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In OS X v10.6 and later, operation queues use thelibdispatchlibrary (also known as Grand Central Dispatch) to initiate the execution of their operatio... 阅读全文
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Android 中和ios中都有code sign。它们的目的一样,都是要保证程序的可靠性,最基本实现原理也一样。但是sign的过程比较不同。下面记录一点Android sign的重要知识。请参看Android 官方文档,Signing Your Applications,http://developer.android.com/tools/publishing/app-signing.html1.The certificate does not need to be signed by a certificate authority: it is perfectly allowable, a 阅读全文
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注册apple id 有1年多了,这些概念还是模模糊糊的,决定在这里总结一下。 请参阅官方文档 App Distribution Guide code singing的作用如下: Code signing your app allows the operating system to identif 阅读全文