如何解决BottomSheetBehavior泄漏片段?
我正在使用LeakCanary 2.5分析我的应用程序。
我很难找出我在测试期间发现的最后一次内存泄漏之一。我真的不明白我在做什么错。
LeakCanary日志如下:
图片:
日志:
┬───
│ GC Root: Global variable in native code
│
├─ myApp.view.MyView instance
│ Leaking: NO (MainActivity↓ is not leaking and View attached)
│ View is part of a window view hierarchy
│ View.mAttachInfo is not null (view attached)
│ View.mID = R.id.my_view
│ View.mWindowAttachCount = 1
│ mContext instance of myApp.activity.MainActivity with mDestroyed
│ = false
│ ↓ MyView.mContext
├─ myApp.activity.MainActivity instance
│ Leaking: NO (ConstraintLayout↓ is not leaking and Activity#mDestroyed is
│ false)
│ mApplication instance of androidx.multidex.MultiDexApplication
│ mBase instance of androidx.appcompat.view.ContextThemeWrapper,not
│ wrapping kNown Android context
│ ↓ MainActivity._bottomSheet
├─ androidx.constraintlayout.widget.ConstraintLayout instance
│ Leaking: NO (View attached)
│ View is part of a window view hierarchy
│ View.mAttachInfo is not null (view attached)
│ View.mID = R.id.bottom_sheet
│ View.mWindowAttachCount = 1
│ mContext instance of myApp.activity.MainActivity with mDestroyed
│ = false
│ ↓ ConstraintLayout.mKeyedTags
│ ~~~~~~~~~~
├─ android.util.SparseArray instance
│ Leaking: UNKNowN
│ Retaining 2427 bytes in 83 objects
│ ↓ SparseArray.mValues
│ ~~~~~~~
├─ java.lang.Object[] array
│ Leaking: UNKNowN
│ Retaining 2394 bytes in 81 objects
│ ↓ Object[].[1]
│ ~~~
╰→ myApp.fragment.MetadataFragment instance
Leaking: YES (ObjectWatcher was watching this because myApp.
fragment.MetadataFragment received Fragment#onDestroy() callback and
Fragment#mFragmentManager is null)
Retaining 2258 bytes in 75 objects
key = 0409b825-f199-4049-95b1-8e572c92a078
watchDurationMillis = 6335
retainedDurationMillis = 1335
最下面的XML定义如下:
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="100dp"
android:background="?attr/bottom_sheet_background"
app:behavior_hideable="false"
app:behavior_peekHeight="55dp"
app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior">
如日志所示,我在MainActivity中存储了_bottomSheet
的引用。我以编程方式获得了像这样的BottomSheetBehavior.from(_bottomSheet);
的BottomSheetBehavIoUr来附加一个addBottomSheetCallback
。
在活动的onDestroy
中,我认为自己正在清理,但显然缺少某些内容:
@Override
protected void onDestroy()
{
super.onDestroy();
...
_bottomSheetBehavior.removeBottomSheetCallback(_bottomSheetBehaviorCallBack);
_bottomSheet = null;
...
}
我想我在LeakCanary日志中看到的是ConstraintLayout
持有MetadataFragment
的标签。我发现变量LeakCanary在Android(mKeyedTags
-> View
)的ConstraintLayout extends ViewGroup
类中是关于ViewGroup extends View
的。
我已经检查了我的代码和XML,并且没有使用标签。我在这里想念什么?
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。