IOS(UI)_手势1

手势_1

手指触碰屏幕：

-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
NSLog(@"手指触碰屏幕");
//获取对象
UITouch *touch = [touches anyObject];
//对象个数
NSLog(@"touch.tapCount = %lu",touch.tapCount);

//显示触摸开始和最后改变的时间
NSLog(@"timestamp =%f",touch.timestamp);

NSLog(@"%lu根手指",event.allTouches.count);

//    CGPoint point = [touch locationInView:self.view];
//    NSLog(@"point = %@",[NSValue valueWithCGPoint:point]);
/*
返回所有触摸对象
*/
NSSet *set = event.allTouches;
for (UITouch *t in set)
{
//找到手指在屏幕的位置
CGPoint point = [t locationInView:self.view];
NSLog(@"point = %@",[NSValue valueWithCGPoint:point]);
}

}

手指在屏幕上移动:

-(void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
NSLog(@"手指在屏幕上移动");

NSSet *set = event.allTouches;
for (UITouch *t in set)
{
CGPoint point = [t locationInView:self.view];
NSLog(@"point = %@",[NSValue valueWithCGPoint:point]);
}

}

手指离开屏幕:

-(void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
NSLog(@"手指离开屏幕");

}

无法识别的手势:

-(void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
NSLog(@"无法识别的手势");
}