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我有一份针对我国盲人的申请。我想在我的应用程序和导航器中使用地图视图(谷歌地图)。在这里,导航器告诉他们他们走到哪里。如果有左转或右转,这意味着在路上,所以导航器可以告诉我们有左转或右转。如果有人有任何链接/教程源代码,请帮助我。