日常准备之fragment源码理解

今天看了FragmentManager http://androidxref.com/7.0.0_r1/xref/frameworks/base/core/java/android/app/FragmentManager.java#401

BackStackState implements Parcelable
http://androidxref.com/7.0.0_r1/xref/frameworks/base/core/java/android/app/BackStackRecord.java#doAddOp

FragmentTransaction

http://androidxref.com/7.0.0_r1/xref/frameworks/support/v4/java/android/support/v4/app/FragmentTransaction.java

这三个源码,了解fragment如何加载的,如何退出的

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