java - asyncTask and Context -


this code custom array adapter constructor

public class customarrayadapter extends arrayadapter<string> {  rowitems rowitems; list<rowdata> datalist;  public customarrayadapter(context context, int textviewid, string[] id, rowitems rowitems, list<rowdata> listdata)

and eclipse trys change in asynctask , asynctask 

private  class asynctaskproduct extends asynctask<void, void, boolean>{     string url;     string result;     context mycontex;     progressdialog pd;      string[] id;     list<rowdata> l;     listview lvproduct;       public asynctaskproduct(string url, context contex,listview lv) {         url = url;         mycontex = contex;         lvproduct = lv;              }      @override     protected void onpreexecute() {         super.onpreexecute();         pd = new progressdialog(mycontex);         pd.setmessage("file downloading ...");         pd.setcancelable(false);         pd.setprogressstyle(progressdialog.style_spinner);         pd.show();     }      @override     protected boolean doinbackground(void... arg0) {         boolean state = false;         getjsonresult con = new getjsonresult();         result = con.postforjson(url);         if (result != null){             state = true;             result = result.substring(10, result.length() - 1);         }         return state;     };      protected void onpostexecute(boolean state) {         if (state) {             (int = 0; < l.size(); i++) {                 id [i]=string.valueof(i);             }             lvproduct.setadapter(new customarrayadapter(this,r.id.lvrow_tv_id, id, new rowitems(), l));                              toast.maketext(mycontex,result, toast.length_short).show();         }else {             toast.maketext(mycontex,"error", toast.length_short).show();         }         pd.cancel();     }

my error lvproduct.setadpter. eclips constructor undefined , try change 

customarrayadapter(**asynctaskproduct**, int textviewid, string[] id, rowitems rowitems, list<rowdata> listdata)

why change context asynctaskproduct?!! 

new customarrayadapter(this,r.id.lvrow_tv_id, id, new rowitems(), l));

in statement first parameter not context. instance of asynctask. need pass context parameter. try instead

new customarrayadapter(yourcontext ,r.id.lvrow_tv_id, id, new rowitems(), l));

now question yourcontext.. if declaring asynctask within activity (or extends context).. can use classname.this.....

if not better pass context in asynctask


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