关闭对话框后如何从对话框中获取数据？

Question

我试图从对话框中获取数据到文本视图中，但我收到应用程序无法看到文本视图的错误，因为文本视图在对话框后面......单击按钮后，这将出现

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();
  } 
});

我如何关闭对话框以重新启动活动或类似的东西来刷新我的主要活动布局，这样我就可以获得我的 textView 的新值，并且不会出现无法看到 textView 的错误，谢谢你

Answer 1

官方文档里写的很简单

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