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Handling User Input
在 Landmarks app 中,用户可以标记他们喜欢的地点,并在列表中过滤出来。要实现这个功能,我们要先在列表中添加一个开关,这样用户可以只看到他们收藏的内容。另外还会添加一个星形按钮,用户可以点击该按钮来收藏地标。 下载起始项目文件并按照以下步骤 ...
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