我在我的应用程序中使用了一个子类,其中我使用nstimer来检测用户空闲/非活动状态。 这是一个泄漏,它在每个水龙头上都会产生。 这里是我的类泄漏在NSTimer中上升
- (void)sendEvent:(UIEvent *)event {
[super sendEvent:event];
isRootView=FALSE;
// Only want to reset the timer on a Began touch or an Ended touch, to reduce the number of timer resets.
NSSet *allTouches = [event allTouches];
if ([allTouches count] > 0) {
// allTouches count only ever seems to be 1, so anyObject works here.
UITouchPhase phase = ((UITouch *)[allTouches anyObject]).phase;
if (phase == UITouchPhaseBegan)
[self resetIdleTimer];
}
}
- (void)resetIdleTimer {
if (idleTimer)
{
if ([idleTimer isValid])
{
[idleTimer invalidate];
//[idleTimer release];
//idleTimer=nil;
}
}
maxIdleTime = 60;
if (!isRootView)
{
idleTimer = [NSTimer scheduledTimerWithTimeInterval:maxIdleTime target:self selector:@selector(idleTimerExceeded) userInfo:nil repeats:NO];
[idleTimer retain];
}
else {
if ([idleTimer isValid])
{
[idleTimer invalidate];
//[idleTimer release];
//idleTimer = nil;
}
if ([resetTimer isValid]) {
[resetTimer invalidate];
resetTimer=nil;
}
}
}
- (void)idleTimerExceeded {
alert=[[UIAlertView alloc] initWithTitle:@"Confirmation!" message:@"Would you like to continue placing the order ?" delegate:self cancelButtonTitle:@"NO" otherButtonTitles:@"YES", nil];
alert.tag=100;
[alert show];
[alert release];
resetTimer=[NSTimer scheduledTimerWithTimeInterval:maxIdleTime target:self selector:@selector(resetApplication) userInfo:nil repeats:NO] ;
}
-(void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if (alertView.tag==100) {
if (buttonIndex==1)
{
if ([resetTimer isValid]) {
[resetTimer invalidate];
resetTimer=nil;
}
}
else {
[self resetApplication];
}
}
}
-(void) resetApplication
{
isRootView=TRUE;
[alert dismissWithClickedButtonIndex:1 animated:YES];
if ([resetTimer isValid])
{
[resetTimer invalidate];
resetTimer=nil;
}
if (idleTimer)
{
[idleTimer invalidate];
[idleTimer release];
idleTimer = nil;
}
SushiTeriaAppDelegate *appDelegate=(SushiTeriaAppDelegate*)[[UIApplication sharedApplication] delegate];
[appDelegate resetApp];
}
- (void)dealloc {
[super dealloc];
//[resetTimer release];
[alert release];
}
我保留这个计时器的代码。如果不保留,则应用程序崩溃。
请指导我如何消除这种泄漏
shivam
它崩溃应用程序 –
如果([idleTimer isValid])在这一行 –
它崩溃应用程序,当我尝试使无效计时器 –