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Resolved why bool value is not changed in dispatch

i try change bool value in dispatch_async when applicationdidenterbackground invoked. can read correct value when method invoked when try use in dispatch_asynch see not right value. here how code looks code: - (void)applicationdidenterbackground:(uiapplication *)application { __block bool isalarmon = [[nsuserdefaults standarduserdefaults] boolforkey:@"alarmsituation"]; __block bool iswarningrepeaton = [[nsuserdefaults standarduserdefaults] boolforkey:@"warningrepeat"]; nslog(@"iswarningrepeaton %d", iswarningrepeaton); bool isvibrationon = [[nsuserdefaults standarduserdefaults] boolforkey:@"vibration"]; nsstring *strsoundname = [[[nsuserdefaults standarduserdefaults] objectforkey:@"selectedsoundname"] lowercasestring]; if ([[uidevice currentdevice] ismultitaskingsupported]) { __block uibackgroundtaskidentifier background_task; bac

Do iMacs with discreet graphics use the integrated graphics adapter to save power

my late 2011 macbook pro used have used switch integrated graphics when not doing things required graphics chip in order save power. know don't have worry battery i'm still curious. know if imacs use integrated graphics when nothing using capabilities of gpu?   there's no way switch igpu on imacs. appears disabled in fashion   Forums Macs Desktops iMac iPhone Mac OS & System Software iPad Apple Watch Notebooks iTunes Apple ID iCloud Desktop Computers Apple Music Professional Applications iPod iWork Apple TV iLife Wireless

Troubles going back to 9.1 from 9.2.1

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has else had downgrading problems 9.1 9.2.1? battery tremendously bad!     Forums iPhone, iPad, and iPod Touch iOS iOS 9 iPhone Mac OS & System Software iPad Apple Watch Notebooks iTunes Apple ID iCloud Desktop Computers Apple Music Professional Applications iPod iWork Apple TV iLife Wireless

iPhone Compass not working

hello, i've had issue while on different devices. compass app not working , points time north. when reset iphone works fine restore backup stops working again seems software issue. happens on device same backup. idea how solve without loosing backed data ?   just after posting found problem. "compass calibration" disabled in preferences > privacy > location services > system services   Forums iPhone, iPad, and iPod Touch iPhone iPhone iPhone Mac OS & System Software iPad Apple Watch Notebooks iTunes Apple ID iCloud Desktop Computers Apple Music Professional Applications iPod iWork Apple TV iLife Wireless

Caucus Coverage?

any apps have live news caucus coverage? have charter sign on if needed unsure of apps watch live. help.   cnn might have coverage not sure. cnn go app login credentials.   Forums Apple TV Apple TV and Home Theater iPhone Mac OS & System Software iPad Apple Watch Notebooks iTunes Apple ID iCloud Desktop Computers Apple Music Professional Applications iPod iWork Apple TV iLife Wireless

All iPads locked at the same time

----solved------ have 3 ipads, same passcode. morning, when fired 1 up: - swiped , gave me 'enter apple id password' box. seemed odd behavior . seems passcode screen first. - entered apple id password -the ipad went apple ipad passcode screen entered 4 digit passcode. - ipad rejected on , over. 3 ipad have same passcode, 3 rejected it. saying 'reenter in 15 min'. worked yesterday. no 1 has access these accept wife , , has no clue how change password. called apple support , (no surprise here) have nuke , restore. not thing. thoughts on mess. bob   how did solve it?   Forums iPhone, iPad, and iPod Touch iPad iPad iPhone Mac OS & System Software iPad Apple Watch Notebooks iTunes Apple I

Ideas for recycling/reusing a Mac Mini chassis

i have mac mini 2010 server broke logic board while doing repair. price apple wants replace logic board usurious, that's no. looking ideas how reuse chassis - it's still pretty aluminum chassis, must other use can put to... has tried example modding external hard drive , putting external drive, etc? other ideas?   hack nuc board in there maybe.   Forums Macs Desktops Mac mini iPhone Mac OS & System Software iPad Apple Watch Notebooks iTunes Apple ID iCloud Desktop Computers Apple Music Professional Applications iPod iWork Apple TV iLife Wireless