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POpie chart not displayed in my application ,am using achartengine library for graph?
 

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    <p>Am developing one apps in this i have to display pie chart , Am importing achartengine lib into my apps .the demo version of achartengine work fine it show the graph .But wen i use that into my apps nothing will displaying.anybody help me to solve this problem.</p> <p>This is my code:</p> <p>Main Activity:</p> <pre><code>public class HomeScreenPage extends Activity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.homescreenpage); PieChart achartIntent = new PieChart(); achartIntent.execute(this); } </code></pre> <p>Piechart class :</p> <pre><code>import org.achartengine.ChartFactory; import org.achartengine.model.CategorySeries; import org.achartengine.renderer.DefaultRenderer; import org.achartengine.renderer.SimpleSeriesRenderer; import android.content.Context; import android.content.Intent; import android.graphics.Color; public class PieChart { public Intent execute(Context context) { double[] values = new double[] {12, 14, 11, 10,2}; int[] colors = new int[] {Color.BLUE, Color.GREEN, Color.MAGENTA, Color.YELLOW, Color.CYAN}; DefaultRenderer renderer = buildCategoryRenderer(colors); renderer.setLabelsTextSize(10); return ChartFactory.getPieChartIntent(context, buildCategoryDataset("Project budget", values), renderer); } protected DefaultRenderer buildCategoryRenderer(int[] colors) { DefaultRenderer renderer = new DefaultRenderer(); for (int color : colors) { SimpleSeriesRenderer r = new SimpleSeriesRenderer(); r.setColor(color); renderer.addSeriesRenderer(r); } return renderer; } protected CategorySeries buildCategoryDataset(String title, double[] values) { CategorySeries series = new CategorySeries(title); int k = 0; for (double value : values) { series.add("Project " + ++k, value); } return series; } } </code></pre>
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