).SSID);//every serie will have a legend the SSID
        }

        //determination des canaux
        int[] channelsTab = new int[classObject.size()];
        for(int i=0;i<classObject.size();i++){
            if  (classObject.get(i).frequency /1000 == 2) {
                for (int j =0;j<14;j++)
                { if (Center_Frequency_2[1][j] == classObject.get(i).frequency)
                    channelsTab[i]= Center_Frequency_2[0][j] ;
                }
                }
            }

        //FIN determination des canaux

        SERIES_NR = classObject.size() ;//number of access point
          for (int i = 0; i < SERIES_NR; i++) {//Loop for every series
                CategorySeries series = new CategorySeries(legendTitles.get(i));
                int[] v = values.get(i);
                int seriesLength = v.length;
                dataset.addSeries(series.toXYSeries());

                           for (int k = 0; k < seriesLength; k++) {
                     Log.i("STOOP SERIES_NR",SERIES_NR+"");
                     Log.i("STOOP ii",i+"");
                     Log.i("STOOP",k+"");
                     Log.i("STOOP",v[k]+"");
                     Log.i("STOOP",v[k] / 10+"");
                    /* XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(i, 40 - v[k] %10);*/

                    switch (v[k] / 10){
                    case -9 :
                        //series.add(classObject[k]);
                        if (v[k] %10 == 0)
                            //series.add(40);
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 30);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 30);
                        }
                        else
                        //series.add(40 - v[k] %10);
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 30 - v[k] %10);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k] , channelsTab[i], 30 - v[k] %10);
                        }

                        break;
                    case -8 :
                        //series.add(classObject[k]);
                        if (v[k] %10 == 0)
                            //series.add(40);
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 40);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 40);
                        }
                        else
                        //series.add(40 - v[k] %10);
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 40 - v[k] %10);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 40 - v[k] %10);
                        }

                        break;
                    case -7 :
                        //series.add(classObject[k]);
                        if (v[k] %10 == 0)
                            {
                            XYSeries tempSerie = dataset.getSeriesAt(i);
                           tempSerie.add(channelsTab[i], 50);
                            tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 50);

                            }

                        else
                        //series.add(50 - v[k] %10);
                            {XYSeries tempSerie = dataset.getSeriesAt(i);
                           tempSerie.add(channelsTab[i],50 - v[k] %10);
                            tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 50 - v[k] %10);
                    //  series.toXYSeries().add(7.5,50 - v[k] %10);
                            }

                        break;
                    case -6 :
                        //series.add(classObject[k]);
                        if (v[k] %10 == 0)
                            //series.add(60);
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 60);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 60);

                        }
                        else
                        //series.add(60 - v[k] %10);
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 60 - v[k] %10);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 60 - v[k] %10);

                        }

                        break;

                    case -5 :
                        //series.add(classObject[k]);
                        if (v[k] %10 == 0)
                            //series.add(70);
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 70);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 70);

                        }
                        else
                        //series.add(70 - v[k] %10);
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 70 - v[k] %10);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 70 - v[k] %10);

                        }

                        break;
                    case -4 :
                        //series.add(classObject[k]);
                        if (v[k] %10 == 0)
                            //series.add(80);
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 80);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 80);

                        }

                        else
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 80 - v[k] %10);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 80 - v[k] %10);

                        }


                        break;
                    case -3 :
                        //series.add(classObject[k]);
                        if (v[k] %10 == 0)
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 90);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 90);

                        }
                        else
                        //series.add(90 - v[k] %10);
                        {XYSeries tempSerie = dataset.getSeriesAt(i);
                        tempSerie.add(channelsTab[i], 90 - v[k] %10);
                        tempSerie.addAnnotation(legendTitles.get(i)+":"+v[k], channelsTab[i], 90 - v[k] %10);

                        }

                        break;


                    }


               }



            }
            return dataset;
    }


public XYMultipleSeriesRenderer getTruitonBarRenderer(int length) {
    XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
    renderer.setAxisTitleTextSize(10);
    renderer.setChartTitleTextSize(20);
    renderer.setLabelsTextSize(10);
    renderer.setLegendTextSize(10);
    renderer.setMargins(new int[] { 30, 40, 15, 0 });
    for (int k = 0; k < length; k++)
    {   Log.i("SimpleSeriesRenderer" ,k+"");
        SimpleSeriesRenderer r = new SimpleSeriesRenderer();
        r.setColor(Color.rgb((int)(Math.random() * 255), (int)(Math.random() * 255), (int)Math.random() * 255));
        renderer.addSeriesRenderer(r);
    }


    return renderer;
}

@SuppressWarnings("deprecation")
private void myChartSettings(XYMultipleSeriesRenderer renderer) {
    renderer.setChartTitle("Wifi Channels");
    renderer.setXAxisMin(-1);
    renderer.setXAxisMax(16);
    renderer.setYAxisMin(20);
    renderer.setYAxisMax(100);
    renderer.addXTextLabel(1, "1");
    renderer.addXTextLabel(2, "2");
    renderer.addXTextLabel(3, "3");
    renderer.addXTextLabel(4, "4");
    renderer.addXTextLabel(5, "5");
    renderer.addXTextLabel(6, "6");
    renderer.addXTextLabel(7, "7");
    renderer.addXTextLabel(8, "8");
    renderer.addXTextLabel(9, "9");
    renderer.addXTextLabel(10, "10");
    renderer.addXTextLabel(11, "11");
    renderer.addXTextLabel(12, "12");
    renderer.addXTextLabel(13, "13");
    renderer.addXTextLabel(14, "14");

    renderer.addYTextLabel(0, "");
    renderer.addYTextLabel(20, "-100");
    renderer.addYTextLabel(30, "-90");
    renderer.addYTextLabel(40, "-80");
    renderer.addYTextLabel(50, "-70");
    renderer.addYTextLabel(60, "-60");
    renderer.addYTextLabel(70, "-50");
    renderer.addYTextLabel(80, "-40");
    renderer.addYTextLabel(90, "-30");
    renderer.addYTextLabel(100, "");
    renderer.setPanEnabled(true, true);
    renderer.setZoomEnabled(true, true);



    renderer.setApplyBackgroundColor(true);
    renderer.setBackgroundColor(Color.BLACK);
    renderer.setYLabelsAlign(Align.RIGHT);
    renderer.setBarSpacing(0.5);
    renderer.setXTitle("Canal du WiFi");
    renderer.setYTitle("Puissance du signal[dbm]");
    renderer.setShowGrid(true);
    renderer.setGridColor(Color.GRAY);
    renderer.setXLabels(0); // sets the number of integer labels to appear
  renderer.setXLabels((int) 0.5);//25
    renderer.setYLabels(10);
    renderer.setBarWidth(10);// bar width
    renderer.setXLabelsAlign(Align.LEFT);

}






}
解决方案

Well i resolved this problem ,to have a eal time chart (bar chart ) ,i have to change tho my onReceive method like bellow.I hope it will help someone.

public void onReceive(Context context, Intent intent) {
        WifiManager wifiMan=(WifiManager)WifiChartsRealTime.this.getSystemService(Context.WIFI_SERVICE);
          wifiMan.startScan();


        if(intent.getAction().equals(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)){
             results = wifi.getScanResults();
             length=results.size();


               Log.i("length1",length +"");
                XYMultipleSeriesRenderer renderer = getTruitonBarRenderer(results.size());
                myChartSettings(renderer);




                   layout = (LinearLayout) findViewById(R.id.chart);
                   if (mChartView != null) {
                       layout.removeView(mChartView);
                    }
                   mChartView = ChartFactory.getBarChartView(WifiChartsRealTime.this, getTruitonBarDataset( results), renderer, Type.STACKED);
                   layout.addView(mChartView, 0, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));


        }



    }`

这篇关于安卓:BroadcastReceiver的使用Achartengine,不显示更新的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

09-01 18:06