android - How to retrieve data from SQLite and display in TextView only one at a time when clicked on button -


i have stored data in sqlite. need retrieve data sqlite , should display on text view when click on button. , when again click on button should other text view , should show in text view.

using code can display text view. when click on button displaying every thing sqlite, need 1 text view @ time.

public void display(view v)    {    //use cursor keep data    //cursor can keep data of data type    cursor c=db.rawquery("select * mytable", null);    tv.settext("");    if(c!=null && c.getcount()>0)    {     //move cursor first position    c.movetofirst();    //fetch data 1 one       {     //we can use c.getstring(0) here     //or can data using column index     string name=c.getstring(c.getcolumnindex("name"));     string surname=c.getstring(1);     //display on text view     tv.append(name+surname+"\n");     //move next position until end of data    }while(c.movetonext());   } }

modify code below

    cursor c = null;     public void display(view v)    {   //use cursor keep data   //cursor can keep data of data type   if(c == null) {   c=db.rawquery("select * mytable", null);   //move cursor first position   c.movetofirst();   }     tv.settext("");   if(c!=null && c.getcount()>0 && !c.isafterlast())  { //we can use c.getstring(0) here //or can data using column index string name=c.getstring(c.getcolumnindex("name")); string surname=c.getstring(1); //display on text view tv.settext(name+surname+"\n"); c.movetonext(); } }

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