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BKSProcessAssertion is a class introduced in iOS 6, implemented in BackBoardServices.framework (before iOS 8) or AssertionServices.framework (iOS 8). As described by Adam Bell, "This class allows you to give a certain application permissions to stay alive and not be killed by watchdog."
Methods
| Signature | +(NSString*)NameForReason:(NSUInteger)reason; |
|---|---|
| Available in | 6.0– |
| Reason | Result | Availability | ||
|---|---|---|---|---|
| iOS 6.x | iOS 7.x | iOS 8.x | ||
| 0 | @"none" | Yes | ||
| 1 | @"audio" | Yes | ||
| 2 | @"location" | Yes | ||
| 3 | @"external-accessory" | Yes | ||
| 4 | @"finishTask" | Yes | ||
| 5 | @"bluetooth" | Yes | ||
| 6 | @"networkAuthentication" | Yes | ||
| 7 | @"backgroundUI" | Yes | ||
| 8 | @"interAppAudioStreaming" | Yes | ||
| 9 | @"viewServices" | Yes | ||
| 10 | @"newsstandDownload" | Yes | ||
| 11 | @"backgroundDownload" | Yes | ||
| 12 | @"voIP" | No | Yes | |
| 13 | @"extension" | No | Yes | |
| 14 | @"continuityStreams" | No | Yes | |
| Other (15-9999) | @"Unknown" | Yes | ||
| 10000 | @"activation" | Yes | ||
| 10001 | @"suspend" | Yes | ||
| 10002 | @"transientWakeup" | Yes | ||
| 10003 | @"voip" | Yes | No | |
| @"periodicTask" | No | Yes | ||
| 10004 | @"finishTaskUnbounded" | Yes | ||
| 10005 | @"continuous" | Yes | ||
| 10006 | @"backgroundContentFetching" | Yes | ||
| 10007 | @"notificationAction" | No | Yes | |
| Other (10008-49999) | @"Unknown" | Yes | ||
| 50000 | @"finishTaskAfterBackgroundContentFetching" | No | Yes | |
| 50001 | @"finishTaskAfterBackgroundDownload" | No | Yes | |
| 50002 | @"finishTaskAfterPeriodicTask" | No | Yes | |
| 50003 | @"finishTaskAfterNotificationAction" | No | Yes | |
| Other (50004+) | @"Unknown" | Yes | ||
References
- Breaking Chat Heads out of the iOS Sandbox by Adam Bell
- Header (before iOS 8): https://github.com/mattlawer/iOS6-Private-Frameworks/blob/master/BackBoardServices/BKSProcessAssertion.h
- Header (iOS 8): https://github.com/nst/iOS-Runtime-Headers/blob/master/PrivateFrameworks/AssertionServices.framework/BKSProcessAssertion.h
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