在对话框中添加数字

Question

我是 android 的新手。我正在开发一个考试应用程序，我想在其中显示对话框中的所有问题编号，以便用户可以切换到任何问题，即 1、2、3、4 等。我尝试了以下代码，但它不合适。我从服务器示例中得到的问题总数为 40 个，因此我想在对话框中显示 1 到 40 之间的数字。请帮助

  AlertDialog.Builder alert = new AlertDialog.Builder(context);

            LinearLayout layout = new LinearLayout(this);
            layout.setOrientation(LinearLayout.HORIZONTAL);
            layout.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.FILL_PARENT));

            for (int i = 0; i < 20; i++) {
                // Set an EditText view to get user input
                final TextView input = new TextView(context);
                input.setText("" + i);
                input.setPadding(5, 5, 5, 5);
                input.setTextSize(15);

                input.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        String srt = "clickd";
                        Toast.makeText(context, srt, Toast.LENGTH_LONG).show();

                    }
                });
                layout.addView(input);
                alert.setView(layout);
            }
            alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int whichButton) {
                    //You will get as string input data in this variable.
                    // here we convert the input to a string and show in a toast.
                    String srt = "fdsfdsf";
                    Toast.makeText(context, srt, Toast.LENGTH_LONG).show();
                } // End of onClick(DialogInterface dialog, int whichButton)
            }); //End of alert.setPositiveButton
            alert.setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int whichButton) {
                    // Canceled.
                    dialog.cancel();
                }
            }); //End of alert.setNegativeButton
            AlertDialog alertDialog = alert.create();
            alertDialog.show();

这里我已经答了20道题了，可以随便选no。像这样

Answer 1

似乎您正在尝试显示固定大小的数据，比方说 response.Simple 中的 20 个数字是在您的 Dialog 中设置 gridView 并使用固定数量的数据，如下所示：

private void showDialog() {
    //Here is ur gridview
    GridView gridView = new GridView(ctx);

    List<Integer>  mList = new ArrayList<Integer>();
    for (int i = 1 ; i < 20; i++) {
        mList.add(i);
    }

    gridView.setAdapter(new ArrayAdapter(ctx, android.R.layout.simple_list_item_1, mList));
    gridView.setNumColumns(4);
    gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            // do what ev you want with ur stuff here
        }
    });

    // Here you can set grid view to ur dialog
    AlertDialog.Builder builder = new AlertDialog.Builder(ctxI);
    builder.setView(gridView);
    builder.setTitle("Its me !!");
    builder.show();
}

在对话框中添加数字

Add numbers in dialog box

android

android-alertdialog