Hiển thị các bài đăng có nhãn Long tap even. Hiển thị tất cả bài đăng
Hiển thị các bài đăng có nhãn Long tap even. Hiển thị tất cả bài đăng

Thứ Năm, 30 tháng 9, 2010

How to handle long tap even

This is my simple method to do this on touch began u have to get the point and store it as first and second that should be equal for future compare and then start timer, when the timer ends u have to compare first and second, if it equals then its long press!

And if the touches ends or moved u have to break timer as well as store the point as second point!!

some more detailed
Code:

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ 

UITouch *touch = [touches anyObject];
firstPoint=secondPoint = [touch locationInView:self];
//start timer
}

-(void)onTimerCall{

//check first and second point for equals if it equals its long tap

}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{

UITouch *touch = [touches anyObject];
secondPoint = [touch locationInView:self];

}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{

UITouch *touch = [touches anyObject];
secondPoint = [touch locationInView:self];
}