iOS UIButton单双击处理响应不同的方法
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//显示目标 双击显示当前用户坐标位置 UIButton * btnShowDistination = [[UIButton alloc]initWithFrame:CGRectMake(15, SCREEN_HEIGHT-110-64, 35, 35)]; [btnShowDistination setBackgroundImage:[UIImage imageNamed:@"show_distination"] forState:UIControlStateNormal]; [btnShowDistination addTarget:self action:@selector(btnTouchOne:forEvent:) forControlEvents:UIControlEventTouchDown]; [btnShowDistination addTarget:self action:@selector(buttonRepeatAction:) forControlEvents:UIControlEventTouchDownRepeat]; [self.view addSubview:btnShowDistination]; } - (void)btnTouchOne:(UIButton *)sender forEvent:(UIEvent *)event { [self performSelector:@selector(showDistination:) withObject:sender afterDelay:0.3]; } - (void)buttonRepeatAction:(UIButton *)sender{ [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(showDistination:) object:sender]; [self showsUserLocation:sender]; } - (void)showsUserLocation:(UIButton *)sender { if (_mapView.userLocation) { [_mapView setCenterCoordinate:_mapView.userLocation.coordinate animated:YES]; _mapView.zoomLevel = 17; } } - (void)showDistination:(UIButton *)sender{ if (_circle) { [_mapView setCenterCoordinate:_circle.coordinate animated:NO]; _mapView.zoomLevel = 17; } }
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