Android custom ListView to implement contact sorting

Source code introduction

Android custom LISTVIEW realizes the effect of contact sorting, which is convenient to use.

Source code running screenshot

Source code snippet

 @Override  
 public View getLetterView( int position, View convertView, ViewGroup parent) {
 // Here is the item interface setting for letters.  
 if (convertView == null ) {
                convertView = new TextView(MainActivity. this );
                ((TextView) convertView).setGravity(Gravity.CENTER_VERTICAL);
                convertView.setBackgroundColor(getResources().getColor(android.R.color.white));
 }
            ((TextView) convertView).setText(list.get(position).getValue()); 
  
 return convertView;
 } 
  
 @Override  
 public View getContainerView( int position, View convertView, ViewGroup parent) {
 // Here are the item interface settings for other normal data.  
 if (convertView == null ) {
                convertView = new TextView(MainActivity. this );
                ((TextView) convertView).setGravity(Gravity.CENTER_VERTICAL);
 }
            ((TextView) convertView).setText(list.get(position).getValue()); 
  
 return convertView;
 }

Source code link: http://download..com/data/1968342