I want to use graph in widget. Like This! I want to make graph using AchartEngine. Graph using AchartEngine is working in normal app but how to implement it in widget?
Here is My code:
public class MainActivity extends ActionBarActivity {
private XYMultipleSeriesDataset mDataset = getDemoDataset();
private XYMultipleSeriesRenderer mRenderer = getDemoRenderer();
private GraphicalView mChartView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setRendererStyling();
if (mChartView == null) {
LinearLayout layout = (LinearLayout) findViewById(R.id.chart);
mChartView = ChartFactory.getLineChartView(MainActivity.this,
mDataset, mRenderer);
mRenderer.setSelectableBuffer(100);
layout.addView(mChartView, new LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
} else {
mChartView.repaint();
}
}
private void setRendererStyling() {
mRenderer.setApplyBackgroundColor(true);
mRenderer.setBackgroundColor(Color.argb(100, 50, 50, 50));
mRenderer.setAxisTitleTextSize(16);
mRenderer.setChartTitleTextSize(20);
mRenderer.setLabelsTextSize(15);
mRenderer.setLegendTextSize(15);
mRenderer.setMargins(new int[] { 20, 30, 15, 0 });
mRenderer.setZoomButtonsVisible(true);
mRenderer.setPointSize(8);
}
private XYMultipleSeriesRenderer getDemoRenderer() {
XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
renderer.setMargins(new int[] { 20, 30, 15, 0 });
XYSeriesRenderer r = new XYSeriesRenderer();
r.setColor(Color.BLUE);
r.setPointStyle(PointStyle.SQUARE);
// r.setFillBelowLine(true);
// r.setFillBelowLineColor(Color.WHITE);
r.setFillPoints(true);
renderer.addSeriesRenderer(r);
r = new XYSeriesRenderer();
r.setPointStyle(PointStyle.CIRCLE);
r.setColor(Color.GREEN);
r.setFillPoints(true);
renderer.addSeriesRenderer(r);
renderer.setAxesColor(Color.DKGRAY);
renderer.setLabelsColor(Color.LTGRAY);
return renderer;
}
private XYMultipleSeriesDataset getDemoDataset() {
double[] seriesFirstY = { 20, -20, 63, 150, -49, 24, 91, -34, -8 };
double[] seriesSecondY = { 10, 70, -40, -20, 130, 24, 167, -34, 80 };
double[] seriesFirstX = { 0, 8, 14, 20, 35, 40, 56, 80, 109 };
double[] seriesSecondX = { 0, 24, 67, 75, 95, 134, 149, 168, 180 };
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
XYSeries firstSeries = new XYSeries("series One");
for (int i = 0; i < 9; i++)
firstSeries.add(seriesFirstX[i], seriesFirstY[i]);
dataset.addSeries(firstSeries);
XYSeries secondSeries = new XYSeries("series Two");
for (int j = 0; j < 9; j++)
secondSeries.add(seriesSecondX[j], seriesSecondY[j]);
dataset.addSeries(secondSeries);
return dataset;
}
I want to use Above code in widget app. Please help me.!!
public class MainActivity extends AppWidgetProvider {
private XYMultipleSeriesDataset mDataset = getDemoDataset();
private XYMultipleSeriesRenderer mRenderer = getDemoRenderer();
private GraphicalView mChartView;
#SuppressLint("NewApi")
#SuppressWarnings("deprecation")
#Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
for (int i = 0; i < appWidgetIds.length; i++) {
int currentWidgetId = appWidgetIds[i];
RemoteViews views = new RemoteViews(context.getPackageName(),
R.layout.activity_main);
setRendererStyling();
if (mChartView == null) {
LayoutInflater inflater = LayoutInflater.from(context);
View rowView = inflater.inflate(R.layout.second, null, true);
LinearLayout layout = (LinearLayout) rowView
.findViewById(R.id.chart);
mChartView = ChartFactory.getLineChartView(context, mDataset,
mRenderer);
mRenderer.setSelectableBuffer(100);
layout.addView(mChartView, new LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
// views.apply(context, layout);
views.setImageViewBitmap(R.id.img_view,
layout.getDrawingCache());
appWidgetManager.updateAppWidget(currentWidgetId, views);
Toast.makeText(context, "widget added", Toast.LENGTH_SHORT)
.show();
} else {
mChartView.repaint();
}
}
}
}
I tried this code, but its does not work... Please help me.
Related
I modified the sample code because I need to get a pie chart that is updated continuously. I managed to do some work but I can not figure out how to refresh the graph. This is my code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
init();
ButtonInit();
mRenderer.setApplyBackgroundColor(true);
mRenderer.setBackgroundColor(Color.argb(100, 50, 50, 50));
mRenderer.setChartTitleTextSize(20);
mRenderer.setLabelsTextSize(15);
mRenderer.setLegendTextSize(15);
mRenderer.setMargins(new int[] { 20, 30, 15, 0 });
mRenderer.setZoomButtonsVisible(true);
mRenderer.setStartAngle(90);
for (int i = 0; i < VALUES.length; i++) {
mSeries.add(NAME_LIST[i] + " " + VALUES[i], VALUES[i]);
SimpleSeriesRenderer renderer = new SimpleSeriesRenderer();
renderer.setColor(COLORS[(mSeries.getItemCount() - 1) % COLORS.length]);
mRenderer.addSeriesRenderer(renderer);
}
if (mChartView != null) {
mChartView.repaint();
}
}
#Override
protected void onResume() {
super.onResume();
LinearLayout layout = (LinearLayout) findViewById(R.id.Graph);
mChartView = (GraphicalView) ChartFactory.getPieChartView(this, mSeries, mRenderer);
mRenderer.setClickEnabled(true);
mRenderer.setSelectableBuffer(10);
layout.addView(mChartView, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
mChartView.repaint();
}
variables a, b​​, c, d are constantly changing because I get them via bluetooth.
Try doing this way
private GraphicalView mChart;
LinearLayout chart_container = (LinearLayout) findViewById(R.id.graphHolder);
.........
.......
mChart = (GraphicalView) ChartFactory.getPieChartView(this, dataset,
mRenderer);
chart_container.addView(mChart);
Now you can use
mChart.repaint();
I want to display graph using Achartengine in Fragment.
In my layout file I have used empty linear layout to add graph returned by createIntent() method
but it only shows blank screen
I am using following code
My Fragment activity is as below
pls help
public class Analytics_Screen extends Fragment implements OnClickListener,SlideActivity.Callbacks{
View checkanalytics_view;
SlideActivity activity;
LinearLayout graph_container;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
activity = (SlideActivity) getActivity();
metrics = new DisplayMetrics();
activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState)
{
if (checkanalytics_view == null)
{
checkanalytics_view = inflater.inflate(R.layout.checkanalytics_screen, null, false);
}
activity.OpenLeftmenu(0);
SlideActivity.registerCallback(this);
graph_container = (LinearLayout)checkanalytics_view.findViewById(R.id.graph_container);
final GraphicalView gv =createIntent();
graph_container.addView(gv,new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT));
return checkanalytics_view;
}
public GraphicalView createIntent()
{
// List<double[]> values = new ArrayList<double[]>();
System.out.println("==============create Intent Start==========================");
List<Double> dValues=new ArrayList<Double>();
dValues.add((double) 5000);
dValues.add((double) 6000);
dValues.add((double) 7000);
dValues.add((double) 8000);
dValues.add((double) 10000);
dValues.add((double) 5000);
dValues.add((double) 25000);
dValues.add((double) 50000);
dValues.add((double) 50000);
// values.add(new double[] { 5000, 7300, 9240,10230, 11300, 10040,14230, 12300, 14240});
int[] colors = new int[] { Color.parseColor("#77c4d3")};
XYMultipleSeriesRenderer renderer = buildBarRenderer(colors);
renderer.setOrientation(Orientation.VERTICAL);
setChartSettings(renderer, "Analitics", "", "",0.1,
12.5, 0,50000, Color.BLACK, Color.BLACK);
renderer.setXLabels(1);
renderer.setYLabels(10);
renderer.addXTextLabel(1, "Male");
renderer.addXTextLabel(2, "Female");
renderer.addXTextLabel(3, "Age 0-20");
renderer.addXTextLabel(4, "Age 21-30");
renderer.addXTextLabel(5, "Age 31-40");
renderer.addXTextLabel(6, "Age 41-50");
renderer.addXTextLabel(7, "Age 50+");
renderer.addXTextLabel(8, "Penciled");
renderer.addXTextLabel(9, "Attended");
/* renderer.addXTextLabel(10, "Oct");
renderer.addXTextLabel(11, "Nov");
renderer.addXTextLabel(12, "Dec");*/
int length = renderer.getSeriesRendererCount();
for (int i = 0; i < length; i++) {
SimpleSeriesRenderer seriesRenderer = renderer.getSeriesRendererAt(i);
seriesRenderer.setDisplayChartValues(true);
}
final GraphicalView grfv = ChartFactory.getBarChartView(activity, buildBarDataset(dValues), renderer,Type.DEFAULT);
System.out.println("===============Graph View=================="+grfv);
return grfv;
}
protected XYMultipleSeriesRenderer buildBarRenderer(int[] colors) {
XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
renderer.setAxisTitleTextSize(10);
renderer.setChartTitleTextSize(20);
renderer.setLabelsTextSize(10);
renderer.setLegendTextSize(5);
renderer.setBarSpacing(1);
renderer.setMarginsColor(Color.parseColor("#EEEDED"));
renderer.setXLabelsColor(Color.BLACK);
renderer.setYLabelsColor(0,Color.BLACK);
renderer.setApplyBackgroundColor(true);
renderer.setBackgroundColor(Color.parseColor("#FBFBFC"));
renderer.setInScroll(true);
int length = colors.length;
Log.d("Color Len",""+length);
for (int i = 0; i < length; i++) {
SimpleSeriesRenderer r = new SimpleSeriesRenderer();
r.setColor(colors[i]);
// r.setChartvalueAngle(-90);
r.setChartValuesSpacing(25);
renderer.addSeriesRenderer(r);
}
return renderer;
}
protected XYMultipleSeriesDataset buildBarDataset(List<Double> values) {
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
CategorySeries series = new CategorySeries("Amount");
// Double v = values.get(0);
int seriesLength = values.size();
for (int k = 0; k < seriesLength; k++) {
series.add(values.get(k));
}
dataset.addSeries(series.toXYSeries());
return dataset;
}
protected void setChartSettings(XYMultipleSeriesRenderer renderer, String title, String xTitle,
String yTitle, double xMin, double xMax, double yMin, double yMax, int axesColor,
int labelsColor) {
renderer.setChartTitle(title);
renderer.setYLabelsAlign(Align.RIGHT);
renderer.setXLabelsAlign(Align.RIGHT);
renderer.setXTitle(xTitle);
renderer.setYTitle(yTitle);
renderer.setXAxisMin(xMin);
renderer.setXAxisMax(xMax);
renderer.setYAxisMin(yMin);
renderer.setYAxisMax(yMax);
renderer.setMargins(new int[] {15,50,50,50 });
renderer.setAxesColor(axesColor);
renderer.setLabelsColor(labelsColor);
}
Use this instead
protected XYMultipleSeriesRenderer buildBarRenderer(int[] colors)
{
XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
renderer.setAxisTitleTextSize(10);
renderer.setChartTitleTextSize(20);
renderer.setLabelsTextSize(10);
renderer.setLegendTextSize(5);
renderer.setBarSpacing(1);
renderer.setMarginsColor(Color.parseColor("#EEEDED"));
renderer.setXLabelsColor(Color.BLACK);
renderer.setYLabelsColor(0, Color.BLACK);
renderer.setApplyBackgroundColor(true);
renderer.setBackgroundColor(Color.parseColor("#FBFBFC"));
renderer.setInScroll(true);
int length = colors.length;
Log.d("Color Len", "" + length);
XYSeriesRenderer r = new XYSeriesRenderer();
r.setColor(colors[0]);
// r.setChartvalueAngle(-90);
// r.setChartValuesSpacing(25);
renderer.addSeriesRenderer(r);
return renderer;
}
I am not sure if my answer can solve your problem, but I was successful in displaying a graph in a fragment. This is what I did, following is my fragment Layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#4DDBFF">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/graphLayout"
android:background="#000000" />
</LinearLayout>
I created 2 classes (a)SideFragment.java (b) LineGraph.java
LineGraph.java generates the graph and the following method return the view in this class
public GraphicalView getView(Context context){
GraphicalView view = ChartFactory.getLineChartView(context, mDataset, mRenderer);
return view;
}
In SideFragment.java I have a GraphicalView variable which is initialised in onCreate() by calling LineGraph.getView() as follows
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
context = getActivity().getApplicationContext();
line = new LineGraph();
graphview = line.getView(context);
}
And I add this Graphview is attached to the fragment Layout in onStart()
public void onStart() {
super.onStart();
Log.i(TAG, "onStart");
LinearLayout fragmentLayout = (LinearLayout) view.findViewById(R.id.graphLayout);
fragmentLayout.addView(graphview);
}
Since I am generating the graph dynamically I keep repainting the GraphView on a background thread (AsyncTask) which I have initiated in onActivityCreated()
protected void onProgressUpdate(String... values) {
Log.i(TAG, "onProgressUpdate");
graphview.repaint();
super.onProgressUpdate(values);
}
I hope this could be of some help to you.
I am new to AchartEngine. I am using AchartEngine with android to create a Barchart. I have looked at the aChartEngine API and have created a Barchart, its working fine.
When I want to see my actual view I have to decrease the zoom rate by clicking zoom button which is in right bottom. I need to show a compleate Barchart what I exactly declared in my program with out using zoom button.
I need to navigate from one view to another. So, I created one graphical view with ontouchlistner, but it shows error.
Any ideas would be greatly appreciated. Am I missing something here?
public class GraphicViewExample extends Activity {
private String[] mMonth = new String[] { "Jan", "Feb", "Mar", "Apr", "May",
"Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
int[] x = { 0, 1, 2, 3, 4, 5, 6, 7 };
int[] income = { 2000, 2500, 2700, 3000, 2800, 3500, 3700, 3800 };
public static final String TYPE = "type";
private XYMultipleSeriesDataset mDataset = getDemoDataset();
private XYMultipleSeriesRenderer mRenderer = getDemoRenderer();
private GraphicalView mChartView;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.graphicviewexample);
if (mChartView == null) {
LinearLayout layout = (LinearLayout) findViewById(R.id.chart);
mChartView = ChartFactory.getBarChartView(this, mDataset,
mRenderer, Type.DEFAULT);
mRenderer.setSelectableBuffer(100);
layout.addView(mChartView, new LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
} else {
mChartView.repaint();
}
mChartView.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
#SuppressWarnings("unused")
/*SeriesSelection seriesSelection = mChartView
.getCurrentSeriesAndPoint();*/
SimpleSeriesRenderer r = new SimpleSeriesRenderer();
mRenderer.removeAllRenderers();
r.setColor(Color.RED);
mChartView.repaint();
return true;
}
});
/*mChartView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
* LinearLayout slayout = (LinearLayout)
* findViewById(R.id.chart); ChartView =
* ChartFactory.getBarChartView( getApplicationContext(),
* sDataset, smRenderer, Type.DEFAULT);
* slayout.addView(ChartView, new LayoutParams(
* LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
*
* ChartView.repaint();
mChartView.repaint();
}
});*/
}
private XYMultipleSeriesDataset getDemoDataset() {
XYSeries incomeSeries = new XYSeries("Income");
for (int i = 0; i < x.length; i++) {
incomeSeries.add(i, income[i]);
}
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
dataset.addSeries(incomeSeries);
return dataset;
}
private XYMultipleSeriesRenderer getDemoRenderer() {
XYSeriesRenderer incomeRenderer = new XYSeriesRenderer();
incomeRenderer.setColor(Color.rgb(130, 130, 230));
incomeRenderer.setFillPoints(true);
incomeRenderer.setLineWidth(2);
incomeRenderer.setDisplayChartValues(true);
XYMultipleSeriesRenderer multiRenderer = new XYMultipleSeriesRenderer();
multiRenderer.setXLabels(0);
multiRenderer.setBarSpacing(0.3f);
multiRenderer.setBarWidth(30);
multiRenderer.setChartTitle("Income Chart");
multiRenderer.setXTitle("Year 2013");
multiRenderer.setYTitle("Amount in Dollars");
//multiRenderer.setZoomLimits(1.0,0.7,1.0,3000.0);
multiRenderer.setZoomButtonsVisible(true);
//multiRenderer.setZoomEnabled(true, true);
//multiRenderer.setPanEnabled(true, true);
multiRenderer.setInScroll(true);
multiRenderer.setXAxisMin(0);
multiRenderer.setXAxisMax(7);
multiRenderer.setYAxisMin(0);
multiRenderer.setYAxisMax(4000);
multiRenderer.setClickEnabled(true);
multiRenderer.setShowGridX(true);
for (int i = 0; i < x.length; i++) {
multiRenderer.addXTextLabel(i, mMonth[i]);
}
multiRenderer.addSeriesRenderer(incomeRenderer);
return multiRenderer;
}
}
Logs:
java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
at org.achartengine.renderer.DefaultRenderer.getSeriesRendererAt(DefaultRenderer.java:189)
at org.achartengine.chart.XYChart.draw(XYChart.java:240)
at org.achartengine.GraphicalView.onDraw(GraphicalView.java:168)
This code works for my line graph,
v.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
SeriesSelection seriesSelection = ((GraphicalView) v)
.getCurrentSeriesAndPoint();
Log.d("sreedhu", String.valueOf(seriesSelection));
if (seriesSelection == null) {
Log.d("sreedhu", "Nothing Selected");
} else {
//your code}
}
}
use this codes to zoom your barchart...!
renderer.setScale((float) 1);
I have a simple TimeChart in AChartEngine, everything works good but i have no idea how to add second series. Every my try was ended by ANR. Have you got any ideas how to add another series? This is my code:
EDIT: I changed code, i tried add second line but i have ANR:
public class TestgrafActivity extends Activity {
private XYMultipleSeriesDataset mDataset;
private XYMultipleSeriesRenderer mRenderer;
List<double[]> values = new ArrayList<double[]>();
private GraphicalView mChartView;
private TimeSeries time_series,time_series2;
private LinearLayout layout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
layout = (LinearLayout) findViewById(R.id.chart);
time_series = new TimeSeries("Temperature");
for (int i = 0; i < 50; i++){
long value = new Date().getTime();
time_series.add(new Date(value+(i*1000)), new Random().nextInt(25));
}
time_series2 = new TimeSeries("Temperature2");
for (int i = 0; i < 50; i++){
long value = new Date().getTime();
time_series2.add(new Date(value+(i*1000)), new Random().nextInt(40));
}
mDataset = new XYMultipleSeriesDataset();
mDataset.addSeries(time_series);
mDataset.addSeries(time_series2);
XYSeriesRenderer r = new XYSeriesRenderer();
r.setColor(Color.GREEN);
r.setPointStyle(PointStyle.CIRCLE);
r.setFillPoints(true);
r.setLineWidth(3);
r.setDisplayChartValues(true);
XYSeriesRenderer r2 = new XYSeriesRenderer();
r2.setColor(Color.RED);
r2.setPointStyle(PointStyle.CIRCLE);
r2.setFillPoints(true);
r2.setLineWidth(3);
r2.setDisplayChartValues(true);
mRenderer = new XYMultipleSeriesRenderer();
mRenderer.addSeriesRenderer(r);
mRenderer.addSeriesRenderer(r2);
mRenderer.setAxisTitleTextSize(16);
mRenderer.setChartTitleTextSize(20);
mRenderer.setLabelsTextSize(15);
mRenderer.setLegendTextSize(15);
mRenderer.setPointSize(3f);
mRenderer.setPanEnabled(true, true);
mRenderer.setZoomEnabled(true, true);
mRenderer.addSeriesRenderer(r2);
mRenderer.setClickEnabled(true);
mRenderer.setSelectableBuffer(20);
mRenderer.setPanEnabled(true);
mRenderer.setChartTitle("Temperature");
mRenderer.setXTitle("Time");
mRenderer.setYTitle("Degrees C");
mRenderer.setZoomButtonsVisible(true);
mRenderer.setZoomEnabled(true);
mRenderer.setXLabels(12);
mRenderer.setYLabels(10);
mRenderer.setShowGrid(true);
mRenderer.setXLabelsAlign(Align.RIGHT);
mRenderer.setYLabelsAlign(Align.RIGHT);
mChartView = ChartFactory.getTimeChartView(this, mDataset, mRenderer,
"HH:mm:ss");
layout.addView(mChartView);
}
}
You have only one Series in this code. Where is the code where you try to add another series?
The general approach is this:
mDataset.addSeries(0, time_series);
mRenderer.addSeriesRenderer(0, time_renderer);
//...
//...
mDataset.addSeries(1, some_other_series);
mRenderer.addSeriesRenderer(1, some_other_renderer);
//...
//...
I want to use line chart in my application, I want to show it in below the image which is setting as background image for linear layout 1, in 2nd linear layout i want to add line chart, I'm using achart engine libraries. Null pointer exception at line 66(layout.addView(mChartView, new LayoutParams( LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));) please help
package com.android.linegraph;
import java.util.ArrayList;
import java.util.List;
import org.achartengine.ChartFactory;
import org.achartengine.GraphicalView;
import org.achartengine.chart.PointStyle;
import org.achartengine.model.XYMultipleSeriesDataset;
import org.achartengine.model.XYSeries;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer;
import android.app.Activity;
import android.graphics.Color;
import android.graphics.Paint.Align;
import android.os.Bundle;
import android.util.Log;
import android.view.ViewGroup.LayoutParams;
import android.widget.LinearLayout;
public class LineGraph extends Activity {
private GraphicalView mChartView;
XYMultipleSeriesRenderer renderer;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
LinearLayout layout = (LinearLayout) findViewById(R.id.linearLayout2);
String[] titles = new String[] { "spens1" };
List<double[]> x = new ArrayList<double[]>();
x.add(new double[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 });
// }
List<double[]> values = new ArrayList<double[]>();
values
.add(new double[] { 9, 10, 11, 15, 19, 23, 26, 25, 22, 18, 13,
10 });
int[] colors = new int[] { Color.BLUE };
PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE };
renderer = buildRenderer(colors, styles);
int length = renderer.getSeriesRendererCount();
for (int i = 0; i < length; i++) {
((XYSeriesRenderer) renderer.getSeriesRendererAt(i))
.setFillPoints(true);
}
setChartSettings(renderer, "SCORE CARD VIEW", "Attetempts",
"Marks Scored", 0.5, 12.5, -10, 40, Color.LTGRAY, Color.LTGRAY);
renderer.setXLabels(12);
renderer.setYLabels(10);
renderer.setShowGrid(true);
renderer.setXLabelsAlign(Align.RIGHT);
renderer.setYLabelsAlign(Align.RIGHT);
renderer.setZoomButtonsVisible(true);
renderer.setPanLimits(new double[] { -10, 20, -10, 40 });
renderer.setZoomLimits(new double[] { -10, 20, -10, 40 });
if (mChartView == null) {
Log.d("Oncreate ", "if (mChartView == null)");
mChartView = ChartFactory.getLineChartView(this, mDataset(titles,
x, values), renderer);
layout.addView(mChartView, new LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
} else {
// mChartView.repaint();
Log.d("Oncreate ", "if (mChartView != null)");
}
}
private void setChartSettings(XYMultipleSeriesRenderer renderer3,
String title, String xTitle, String yTitle, double xMin,
double xMax, double yMin, double yMax, int axesColor,
int labelsColor) {
// TODO Auto-generated method stub
renderer3.setChartTitle(title);
renderer3.setXTitle(xTitle);
renderer3.setYTitle(yTitle);
renderer3.setXAxisMin(xMin);
renderer3.setXAxisMax(xMax);
renderer3.setYAxisMin(yMin);
renderer3.setYAxisMax(yMax);
renderer3.setAxesColor(axesColor);
renderer3.setLabelsColor(labelsColor);
}
private XYMultipleSeriesRenderer buildRenderer(int[] colors,
PointStyle[] styles) {
// TODO Auto-generated method stub
XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
setRenderer(renderer, colors, styles);
return renderer;
}
private void setRenderer(XYMultipleSeriesRenderer renderer2, int[] colors,
PointStyle[] styles) {
// TODO Auto-generated method stub
renderer2.setAxisTitleTextSize(16);
renderer2.setChartTitleTextSize(20);
renderer2.setLabelsTextSize(15);
renderer2.setLegendTextSize(15);
renderer2.setPointSize(5f);
renderer2.setMargins(new int[] { 20, 30, 15, 20 });
int length = colors.length;
for (int i = 0; i < length; i++) {
XYSeriesRenderer r = new XYSeriesRenderer();
r.setColor(colors[i]);
r.setPointStyle(styles[i]);
renderer2.addSeriesRenderer(r);
}
}
private XYMultipleSeriesDataset mDataset(String[] titles,
List<double[]> xValues, List<double[]> yValues) {
// TODO Auto-generated method stub
XYMultipleSeriesDataset dataset1 = new XYMultipleSeriesDataset();
addXYSeries(dataset1, titles, xValues, yValues, 0);
return dataset1;
}
private void addXYSeries(XYMultipleSeriesDataset dataset, String[] titles,
List<double[]> xValues, List<double[]> yValues, int scale) {
// TODO Auto-generated method stub
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);
}
}
}
<RelativeLayout android:id="#+id/relativeLayout1"
android:layout_width="fill_parent" android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout android:id="#+id/linearLayout1"
android:background="#drawable/cricket" android:layout_alignParentLeft="true"
android:layout_height="wrap_content" android:layout_width="wrap_content"></LinearLayout>
<LinearLayout android:id="#+id/linearLayout2"
android:layout_below="#id/linearLayout1"
android:layout_alignParentLeft="true" android:layout_height="wrap_content"
android:layout_width="wrap_content"></LinearLayout>
</RelativeLayout>
I can't test this in practice now, but I think you are missing a call to
setContentView(R.layout.NAME_OF_YOUR_XML_FILE);
this could e.g. be after this line:
super.onCreate(savedInstanceState);
Without this the layout variable is null, thus causing the exception (my guess).