在Android中更新警報對話框標題

Question

我在片段活動中使用帶有標題的警報對話框。在單獨的類中創建了警報對話框。

單擊警報對話框中的按鈕時，我必須更新標題名稱？

下面顯示了警報對話框代碼

public  class ViewCartDialog 
{
 Activity activity;
 Cursor cursor;
 public static AlertDialog.Builder builder;
 public ViewCartDialog(Activity activity)
 {
  this.activity=activity;
  cartDialog();
 }
 public void cartDialog() 
 {
  // TODO Auto-generated method stub
   builder = new AlertDialog.Builder(activity);
      //  builder.setIcon(R.drawable.shopping_cart);
   cursor = DBCatalog.getCursor();
        builder.setTitle("My Carts"+"("+cursor.getCount()+")");
        LayoutInflater adbInflater = LayoutInflater.from(activity);
     View cartview = adbInflater.inflate(R.layout.cart_list, null);
     final EditText custcode=(EditText) cartview.findViewById(R.id.cust_codefield);
     final EditText custname=(EditText) cartview.findViewById(R.id.cust_namefield);
     custcode.setOnTouchListener(new DrawableClickListener.RightDrawableClickListener(
       custcode) {
   @Override
   public boolean onDrawableClick() {
    new Customer(activity,custcode,custname);
    return true;

   }

  });
        ListView cart_lv=(ListView) cartview.findViewById(R.id.cart_list);
        CartAdapter cartadapter=new CartAdapter(activity, R.layout.cart_listitem, cursor);
        cart_lv.setAdapter(cartadapter);
        builder.setView(cartview);
     builder.setNegativeButton("cancel",
                new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                });

        builder.setPositiveButton("Place Order",
                new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {

                    }
                });
        builder.show();
 }
}

Answer 1

而不是使用

builder.show();

用這個

AlertDialog alert = builder.create();
      alert.show();

Answer 2

在對話框類中使用以下代碼：

靜態 AlertDialog警報；

警報= builder.create（）; alert.show（）;

然后在Fragment活動中使用以下代碼

ViewCartDialog.alert.setTitle（“”）;