package lecho.lib.hellocharts.samples;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RelativeLayout;
import java.util.ArrayList;
import java.util.List;
import lecho.lib.hellocharts.gesture.ContainerScrollType;
import lecho.lib.hellocharts.gesture.ZoomType;
import lecho.lib.hellocharts.model.Axis;
import lecho.lib.hellocharts.model.BubbleChartData;
import lecho.lib.hellocharts.model.BubbleValue;
import lecho.lib.hellocharts.model.Column;
import lecho.lib.hellocharts.model.ColumnChartData;
import lecho.lib.hellocharts.model.Line;
import lecho.lib.hellocharts.model.LineChartData;
import lecho.lib.hellocharts.model.PieChartData;
import lecho.lib.hellocharts.model.PointValue;
import lecho.lib.hellocharts.model.SliceValue;
import lecho.lib.hellocharts.model.SubcolumnValue;
import lecho.lib.hellocharts.model.Viewport;
import lecho.lib.hellocharts.util.ChartUtils;
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.PreviewLineChartView;
public class ViewPagerChartsActivity extends ActionBarActivity implements ActionBar.TabListener {
/**
* The {@link android.support.v4.view.PagerAdapter} that will provide fragments for each of the sections. We use a
* {@link FragmentPagerAdapter} derivative, which will keep every loaded fragment in memory. If this becomes too
* memory intensive, it may be best to switch to a {@link android.support.v4.app.FragmentStatePagerAdapter}.
*/
SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {@link ViewPager} that will host the section contents.
*/
ViewPager mViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_view_pager_charts);
// Set up the action bar.
final ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
// When swiping between different sections, select the corresponding
// tab. We can also use ActionBar.Tab#select() to do this if we have
// a reference to the Tab.
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
// For each of the sections in the app, add a tab to the action bar.
for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
// Create a tab with text corresponding to the page title defined by
// the adapter. Also specify this Activity object, which implements
// the TabListener interface, as the callback (listener) for when
// this tab is selected.
actionBar.addTab(actionBar.newTab().setText(mSectionsPagerAdapter.getPageTitle(i)).setTabListener(this));
}
}
@Override
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
// When the given tab is selected, switch to the corresponding page in
// the ViewPager.
mViewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
@Override
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
public PlaceholderFragment() {
}
/**
* Returns a new instance of this fragment for the given section number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_view_pager_charts, container, false);
RelativeLayout layout = (RelativeLayout) rootView;
int sectionNum = getArguments().getInt(ARG_SECTION_NUMBER);
switch (sectionNum) {
case 1:
LineChartView lineChartView = new LineChartView(getActivity());
lineChartView.setLineChartData(generateLineChartData());
lineChartView.setZoomType(ZoomType.HORIZONTAL);
/** Note: Chart is within ViewPager so enable container scroll mode. **/
lineChartView.setContainerScrollEnabled(true, ContainerScrollType.HORIZONTAL);
layout.addView(lineChartView);
break;
case 2:
ColumnChartView columnChartView = new ColumnChartView(getActivity());
columnChartView.setColumnChartData(generateColumnChartData());
columnChartView.setZoomType(ZoomType.HORIZONTAL);
/** Note: Chart is within ViewPager so enable container scroll mode. **/
columnChartView.setContainerScrollEnabled(true, ContainerScrollType.HORIZONTAL);
layout.addView(columnChartView);
break;
case 3:
BubbleChartView bubbleChartView = new BubbleChartView(getActivity());
bubbleChartView.setBubbleChartData(generateBubbleChartData());
bubbleChartView.setZoomType(ZoomType.HORIZONTAL_AND_VERTICAL);
/** Note: Chart is within ViewPager so enable container scroll mode. **/
bubbleChartView.setContainerScrollEnabled(true, ContainerScrollType.HORIZONTAL);
layout.addView(bubbleChartView);
break;
case 4:
PreviewLineChartView previewLineChartView = new PreviewLineChartView(getActivity());
previewLineChartView.setLineChartData(generatePreviewLineChartData());
/** Note: Chart is within ViewPager so enable container scroll mode. **/
previewLineChartView.setContainerScrollEnabled(true, ContainerScrollType.HORIZONTAL);
Viewport tempViewport = new Viewport(previewLineChartView.getMaximumViewport());
float dx = tempViewport.width() / 6;
tempViewport.inset(dx, 0);
previewLineChartView.setCurrentViewport(tempViewport);
previewLineChartView.setZoomType(ZoomType.HORIZONTAL);
layout.addView(previewLineChartView);
break;
case 5:
PieChartView pieChartView = new PieChartView(getActivity());
pieChartView.setPieChartData(generatePieChartData());
/** Note: Chart is within ViewPager so enable container scroll mode. **/
pieChartView.setContainerScrollEnabled(true, ContainerScrollType.HORIZONTAL);
layout.addView(pieChartView);
break;
}
return rootView;
}
private LineChartData generateLineChartData() {
int numValues = 20;
List<PointValue> values = new ArrayList<PointValue>();
for (int i = 0; i < numValues; ++i) {
values.add(new PointValue(i, (float) Math.random() * 100f));
}
Line line = new Line(values);
line.setColor(ChartUtils.COLOR_GREEN);
List<Line> lines = new ArrayList<Line>();
lines.add(line);
LineChartData data = new LineChartData(lines);
data.setAxisXBottom(new Axis().setName("Axis X"));
data.setAxisYLeft(new Axis().setName("Axis Y").setHasLines(true));
return data;
}
private ColumnChartData generateColumnChartData() {
int numSubcolumns = 1;
int numColumns = 12;
// Column can have many subcolumns, here by default I use 1 subcolumn in each of 8 columns.
List<Column> columns = new ArrayList<Column>();
List<SubcolumnValue> values;
for (int i = 0; i < numColumns; ++i) {
values = new ArrayList<SubcolumnValue>();
for (int j = 0; j < numSubcolumns; ++j) {
values.add(new SubcolumnValue((float) Math.random() * 50f + 5, ChartUtils.pickColor()));
}
columns.add(new Column(values));
}
ColumnChartData data = new ColumnChartData(columns);
data.setAxisXBottom(new Axis().setName("Axis X"));
data.setAxisYLeft(new Axis().setName("Axis Y").setHasLines(true));
return data;
}
private BubbleChartData generateBubbleChartData() {
int numBubbles = 10;
List<BubbleValue> values = new ArrayList<BubbleValue>();
for (int i = 0; i < numBubbles; ++i) {
BubbleValue value = new BubbleValue(i, (float) Math.random() * 100, (float) Math.random() * 1000);
value.setColor(ChartUtils.pickColor());
values.add(value);
}
BubbleChartData data = new BubbleChartData(values);
data.setAxisXBottom(new Axis().setName("Axis X"));
data.setAxisYLeft(new Axis().setName("Axis Y").setHasLines(true));
return data;
}
private LineChartData generatePreviewLineChartData() {
int numValues = 50;
List<PointValue> values = new ArrayList<PointValue>();
for (int i = 0; i < numValues; ++i) {
values.add(new PointValue(i, (float) Math.random() * 100f));
}
Line line = new Line(values);
line.setColor(ChartUtils.DEFAULT_DARKEN_COLOR);
line.setHasPoints(false);// too many values so don't draw points.
List<Line> lines = new ArrayList<Line>();
lines.add(line);
LineChartData data = new LineChartData(lines);
data.setAxisXBottom(new Axis());
data.setAxisYLeft(new Axis().setHasLines(true));
return data;
}
private PieChartData generatePieChartData() {
int numValues = 6;
List<SliceValue> values = new ArrayList<SliceValue>();
for (int i = 0; i < numValues; ++i) {
values.add(new SliceValue((float) Math.random() * 30 + 15, ChartUtils.pickColor()));
}
PieChartData data = new PieChartData(values);
return data;
}
}
/**
* A {@link FragmentPagerAdapter} that returns a fragment corresponding to one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class below).
return PlaceholderFragment.newInstance(position + 1);
}
@Override
public int getCount() {
return 5;
}
@Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "LineChart";
case 1:
return "ColumnChart";
case 2:
return "BubbleChart";
case 3:
return "PreviewLineChart";
case 4:
return "PieChart";
}
return null;
}
}
}
