有一个在Android的一个事件监听器名为 DatePicker.OnDateChangedListener 。 我想设置一个datepicker观点对更改日期监听如下：

There is an event listener in Android called DatePicker.OnDateChangedListener. I am trying to set a DatePicker view's on date changed listener as follows:

DatePicker dp = new DatePicker(getContext());
dp.setOnDateChangedListener(this); 
//where this is my activity extends DatePicker.OnDateChangedListener

但你猜怎么着？ 日期选取器并没有一个所谓的方法 setOnDateChangedListener

But guess what? Date picker does not have a method called setOnDateChangedListener.

我的问题是：

任何文档/教程将是非常有益的。

Any documentation/tutorials will be very helpful.

推荐答案

一旦你创建了的DatePicker ，你需要用你想要显示的日期初始化它起初。这就是点上，你可以添加你的听众。

Once you've created your DatePicker, you need to initialise it with the date you want to display at first. That's the point at which you can add your listener.

请参阅DatePicker.init(int, INT，INT，OnDateChangedListener） 。