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客戶端穩(wěn)定性和提升用戶體驗(yàn)。

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1，掌握app的運(yùn)行狀態(tài)

這是官方文檔中關(guān)于Application State的詳細(xì)描述：

https://developer.apple.com/library/ios/#documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/ManagingYourApplicationsFlow/ManagingYourApplicationsFlow.html\

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2，嘗試在后臺(tái)接收?qǐng)?bào)警信息的嘗試：后臺(tái)運(yùn)行。

這是官方文檔中關(guān)于后臺(tái)和多任務(wù)的詳細(xì)描述：

https://developer.apple.com/library/ios/#documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/ManagingYourApplicationsFlow/ManagingYourApplicationsFlow.html

經(jīng)研究發(fā)現(xiàn)后臺(tái)運(yùn)行在iOS下限制很多，iOS只針對(duì)幾類功能提供了后臺(tái)執(zhí)行能力：播放音樂、GPS導(dǎo)航、跟外圍設(shè)備通信、藍(lán)牙通信等。所以不太適合我們這個(gè)應(yīng)用。

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3，嘗試使用Push Notification接收?qǐng)?bào)警信息：

這是對(duì)Remote Push Notification機(jī)制的概述：

https://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Introduction/Introduction.html

要實(shí)現(xiàn)push notification，需要以下三部分知識(shí)：

a，Scheduling, Registering, and Handling Notifications

https://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/IPhoneOSClientImp/IPhoneOSClientImp.html#//apple_ref/doc/uid/TP40008194-CH103-SW1

b，Apple Push Notification Service

https://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/ApplePushService/ApplePushService.html#//apple_ref/doc/uid/TP40008194-CH100-SW9

c，Provisioning and Development

https://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/ProvisioningDevelopment/ProvisioningDevelopment.html#//apple_ref/doc/uid/TP40008194-CH104-SW1

d，Provider Communication with Apple Push Notification Service

https://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/CommunicatingWIthAPS/CommunicatingWIthAPS.html#//apple_ref/doc/uid/TP40008194-CH101-SW1

最終決定使用這種方式實(shí)現(xiàn)報(bào)警信息推送。

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4，這是stackoverflow中關(guān)于如何實(shí)現(xiàn)Provider server的問答：

http://stackoverflow.com/questions/7791549/how-to-create-a-server-for-apns-for-iphone

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That‘s all。

轉(zhuǎn)載于:https://www.cnblogs.com/tara/archive/2012/02/25/2368016.html

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