How to refresh a view in main activity from an adapter?

Question

I have a graph in main activity also I have a recycler view in main activity. Custom adapter is used for recyclerview. I have a check box and swipe layout in list item layout. i

Answer 1

Create a interface that implement Activity, Main activity in your case and override method and perform operation.

//Interface

public interface OnRefreshViewListner{

  public void refreshView();

}


//Main Activity
 MainActivity extends Activity implements OnRefreshViewListner
{

  //Other methods

  @Override
  public void refreshView(){

    // write refresh code here

 }

}


//Initialize Interface in adapter constructor

public class YourAdapter extends BaseAdapter {

 private OnRefreshViewListner mRefreshListner;
 public YourAdapter (Context context) {
       mRefreshListner = (OnRefreshViewListner)context; 
    }

    //call MainActivity method
    mRefreshListner.refreshView();
}