best battery life app

may also be related to the way the root view controller is set. The problem was that, in the Viewdidload method of the root view controller, Addobserver was used to see if a background task was done. , and this background task is started in didfinishlaunchingwithoptions. On iOS 7, Viewdidload is executed first after the root view controller is constructed, so that Addobserver executes before the background task sends the message, and the whole process is fine, but on iOS 8, the background task

code information you send to your friend can also be browsed and queried in the "My Packing list". 8. can start the theme of interactive communicationfor the package code sent, there is a topic "communication area", can be "word" or "reply", the theme of interactive communication, the information can only be interacted with each other, belonging to private information. 9. supporting novels and micro-fiction serialsYou can publish the work in a serialized way in the love of the literary talent

Now has been anti-compilation to the school campus card recharge app login password encryption algorithm, I have been able to recharge the function extracted.So the first feature of the app is the ability to recharge campus cards and view consumption records ...There is the choice of classes, I PC-side, (haha does not count pc), Python's grab code as early as the first half of the completion of the school.

;inactive->activeSuspended->background This method is not called hereBackground->inactive CallApplicationwillenterforeground: (uiapplication*) ApplicationInactive->active Call(void) applicationdidbecomeactive: (uiapplication *) applicationMemory Purge---Scenario termination the application is running in the background (hangs), and if the system emits a low memory warning, the memory terminator is cleared to meet the memory requirements of other applications. Background->suspended->not running (b

Develop applications to understand their lifecycle.Today we touch the life cycle of the iOS app, the iOS portal in the main.m file:int main (int argc, char * argv[]) { @autoreleasepool { return Uiapplicationmain (argc, argv, Nil, Nsstringfromclas S ([Appdelegate class]));} }The two parameters of the main function are not available in iOS, including the two parameters for consistency with standa

1, application state 1.1, not running-is not runningProgram does not start1.2, inactive-not activatedThe program runs in the foreground, but no events are received, and the program stays in this state without event handling1.3. active-activationThe program runs in the foreground and receives the event, which is also a normal mode of the foreground1.4, background-backstageThe program in the background and can execute code, most of the program into this state will stay in this state for a while, t

The life cycle of an iOS app—————————————————————————— the entry function for the entire application-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (nsdictionary *) launchOptions{return YES;}—————————————————————————— never active to Active state-(void) Applicationwillresignactive: (uiapplication *) application{Sent when the application are about to move from active to inac

House prices, car prices, mobile phone prices are soaring, how can timely discovery of preferential prices, and how to snap up to cheap goods? Today, a wide range of Internet applications provide a variety of inquiries and ordering services, the information is a big bang. But the consumer faces these numerous information, but often can feel dazzling, at a loss. The Firefox Application Center has launched a one-stop app to help you live a budget-consci

) Service processThere is a service that has been started with the StartService () method, although these process users cannot see directly, but what they do is the user's concern (for example: background MP3 playback or background network data upload/download). Therefore, the system will run these processes until the memory is insufficient to maintain all foreground processes and visible processes.(4) Background (Background) sessionHaving an activity that is not visible to the current user (its

user browses the page, the program stores the user's login hash. The information inside is updated and the user's token and current timestamp are added to the ordered collection of the most recently logged-in user; If a user is browsing a product page, the program also adds the item to the ordered collection of items that the user has recently browsed and trims the ordered set when the number of items recorded exceeds 25. 3. Because the memory required to store session data is increasing over t