Databases
StackOverflow2013
Postsdbo
PONullpointer exception occurs when creating a bar-chart in android using Achartengine library
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PONullpointer exception occurs when creating a bar-chart in android using Achartengine library
    primarykey
    data
    text
    <p>Has anyone met this situation when creating a bar-chart in android</p> <p>I am trying to create a bar-chart in android using Achartengine.But i am actually getting the input values ie. x and y axis values <strong>(for creating a bar-chart)</strong> from the web service by consuming it.</p> <p>My logcat is showing like this. What does this meant? </p> <p><strong>LOGCAT</strong></p> <pre><code>11-10 14:45:37.483: W/KeyCharacterMap(421): No keyboard for id 0 11-10 14:45:37.483: W/KeyCharacterMap(421): Using default keymap: /system/usr/keychars/qwerty.kcm.bin 11-10 14:45:44.044: D/AndroidRuntime(421): Shutting down VM 11-10 14:45:44.044: W/dalvikvm(421): threadid=1: thread exiting with uncaught exception (group=0x4001d800) 11-10 14:45:44.054: E/AndroidRuntime(421): FATAL EXCEPTION: main 11-10 14:45:44.054: E/AndroidRuntime(421): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.xmlparsing_test/com.example.xmlparsing_test.BarGraphActivity}: java.lang.NullPointerException 11-10 14:45:44.054: E/AndroidRuntime(421): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 11-10 14:45:44.054: E/AndroidRuntime(421): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 11-10 14:45:44.054: E/AndroidRuntime(421): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 11-10 14:45:44.054: E/AndroidRuntime(421): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 11-10 14:45:44.054: E/AndroidRuntime(421): at android.os.Handler.dispatchMessage(Handler.java:99) 11-10 14:45:44.054: E/AndroidRuntime(421): at android.os.Looper.loop(Looper.java:123) 11-10 14:45:44.054: E/AndroidRuntime(421): at android.app.ActivityThread.main(ActivityThread.java:4627) 11-10 14:45:44.054: E/AndroidRuntime(421): at java.lang.reflect.Method.invokeNative(Native Method) 11-10 14:45:44.054: E/AndroidRuntime(421): at java.lang.reflect.Method.invoke(Method.java:521) 11-10 14:45:44.054: E/AndroidRuntime(421): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 11-10 14:45:44.054: E/AndroidRuntime(421): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 11-10 14:45:44.054: E/AndroidRuntime(421): at dalvik.system.NativeStart.main(Native Method) 11-10 14:45:44.054: E/AndroidRuntime(421): Caused by: java.lang.NullPointerException 11-10 14:45:44.054: E/AndroidRuntime(421): at com.example.xmlparsing_test.BarGraphActivity.buildBarDataset(BarGraphActivity.java:133) 11-10 14:45:44.054: E/AndroidRuntime(421): at com.example.xmlparsing_test.BarGraphActivity.DrawGraph(BarGraphActivity.java:77) 11-10 14:45:44.054: E/AndroidRuntime(421): at com.example.xmlparsing_test.BarGraphActivity.onCreate(BarGraphActivity.java:46) 11-10 14:45:44.054: E/AndroidRuntime(421): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 11-10 14:45:44.054: E/AndroidRuntime(421): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 11-10 14:45:44.054: E/AndroidRuntime(421): ... 11 more 11-10 14:45:45.794: I/Process(421): Sending signal. PID: 421 SIG: 9 </code></pre> <p><strong>BarGraphActivity.java</strong></p> <pre><code>public class BarGraphActivity extends Chart { int[] order,freight,margin; int[] x_axis = order; int[] y_axis = freight; int[] mpercent = margin; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main1); Bundle extras = getIntent().getExtras(); if(extras != null) { order = extras.getIntArray("gotonextpage"); freight = extras.getIntArray("gotonextpage"); margin = extras.getIntArray("gotonextpage"); } else {} /*x_axis = new int[1]; y_axis = new int[1]; x_axis[0] = getIntent().getIntExtra("orderNo", 90); y_axis[0] = getIntent().getIntExtra("freightRate", 80);*/ DrawGraph(); } public void DrawGraph() { String[] titles = new String[] { " Barcharts", "" }; List&lt;int[]&gt; values = new ArrayList&lt;int[]&gt;(); values.add(order); values.add(freight); values.add(margin); int[] colors = new int[] { Color.WHITE, Color.BLACK }; XYMultipleSeriesRenderer renderer = buildBarRenderer(colors); renderer.setOrientation(Orientation.HORIZONTAL); setChartSettings(renderer, "some texts", " ", " ", 0, order, 0, freight, Color.RED, Color.LTGRAY); renderer.setXLabels(1); renderer.addXTextLabel(2, "orderNo"); renderer.addYTextLabel(2, "freight"); renderer.setPanEnabled(true, false); int length = renderer.getSeriesRendererCount(); for (int i = 0; i &lt; length; i++) { SimpleSeriesRenderer seriesRenderer = renderer.getSeriesRendererAt(i); seriesRenderer.setDisplayChartValues(true); } ChartFactory.getBarChartIntent(this, buildBarDataset(titles, values), renderer, Type.DEFAULT); } public XYMultipleSeriesRenderer buildBarRenderer(int[] colors) { // creates a SeriesRenderer and initializes it with useful default values as well as colors XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer(); renderer.setAxisTitleTextSize(15); renderer.setChartTitleTextSize(20); renderer.setLabelsTextSize(15); renderer.setLegendTextSize(15); int length = colors.length; for (int i = 0; i &lt; length; i++) { SimpleSeriesRenderer r = new SimpleSeriesRenderer(); r.setColor(colors[i]); renderer.addSeriesRenderer(r); } return renderer; } public void setChartSettings(XYMultipleSeriesRenderer renderer, String title, String xTitle, String yTitle, int xMin, int[] order2, int yMin, int[] freight2, int axesColor, int labelsColor) { // sets lots of default values for this renderer renderer.setChartTitle(title); renderer.setXTitle(xTitle); renderer.setYTitle(yTitle); renderer.setXAxisMin(xMin); renderer.setYAxisMin(yMin); renderer.setAxesColor(axesColor); renderer.setLabelsColor(labelsColor); renderer.setApplyBackgroundColor(true); renderer.setBackgroundColor(Color.BLACK); } public XYMultipleSeriesDataset buildBarDataset(String[] titles, List&lt;int[]&gt; values) { // adds the axis titles and values into the dataset XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset(); int length = titles.length; for (int i = 0; i &lt; length; i++) { CategorySeries series = new CategorySeries(titles[i]); int[] v = values.get(i); int seriesLength = v.length; for (int k = 0; k &lt; seriesLength; k++) { series.add(v[k]); } dataset.addSeries(series.toXYSeries()); } return dataset; } } </code></pre> <p><strong>Chart.java</strong></p> <pre><code>public class Chart extends Activity { EditText edt1, edt2; TextView txtv1; Button btn; String orderNo = ""; int freightRate = 0; int marginPercent = 0; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); edt1 = (EditText) findViewById(R.id.editText1); edt2 = (EditText) findViewById(R.id.editText2); btn = (Button) findViewById(R.id.button1); btn.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { getTMSChart(edt1.getText().toString(), edt2.getText().toString()); Intent intnt = new Intent(v.getContext(), BarGraphActivity.class); intnt.putExtra("orderNo", orderNo); intnt.putExtra("freightRate", freightRate); intnt.putExtra("marginPercent", marginPercent); startActivity(intnt); } }); } public void getTMSChart(String FromDate, String ToDate) { System.setProperty("http.keepAlive", "false"); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); envelope.dotNet = true; String METHOD = "GetTMSChart"; String NAMESPACE = "http://tempuri.org/"; String SOAP_ACTION = "http://tempuri.org/GetTMSChart"; String URL = "http://54.251.60.177/TMSOrdersService/TMSDetails.asmx"; SoapObject request = new SoapObject(NAMESPACE, METHOD); request.addProperty("FromDate", FromDate.trim()); request.addProperty("ToDate", ToDate.trim()); envelope.setOutputSoapObject(request); HttpTransportSE androidHttpTransport = new HttpTransportSE(URL); try { androidHttpTransport.call(SOAP_ACTION, envelope); SoapObject result = (SoapObject) envelope.bodyIn; SoapObject root = (SoapObject) ((SoapObject) (result).getProperty(0)).getProperty("NewDataSet"); int tablesCount = root.getPropertyCount(); for (int i = 0; i &lt; tablesCount; i++) { SoapObject table = (SoapObject) root.getProperty(i); orderNo = table.getPropertyAsString("Order_No").replace("OR", ""); freightRate = Integer.parseInt(table.getPropertyAsString("Freight_Rate")); marginPercent = Integer.parseInt(table.getPropertyAsString("Margin_Percent")); // Toast.makeText(getApplicationContext(), "", Toast.LENGTH_LONG).show(); for(int j = 0; j &lt; tablesCount; j++) { int ord,fre,marg; Bundle extras = getIntent().getExtras(); if(extras!=null ) { ord = extras.getInt("gotonextpage"); fre = extras.getInt("gotonextpage"); marg = extras.getInt("gotonextpage"); } else{} } } } catch (Exception e) { Toast.makeText(getApplicationContext(), e.getMessage(), Toast.LENGTH_LONG).show(); e.printStackTrace(); } }} </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USprabu
    1. USprabu
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COWhat is 133 line in file BarGraphActivity?
      singulars
      1. PONullpointer exception occurs when creating a bar-chart in android using Achartengine library
      1. USArtemStorozhuk
    2. CO@Astor this is the 133rd line of my source int seriesLength = v.length;
      singulars
      1. PONullpointer exception occurs when creating a bar-chart in android using Achartengine library
      1. USprabu
    3. COplease post some related code too.
      singulars
      1. PONullpointer exception occurs when creating a bar-chart in android using Achartengine library
      1. USLokesh Mehra
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload