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摘要： Local and Push Notifications in Depth(深度)The essential（本质） purpose of both local and push notifications is to enable an application to inform its users that it has something for them—for example, a message or an upcoming（即将推出的） appointment—when the application isn’t running in the foreground. The es 阅读全文

摘要： About Local Notifications and Push NotificationsLocal notifications and push notifications are ways for an application that isn’t running in the foreground(前景) to let its users know it has information for them. The information could be a message, an impending（即将到来的） calendar（日历）event, or new data on 阅读全文