The user navigates from one data set, or page, to another using the Next or Previous button.
用户使用Next或Previous按钮从一个数据集或页面导航到另一个数据集或页面。
In such a case, you may want to have a button as in the previous section, but with the code shown in listing 4.
在此情况下,您可能希望拥有一个按钮(如前一部分中那样),但是要和清单4所示的代码结合使用。
With the back button, you see the title of the previous view.
使用向后按钮,您会看到前面视图的标题。
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