警报对话未显示

Question

其他代码正在运行，但未显示警报对话框。

代码：

AlertDialog.Builder confirm = new AlertDialog.Builder(MainActivity.this);

                confirm.setTitle("Do you confirm this order?");
                confirm.setMessage(order);
                confirm.setCancelable(true);
                confirm.setPositiveButton("Confirm", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        orderId ++;
                        orderConfirmed = order;
                        order = "";
                    }
                });

Answer 1

您需要在确认后添加.show()。

Answer 2

一个重要的电话丢失了，去做-confirm.show()

Answer 3

AlertDialog.Builder confirm = new AlertDialog.Builder(MainActivity.this);

confirm.setTitle("Do you confirm this order?");
confirm.setMessage(order);
confirm.setCancelable(true);

confirm.setPositiveButton("Confirm", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
        orderId ++;
        orderConfirmed = order;
        order = "";
     }
  });
AlertDialog.show();

希望这对您有帮助