Question

I have a Thread that downloads data from internet

public class Bp implements Runnable
{
Handler myHandler;
public void setHandler(Handler myHandler)
{ this.myHandler=myHandler; }
....
myHandler.sendEmptyMessage (0);
}

There is an activity that needs to be updated according to downloaded data.

public class Hp extends Activity implements Runnable
{
....
public Handler myHandler = new Handler() {
  public void  handleMessage(Message msg) {
 //TODO handle myHandler from "Bp" Thread     
 //TODO remove Queue's View 
   if(m_adapter2.getCount ()==6)
   {
    m_adapter2.remove (queue);         //removing view named queue from adapter
    m_adapter2.notifyDataSetChanged ();
   }
  }
};

Whenever I run above code I get NullPointer Exception .Please help me to update the view.

Answer 1

Solved the issue by rewriting the code neatly & it worked well.Seems earlier there were problems setting Handler.