1. 复用 convertview减少 getview 方法对 Inflater 的操作
2.使用static的view对象的应用 减少内存中申请的局部变量的个数(或者使用viewHolder）
3.图片数据使用异步加载与缓存机制
public class AppListAdapter extends BaseAdapter {
private Context context ;
private List<AppInfo> appInfos ;
private static ImageView iv ;
private static TextView tv;
public AppListAdapter(Context context, List<AppInfo> appInfos){
this.context=context;
this.appInfos=appInfos;
}
public void setAppInfos(List<AppInfo> appInfos) {
this.appInfos = appInfos;
}
@Override
public int getCount() {
return appInfos.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return appInfos.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view;
if(convertView==null){
view = View.inflate(context, R.layout.app_item, null);
}else{
view = convertView;
}
AppInfo appInfo = appInfos.get(position);
iv = (ImageView)view.findViewById(R.id.iv_app_icon);
iv.setImageDrawable(appInfo.getIcon());
tv = (TextView)view.findViewById(R.id.tv_app_name);
tv.setText(appInfo.getAppName());
return view;
}
}
