Android Open Source - customhellochartdemo Main Activity

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License

The source code is released under:
Apache License
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Java Source Code

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
  }

}
Java Source Code List
