Avoid multiple responses caused by button quick clicks

1. The timer can be used for delay.

-(void) Timeenough

{

UIButton *btn= (uibutton*) [Self.view viewwithtag:33];

Btn.selected=no;

[Timer invalidate];

Timer=nil;

}

-(void) Btndone: (uibutton*) btn

{

if (btn.selected) return;

Btn.selected=yes;

[Self performselector: @selector (Timeenough) Withobject:nil afterdelay:3.0]; Use delay to limit.

To do something.

｝

2. Cancel the task before the time is executed. personally think this method is more useful.

-(void) todosomething: (ID) sender

{

Do the buttons here to do the things you want to do.

}

-(void) starbuttonclicked: (ID) sender

{

The task is canceled before the time of execution.

[Self- class] cancelpreviousperformrequestswithtarget:self selector:@selector (todosomething:) object:sender];

[self performselector:@selector (todosomething:) Withobject:sender afterdelay:0.2f];

}

Avoid multiple responses caused by button quick clicks