Android Open Source - PullToRefresh-PinnedSection-ListView Sample Activity






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License

The source code is released under:

MIT License

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Java Source Code

/*
 * Copyright (C) 2013 Sergej Shafarenka, halfbit.de
 *//  w w  w. ja v  a  2  s  . c om
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.hb.examples;

import java.util.Locale;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.text.format.DateUtils;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SectionIndexer;
import android.widget.TextView;
import android.widget.Toast;

import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshPinnedSectionListView;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener;
import com.hb.examples.pinnedsection.R;
import com.hb.views.PinnedSectionListView;
import com.hb.views.PinnedSectionListView.PinnedSectionListAdapter;

public class SampleActivity extends Activity implements OnClickListener {

    static class SimpleAdapter extends ArrayAdapter<Item> implements PinnedSectionListAdapter {

        private static final int[] COLORS = new int[] {
            R.color.green_light, R.color.orange_light,
            R.color.blue_light, R.color.red_light };

        public SimpleAdapter(Context context, int resource, int textViewResourceId) {
            super(context, resource, textViewResourceId);

            final int sectionsNumber = 'Z' - 'A' + 1;
            prepareSections(sectionsNumber);

            int sectionPosition = 0, listPosition = 0;
            for (char i=0; i<sectionsNumber; i++) {
                Item section = new Item(Item.SECTION, String.valueOf((char)('A' + i)));
                section.sectionPosition = sectionPosition;
                section.listPosition = listPosition++;
                onSectionAdded(section, sectionPosition);
                add(section);

                final int itemsNumber = (int) Math.abs((Math.cos(2f*Math.PI/3f * sectionsNumber / (i+1f)) * 25f));
                for (int j=0;j<itemsNumber;j++) {
                    Item item = new Item(Item.ITEM, section.text.toUpperCase(Locale.ENGLISH) + " - " + j);
                    item.sectionPosition = sectionPosition;
                    item.listPosition = listPosition++;
                    add(item);
                }

                sectionPosition++;
            }
        }

        protected void prepareSections(int sectionsNumber) { }
        protected void onSectionAdded(Item section, int sectionPosition) { }

        @Override public View getView(int position, View convertView, ViewGroup parent) {
            TextView view = (TextView) super.getView(position, convertView, parent);
            view.setTextColor(Color.DKGRAY);
            view.setTag("" + position);
            Item item = getItem(position);
            if (item.type == Item.SECTION) {
                //view.setOnClickListener(PinnedSectionListActivity.this);
                view.setBackgroundColor(parent.getResources().getColor(COLORS[item.sectionPosition % COLORS.length]));
            }
            return view;
        }

        @Override public int getViewTypeCount() {
            return 2;
        }

        @Override public int getItemViewType(int position) {
            return getItem(position).type;
        }

        @Override
        public boolean isItemViewTypePinned(int viewType) {
            return viewType == Item.SECTION;
        }

    }

    static class FastScrollAdapter extends SimpleAdapter implements SectionIndexer {

        private Item[] sections;

        public FastScrollAdapter(Context context, int resource, int textViewResourceId) {
            super(context, resource, textViewResourceId);
        }

        @Override protected void prepareSections(int sectionsNumber) {
            sections = new Item[sectionsNumber];
        }

        @Override protected void onSectionAdded(Item section, int sectionPosition) {
            sections[sectionPosition] = section;
        }

        @Override public Item[] getSections() {
            return sections;
        }

        @Override public int getPositionForSection(int section) {
            if (section >= sections.length) {
                section = sections.length - 1;
            }
            return sections[section].listPosition;
        }

        @Override public int getSectionForPosition(int position) {
            if (position >= getCount()) {
                position = getCount() - 1;
            }
            return getItem(position).sectionPosition;
        }

    }

  static class Item {

    public static final int ITEM = 0;
    public static final int SECTION = 1;

    public final int type;
    public final String text;

    public int sectionPosition;
    public int listPosition;

    public Item(int type, String text) {
        this.type = type;
        this.text = text;
    }

    @Override public String toString() {
      return text;
    }

  }

  private boolean hasHeaderAndFooter;
  private boolean isFastScroll;
  private boolean addPadding;
  private boolean isShadowVisible = true;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    if (savedInstanceState != null) {
        isFastScroll = savedInstanceState.getBoolean("isFastScroll");
        addPadding = savedInstanceState.getBoolean("addPadding");
        isShadowVisible = savedInstanceState.getBoolean("isShadowVisible");
        hasHeaderAndFooter = savedInstanceState.getBoolean("hasHeaderAndFooter");
    }
    initializeHeaderAndFooter();
    initializeAdapter();
    initializePadding();
  }

    @Override
  protected void onSaveInstanceState(Bundle outState) {
      super.onSaveInstanceState(outState);
      outState.putBoolean("isFastScroll", isFastScroll);
      outState.putBoolean("addPadding", addPadding);
      outState.putBoolean("isShadowVisible", isShadowVisible);
      outState.putBoolean("hasHeaderAndFooter", hasHeaderAndFooter);
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main, menu);
    menu.getItem(0).setChecked(isFastScroll);
    menu.getItem(1).setChecked(addPadding);
    menu.getItem(2).setChecked(isShadowVisible);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
      switch (item.getItemId()) {
          case R.id.action_fastscroll:
              isFastScroll = !isFastScroll;
              item.setChecked(isFastScroll);
              initializeAdapter();
              break;
          case R.id.action_addpadding:
              addPadding = !addPadding;
              item.setChecked(addPadding);
              initializePadding();
              break;
          case R.id.action_showShadow:
              isShadowVisible = !isShadowVisible;
              item.setChecked(isShadowVisible);
              ((PinnedSectionListView)getListView()).setShadowVisible(isShadowVisible);
              break;
          case R.id.action_showHeaderAndFooter:
              hasHeaderAndFooter = !hasHeaderAndFooter;
              item.setChecked(hasHeaderAndFooter);
              initializeHeaderAndFooter();
              break;
      }
      return true;
  }

  private void initializePadding() {
      float density = getResources().getDisplayMetrics().density;
      int padding = addPadding ? (int) (16 * density) : 0;
      getListView().setPadding(padding, padding, padding, padding);
  }

  private PullToRefreshPinnedSectionListView mpPullToRefreshPinnedSectionListView;
  
  public ListView getListView() {
    if (mpPullToRefreshPinnedSectionListView == null) {
      mpPullToRefreshPinnedSectionListView = (PullToRefreshPinnedSectionListView) findViewById(R.id.list);
      mpPullToRefreshPinnedSectionListView.setOnRefreshListener(new OnRefreshListener<ListView>() {
        @Override
        public void onRefresh(PullToRefreshBase<ListView> refreshView) {
          String label = DateUtils.formatDateTime(getApplicationContext(), System.currentTimeMillis(),
              DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_ABBREV_ALL);

          // Update the LastUpdatedLabel
          refreshView.getLoadingLayoutProxy().setLastUpdatedLabel(label);

          // Do work to refresh the list here.
//          new GetDataTask().execute();
        }
      });
      mpPullToRefreshPinnedSectionListView
          .setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1,
                int arg2, long arg3) {
              Item item = (Item) getListView().getAdapter()
                  .getItem(arg2);
              if (item != null) {
                Toast.makeText(SampleActivity.this,
                    "Item " + arg2 + ": " + item.text,
                    Toast.LENGTH_SHORT).show();
              } else {
                Toast.makeText(SampleActivity.this,
                    "Item " + arg2, Toast.LENGTH_SHORT)
                    .show();
              }

            }
          });
    }
    return mpPullToRefreshPinnedSectionListView.getRefreshableView();
  }
  
   private void setListAdapter(Object object) {
     getListView().setAdapter((ListAdapter) object);
    }
  
    private void initializeHeaderAndFooter() {
        setListAdapter(null);
        if (hasHeaderAndFooter) {
          
          mpPullToRefreshPinnedSectionListView  = (PullToRefreshPinnedSectionListView) findViewById(R.id.list);
          
            ListView list = getListView();

            LayoutInflater inflater = LayoutInflater.from(this);
            TextView header1 = (TextView) inflater.inflate(android.R.layout.simple_list_item_1, list, false);
            header1.setText("First header");
            list.addHeaderView(header1);

            TextView header2 = (TextView) inflater.inflate(android.R.layout.simple_list_item_1, list, false);
            header2.setText("Second header");
            list.addHeaderView(header2);

            TextView footer = (TextView) inflater.inflate(android.R.layout.simple_list_item_1, list, false);
            footer.setText("Single footer");
            list.addFooterView(footer);
        }
        initializeAdapter();
    }

  @SuppressLint("NewApi")
    private void initializeAdapter() {
        getListView().setFastScrollEnabled(isFastScroll);
        if (isFastScroll) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
                getListView().setFastScrollAlwaysVisible(true);
            }
            setListAdapter(new FastScrollAdapter(this, android.R.layout.simple_list_item_1, android.R.id.text1));
        } else {
            setListAdapter(new SimpleAdapter(this, android.R.layout.simple_list_item_1, android.R.id.text1));
        }
    }

    @Override
    public void onClick(View v) {
        Toast.makeText(this, "Item: " + v.getTag() , Toast.LENGTH_SHORT).show();
    }

}




Java Source Code List

com.handmark.pulltorefresh.library.ILoadingLayout.java
com.handmark.pulltorefresh.library.IPullToRefresh.java
com.handmark.pulltorefresh.library.LoadingLayoutProxy.java
com.handmark.pulltorefresh.library.OverscrollHelper.java
com.handmark.pulltorefresh.library.PullToRefreshAdapterViewBase.java
com.handmark.pulltorefresh.library.PullToRefreshBase.java
com.handmark.pulltorefresh.library.PullToRefreshExpandableListView.java
com.handmark.pulltorefresh.library.PullToRefreshGridView.java
com.handmark.pulltorefresh.library.PullToRefreshHorizontalScrollView.java
com.handmark.pulltorefresh.library.PullToRefreshListView.java
com.handmark.pulltorefresh.library.PullToRefreshPinnedSectionListView.java
com.handmark.pulltorefresh.library.PullToRefreshScrollView.java
com.handmark.pulltorefresh.library.PullToRefreshWebView.java
com.handmark.pulltorefresh.library.extras.PullToRefreshWebView2.java
com.handmark.pulltorefresh.library.extras.SoundPullEventListener.java
com.handmark.pulltorefresh.library.internal.EmptyViewMethodAccessor.java
com.handmark.pulltorefresh.library.internal.FlipLoadingLayout.java
com.handmark.pulltorefresh.library.internal.IndicatorLayout.java
com.handmark.pulltorefresh.library.internal.LoadingLayout.java
com.handmark.pulltorefresh.library.internal.RotateLoadingLayout.java
com.handmark.pulltorefresh.library.internal.Utils.java
com.handmark.pulltorefresh.library.internal.ViewCompat.java
com.hb.examples.SampleActivity.java
com.hb.views.PinnedSectionListView.java