Android Open Source - Amazing-Listview--Multiheader-Listview- Section Demo Activity

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License

The source code is released under:

Apache License

Java Source Code

package com.foound.amazinglistview.demo;
/*www  .  j  a v a2 s.c om*/
import android.app.*;
import android.os.*;
import android.util.*;
import android.view.*;
import android.widget.*;

import java.util.*;

import com.foound.widget.*;

public class SectionDemoActivity extends Activity {
  AmazingListView lsComposer;
  SectionComposerAdapter adapter;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_section_demo);
    
    lsComposer = (AmazingListView) findViewById(R.id.lsComposer);
    lsComposer.setPinnedHeaderView(LayoutInflater.from(this).inflate(R.layout.item_composer_header, lsComposer, false));
    lsComposer.setAdapter(adapter = new SectionComposerAdapter());
  }
  
  class SectionComposerAdapter extends AmazingAdapter {
    List<Pair<String, List<Composer>>> all = Data.getAllData();

    @Override
    public int getCount() {
      int res = 0;
      for (int i = 0; i < all.size(); i++) {
        res += all.get(i).second.size();
      }
      return res;
    }

    @Override
    public Composer getItem(int position) {
      int c = 0;
      for (int i = 0; i < all.size(); i++) {
        if (position >= c && position < c + all.get(i).second.size()) {
          return all.get(i).second.get(position - c);
        }
        c += all.get(i).second.size();
      }
      return null;
    }

    @Override
    public long getItemId(int position) {
      return position;
    }

    @Override
    protected void onNextPageRequested(int page) {
    }

    @Override
    protected void bindSectionHeader(View view, int position, boolean displaySectionHeader) {
      if (displaySectionHeader) {
        view.findViewById(R.id.header).setVisibility(View.VISIBLE);
        TextView lSectionTitle = (TextView) view.findViewById(R.id.header);
        lSectionTitle.setText(getSections()[getSectionForPosition(position)]);
      } else {
        view.findViewById(R.id.header).setVisibility(View.GONE);
      }
    }

    @Override
    public View getAmazingView(int position, View convertView, ViewGroup parent) {
      View res = convertView;
      if (res == null) res = getLayoutInflater().inflate(R.layout.item_composer, null);
      
      TextView lName = (TextView) res.findViewById(R.id.lName);
      TextView lYear = (TextView) res.findViewById(R.id.lYear);
      
      Composer composer = getItem(position);
      lName.setText(composer.name);
      lYear.setText(composer.year);
      
      return res;
    }

    @Override
    public void configurePinnedHeader(View header, int position, int alpha) {
      TextView lSectionHeader = (TextView)header;
      lSectionHeader.setText(getSections()[getSectionForPosition(position)]);
      lSectionHeader.setBackgroundColor(alpha << 24 | (0xbbffbb));
      lSectionHeader.setTextColor(alpha << 24 | (0x000000));
    }

    @Override
    public int getPositionForSection(int section) {
      if (section < 0) section = 0;
      if (section >= all.size()) section = all.size() - 1;
      int c = 0;
      for (int i = 0; i < all.size(); i++) {
        if (section == i) { 
          return c;
        }
        c += all.get(i).second.size();
      }
      return 0;
    }

    @Override
    public int getSectionForPosition(int position) {
      int c = 0;
      for (int i = 0; i < all.size(); i++) {
        if (position >= c && position < c + all.get(i).second.size()) {
          return i;
        }
        c += all.get(i).second.size();
      }
      return -1;
    }

    @Override
    public String[] getSections() {
      String[] res = new String[all.size()];
      for (int i = 0; i < all.size(); i++) {
        res[i] = all.get(i).first;
      }
      return res;
    }
    
  }
}

Java Source Code List

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