我已经开始学习Android开发和我从一本书下一个todolist的例子：

  //创建做项目的数组列表
最后的ArrayList＆LT;字符串＆GT; todoItems =新的ArrayList＆LT;字符串＆GT;（）;

//创建数组适配器将数组绑定到ListView
最后ArrayAdapter＆LT;字符串＆GT; AA;
AA =新的ArrayAdapter＆LT;字符串＆GT;（这一点，
                                android.R.layout.simple_list_item_1，
                                todoItems
                            ）;
myListView.setAdapter（AA）;
 

我不明白这究竟code特别是这一行：

  android.R.layout.simple_list_item_1
 

解决方案

扎卡里亚，那就是引用一个内置的XML布局文件，它是Android操作系统的一部分，而不是你自己的XML布局中的一种。

下面是布局，您可以使用的详细列表： http://developer.android.com/reference/android/R.layout.html （更新链接感谢@Estel：https://github.com/android/platform_frameworks_base/tree/master/core/res/res/layout ）

您可以实际查看code的布局。

I've started learning Android development and am following a todolist example from a book:

// Create the array list of to do items
final ArrayList<String> todoItems = new ArrayList<String>();

// Create the array adapter to bind the array to the listView
final ArrayAdapter<String> aa;
aa = new ArrayAdapter<String>(  this, 
                                android.R.layout.simple_list_item_1,
                                todoItems
                            );
myListView.setAdapter(aa);

I can't understand exactly this code especially this line:

android.R.layout.simple_list_item_1

Zakaria, that is a reference to an built-in XML layout document that is part of the Android OS, rather than one of your own XML layouts.

Here is a further list of layouts that you can use: http://developer.android.com/reference/android/R.layout.html (Updated link thanks @Estel: https://github.com/android/platform_frameworks_base/tree/master/core/res/res/layout )

You can actually view the code for the layouts.