Leakcanary: My App increase Memory 49mb

[edgelv34]

When I ran my app, it was about 25mb. However, memory increased up to 80mb when moved another activity.

so checked Allocation Tracking and LeakCanary.

Why does this increase memory?

Could you help me? :)

[JakeWharton]

Please include the full leak text or a sample that reproduces the leak.

On Thu, Apr 6, 2017, 9:22 PM edgelv34 [e-mail] wrote:

When I ran my app, it was about 25mb. However, memory increased up to 80mb
when moved another activity.

so checked Allocation Tracking and LeakCanary.

[image: aaaaaa]
https://cloud.githubusercontent.com/assets/8856788/24781570/975d9dac-1b7b-11e7-950a-9e18fc5567c0.PNG

[image: bbbbbbb]
https://cloud.githubusercontent.com/assets/8856788/24781608/c856ea44-1b7b-11e7-842d-ade28a6ea16f.png

Why does this increase memory?

Could you help me? :)

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[edgelv34]

include full leak :)

D/LeakCanary: In :1.0:1.
D/LeakCanary: * kr.co.message.messageapp.MessageActivity has leaked:
D/LeakCanary: * GC ROOT static android.app.ActivityThread.sCurrentActivityThread
D/LeakCanary: * references android.app.ActivityThread.mActivities
D/LeakCanary: * references android.util.ArrayMap.mArray
D/LeakCanary: * references array java.lang.Object[].[1]
D/LeakCanary: * references android.app.ActivityThread$ActivityClientRecord.activity
D/LeakCanary: * leaks kr.co.message.messageapp.MessageActivity instance
D/LeakCanary: * Retaining: 49 MB.
D/LeakCanary: * Reference Key: 6e957dfc-528f-452e-914e-db5cf80c69cd
D/LeakCanary: * Device: samsung samsung SM-G935S hero2lteskt
D/LeakCanary: * Android Version: 6.0.1 API: 23 LeakCanary: 1.5 00f37f5
D/LeakCanary: * Durations: watch=5021ms, gc=136ms, heap dump=1635ms, analysis=14412ms
D/LeakCanary: * Details:
D/LeakCanary: * Class android.app.ActivityThread
D/LeakCanary: | static SERVICE_DONE_EXECUTING_STOP = 2
D/LeakCanary: | static DEBUG_DUALSCREEN = false
D/LeakCanary: | static THUMBNAIL_FORMAT = android.graphics.Bitmap$Config@1893281640 (0x70d92f68)
D/LeakCanary: | static LOOPER_SLOW_LOOP_WARNING_TIMEOUT = -1
D/LeakCanary: | static MIN_TIME_BETWEEN_GCS = 5000
D/LeakCanary: | static DUAL_SCREEN_TYPE_MAX = 4
D/LeakCanary: | static DEBUG_SERVICE = false
D/LeakCanary: | static DEBUG_PROVIDER = false
D/LeakCanary: | static sThemeSync = java.lang.Object@2002184952 (0x7756eaf8)
D/LeakCanary: | static DEBUG_DUALSCREEN_VERBOSE = false
D/LeakCanary: | static sMainThreadHandler = android.app.ActivityThread$H@315306528 (0x12cb3220)
D/LeakCanary: | static sCurrentBroadcastIntent = java.lang.ThreadLocal@2002184920 (0x7756ead8)
D/LeakCanary: | static isElasticEnabled = true
D/LeakCanary: | static sFloatingFeature = com.samsung.android.feature.FloatingFeature@2002184936 (0x7756eae8)
D/LeakCanary: | static sPackageManager = android.content.pm.IPackageManager$Stub$Proxy@315216048 (0x12c9d0b0)
D/LeakCanary: | static DEBUG_CONFIGURATION = false
D/LeakCanary: | static ONE_COUNT_COLUMN = java.lang.String@1888646952 (0x70927728)
D/LeakCanary: | static DEBUG_BROADCAST = false
D/LeakCanary: | static SERVICE_DONE_EXECUTING_START = 1
D/LeakCanary: | static sCSCSync = java.lang.Object@2002184896 (0x7756eac0)
D/LeakCanary: | static rCActivShort = null
D/LeakCanary: | static DEBUG_MESSAGES = false
D/LeakCanary: | static mIsWearableHMTSupported = true
D/LeakCanary: | static TWO_COUNT_COLUMNS = java.lang.String@1888646984 (0x70927748)
D/LeakCanary: | static DEBUG_BACKUP = false
D/LeakCanary: | static TAG = java.lang.String@1888730440 (0x7093bd48)
D/LeakCanary: | static SQLITE_MEM_RELEASED_EVENT_LOG_TAG = 75003
D/LeakCanary: | static ONE_COUNT_COLUMN_HEADER = java.lang.String@1888647040 (0x70927780)
D/LeakCanary: | static LOG_AM_ON_PAUSE_CALLED = 30021
D/LeakCanary: | static HEAP_FULL_COLUMN = java.lang.String@1888646784 (0x70927680)
D/LeakCanary: | static $staticOverhead = byte[336]@1895992945 (0x71028e71)
D/LeakCanary: | static SAFE_DEBUG = false
D/LeakCanary: | static LOG_AM_ON_RESUME_CALLED = 30022
D/LeakCanary: | static SERVICE_DONE_EXECUTING_ANON = 0
D/LeakCanary: | static sCurrentActivityThread = android.app.ActivityThread@314775728 (0x12c318b0)
D/LeakCanary: | static sCscFeature = com.sec.android.app.CscFeature@2002184904 (0x7756eac8)
D/LeakCanary: | static ACTIVITY_THREAD_CHECKIN_VERSION = 3
D/LeakCanary: | static DEBUG_RESULTS = false
D/LeakCanary: | static THREAD_PRIORITY = -11
D/LeakCanary: | static HEAP_COLUMN = java.lang.String@1888646704 (0x70927630)
D/LeakCanary: | static localLOGV = false
D/LeakCanary: | static DEBUG_RC = false
D/LeakCanary: | static DEBUG_MEMORY_TRIM = false
D/LeakCanary: * Instance of android.app.ActivityThread
D/LeakCanary: | static SERVICE_DONE_EXECUTING_STOP = 2
D/LeakCanary: | static DEBUG_DUALSCREEN = false
D/LeakCanary: | static THUMBNAIL_FORMAT = android.graphics.Bitmap$Config@1893281640 (0x70d92f68)
D/LeakCanary: | static LOOPER_SLOW_LOOP_WARNING_TIMEOUT = -1
D/LeakCanary: | static MIN_TIME_BETWEEN_GCS = 5000
D/LeakCanary: | static DUAL_SCREEN_TYPE_MAX = 4
D/LeakCanary: | static DEBUG_SERVICE = false
D/LeakCanary: | static DEBUG_PROVIDER = false
D/LeakCanary: | static sThemeSync = java.lang.Object@2002184952 (0x7756eaf8)
D/LeakCanary: | static DEBUG_DUALSCREEN_VERBOSE = false
D/LeakCanary: | static sMainThreadHandler = android.app.ActivityThread$H@315306528 (0x12cb3220)
D/LeakCanary: | static sCurrentBroadcastIntent = java.lang.ThreadLocal@2002184920 (0x7756ead8)
D/LeakCanary: | static isElasticEnabled = true
D/LeakCanary: | static sFloatingFeature = com.samsung.android.feature.FloatingFeature@2002184936 (0x7756eae8)
D/LeakCanary: | static sPackageManager = android.content.pm.IPackageManager$Stub$Proxy@315216048 (0x12c9d0b0)
D/LeakCanary: | static DEBUG_CONFIGURATION = false
D/LeakCanary: | static ONE_COUNT_COLUMN = java.lang.String@1888646952 (0x70927728)
D/LeakCanary: | static DEBUG_BROADCAST = false
D/LeakCanary: | static SERVICE_DONE_EXECUTING_START = 1
D/LeakCanary: | static sCSCSync = java.lang.Object@2002184896 (0x7756eac0)
D/LeakCanary: | static rCActivShort = null
D/LeakCanary: | static DEBUG_MESSAGES = false
D/LeakCanary: | static mIsWearableHMTSupported = true
D/LeakCanary: | static TWO_COUNT_COLUMNS = java.lang.String@1888646984 (0x70927748)
D/LeakCanary: | static DEBUG_BACKUP = false
D/LeakCanary: | static TAG = java.lang.String@1888730440 (0x7093bd48)
D/LeakCanary: | static SQLITE_MEM_RELEASED_EVENT_LOG_TAG = 75003
D/LeakCanary: | static ONE_COUNT_COLUMN_HEADER = java.lang.String@1888647040 (0x70927780)
D/LeakCanary: | static LOG_AM_ON_PAUSE_CALLED = 30021
D/LeakCanary: | static HEAP_FULL_COLUMN = java.lang.String@1888646784 (0x70927680)
D/LeakCanary: | static $staticOverhead = byte[336]@1895992945 (0x71028e71)
D/LeakCanary: | static SAFE_DEBUG = false
D/LeakCanary: | static LOG_AM_ON_RESUME_CALLED = 30022
D/LeakCanary: | static SERVICE_DONE_EXECUTING_ANON = 0
D/LeakCanary: | static sCurrentActivityThread = android.app.ActivityThread@314775728 (0x12c318b0)
D/LeakCanary: | static sCscFeature = com.sec.android.app.CscFeature@2002184904 (0x7756eac8)
D/LeakCanary: | static ACTIVITY_THREAD_CHECKIN_VERSION = 3
D/LeakCanary: | static DEBUG_RESULTS = false
D/LeakCanary: | static THREAD_PRIORITY = -11
D/LeakCanary: | static HEAP_COLUMN = java.lang.String@1888646704 (0x70927630)
D/LeakCanary: | static localLOGV = false
D/LeakCanary: | static DEBUG_RC = false
D/LeakCanary: | static DEBUG_MEMORY_TRIM = false
D/LeakCanary: | defaultHeapUtil = 0.0
D/LeakCanary: | mActivities = android.util.ArrayMap@315306560 (0x12cb3240)
D/LeakCanary: | mAllApplications = java.util.ArrayList@315306784 (0x12cb3320)
D/LeakCanary: | mAppThread = android.app.ActivityThread$ApplicationThread@315306496 (0x12cb3200)
D/LeakCanary: | mAvailThumbnailBitmap = null
D/LeakCanary: | mBackupAgents = android.util.ArrayMap@315306816 (0x12cb3340)
D/LeakCanary: | mBoundApplication = android.app.ActivityThread$AppBindData@315363424 (0x12cc1060)
D/LeakCanary: | mCSCIconMap = android.util.ArrayMap@316242848 (0x12d97ba0)
D/LeakCanary: | mCSCStringMap = android.util.ArrayMap@316242880 (0x12d97bc0)
D/LeakCanary: | mCompatConfiguration = android.content.res.Configuration@315274496 (0x12cab500)
D/LeakCanary: | mCompatConfigurations = com.samsung.android.multidisplay.common.UnRestrictedArrayList@315306688 (0x12cb32c0)
D/LeakCanary: | mConfiguration = android.content.res.Configuration@315274368 (0x12cab480)
D/LeakCanary: | mConfigurations = com.samsung.android.multidisplay.common.UnRestrictedArrayList@315306656 (0x12cb32a0)
D/LeakCanary: | mCoreFeatureClassLoader = null
D/LeakCanary: | mCoreSettings = android.os.Bundle@315208704 (0x12c9b400)
D/LeakCanary: | mCurDefaultDisplayDpi = 640
D/LeakCanary: | mCurDefaultDisplayDpis = com.samsung.android.multidisplay.common.UnRestrictedArrayList@315306624 (0x12cb3280)
D/LeakCanary: | mDensityCompatMode = false
D/LeakCanary: | mGcIdler = android.app.ActivityThread$GcIdler@315054576 (0x12c759f0)
D/LeakCanary: | mGcIdlerScheduled = false
D/LeakCanary: | mH = android.app.ActivityThread$H@315306528 (0x12cb3220)
D/LeakCanary: | mInitialApplication = .MemoryLeakApplication@315398032 (0x12cc9790)
D/LeakCanary: | mInitialApplications = android.app.Application[4]@315306752 (0x12cb3300)
D/LeakCanary: | mInstrumentation = android.app.Instrumentation@315260608 (0x12ca7ec0)
D/LeakCanary: | mInstrumentationAppDir = null
D/LeakCanary: | mInstrumentationLibDir = null
D/LeakCanary: | mInstrumentationPackageName = null
D/LeakCanary: | mInstrumentationSplitAppDirs = null
D/LeakCanary: | mInstrumentedAppDir = null
D/LeakCanary: | mInstrumentedLibDir = null
D/LeakCanary: | mInstrumentedSplitAppDirs = null
D/LeakCanary: | mJitEnabled = true
D/LeakCanary: | mLastAssistStructure = null
D/LeakCanary: | mLastIntendedActivityToken = android.os.BinderProxy@316780832 (0x12e1b120)
D/LeakCanary: | mLocalProviders = android.util.ArrayMap@315307008 (0x12cb3400)
D/LeakCanary: | mLocalProvidersByName = android.util.ArrayMap@315307040 (0x12cb3420)
D/LeakCanary: | mLooper = android.os.Looper@315306432 (0x12cb31c0)
D/LeakCanary: | mMainThreadConfig = android.content.res.Configuration@315274240 (0x12cab400)
D/LeakCanary: | mNewActivities = null
D/LeakCanary: | mNumVisibleActivities = 1
D/LeakCanary: | mOnPauseListeners = android.util.ArrayMap@315307072 (0x12cb3440)
D/LeakCanary: | mPackages = android.util.ArrayMap@315306848 (0x12cb3360)
D/LeakCanary: | mPendingConfiguration = null
D/LeakCanary: | mPendingConfigurations = com.samsung.android.multidisplay.common.UnRestrictedArrayList@315306720 (0x12cb32e0)
D/LeakCanary: | mPrevScreenOrientationDefined = false
D/LeakCanary: | mProfiler = android.app.ActivityThread$Profiler@315307424 (0x12cb35a0)
D/LeakCanary: | mProviderMap = android.util.ArrayMap@315306944 (0x12cb33c0)
D/LeakCanary: | mProviderRefCountMap = android.util.ArrayMap@315306976 (0x12cb33e0)
D/LeakCanary: | mRelaunchingActivities = java.util.ArrayList@315306912 (0x12cb33a0)
D/LeakCanary: | mResourcePackages = android.util.ArrayMap@315306880 (0x12cb3380)
D/LeakCanary: | mResourcesManager = android.app.ResourcesManager@315283200 (0x12cad700)
D/LeakCanary: | mServices = android.util.ArrayMap@315306592 (0x12cb3260)
D/LeakCanary: | mShrinkRequested = false
D/LeakCanary: | mSomeActivitiesChanged = true
D/LeakCanary: | mSystemContext = android.app.ContextImpl@314824592 (0x12c3d790)
D/LeakCanary: | mSystemThread = false
D/LeakCanary: | mTempConfigurationForSelectiveOrientation = null
D/LeakCanary: | mThemeAppIconMap = null
D/LeakCanary: | mThumbnailCanvas = null
D/LeakCanary: | mThumbnailHeight = -1
D/LeakCanary: | mThumbnailWidth = -1
D/LeakCanary: | shadow$_klass_ = android.app.ActivityThread
D/LeakCanary: | shadow$_monitor_ = 0
D/LeakCanary: * Instance of android.util.ArrayMap
D/LeakCanary: | static EMPTY = android.util.ArrayMap@1893271376 (0x70d90750)
D/LeakCanary: | static BASE_SIZE = 4
D/LeakCanary: | static DEBUG = false
D/LeakCanary: | static EMPTY_IMMUTABLE_INTS = int[0]@1893266384 (0x70d8f3d0)
D/LeakCanary: | static mBaseCacheSize = 1
D/LeakCanary: | static CACHE_SIZE = 10
D/LeakCanary: | static mBaseCache = java.lang.Object[8]@314954080 (0x12c5d160)
D/LeakCanary: | static mTwiceBaseCacheSize = 1
D/LeakCanary: | static mTwiceBaseCache = java.lang.Object[16]@314995184 (0x12c671f0)
D/LeakCanary: | static $staticOverhead = byte[80]@1895846209 (0x71005141)
D/LeakCanary: | static TAG = java.lang.String@1889961768 (0x70a68728)
D/LeakCanary: | mArray = java.lang.Object[8]@314605040 (0x12c07df0)
D/LeakCanary: | mCollections = null
D/LeakCanary: | mHashes = int[4]@315165344 (0x12c90aa0)
D/LeakCanary: | mSize = 2
D/LeakCanary: | shadow$_klass_ = android.util.ArrayMap
D/LeakCanary: | shadow$_monitor_ = 0
D/LeakCanary: * Array of java.lang.Object[]
D/LeakCanary: | [0] = android.os.BinderProxy@316780832 (0x12e1b120)
D/LeakCanary: | [1] = android.app.ActivityThread$ActivityClientRecord@315035264 (0x12c70e80)
D/LeakCanary: | [2] = android.os.BinderProxy@315307680 (0x12cb36a0)
D/LeakCanary: | [3] = android.app.ActivityThread$ActivityClientRecord@315275392 (0x12cab880)
D/LeakCanary: | [4] = null
D/LeakCanary: | [5] = null
D/LeakCanary: | [6] = null
D/LeakCanary: | [7] = null
D/LeakCanary: * Instance of android.app.ActivityThread$ActivityClientRecord
D/LeakCanary: | activity = .MessageActivity@315311648 (0x12cb4620)
D/LeakCanary: | activityInfo = android.content.pm.ActivityInfo@315032192 (0x12c70280)
D/LeakCanary: | compatInfo = android.content.res.CompatibilityInfo@316781280 (0x12e1b2e0)
D/LeakCanary: | createdConfig = null
D/LeakCanary: | displayId = 0
D/LeakCanary: | embeddedID = null
D/LeakCanary: | hideForNow = false
D/LeakCanary: | ident = 245800388
D/LeakCanary: | intent = android.content.Intent@315292736 (0x12cafc40)
D/LeakCanary: | isForward = true
D/LeakCanary: | lastNonConfigurationInstances = null
D/LeakCanary: | mPendingRemoveWindow = null
D/LeakCanary: | mPendingRemoveWindowManager = null
D/LeakCanary: | multiWindowStyle = com.samsung.android.multiwindow.MultiWindowStyle@316073344 (0x12d6e580)
D/LeakCanary: | newConfig = null
D/LeakCanary: | nextIdle = null
D/LeakCanary: | onlyLocalRequest = false
D/LeakCanary: | overrideConfig = android.content.res.Configuration@315034496 (0x12c70b80)
D/LeakCanary: | packageInfo = android.app.LoadedApk@315286800 (0x12cae510)
D/LeakCanary: | parent = null
D/LeakCanary: | paused = false
D/LeakCanary: | pendingConfigChanges = 0
D/LeakCanary: | pendingIntents = null
D/LeakCanary: | pendingResults = null
D/LeakCanary: | persistentState = null
D/LeakCanary: | profilerInfo = null
D/LeakCanary: | referrer = java.lang.String@315298528 (0x12cb12e0)
D/LeakCanary: | startsNotResumed = false
D/LeakCanary: | state = null
D/LeakCanary: | stopped = false
D/LeakCanary: | tmpConfig = android.content.res.Configuration@315056384 (0x12c76100)
D/LeakCanary: | token = android.os.BinderProxy@316780832 (0x12e1b120)
D/LeakCanary: | voiceInteractor = null
D/LeakCanary: | window = com.android.internal.policy.PhoneWindow@315712976 (0x12d165d0)
D/LeakCanary: | shadow$_klass_ = android.app.ActivityThread$ActivityClientRecord
D/LeakCanary: | shadow$_monitor_ = -2119825702
D/LeakCanary: * Instance of .MessageActivity
D/LeakCanary: | bottom_menu_check = android.support.v7.widget.AppCompatImageButton@317228032 (0x12e88400)
D/LeakCanary: | bottom_menu_etc = android.support.v7.widget.AppCompatImageButton@317233152 (0x12e89800)
D/LeakCanary: | bottom_menu_home = android.support.v7.widget.AppCompatImageButton@317225984 (0x12e87c00)
D/LeakCanary: | bottom_menu_message = android.support.v7.widget.AppCompatImageButton@314622976 (0x12c0c400)
D/LeakCanary: | bottom_menu_vip = android.support.v7.widget.AppCompatImageButton@317099008 (0x12e68c00)
D/LeakCanary: | context = .MessageActivity@315311648 (0x12cb4620)
D/LeakCanary: | db = android.database.sqlite.SQLiteDatabase@315278272 (0x12cac3c0)
D/LeakCanary: | dbHelper = .DBHelper@315231776 (0x12ca0e20)
D/LeakCanary: | intent = null
D/LeakCanary: | isDeleteMode = false
D/LeakCanary: | ivHome = android.support.v7.widget.AppCompatImageView@317189120 (0x12e7ec00)
D/LeakCanary: | ivNewMessage = android.support.v7.widget.AppCompatImageView@316935168 (0x12e40c00)
D/LeakCanary: | long_check = false
D/LeakCanary: | lvMessage = android.widget.ListView@317337600 (0x12ea3000)
D/LeakCanary: | mAllDeleteBtn = android.support.v7.widget.AppCompatButton@317193216 (0x12e7fc00)
D/LeakCanary: | mButtomMenu = .Util.BottomMenu@315134912 (0x12c893c0)
D/LeakCanary: | mChoiceDeleteBtn = android.support.v7.widget.AppCompatButton@317174784 (0x12e7b400)
D/LeakCanary: | mDeleteLayout = android.widget.RelativeLayout@317191168 (0x12e7f400)
D/LeakCanary: | mDeleteMsgList = java.util.ArrayList@315136896 (0x12c89b80)
D/LeakCanary: | messageListItem_arr = java.util.ArrayList@315136928 (0x12c89ba0)
D/LeakCanary: | messageListViewAdapter = .MessageListViewAdapter@315137408 (0x12c89d80)
D/LeakCanary: | swipeRefreshLayout = android.support.v4.widget.SwipeRefreshLayout@317194240 (0x12e80000)
D/LeakCanary: | mDelegate = android.support.v7.app.AppCompatDelegateImplV23@319616320 (0x130cf540)
D/LeakCanary: | mEatKeyUpEvent = false
D/LeakCanary: | mResources = null
D/LeakCanary: | mThemeId = 2131296509
D/LeakCanary: | mCreated = true
D/LeakCanary: | mFragments = android.support.v4.app.FragmentController@316248976 (0x12d99390)
D/LeakCanary: | mHandler = android.support.v4.app.FragmentActivity$1@316673568 (0x12e00e20)
D/LeakCanary: | mMediaController = null
D/LeakCanary: | mNextCandidateRequestIndex = 0
D/LeakCanary: | mOptionsMenuInvalidated = false
D/LeakCanary: | mPendingFragmentActivityResults = android.support.v4.util.SparseArrayCompat@316796800 (0x12e1ef80)
D/LeakCanary: | mReallyStopped = false
D/LeakCanary: | mRequestedPermissionsFromFragment = false
D/LeakCanary: | mResumed = true
D/LeakCanary: | mRetaining = false
D/LeakCanary: | mStopped = false
D/LeakCanary: | mStartedActivityFromFragment = false
D/LeakCanary: | mStartedIntentSenderFromFragment = false
D/LeakCanary: | DEBUG_ELASTIC = true
D/LeakCanary: | isElasticEnabled = true
D/LeakCanary: | mActionBar = null
D/LeakCanary: | mActionModeTypeStarting = 0
D/LeakCanary: | mActivityInfo = android.content.pm.ActivityInfo@315032192 (0x12c70280)
D/LeakCanary: | mActivityTransitionState = android.app.ActivityTransitionState@317895872 (0x12f2b4c0)
D/LeakCanary: | mApplication = .MemoryLeakApplication@315398032 (0x12cc9790)
D/LeakCanary: | mCalled = true
D/LeakCanary: | mChangeCanvasToTranslucent = false
D/LeakCanary: | mChangingConfigurations = false
D/LeakCanary: | mComponent = android.content.ComponentName@317026416 (0x12e57070)
D/LeakCanary: | mConfigChangeFlags = 0
D/LeakCanary: | mCurrentConfig = android.content.res.Configuration@314984960 (0x12c64a00)
D/LeakCanary: | mDecor = com.android.internal.policy.PhoneWindow$DecorView@317175808 (0x12e7b800)
D/LeakCanary: | mDefaultKeyMode = 0
D/LeakCanary: | mDefaultKeySsb = null
D/LeakCanary: | mDestroyed = false
D/LeakCanary: | mDoReportFullyDrawn = false
D/LeakCanary: | mEmbeddedID = null
D/LeakCanary: | mEnableDefaultActionBarUp = false
D/LeakCanary: | mEnterTransitionListener = android.app.SharedElementCallback$1@1893266640 (0x70d8f4d0)
D/LeakCanary: | mExitTransitionListener = android.app.SharedElementCallback$1@1893266640 (0x70d8f4d0)
D/LeakCanary: | mExpandRequestListener = null
D/LeakCanary: | mFeatureContextMenuListener = android.app.Activity$FeatureContextMenuListener@316248880 (0x12d99330)
D/LeakCanary: | mFinished = false
D/LeakCanary: | mFlipfont = 0
D/LeakCanary: | mFragments = android.app.FragmentController@316248928 (0x12d99360)
D/LeakCanary: | mHandler = android.os.Handler@316673376 (0x12e00d60)
D/LeakCanary: | mHasCurrentPermissionsRequest = false
D/LeakCanary: | mIdent = 245800388
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D/LeakCanary: | Field: android.view.inputmethod.InputMethodManager.mServedView
D/LeakCanary: | Field: android.view.inputmethod.InputMethodManager.mServedInputConnection
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[edgelv34]

I don't know if gonna help,
When i returned from MainActivity to MessageActivity, the GC did not work
However, after that returned from MainActivity to SettingActivity , the GC did work

This Image shows that the GC does not operate

Explicit concurrent mark sweep GC freed 6373(412KB) AllocSpace objects, 2(40KB) LOS objects, 22% free, 54MB/70MB, paused 624us total 51.882ms

it does not work GC

This Image shows that the GC operate

Explicit concurrent mark sweep GC freed 6373(412KB) AllocSpace objects, 2(40KB) LOS objects, 22% free, 54MB/70MB, paused 624us total 51.882ms

Explicit concurrent mark sweep GC freed 25534(1239KB) AllocSpace objects, 15(46MB) LOS objects, 39% free, 9MB/15MB, paused 634us total 54.075ms

does work GC

Perhaps....is there anything relative?

[edgelv34]

I resolve this problem.

the problem is background resource in activity layout

the reason =======================================
background resource file resolution is 482 * 290

but the image path is drawable

so my phone dpi is xxxhdpi (mdpi * 4)

look at the byte[] size 8998912 from Allocation Tracking

482 * 4(mdpi * 4) * 290 * 4(mdpi * 4) * 4(ARGB_888 takes 4 Bytes) = 8998912

reference site : http://gokhanarik.com/android-background-image-high-memory-usage-issue/

I know the reasons for the increase in memory size, but I don't know why the GC is not called..

if you know please tell me the reason..

[JakeWharton]

Activities are kept in memory even when not displayed in case you press "back".

[edgelv34]

It is very kind of you to say so :)

[hccya]

Hi JakeWharton,
I hava the same problem. I don't understand why "Activities are kept in memory even when not displayed in case you press "back"", and it seems unreasonable.