先定義一個layout作為彈出框的content

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical" >

    <EditText
        android:id="@+id/edUsername"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:hint="username" />

</LinearLayout>

再通過AlertDialog來實現

AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
            builder.setTitle("游戲結束，請英雄留下您的稱謂");
            // 通過LayoutInflater來加載一個xml的布局文件作為一個View對象
            View view = LayoutInflater.from(getContext()).inflate(
                    R.layout.dialog, null);
            // 設置我們自己定義的布局文件作為彈出框的Content
            builder.setView(view);

            final EditText username = (EditText) view
                    .findViewById(R.id.edUsername);

            builder.setPositiveButton("確定",
                    new DialogInterface.OnClickListener() {

                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            //確定操作的內容
                        }
                    });

            builder.setNegativeButton("算了",
                    new DialogInterface.OnClickListener() {

                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            // TODO Auto-generated method stub
                            Toast.makeText(getContext(), "告辭！",
                                    Toast.LENGTH_SHORT).show();
                        }
                    });
            builder.show();

最后的結果