Ordinary timer implementation

Timer code: _hour,_minute initial value is 0;

Calculation time

-(void) time

{

Execute @selector after 60 seconds: method

_timer = [nstimer scheduledtimerwithtimeinterval:60.0f target: Self Selector:@selector(updatetimer:) userInfo:nil repeats:YES];

< Span class= "S6" > < Span class= "S3" >//is displayed when the minute is 0: time 0:0

_iwifiview. Onlinetime. Text = [nsstring stringwithformat:@ "%d time%d ", _hour, _ Minute];

}

-(void) Updatetimer: (nstimer *) sender{

Output test

NSLog(@ " time %d %d ", _hour, _minute );

When 1 hours are reached, change the display time of the hour and let the minutes start again from zero

if (_minute = = ) {

_hour++;

_minute = 0;

}else{

_minute++;

}

Time is a label, and it is displayed with a label

_time. Text = [nsstring stringwithformat:@ "%d time%d ", _hour , _minute];

}

Ordinary timer implementation