Singleton and repackaged instance of Android okhttp

Singleton and repackaged instance of Android okhttp

Previously, when looking at the okhttp source code, I found that square did not make a single example of okhttpclient, and I didn't find a suitable explanation on the Internet. The following is my guess

Advantages: using singleton mode avoids the garbage generated by multiple creation

Disadvantages: it is difficult to implement singleton mode for some flexible configuration of code with special requirements

Summary: as an excellent open source framework, square aims to make users use and expand better and more flexibly. From the user's point of view, for projects that do not need multiple configurations, you can manually write a single instance mode to facilitate the efficient use of memory

Finally, we dedicate the last encapsulation class

In the class of JSON to model, too many performance problems were not considered at that time. Org.json.jsonobject and gson were used in this class. Corresponding optimization can be made here

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