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2014/10/15 ¤U¤È 10:14:30
iphone Programming Glossary: stoptimerCreating a StopWatch in Iphone http://stackoverflow.com/questions/13155461/creating-a-stopwatch-in-iphone code looks like ViewController.h #import UIKit UIKit.h @interface ViewController UIViewController UILabel lbl NSTimer stopTimer NSDate startDate @property strong nonatomic IBOutlet UILabel lbl IBAction startPressed id sender IBAction stopPressed id.. super didReceiveMemoryWarning Dispose of any resources that can be recreated. IBAction startPressed id sender if stopTimer nil stopTimer NSTimer scheduledTimerWithTimeInterval 1.0 10.0 target self selector @selector updateTimer userInfo.. Dispose of any resources that can be recreated. IBAction startPressed id sender if stopTimer nil stopTimer NSTimer scheduledTimerWithTimeInterval 1.0 10.0 target self selector @selector updateTimer userInfo nil repeats..
How Do I write a Timer in Objective-C? http://stackoverflow.com/questions/3519562/how-do-i-write-a-timer-in-objective-c 0.000002 seconds Total time was 0.000000 minutes Main Timer timer Timer alloc init timer startTimer Do some work timer stopTimer NSLog @ Total time was lf milliseconds timer timeElapsedInMilliseconds NSLog @ Total time was lf seconds timer timeElapsedInSeconds.. Timer.h #import Foundation Foundation.h @interface Timer NSObject NSDate start NSDate end void startTimer void stopTimer double timeElapsedInSeconds double timeElapsedInMilliseconds double timeElapsedInMinutes @end Timer.m #import Timer.h @implementation.. Timer id init self super init if self nil start nil end nil return self void startTimer start NSDate date void stopTimer end NSDate date double timeElapsedInSeconds return end timeIntervalSinceDate start double timeElapsedInMilliseconds return..
http://stackoverflow.com/questions/5862743/pausing-an-nstimer viewDidAppear animated self startTimer void viewWillDisappear BOOL animated super viewWillDisappear animated self stopTimer void startTimer NSTimer timer NSTimer alloc initWithFireDate NSDate dateWithTimeIntervalSinceNow 3.0 interval 3.0 target..
Disable Single Sign On (SSO) in Facebook IOS SDK http://stackoverflow.com/questions/6435578/disable-single-sign-on-sso-in-facebook-ios-sdk
How can you play a sound of a specified duration using AVAudioPlayer on iOS? http://stackoverflow.com/questions/6564212/how-can-you-play-a-sound-of-a-specified-duration-using-avaudioplayer-on-ios shortStartDelay 0.01 NSTimeInterval now player.deviceCurrentTime self.audioPlayer playAtTime now shortStartDelay self.stopTimer NSTimer scheduledTimerWithTimeInterval shortStartDelay duration target self selector @selector stopPlaying userInfo.. stopPlaying userInfo nil repeats NO void stopPlaying NSTimer theTimer self.audioPlayer pause Bear in mind that stopTimer will fire on the thread's run loop so there will be some variability in how long the audio plays depending on what else..
Detect if the user has touched the screen http://stackoverflow.com/questions/9251174/detect-if-the-user-has-touched-the-screen tenthTimer NSInteger tenthPast @property nonatomic assign id MyKindOfWindowDelegate touchDelegate void startTimer void stopTimer void timerTick @end @protocol MyKindOfWindowDelegate NSObject @required void noTouchForFiveSeconds @end .mmmm #import PageFlipperAppDelegate.h.. UIApplication application stopping timer since we're going to background MyKindOfWindow self.window stopTimer void applicationDidBecomeActive UIApplication application you can start timer when app became active or somewhere later.. nil tenthPast 0 tenthTimer nil return self void startTimer NSLog @ starting timer tenthPast 0 if tenthTimer self stopTimer tenthTimer NSTimer timerWithTimeInterval 0.1 target self selector @selector timerTick userInfo nil repeats YES..
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