画面に多くの UIbuttons があり、ユーザーがボタンを押したままドラッグしてボタンを移動できるようにしたい。私はこのコードを思いつきました：
- (void) touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event {
[[NSUserDefaults standardUserDefaults] synchronize];
[[NSNotificationCenter defaultCenter] postNotificationName:@"MoveAllViewsUpForDrag" object:self userInfo:nil];
//[self.layer removeAllAnimations];
// Retrieve the touch point
CGPoint pt = [[touches anyObject] locationInView:self.view];
startLocation = pt;
originYDraggable = self.frame.origin.y;
originXDraggable = self.frame.origin.x;
[[self superview] bringSubviewToFront:self];
[UIImageView animateWithDuration:0.5 animations:^(void) {
CGRect frame = [self frame];
frame.size.width = frame.size.width + 15;
frame.size.height = frame.size.height + 15;
[self setFrame:frame];
[self setAlpha:0.6];
}];
Draggable* sharedSingleton = [Draggable sharedManagerDraggable];
//nameOfTheMessage = sharedSingleton.namePassedToDraggable;
NSLog(@"%@, %d", sharedSingleton.namePassedToDraggableArray, self.tag);
}
- (void) touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event {
// Move relative to the original touch point
CGPoint pt = [[touches anyObject] locationInView:self];
CGRect frame = [self frame];
frame.origin.x += pt.x - startLocation.x;
frame.origin.y += pt.y - startLocation.y;
[self setFrame:frame];
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
[[NSUserDefaults standardUserDefaults] synchronize];
[[NSNotificationCenter defaultCenter] postNotificationName:@"MoveAllViewsDownForDrag" object:self userInfo:nil];
CGRect frame = [self frame];
if (frame.origin.y < 50) {
SaveEventsOrganizer* sharedSingletonOrganizer = [SaveEventsOrganizer sharedManagerSaveEventsOrganizer];
Draggable* sharedSingletonDraggable = [Draggable sharedManagerDraggable];
NSString *string = sharedSingletonDraggable.namePassedToDraggableArray[self.tag - 1];
sharedSingletonOrganizer.NameOfEventPassedToOrganizerFromDraggable = string;
[sharedSingletonOrganizer addAnEvent];
[self removeFromSuperview];
}else{
[UIImageView animateWithDuration:0.5 animations:^(void) {
CGRect frame = [self frame];
frame.size.width = frame.size.width - 15;
frame.size.height = frame.size.height - 15;
frame.origin.x = originXDraggable;
frame.origin.y = originYDraggable;
[self setFrame:frame];
[self setAlpha:1.0];
}];
/*CABasicAnimation* anim = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
[anim setToValue:[NSNumber numberWithFloat:0.0f]];
[anim setFromValue:[NSNumber numberWithDouble:M_PI/80]]; // rotation angle
[anim setDuration:0.1];
[anim setRepeatCount:NSUIntegerMax];
[anim setAutoreverses:YES];
[self.layer addAnimation:anim forKey:@"iconShake"];*/
}
}
唯一の問題は、どのボタンが押されて移動したかを検出する方法がわからないことです。何か案は？？