@Override
public View getView(int position,View convertView,ViewGroup parent){
ViewHolder holder;
if(convertView == null){
convertView = inflater.inflate(R.layout.list_item,null);
holder = new ViewHolder();
....convertView.setTag(holder);
}else{
holder = (ViewHolder)convertView.getTag();
}
}
@Override
public View getView(int position,View convertView,ViewGroup parent){
ViewHolder holder;
if(convertView == null){
convertView = inflater.inflate(R.layout.list_item,null);
holder = new ViewHolder();
....convertView.setTag(holder);
}else{
holder = (ViewHolder)convertView.getTag();
}
。。。。。
imageview.setTag(imageurl);
if(!cache.icon_catch.get(imageurl,imageview){
imageview.setimageDrawable(null);
}
}
if ( ! Cache . ICON_CACHE . get ( imageUrl , imageView ) )
public void onImageLoaded ( String imageUrl , Drawable imageDrawable , View view , booleanisInCache ) {
// can be another view child, like textView and so on
if ( view != null && imageDrawable != null ) {
ImageView imageView = ( ImageView ) view ;
// add tag judge, avoid listView cache and so on
String imageUrlTag = ( String ) imageView . getTag ( ) ;
if ( ObjectUtils . isEquals ( imageUrlTag , imageUrl ) ) {
imageView . setImageDrawable ( imageDrawable ) ;
}
}
} ;
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