我已將CG_CONTEXT_SHOW_BACKTRACE
環境變量設置爲YES
,因爲我有以下錯誤CGContextSaveGState: invalid context 0x0
。CGContextSaveGState:應用啓動時無效的上下文0x0
下面的堆棧跟蹤沒有多大幫助。
<Error>: CGContextSaveGState: invalid context 0x0. Backtrace:
<-[UIStatusBarBatteryItemView contentsImage]+773>
<-[UIStatusBarItemView updateContentsAndWidth]+36>
<-[UIStatusBarItemView initWithItem:data:actions:style:]+503>
<+[UIStatusBarItemView createViewForItem:withData:actions:foregroundStyle:]+159>
<-[UIStatusBarLayoutManager _createViewForItem:withData:actions:]+168>
<-[UIStatusBarLayoutManager _prepareEnabledItemType:withEnabledItems:withData:actions:itemAppearing:itemDisappearing:]+3
<-[UIStatusBarLayoutManager prepareEnabledItems:withData:actions:]+108>
<-[UIStatusBarForegroundView _setStatusBarData:actions:animated:]+951>
<-[UIStatusBarForegroundView setStatusBarData:actions:animated:]+874>
<__51-[UIStatusBar _prepareToSetStyle:animation:forced:]_block_invoke+443>
<+[UIView(Animation) performWithoutAnimation:]+82>
<-[UIStatusBar _prepareToSetStyle:animation:forced:]+935>
<-[UIStatusBar _requestStyleAttributes:animationParameters:forced:]+404>
<-[UIStatusBar requestStyle:animationParameters:forced:]+490>
<-[UIStatusBar requestStyle:animated:forced:]+113>
<-[UIStatusBar forceUpdateStyleOverrides:]+97>
<-[UIStatusBar _evaluateServerRegistration]+294>
<-[UIStatusBar didMoveToSuperview]+33>
<__45-[UIView(Hierarchy) _postMovedFromSuperview:]_block_invoke+683>
<-[UIView(Hierarchy) _postMovedFromSuperview:]+484>
<-[UIView(Internal) _addSubview:positioned:relativeTo:]+2305>
<-[UIView(Hierarchy) addSubview:]+56>
<-[UIStatusBarWindow setStatusBar:]+311>
<-[UIApplication _createStatusBarWithRequestedStyle:orientation:hidden:]+384>
<-[UIApplication _runWithMainScene:transitionContext:completion:]+1047>
<__84-[UIApplication _handleApplicationActivationWithScene:transitionContext:completion:]_block_invo
<-[UIApplication workspaceDidEndTransaction:]+163>
<__37-[FBSWorkspace clientEndTransaction:]_block_invoke_2+71>
<__40-[FBSWorkspace _performDelegateCallOut:]_block_invoke+54>
<-[FBSSerialQueue _performNext]+184>
<-[FBSSerialQueue _performNextFromRunLoopSource]+52>
<FBSSerialQueueRunLoopSourceHandler+33>
<__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__+15>
<__CFRunLoopDoSources0+523>
<__CFRunLoopRun+1032>
<CFRunLoopRunSpecific+470>
<CFRunLoopRunInMode+123>
<-[UIApplication _run]+540>
<UIApplicationMain+160>
<main+94>
錯誤在啓動時發生,並且電池視圖似乎有問題。這個錯誤是否會對您產生任何影響?
FWW我的應用程序主要是用Swift 2.0編寫的,在iOS9上用Xcode 7b6編寫。
我在iOS9/Xcode 7b6下的應用程序啓動時遇到了完全相同的問題。如果我拿出任何東西,我會告訴你。 – hatfinch
使用xcode 7b6編譯應用程序時看起來像是一般問題。我有同一個。 –
它仍然出現在Xcode 7 GM上。 –