IOS學習 觸控和手勢UITouch 單擊雙擊、移動檢視
@interface HomeViewController : UIViewController
{
UIView *touchView;
UITouch *touch;
NSInteger *tapcount;
CGPoint point;
UIView *movieView;
}
@end
@implementation HomeViewController
- (void)viewDidLoad {
[superviewDidLoad];
// Do any additional setup after loading the view.
touchView = [[UIViewalloc]initWithFrame:CGRectMake(0, 20, self.view.bounds.size.width, 500)];
touchView.backgroundColor = [UIColorcyanColor];
[self.view addSubview:touchView];
//是否支援多點觸控，預設為NO
touchView.multipleTouchEnabled = YES ;
//是否開啟觸控事件，預設為開啟
touchView.userInteractionEnabled = YES;
movieView
movieView.backgroundColor = [UIColorredColor];
[touchView addSubview:movieView];
}
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
// NSLog(@"touchesBegan");
touch = [touches anyObject]; //獲取點選內容
tapcount = touch.tapCount; //獲取短時間內點選的次數
NSLog(@"tapCount = %d",tapcount);
//設定單雙擊事件
if (tapcount == 1) {
//延遲時間呼叫單擊事件
[selfperformSelector:@selector(singleTap) withObject:nilafterDelay:0.5];
}else if(tapcount == 2){
//取消單擊延遲事件
[NSObjectcancelPreviousPerformRequestsWithTarget:selfselector:@selector(singleTap) object:nil];
[self doubleTap];
}
//獲取觸控點在檢視上的座標
point = [touchlocationInView:touchView];
NSLog(@"%@",NSStringFromCGPoint(point));//將座標轉換成字元列印
}
- (void)singleTap{
NSLog(@"單擊");
}
- (void)doubleTap{
NSLog(@"雙擊");
}
-(void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
// NSLog(@"touchesMoved");
//重新獲取
touch = [touches anyObject];
point = [touchlocationInView:touchView];
CGRect frame = movieView.frame; //獲取frame值
frame.origin = point; //將移動游標的座標賦值給frame
movieView.frame = frame; //重新賦值給檢視movieView
}
-(void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
// NSLog(@"touchesEnded");
}
-(void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
// NSLog(@"touchesCancelled");
}