how to resume time counter value in when i start the app - ios

Question

I want to resume time counter value in when I start the app.like first my label value is 05:00 than after close the app but when I start the app agin that time timer count start to 05:00. Please help me
int timeSec,timeMin ;
- (void)viewDidLoad {
timeSec=0;
timeMin=0;
[self StartTimer];
}
-(void) StartTimer
{
timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:#selector(timerTick:) userInfo:nil repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:timer forMode:NSDefaultRunLoopMode];
}
//Event called every time the NSTimer ticks.
- (void)timerTick:(NSTimer *)timer
{
timeSec++;
if (timeSec == 60)
{
timeSec = 0;
timeMin++;
}
//Format the string 00:00
NSString* timeNow = [NSString stringWithFormat:#"%02d:%02d", timeMin, timeSec];
//Display on your label
//[timeLabel setStringValue:timeNow];
self.lbl_timer.text= timeNow;
}
//Call this to stop the timer event(could use as a 'Pause' or 'Reset')
- (void) StopTimer
{
// [timer invalidate];
timeSec = 0;
timeMin = 0;
//Since we reset here, and timerTick won't update your label again, we need to refresh it again.
//Format the string in 00:00
NSString* timeNow = [NSString stringWithFormat:#"%02d:%02d", timeMin, timeSec];
//Display on your label
// [timeLabel setStringValue:timeNow];
self.lbl_timer.text= timeNow;
}
thanks for advance..

Answer 1

Try this code.store data in nsuserdefault
- (void)viewDidLoad {
timeSec=[[NSString stringWithFormat:#"%ld",(long)[[NSUserDefaults standardUserDefaults]integerForKey:#"timeSec"]] intValue];
timeMin=[[NSString stringWithFormat:#"%ld",(long)[[NSUserDefaults standardUserDefaults]integerForKey:#"timeMin"]] intValue];
[self StartTimer];
}
-(void) StartTimer
{
timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:#selector(timerTick:) userInfo:nil repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:timer forMode:NSDefaultRunLoopMode];
self.lbl_timer.text=#"00:00";
}
- (void)timerTick:(NSTimer *)timer
{
timeSec++;
if (timeSec == 60)
{
[locationManager startUpdatingLocation];
timeSec = 0;
timeMin++;
}
self.lbl_timer.text= [NSString stringWithFormat:#"%02d:%02d", timeMin, timeSec];;
}
when you back to the screen that time add this code.like back button or close button action
[timer invalidate];
[[NSUserDefaults standardUserDefaults]setInteger:timeSec forKey:#"timeSec"];
[[NSUserDefaults standardUserDefaults]setInteger:timeMin forKey:#"timeMin"];

Answer 2

Declare two variable in appdelegate file
1)NSUserDefaults *usedefaults;
2)#property (nonatomic,readwrite) int timeSec,timeMin,isBackground;
- (void)applicationDidEnterBackground:(UIApplication *)application
{
self.isBackground=1;
usedefaults=[NSUserDefaults standardUserDefaults];
[usedefaults setObject:[NSString stringWithFormat:#"%d",self.timeMin] forKey:#"timemin"];
[usedefaults setObject:[NSString stringWithFormat:#"%d",self.timeSec] forKey:#"timesec"];
NSLog(#"Enter in back value userdefault %#",usedefaults);
}
- (void)applicationWillEnterForeground:(UIApplication *)application {
if(self.isBackground==1)
{
self.isBackground=0;
self.timeMin=[[usedefaults objectForKey:#"timemin"] intValue];
self.timeSec=[[usedefaults objectForKey:#"timesec"] intValue];
NSLog(#"Foreground value min %d sec %d",self.timeMin,self.timeSec);
}
}
In ViewDidload in your Timer startpage
app=(AppDelegate *)[[UIApplication sharedApplication] delegate];
finally just replace you self.timemin to app.timemin same for timesec.
Cheers enjoy That surely work for u ..