Android BaseAdapter application example

An example of Android BaseAdapter is given in this paper. To share for your reference, the details are as follows:

Direct source code

/**
*  Generate contacts Items , i.e., Items Contains the following controls 
*
*/
public final class ViewHolder{
  public ImageView callImg;// Call icon 
  public ImageView headImg;// Head portrait 
  public TextView peopleName;// Contact person's name 
  public TextView peopleNumber;// Contact number 
}
public class MyAdapter extends BaseAdapter {
 private LayoutInflater mInflater;
 public MyAdapter(Context context) {
  this.mInflater = LayoutInflater.from(context);
 }
 public int getCount() {
   return listPeople.size();
 }
 public Object getItem(int arg0) {
   return listPeople.get(arg0);
 }
 public long getItemId(int arg0) {
  return arg0;// When you were looking at someone else's example, go back here NUll The load is all right, but in ListView In the OnItemsClick An error was reported in the event. 
 }
 public View getView(final int position, View convertView,
  ViewGroup parent) {
  ViewHolder holder = null;
  if (convertView == null) {
  holder = new ViewHolder();
  convertView = mInflater.inflate(R.layout.peopleinfo, null);
  holder.callImg = (ImageView) convertView
   .findViewById(R.id.callbtn);
  holder.headImg = (ImageView) convertView
   .findViewById(R.id.contactImage);
  holder.peopleName = (TextView) convertView
   .findViewById(R.id.peopleName);
  holder.peopleNumber = (TextView) convertView
   .findViewById(R.id.peopleNumber);
  convertView.setTag(holder);
  } else {
  holder = (ViewHolder) convertView.getTag();
  }
  final String name = (String) listPeople.get(position).get(
   "peopleName");
  final String num = (String) listPeople.get(position).get(
   "peopleNumber");
  holder.peopleName.setText((String) listPeople.get(position).get(
   "peopleName"));
  holder.peopleNumber.setText((String) listPeople.get(position).get(
   "peopleNumber"));
  //  holder.headImg.setImageResource(R.drawable.ic_menu_contact);
  if(listPeople.get(position).get("peoplePhoto") != null){
  holder.headImg.setImageBitmap((Bitmap)listPeople.get(position).get(
  "peoplePhoto"));
  }
  holder.callImg.setImageResource(R.drawable.ic_dial_action_call);
  holder.callImg.setOnClickListener(new View.OnClickListener() {
  public void onClick(View v) {
  // To deal with Items Control in the 
  }
  });
  return convertView;
 }
 }
/*
* application BaseAdapter
*
*/
final MyAdapter myAdapter = new MyAdapter(this);
  contacts.setAdapter(myAdapter);
  contacts.setOnItemClickListener(new OnItemClickListener() {
  @SuppressWarnings("unchecked")
  public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
   long arg3) {
   Map<String, Object> map = (Map<String, Object>) myAdapter.getItem(arg2);// Notice here, 
   String peopleNumber = String.valueOf(map.get("peopleNumber"));
  }
});

I hope this article has been helpful in Android programming.