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The source code is released under:
Apache License
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package lecho.lib.hellocharts.samples; //from www . j av a 2s .c o m import java.util.ArrayList; import java.util.List; import lecho.lib.hellocharts.view.AbstractChartView; import lecho.lib.hellocharts.view.BubbleChartView; import lecho.lib.hellocharts.view.ColumnChartView; import lecho.lib.hellocharts.view.LineChartView; import lecho.lib.hellocharts.view.PieChartView; import lecho.lib.hellocharts.view.PreviewColumnChartView; import lecho.lib.hellocharts.view.PreviewLineChartView; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v7.app.ActionBarActivity; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.FrameLayout; import android.widget.ListView; import android.widget.TextView; public class MainActivity extends ActionBarActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); if (savedInstanceState == null) { getSupportFragmentManager().beginTransaction().add(R.id.container, new PlaceholderFragment()).commit(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); if (id == R.id.action_about) { Intent intent = new Intent(this, AboutActivity.class); startActivity(intent); return true; } return super.onOptionsItemSelected(item); } /** * A placeholder fragment containing a simple view. */ public static class PlaceholderFragment extends Fragment implements OnItemClickListener { private ListView listView; private ChartSamplesAdapter adapter; public PlaceholderFragment() { } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_main, container, false); listView = (ListView) rootView.findViewById(android.R.id.list); adapter = new ChartSamplesAdapter(getActivity(), 0, generateSamplesDescriptions()); listView.setAdapter(adapter); listView.setOnItemClickListener(this); return rootView; } @Override public void onItemClick(AdapterView<?> adapter, View view, int position, long id) { Intent intent; switch (position) { case 0: // Line Chart; intent = new Intent(getActivity(), BrokenLineChartActivity.class); startActivity(intent); break; case 1: // Line Chart; intent = new Intent(getActivity(), LineChartActivity.class); startActivity(intent); break; case 2: // Column Chart; intent = new Intent(getActivity(), ColumnChartActivity.class); startActivity(intent); break; case 3: // Pie Chart; intent = new Intent(getActivity(), PieChartActivity.class); startActivity(intent); break; case 4: // Bubble Chart; intent = new Intent(getActivity(), BubbleChartActivity.class); startActivity(intent); break; case 5: // Preview Line Chart; intent = new Intent(getActivity(), PreviewLineChartActivity.class); startActivity(intent); break; case 6: // Preview Column Chart; intent = new Intent(getActivity(), PreviewColumnChartActivity.class); startActivity(intent); break; case 7: // Combo Chart; intent = new Intent(getActivity(), ComboLineColumnChartActivity.class); startActivity(intent); break; case 8: // Line Column Dependency; intent = new Intent(getActivity(), LineColumnDependencyActivity.class); startActivity(intent); break; case 9: // Tempo line chart; intent = new Intent(getActivity(), TempoChartActivity.class); startActivity(intent); break; case 10: // Speed line chart; intent = new Intent(getActivity(), SpeedChartActivity.class); startActivity(intent); break; case 11: // Good Bad filled line chart; intent = new Intent(getActivity(), GoodBadChartActivity.class); startActivity(intent); break; case 12: // Good Bad filled line chart; intent = new Intent(getActivity(), ViewPagerChartsActivity.class); startActivity(intent); break; default: break; } } private List<ChartSampleDescription> generateSamplesDescriptions() { List<ChartSampleDescription> list = new ArrayList<MainActivity.ChartSampleDescription>(); list.add(new ChartSampleDescription("Custom BrokenLine Chart", "", ChartType.LINE_CHART)); list.add(new ChartSampleDescription("Line Chart", "", ChartType.LINE_CHART)); list.add(new ChartSampleDescription("Column Chart", "", ChartType.COLUMN_CHART)); list.add(new ChartSampleDescription("Pie Chart", "", ChartType.PIE_CHART)); list.add(new ChartSampleDescription("Bubble Chart", "", ChartType.BUBBLE_CHART)); list.add(new ChartSampleDescription("Preview Line Chart", "Control line chart viewport with another line chart.", ChartType.PREVIEW_LINE_CHART)); list.add(new ChartSampleDescription("Preview Column Chart", "Control column chart viewport with another column chart.", ChartType.PREVIEW_COLUMN_CHART)); list.add(new ChartSampleDescription("Combo Line/Column Chart", "Combo chart with lines and columns.", ChartType.OTHER)); list.add(new ChartSampleDescription("Line/Column Chart Dependency", "LineChart responds(with animation) to column chart value selection.", ChartType.OTHER)); list.add(new ChartSampleDescription( "Tempo Chart", "Presents tempo and height values on a signle chart. Example of multiple axes and reverted Y axis with time format [mm:ss].", ChartType.OTHER)); list.add(new ChartSampleDescription("Speed Chart", "Presents speed and height values on a signle chart. Exapmle of multiple axes inside chart area.", ChartType.OTHER)); list.add(new ChartSampleDescription("Good/Bad Chart", "Example of filled area line chart with custom labels", ChartType.OTHER)); list.add(new ChartSampleDescription("ViewPager with Charts", "Interactive charts within ViewPager. Each chart can be zoom/scroll except pie chart.", ChartType.OTHER)); return list; } } public static class ChartSamplesAdapter extends ArrayAdapter<ChartSampleDescription> { public ChartSamplesAdapter(Context context, int resource, List<ChartSampleDescription> objects) { super(context, resource, objects); } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { convertView = View.inflate(getContext(), R.layout.list_item_sample, null); holder = new ViewHolder(); holder.text1 = (TextView) convertView.findViewById(R.id.text1); holder.text2 = (TextView) convertView.findViewById(R.id.text2); holder.chartLayout = (FrameLayout) convertView.findViewById(R.id.chart_layout); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } ChartSampleDescription item = getItem(position); holder.chartLayout.setVisibility(View.VISIBLE); holder.chartLayout.removeAllViews(); AbstractChartView chart; switch (item.chartType) { case LINE_CHART: chart = new LineChartView(getContext()); holder.chartLayout.addView(chart); break; case COLUMN_CHART: chart = new ColumnChartView(getContext()); holder.chartLayout.addView(chart); break; case PIE_CHART: chart = new PieChartView(getContext()); holder.chartLayout.addView(chart); break; case BUBBLE_CHART: chart = new BubbleChartView(getContext()); holder.chartLayout.addView(chart); break; case PREVIEW_LINE_CHART: chart = new PreviewLineChartView(getContext()); holder.chartLayout.addView(chart); break; case PREVIEW_COLUMN_CHART: chart = new PreviewColumnChartView(getContext()); holder.chartLayout.addView(chart); break; default: chart = null; holder.chartLayout.setVisibility(View.GONE); break; } if (null != chart) { chart.setInteractive(false);// Disable touch handling for chart on the ListView. } holder.text1.setText(item.text1); holder.text2.setText(item.text2); return convertView; } private class ViewHolder { TextView text1; TextView text2; FrameLayout chartLayout; } } public static class ChartSampleDescription { String text1; String text2; ChartType chartType; public ChartSampleDescription(String text1, String text2, ChartType chartType) { this.text1 = text1; this.text2 = text2; this.chartType = chartType; } } public enum ChartType { CUSTOM_BROKEN_LINE_CHART,LINE_CHART, COLUMN_CHART, PIE_CHART, BUBBLE_CHART, PREVIEW_LINE_CHART, PREVIEW_COLUMN_CHART, OTHER } }