LeakCanary泄漏跟踪中的查找原因

Question

LeakCanary在我们的应用程序中报告了内存泄漏，并带有以下泄漏跟踪：

05-24 08:41:05.380044 16534 19408 D LeakCanary: HeapAnalysisSuccess(heapDumpFile=/data/user/0/..../files/leakcanary/2020-05-24_08-24-07_502.hprof, createdAtTimeMillis=1590334865374, analysisDurationMillis=85525, applicationLeaks=[ApplicationLeak(className=<>.media.MediaControlActivity, leakTrace=
05-24 08:41:05.380044 16534 19408 D LeakCanary: ┬
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ android.provider.FontsContract
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: NO (HomeApplication↓ is not leaking and a class is never leaking)
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    GC Root: System class
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ static FontsContract.sContext
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ <>.application.HomeApplication
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: NO (Application is a singleton)
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    HomeApplication does not wrap an activity context
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ HomeApplication.mLoadedApk
05-24 08:41:05.380044 16534 19408 D LeakCanary: │                      ~~~~~~~~~~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ android.app.LoadedApk
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ LoadedApk.mReceivers
05-24 08:41:05.380044 16534 19408 D LeakCanary: │                ~~~~~~~~~~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ android.util.ArrayMap
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ ArrayMap.mArray
05-24 08:41:05.380044 16534 19408 D LeakCanary: │               ~~~~~~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ java.lang.Object[]
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ array Object[].[9]
05-24 08:41:05.380044 16534 19408 D LeakCanary: │                     ~~~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ android.util.ArrayMap
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ ArrayMap.mArray
05-24 08:41:05.380044 16534 19408 D LeakCanary: │               ~~~~~~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ java.lang.Object[]
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ array Object[].[58]
05-24 08:41:05.380044 16534 19408 D LeakCanary: │                     ~~~~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ ayf
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ ayf.a
05-24 08:41:05.380044 16534 19408 D LeakCanary: │          ~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ ayg
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ ayg.b
05-24 08:41:05.380044 16534 19408 D LeakCanary: │          ~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ als
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ als.b
05-24 08:41:05.380044 16534 19408 D LeakCanary: │          ~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ alt
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ alt.b
05-24 08:41:05.380044 16534 19408 D LeakCanary: │          ~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ╰→ <>.media.MediaControlActivity
05-24 08:41:05.380044 16534 19408 D LeakCanary: ​     Leaking: YES (Activity#mDestroyed is true and ObjectWatcher was watching this)
05-24 08:41:05.380044 16534 19408 D LeakCanary: ​     key = 758a249e-d3c7-44e3-b633-4649a5574735
05-24 08:41:05.380044 16534 19408 D LeakCanary: ​     watchDurationMillis = 5397
05-24 08:41:05.380044 16534 19408 D LeakCanary: ​     retainedDurationMillis = 393
05-24 08:41:05.380044 16534 19408 D LeakCanary: , retainedHeapByteSize=43842), ApplicationLeak(className=aym, leakTrace=
05-24 08:41:05.380044 16534 19408 D LeakCanary: ┬

据此，我知道原因在MediaControlActivity中。另外，我看到要存储的引用从Application类开始] /

但是我不明白这是如何链接的，因为跟踪中的某些行有些模糊，这部分是特别的：

├─ java.lang.Object[]
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ array Object[].[58]
05-24 08:41:05.380044 16534 19408 D LeakCanary: │                     ~~~~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ ayf
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ ayf.a
05-24 08:41:05.380044 16534 19408 D LeakCanary: │          ~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ ayg
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ ayg.b
05-24 08:41:05.380044 16534 19408 D LeakCanary: │          ~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ als
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ als.b
05-24 08:41:05.380044 16534 19408 D LeakCanary: │          ~
05-24 08:41:05.380044 16534 19408 D LeakCanary: ├─ alt
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    Leaking: UNKNOWN
05-24 08:41:05.380044 16534 19408 D LeakCanary: │    ↓ alt.b
05-24 08:41:05.380044 16534 19408 D LeakCanary: │          ~

因此，我的问题是：-为什么在这里混淆痕迹？是由于保卫人吗？如果没有，还有什么？

Answer 1

由于对代码进行了混淆，因此对跟踪进行了混淆。如果为该版本启用了Proguard，则有一个插件可以帮助LeakCanary：https://square.github.io/leakcanary/recipes/#using-leakcanary-with-obfuscated-apps

如果未启用Proguard，则最有可能是因为您使用了已被混淆的库。您应该尝试找出它是哪个库。