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copied!<p>I had same problem in two weeks ago. But I had pieChart in xml layer combine other views. Anyway, I create an activity for each tab and chart, and call the activities instead of charts. In one of my activity I have this snipped code:</p> <pre><code>public class FirstChartActivity extends Activity{ // other code protected void onResume() { super.onResume(); if (hChartView == null) { // first time pie chart is empty renderer = buildCategoryRenderer(colors); renderer.setLabelsTextSize(14); categorySeries = setCategorySeries("First PieChart", myList); // draw pie chart with initialized values (myList and colors) hChartView = ChartFactory.getPieChartView(this, categorySeries, renderer); LinearLayout layout = (LinearLayout) findViewById(R.id.pch_chart); layout.addView(hChartView, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); } else { hChartView.repaint(); } } 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 setCategorySeries(String chartTitle, HashMap<String, Double> hashMap) { CategorySeries cs = new CategorySeries(chartTitle); Iterator<String> iter = hashMap.keySet().iterator(); while (iter.hasNext()) { String key = iter.next(); Double val = hashMap.get(key); cs.add(key, val); } return cs; } } </code></pre> <p>I hope this code help you.</p>

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