Android Open Source - Munin-for-Android Adapter_ Separated List

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License

The source code is released under:
GNU General Public License
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Java Source Code

package com.chteuchteu.munin.adptr;
/*  w w  w.j av a2s .  c om*/
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Adapter;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.TextView;

import com.chteuchteu.munin.R;
import com.chteuchteu.munin.hlpr.Util;
import com.chteuchteu.munin.hlpr.Util.Fonts.CustomFont;

import java.util.LinkedHashMap;
import java.util.Map;

public class Adapter_SeparatedList extends BaseAdapter {
  private Context context;
  private final Map<String,Adapter> sections;
  private final ArrayAdapter<String> headers;
  private final static int TYPE_SECTION_HEADER = 0;
  private boolean removeMasterPaddingLeft;
  
  public Adapter_SeparatedList(Context context, boolean removeMasterPaddingLeft) {
        this.sections = new LinkedHashMap<>();
    this.headers = new ArrayAdapter<>(context, R.layout.list_header);
    this.context = context;
    this.removeMasterPaddingLeft = removeMasterPaddingLeft;
  }
  
  public void addSection(String section, Adapter adapter) {
    this.headers.add(section);
    this.sections.put(section, adapter);
  }
  
  public Object getItem(int position) {
    for(Object section : this.sections.keySet()) {
      Adapter adapter = sections.get(section);
      int size = adapter.getCount() + 1;
      
      // check if position inside this section 
      if(position == 0) return section;
      if(position < size) return adapter.getItem(position - 1);
      
      // otherwise jump into next section
      position -= size;
    }
    return null;
  }
  
  public int getCount() {
    // total together all sections, plus one for each section header
    int total = 0;
    for(Adapter adapter : this.sections.values())
      total += adapter.getCount() + 1;
    return total;
  }
  
  public int getViewTypeCount() {
    // assume that headers count as one, then total all sections
    int total = 1;
    for(Adapter adapter : this.sections.values())
      total += adapter.getViewTypeCount();
    return total;
  }
  
  public int getItemViewType(int position) {
    int type = 1;
    for(Object section : this.sections.keySet()) {
      Adapter adapter = sections.get(section);
      int size = adapter.getCount() + 1;
      
      // check if position inside this section 
      if(position == 0) return TYPE_SECTION_HEADER;
      if(position < size) return type + adapter.getItemViewType(position - 1);
      
      // otherwise jump into next section
      position -= size;
      type += adapter.getViewTypeCount();
    }
    return -1;
  }
  
  public boolean areAllItemsSelectable() {
    return false;
  }
  
  public boolean isEnabled(int position) {
    return (getItemViewType(position) != TYPE_SECTION_HEADER);
  }
  
  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    int sectionnum = 0;
    for (Object section : this.sections.keySet()) {
      Adapter adapter = sections.get(section);
      int size = adapter.getCount() + 1;
      
      // check if position inside this section 
      if (position == 0) {
        View view = headers.getView(sectionnum, convertView, parent);
        TextView textView = (TextView) view.findViewById(R.id.list_header_title);
        Util.Fonts.setFont(context, textView, CustomFont.Roboto_Medium);
        if (removeMasterPaddingLeft)
          textView.setPadding(55, textView.getPaddingTop(), textView.getPaddingRight(), textView.getPaddingBottom());
        return view;
      }
      if (position < size)
        return adapter.getView(position - 1, convertView, parent);
      
      // otherwise jump into next section
      position -= size;
      sectionnum++;
    }
    return null;
  }
  
  @Override
  public long getItemId(int position) {
    return position;
  }
  
}
Java Source Code List
