改变方向时活动消失

分类：编程问答

如何解决改变方向时活动消失

我有一个名为 XvfActivity 的活动，用于显示项目列表。当我旋转手机时，活动就会消失，日志中没有错误。该活动没有要保留的额外内容。

然后我在活动的清单中添加了以下行（不更改活动本身的任何内容）：

android:configChanges="orientation|screenSize|screenLayout|keyboardHidden"

然后一切正常，尽管我的活动没有处理这些事件。

我可以离开这条线而忘记这个问题，但我想知道我做错了什么。我还有其他更复杂的活动，它们在清单中没有这一行就可以很好地旋转。

这是轮换事件中的 logcat（所有应用，>= 警告），我的应用名为 com.floritfoto.apps.xvf：

 23:29:26.122 9965-9965/? W/DividerImeController: onImeStartPositioning mTargetShown=false isDividerVisible=false
 23:29:24.516 2401-2409/? E/perfsdkserver: [Interface] BpPerfSDKService::connectionRequest()
 23:29:24.755 779-2278/? E/NativeCustomFrequencyManager: [NativeCFMS] BpCustomFrequencyManager::acquire()
 23:29:25.495 6737-6737/? W/adbd: timeout expired while flushing socket,closing
--- beginning of system
 23:29:25.539 9655-9689/? W/ImageReader_JNI: Unable to acquire a buffer item,very likely client tried to acquire more than maxImages buffers
 23:29:25.592 9466-9483/? E/HYPER-HAL: [HandlerSysfs.cpp]doResourceHandling(): Couldn't Open Sysfs - /sys/power/cstate_control
 23:29:25.611 10194-10194/? W/SGestureOverlayWindow: removeGestureOverlayWindow return by mOverlayWindow == null
 23:29:25.627 779-1080/? E/BufferQueueProducer: [ScreenDecorOverlay$_9965#0](id:30b00001aeb,api:0,p:-1,c:779) disconnect: not connected (req=1)
 23:29:25.627 9965-10461/? W/libEGL: EGLNativeWindowType 0x72542e6d00 disconnect failed
 23:29:25.644 779-1080/? E/BufferQueueProducer: [ScreenDecorOverlay$_9965#0](id:30b00001aeb,c:779) disconnect: not connected (req=1)
 23:29:25.644 9965-10461/? W/libEGL: EGLNativeWindowType 0x72542e6d00 disconnect failed
 23:29:25.674 9965-9965/? W/View: requestLayout() improperly called by android.widget.LinearLayout{d7157ad V.E...C.. ......ID 805,8-805,8 #0} during layout: running second layout pass
 23:29:25.674 9965-9965/? W/View: requestLayout() improperly called by android.widget.LinearLayout{ec73ae2 V.E...C.. ......ID 805,8 #1} during layout: running second layout pass
 23:29:25.674 9965-9965/? W/View: requestLayout() improperly called by android.widget.LinearLayout{b911e73 V.E...C.. ......ID 805,8 #2} during layout: running second layout pass
 23:29:25.674 9965-9965/? W/View: requestLayout() improperly called by android.widget.LinearLayout{4033130 V.E...C.. ......ID 805,8 #3} during layout: running second layout pass
 23:29:25.682 9965-10556/? E/TaskStackListenerAbstract: onTaskSnapshotChanged called by Binder.getCallingPid() 0 android.app.ITaskStackListener$Stub.onTransact:587 android.os.Binder.execTransactInternal:1195 android.os.Binder.execTransact:1159 <bottom of call stack>
 23:29:25.685 779-836/? E/BufferQueueProducer: [com.floritfoto.apps.xvf/com.floritfoto.apps.xvf.XvfActivity$_11131#0](id:30b00002a5b,c:779) disconnect: not connected (req=1)
 23:29:25.685 11131-12824/com.floritfoto.apps.xvf W/libEGL: EGLNativeWindowType 0x7254353630 disconnect failed
 23:29:25.697 12679-15672/? E/TaskStackListenerAbstract: onTaskSnapshotChanged called by Binder.getCallingPid() 0 android.app.ITaskStackListener$Stub.onTransact:587 android.os.Binder.execTransactInternal:1195 android.os.Binder.execTransact:1159 <bottom of call stack>
 23:29:25.723 779-1871/? E/BufferQueueProducer: [StatusBar$_9965#0](id:30b00001aea,c:779) disconnect: not connected (req=1)
 23:29:25.723 9965-10461/? W/libEGL: EGLNativeWindowType 0x72542eb120 disconnect failed
 23:29:25.749 779-1871/? E/BufferQueueProducer: [NavigationBar0$_9965#0](id:30b00001ae9,c:779) disconnect: not connected (req=1)
 23:29:25.750 9965-10461/? W/libEGL: EGLNativeWindowType 0x725430b010 disconnect failed
 23:29:25.782 9655-10092/? E/ActivityThread: Failed to find provider info for com.sec.android.desktopmode.uiservice.SettingsProvider
 23:29:25.782 9655-10092/? E/InputMethodManagerService: Failed to get settings
 23:29:25.795 9655-9890/? E/PkgPredictorService-Collector: record changed bt=0  wifi=1 screen=1
 23:29:25.797 9466-9466/? E/HYPER-HAL: [SysfsControlManager.cpp]writeSysfs(): Couldn't Open Sysfs - /sys/kernel/ert/boost_frt_threshold
 23:29:25.836 9655-9774/? E/WallpaperManagerService: landscapeColors is calculated already
 23:29:25.837 9655-11051/? W/WindowManager: Failed looking up window session=Session{b5ac8c2 11131:u0a10369} callers=com.android.server.wm.WindowManagerService.windowForClientLocked:6102 com.android.server.wm.Session.insetsModified:506 android.view.IWindowSession$Stub.onTransact:1383
 23:29:25.885 11131-11131/com.floritfoto.apps.xvf W/IInputConnectionWrapper: beginBatchEdit on inactive InputConnection
 23:29:25.885 11131-11131/com.floritfoto.apps.xvf W/IInputConnectionWrapper: endBatchEdit on inactive InputConnection
 23:29:25.892 9466-9483/? E/HYPER-HAL: [HandlerSysfs.cpp]doResourceHandling(): Couldn't Open Sysfs - /sys/power/cstate_control
 23:29:25.896 9655-11499/? W/WindowManager: Execute app transition: mNextAppTransition=TRANSIT_TASK_CLOSE,displayId: 0 Callers=com.android.server.wm.RootWindowContainer.executeAppTransitionForAllDisplay:2586 com.android.server.wm.ActivityStackSupervisor.reportResumedActivityLocked:2225 com.android.server.wm.ActivityRecord.completeResumeLocked:5646 com.android.server.wm.ActivityStack.resumeTopActivityInnerLocked:2409 com.android.server.wm.ActivityStack.resumeTopActivityUncheckedLocked:1860
 23:29:25.898 11131-11131/com.floritfoto.apps.xvf W/IInputConnectionWrapper: getExtractedText on inactive InputConnection
 23:29:25.915 11131-11131/com.floritfoto.apps.xvf W/IInputConnectionWrapper: getTextBeforeCursor on inactive InputConnection
 23:29:25.915 10602-10602/? E/FullInputEventModel: onStartInputView event aborted: i73: Could not create reset composing text event (class i73)
 23:29:25.950 9466-9466/? E/HYPER-HAL: [SysfsControlManager.cpp]writeSysfs(): Couldn't Open Sysfs - /sys/kernel/ert/boost_frt_threshold
 23:29:25.995 11131-11131/com.floritfoto.apps.xvf W/IInputConnectionWrapper: getExtractedText on inactive InputConnection
 23:29:25.996 10602-10602/? E/InputMethodService: Unexpected null in startExtractingText : mExtractedText = null,input connection = InputConnectionWrapper{idHash=#57aad15 mMissingMethods=}
 23:29:25.998 11131-11131/com.floritfoto.apps.xvf W/IInputConnectionWrapper: getExtractedText on inactive InputConnection
 23:29:25.999 10602-10602/? E/InputMethodService: Unexpected null in startExtractingText : mExtractedText = null,input connection = InputConnectionWrapper{idHash=#57aad15 mMissingMethods=}
 23:29:26.044 11131-11131/com.floritfoto.apps.xvf W/IInputConnectionWrapper: getExtractedText on inactive InputConnection
 23:29:26.045 11163-11163/? E/Nova.DragLayer: Ignoring measure for invalid size. Landscape:false MeasureSpec: EXACTLY 2400 MeasureSpec: EXACTLY 1080
 23:29:26.046 779-1871/? E/BufferQueueProducer: [com.teslacoilsw.launcher/com.teslacoilsw.launcher.NovaLauncher$_11163#0](id:30b00002a5f,c:779) disconnect: not connected (req=1)
 23:29:26.046 11163-11321/? W/libEGL: EGLNativeWindowType 0x7254404160 disconnect failed
 23:29:26.048 10602-10602/? E/InputMethodService: Unexpected null in startExtractingText : mExtractedText = null,input connection = InputConnectionWrapper{idHash=#57aad15 mMissingMethods=}
 23:29:26.054 779-836/? E/BufferQueueProducer: [com.floritfoto.apps.xvf/com.floritfoto.apps.xvf.XvfActivity$_11131#0](id:30b00002a5e,c:779) disconnect: not connected (req=1)
 23:29:26.054 11131-12824/com.floritfoto.apps.xvf W/libEGL: EGLNativeWindowType 0x7254353630 disconnect failed
 23:29:26.118 10602-10602/? E/FullInputEventModel: selectionUpdated event aborted: i73: Could not create selection changed event (class i73)
 23:29:26.120 11163-11163/? E/Nova.DragLayer: Ignoring measure for invalid size. Landscape:false MeasureSpec: EXACTLY 2400 MeasureSpec: EXACTLY 1080
 23:29:26.122 9965-9965/? W/DividerImeController: onImeStartPositioning mTargetShown=false isDividerVisible=false
 23:29:26.138 11163-11163/? E/Nova.DragLayer: Ignoring measure for invalid size. Landscape:false MeasureSpec: EXACTLY 2400 MeasureSpec: EXACTLY 1080
 23:29:26.139 779-2026/? E/BufferQueueProducer: [InputMethod$_10602#0](id:30b00002a5c,c:779) disconnect: not connected (req=1)
 23:29:26.139 10602-10687/? W/libEGL: EGLNativeWindowType 0x72545bcc50 disconnect failed
 23:29:26.164 11163-11163/? E/Nova.DragLayer: Ignoring measure for invalid size. Landscape:false MeasureSpec: EXACTLY 2400 MeasureSpec: EXACTLY 1080
 23:29:26.190 9655-9692/? W/ImageReader_JNI: Unable to acquire a buffer item,very likely client tried to acquire more than maxImages buffers
 23:29:26.241 9655-9692/? W/ImageReader_JNI: Unable to acquire a buffer item,very likely client tried to acquire more than maxImages buffers
 23:29:26.274 735-1254/? E/Sensors: Sensor : Meta event
 23:29:26.300 9466-9483/? E/HYPER-HAL: [HandlerSysfs.cpp]doResourceHandling(): Couldn't Open Sysfs - /sys/power/cstate_control
 23:29:26.309 10194-10194/? W/SGestureOverlayWindow: removeGestureOverlayWindow return by mOverlayWindow == null
 23:29:26.311 779-837/? E/BufferQueueProducer: [com.teslacoilsw.launcher/com.teslacoilsw.launcher.NovaLauncher$_11163#0](id:30b00002a5f,c:779) disconnect: not connected (req=1)
 23:29:26.311 11163-11321/? W/libEGL: EGLNativeWindowType 0x7254404160 disconnect failed
 23:29:26.327 9655-11499/? W/ActivityTaskManager: Finishing task with all activities already finished
 23:29:26.327 9655-11499/? W/ActivityTaskManager: Duplicate finish request for r=ActivityRecord{3e4e083 u0 com.floritfoto.apps.xvf/.XvfActivity t46752 f}}
 23:29:26.329 779-1080/? E/BufferQueueProducer: [ScreenDecorOverlay$_9965#0](id:30b00001aeb,c:779) disconnect: not connected (req=1)
 23:29:26.329 9965-10461/? W/libEGL: EGLNativeWindowType 0x72542e6d00 disconnect failed
 23:29:26.338 779-2026/? E/BufferQueueProducer: [com.android.systemui.ImageWallpaper$_9965#0](id:30b00001ae8,c:779) disconnect: not connected (req=1)
 23:29:26.339 9965-10112/? W/libEGL: EGLNativeWindowType 0x72542dc2b0 disconnect failed
 23:29:26.342 779-1871/? E/BufferQueueProducer: [ScreenDecorOverlay$_9965#0](id:30b00001aeb,c:779) disconnect: not connected (req=1)
 23:29:26.342 9965-10461/? W/libEGL: EGLNativeWindowType 0x72542e6d00 disconnect failed
 23:29:26.343 11163-11163/? W/Settings: Setting always_finish_activities has moved from android.provider.Settings.System to android.provider.Settings.Global,returning read-only value.
 23:29:26.357 9965-9965/? W/View: requestLayout() improperly called by android.widget.LinearLayout{9e59be V.E...C.. ......ID 494,22-494,22 #0} during layout: running second layout pass
 23:29:26.357 9965-9965/? W/View: requestLayout() improperly called by android.widget.LinearLayout{9b84a1f V.E...C.. ......ID 494,22 #1} during layout: running second layout pass
 23:29:26.357 9965-9965/? W/View: requestLayout() improperly called by android.widget.LinearLayout{d07316c V.E...C.. ......ID 494,22 #2} during layout: running second layout pass
 23:29:26.373 779-2026/? E/BufferQueueProducer: [StatusBar$_9965#0](id:30b00001aea,c:779) disconnect: not connected (req=1)
 23:29:26.373 9965-10461/? W/libEGL: EGLNativeWindowType 0x72542eb120 disconnect failed
 23:29:26.393 779-837/? E/BufferQueueProducer: [NavigationBar0$_9965#0](id:30b00001ae9,c:779) disconnect: not connected (req=1)
 23:29:26.393 9965-10461/? W/libEGL: EGLNativeWindowType 0x725430b010 disconnect failed
 23:29:26.434 779-1080/? E/BufferQueueProducer: [StatusBar$_9965#0](id:30b00001aea,c:779) disconnect: not connected (req=1)
 23:29:26.434 9965-10461/? W/libEGL: EGLNativeWindowType 0x72542eb120 disconnect failed
 23:29:26.449 779-1871/? E/BufferQueueProducer: [NavigationBar0$_9965#0](id:30b00001ae9,c:779) disconnect: not connected (req=1)
 23:29:26.449 9965-10461/? W/libEGL: EGLNativeWindowType 0x725430b010 disconnect failed
 23:29:26.471 9655-11808/? W/WindowManager: Execute app transition: mNextAppTransition=TRANSIT_NONE,displayId: 0 Callers=com.android.server.wm.WindowManagerService.prepareNoneTransitionForRelaunching:2145 com.android.server.wm.WindowManagerService.addWindow:1929 com.android.server.wm.Session.addToDisplayAsUser:180 android.view.IWindowSession$Stub.onTransact:695 com.android.server.wm.Session.onTransact:143
 23:29:26.485 11163-11163/? E/Nova.DragLayer: Ignoring measure for invalid size. Landscape:true MeasureSpec: EXACTLY 1080 MeasureSpec: EXACTLY 2400
 23:29:26.501 9655-11201/? W/WindowManager: Execute app transition: mNextAppTransition=TRANSIT_NONE,displayId: 0 Callers=com.android.server.wm.ActivityStack.executeAppTransition:4009 com.android.server.wm.RootWindowContainer.resumeFocusedStacksTopActivities:2690 com.android.server.wm.RootWindowContainer.resumeFocusedStacksTopActivities:2652 com.android.server.wm.ActivityRecord.destroyed:3549 com.android.server.wm.ActivityTaskManagerService.activityDestroyed:2617
 23:29:26.501 9655-11201/? W/WindowManager: Execute app transition: mNextAppTransition=TRANSIT_NONE,displayId: 0 Callers=com.android.server.wm.ActivityStack.executeAppTransition:4009 com.android.server.wm.ActivityStack.resumeTopActivityInnerLocked:1981 com.android.server.wm.ActivityStack.resumeTopActivityUncheckedLocked:1860 com.android.server.wm.RootWindowContainer.resumeFocusedStacksTopActivities:2715 com.android.server.wm.RootWindowContainer.resumeFocusedStacksTopActivities:2652
 23:29:26.508 11163-11163/? E/Nova.DragLayer: Ignoring measure for invalid size. Landscape:true MeasureSpec: EXACTLY 1080 MeasureSpec: EXACTLY 2400
 23:29:26.517 9965-9965/? E/ExpandableNotifRow: onNotificationUpdated() NSSL is null..
 23:29:26.520 10602-10617/? W/System: A resource failed to call close.
 23:29:26.538 9655-11201/? E/WallpaperManagerService: landscapeColors is calculated already
 23:29:26.539 779-1871/? E/BufferQueueProducer: [com.teslacoilsw.launcher/com.teslacoilsw.launcher.NovaLauncher$_11163#0](id:30b00002a61,c:779) disconnect: not connected (req=1)
 23:29:26.539 11163-11321/? W/libEGL: EGLNativeWindowType 0x7254404160 disconnect failed
 23:29:26.546 11163-11163/? W/Settings: Setting always_finish_activities has moved from android.provider.Settings.System to android.provider.Settings.Global,returning read-only value.
 23:29:26.633 9655-9915/? W/WindowManager: Failed looking up window session=Session{5b4d5a4 11163:u0a10297} callers=com.android.server.wm.WindowManagerService.windowForClientLocked:6102 com.android.server.wm.Session.insetsModified:506 android.view.IWindowSession$Stub.onTransact:1383
 23:29:26.634 9655-9915/? W/WindowManager: Failed looking up window session=Session{5b4d5a4 11163:u0a10297} callers=com.android.server.wm.WindowManagerService.windowForClientLocked:6102 com.android.server.wm.Session.insetsModified:506 android.view.IWindowSession$Stub.onTransact:1383
 23:29:26.692 9466-13427/? E/HYPER-HAL: [HandlerSysfs.cpp]doResourceHandling(): Couldn't Open Sysfs - /sys/power/cstate_control
 23:29:26.888 779-1871/? E/BufferQueueProducer: [InputMethod$_10602#0](id:30b00002a5c,c:779) disconnect: not connected (req=1)
 23:29:26.888 10602-10687/? W/libEGL: EGLNativeWindowType 0x72545bcc50 disconnect failed
 23:29:26.889 9655-9915/? E/WindowManager: win=Window{902a6a5 u0 InputMethod} destroySurfaces: appStopped=true win.mWindowRemovalAllowed=false win.mRemoveOnExit=false win.mViewVisibility=8 caller=com.android.server.wm.WindowManagerService.tryStartExitingAnimation:2903 com.android.server.wm.WindowManagerService.relayoutWindow:2611 com.android.server.wm.Session.relayout:217 android.view.IWindowSession$Stub.onTransact:856 com.android.server.wm.Session.onTransact:143 android.os.Binder.execTransactInternal:1190 android.os.Binder.execTransact:1159
 23:29:26.908 9655-9692/? W/ImageReader_JNI: Unable to acquire a buffer item,very likely client tried to acquire more than maxImages buffers
 23:29:26.935 779-2278/? E/NativeCustomFrequencyManager: [NativeCFMS] BpCustomFrequencyManager::acquire()
 23:29:27.300 9466-13419/? E/HYPER-HAL: [HandlerSysfs.cpp]doResourceHandling(): Couldn't Open Sysfs - /sys/power/cstate_control

我知道我没有提供太多数据，但我根本不知道问题出在哪里，因为我在日志中没有看到相关错误（或者，更好的是，我应该说我不明白）。对此表示抱歉。

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