关闭对话框后如何从对话框中获取数据？

Question

I have tried to get data from a dialog into a textview but i get the error that the app can t see the textview, because textview is behind dialog... after i click on button this will appear

backpackDialog = new Dialog(MainActivity.this);
backpackDialog.setTitle("Backpack"); 
backpackDialog.setContentView(R.layout.backpack_layout); 
window = backpackDialog.getWindow(); 
lp.copyFrom(window.getAttributes()); 
lp.width = WindowManager.LayoutParams.MATCH_PARENT; 
lp.height = WindowManager.LayoutParams.WRAP_CONTENT; 
window.setAttributes(lp); 
backpackDialog.show(); 

// and after i click to dissmis the dialog...
useItemButton.setOnClickListener(new View.OnClickListener() 
{ @Override public void onClick(View view) 
  {  
     // here is the problem...
     intPlayerHealth = intPlayerHealth + 20;
     ->playerHealthText.setText(intPlayerHealth);<-
     backpackDialog.dismiss();
  } 
});

how can i go after i dismiss the dialog to restart activity or something like that to refresh my main activity layout so that way i can get the new value for my textView, and also to not get that error of not being able to see textView, thank you

Answer 1

It's simple written in official documentation

@Override
public void onDismiss(@NonNull DialogInterface dialog) {
    // here is the problem...
    // You can write you action here
    super.onDismiss(dialog);
}