It calls the primary constructor , passing the label and a new list to wrap the single callback .
它调用主构造函数,并且传递给它标签和包含了回调函数的新列表。
To simplify things , we 'll start with a single callback that counts the number of button clicks .
为了简单化,我们从一个单独的计算按钮被按次数的回调开始。
So , let 's create a trait that implements this pattern , then use it to handle callback behavior .
所以,让我们创建一个trait来实现这个模式,然后用它来处理回调行为。
When the mouse is dragged , the mouse event in the mousedragged callback gives us the x and y co-ordinates of the mouse pointer .
当鼠标被拖动的时候,mousedragged回调中的鼠标事件提供给我们鼠标指针的x和y轴坐标。
There are three seperate ways to receive json data via ajax . Assignment , callback , and parse .
通过ajax接收json数据有三个不同方式.委派回调与解释.
The primary constructor , which is the body of the entire class , has a parameter list that takes a label string and a list of callback functions .
主构造函数,类的主题,有一个参数列表来接受标签字符串和回调函数的列表。
Take a close look at the code for the first three examples and you 'll see that I use the ajax callback function to trigger the slidedown and show effects .
This separation is difficult to do in java , even if we define an interface for the callback behavior . We still have to embed the implementation code in the class somehow , compromising modularity .
In our example , we can define the callback abstraction in a trait , as in a java interface , but we can also implement the abstraction in the trait ( or a derived trait ) .