我在我的 android 应用程序中使用了 leakcanary，它检测到 FrameLayout 泄露 .但我找不到或解决这个问题，
我该如何解决这个泄漏？引用我的泄漏金丝雀报告。
FrameLayout 泄露
┬───
│ GC Root: System class
│
├─ leakcanary.internal.InternalLeakCanary class
│ Leaking: NO (MainActivity↓ is not leaking and a class is never leaking)
│ ↓ static InternalLeakCanary.resumedActivity
├─ com.android.zigmaster.MainActivity instance
│ Leaking: NO (MapViewFragment↓ is not leaking and Activity#mDestroyed
│ is false)
│ mApplication instance of com.android.zigmaster.MyApplication
│ mBase instance of androidx.appcompat.view.ContextThemeWrapper
│ ↓ ComponentActivity.mActivityResultRegistry
├─ androidx.activity.ComponentActivity$2 instance
│ Leaking: NO (MapViewFragment↓ is not leaking)
│ Anonymous subclass of androidx.activity.result.ActivityResultRegistry
│ this$0 instance of com.android.zigmaster.MainActivity with mDestroyed =
│ false
│ ↓ ActivityResultRegistry.mKeyToCallback
├─ java.util.HashMap instance
│ Leaking: NO (MapViewFragment↓ is not leaking)
│ ↓ HashMap.table
├─ java.util.HashMap$HashMapEntry[] array
│ Leaking: NO (MapViewFragment↓ is not leaking)
│ ↓ HashMap$HashMapEntry[].[4]
├─ java.util.HashMap$HashMapEntry instance
│ Leaking: NO (MapViewFragment↓ is not leaking)
│ ↓ HashMap$HashMapEntry.value
├─ androidx.activity.result.ActivityResultRegistry$CallbackAndContract instance
│ Leaking: NO (MapViewFragment↓ is not leaking)
│ ↓ ActivityResultRegistry$CallbackAndContract.mCallback
├─ androidx.fragment.app.FragmentManager$10 instance
│ Leaking: NO (MapViewFragment↓ is not leaking)
│ Anonymous class implementing androidx.activity.result.
│ ActivityResultCallback
│ ↓ FragmentManager$10.this$0
├─ androidx.fragment.app.FragmentManagerImpl instance
│ Leaking: NO (MapViewFragment↓ is not leaking)
│ ↓ FragmentManager.mParent
├─ com.android.zigmaster.ui.trips.FragmentTripPlanner instance
│ Leaking: NO (Fragment#mFragmentManager is not null)
│ ↓ FragmentTripPlanner.mMap
│ ~~~~
├─ com.google.android.gms.maps.GoogleMap instance
│ Leaking: UNKNOWN
│ Retaining 765.4 kB in 10828 objects
│ ↓ GoogleMap.zzg
│ ~~~
├─ com.google.android.gms.maps.internal.zzg instance
│ Leaking: UNKNOWN
│ Retaining 142 B in 2 objects
│ ↓ zza.zza
│ ~~~
├─ com.google.maps.api.android.lib6.impl.bn instance
│ Leaking: UNKNOWN
│ Retaining 765.0 kB in 10821 objects
│ A instance of com.android.zigmaster.MyApplication
│ ↓ bn.w
│ ~
├─ android.widget.FrameLayout instance
│ Leaking: UNKNOWN
│ Retaining 2.9 kB in 65 objects
│ View not part of a window view hierarchy
│ View.mAttachInfo is null (view detached)
│ View.mWindowAttachCount = 1
│ mContext instance of com.android.zigmaster.MyApplication
│ ↓ View.mParent
│ ~~~~~~~
╰→ android.widget.FrameLayout instance
Leaking: YES (ObjectWatcher was watching this because com.google.android.
gms.maps.SupportMapFragment received Fragment#onDestroyView() callback
(references to its views should be cleared to prevent leaks))
Retaining 1.9 kB in 48 objects
key = 265fafb3-b2a3-4462-a4e7-d5cc2afbc6fe
watchDurationMillis = 57439
retainedDurationMillis = 52422
View not part of a window view hierarchy
View.mAttachInfo is null (view detached)
View.mWindowAttachCount = 1
mContext instance of com.android.zigmaster.MainActivity with
mDestroyed = false
XML:
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ui.trips.FragmentTripPlanner">
<androidx.fragment.app.FragmentContainerView
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
fragment :
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import com.google.android.gms.maps.CameraUpdate
import com.google.android.gms.maps.CameraUpdateFactory
import com.google.android.gms.maps.GoogleMap
import com.google.android.gms.maps.SupportMapFragment
import com.google.android.gms.maps.model.LatLng
class MapViewFragment : Fragment() {
private lateinit var mMap: GoogleMap
private var userLatitude = 38.2500486
private var userLongitude = -85.7647484
private lateinit var mapFragment : SupportMapFragment
private var binding : MapViewFragmentBinding ?=null
private fun zoomingLocation(): CameraUpdate {
return CameraUpdateFactory.newLatLngZoom(LatLng(userLatitude, userLongitude), 14f)
}
private fun configActivityMaps(googleMap: GoogleMap): GoogleMap {
// set map type
googleMap.mapType = GoogleMap.MAP_TYPE_NORMAL
// Enable / Disable zooming controls
googleMap.uiSettings.isZoomControlsEnabled = false
// Enable / Disable Compass icon
googleMap.uiSettings.isCompassEnabled = true
// Enable / Disable Rotate gesture
googleMap.uiSettings.isRotateGesturesEnabled = true
// Enable / Disable zooming functionality
googleMap.uiSettings.isZoomGesturesEnabled = true
googleMap.uiSettings.isScrollGesturesEnabled = true
googleMap.uiSettings.isMapToolbarEnabled = true
return googleMap
}
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View {
binding = MapViewFragmentBinding.inflate(inflater)
mapFragment = (childFragmentManager.findFragmentById(R.map.id) as SupportMapFragment?)!!
mapFragment.getMapAsync { googleMap ->
mMap = configActivityMaps(googleMap)
mMap.moveCamera(zoomingLocation())
}
return binding!!.root
}
override fun onDestroyView() {
super.onDestroyView()
mapFragment =null
binding=null
}
}
RandomAccess[bytes=4089892,reads=80700,travel=60892211355,range=18101017,size=22
288421]
已尝试:相同问题
import androidx.fragment.app.Fragment
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import com.google.android.gms.maps.CameraUpdateFactory
import com.google.android.gms.maps.OnMapReadyCallback
import com.google.android.gms.maps.SupportMapFragment
import com.google.android.gms.maps.model.LatLng
import com.google.android.gms.maps.model.MarkerOptions
class MapsFragment : Fragment() {
private val callback = OnMapReadyCallback { googleMap ->
val sydney = LatLng(-34.0, 151.0)
googleMap.addMarker(MarkerOptions().position(sydney).title("Marker in Sydney"))
googleMap.moveCamera(CameraUpdateFactory.newLatLng(sydney))
}
override fun onCreateView(inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?): View? {
return inflater.inflate(R.layout.fragment_maps, container, false)
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
val mapFragment = childFragmentManager.findFragmentById(R.id.map) as SupportMapFragment?
mapFragment?.getMapAsync(callback)
}
}
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ui.pref.MapsFragment" />
最佳答案
首先，删除 @SuppressLint("RestrictedApi")并修复你藏在那里的东西。
然后尝试制作private lateinit var mMap: GoogleMap一个局部变量...不需要保留，因为将获得实例 OnMapReadyCallback .
或许可以尝试调用super.onDestroyView()最后，因为 FrameLayout既不是层次结构的一部分，也不是附加的......并且附加计数为 1，因此它必须先前已附加。您很有可能尝试处置 super.onDestroyView() 已处置的内容。并且整个覆盖可能毫无意义。
猜猜看这是什么android.widget.FrameLayout甚至是(后来的 API 具有一个布局检查器 - 不过在 API 25 上，仍然可以将渲染的布局转储到文件中)。
关于android - 如何解决框架布局中的内存泄漏问题？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/67037487/