我正在尝试自己实现，长按和删除苹果的功能。
我几乎实现了，但有些事情我想不通。
当摇动动画开始删除按钮时不要触摸。
删除视图时如何处理。
这是我的代码；
self.frame = CGRectMake(0, 0, 1024, 768);
[self setBackgroundColor:[[UIColor blackColor] colorWithAlphaComponent:0.8]];
circleView = [[UIView alloc] initWithFrame:CGRectMake(50,55,90,90)];
circleView.layer.cornerRadius = 45;
circleView.backgroundColor = [[UIColor whiteColor] colorWithAlphaComponent:1];
circleView.layer.borderColor = [[UIColor blackColor] CGColor];
circleView.layer.borderWidth = 4;
UILabel* circleIndex = [[UILabel alloc] init];
circleIndex.frame = CGRectMake(30, 25, 40, 40);
[circleIndex setFont:[UIFont fontWithName:@"Arial-BoldMT" size:40]];
[circleIndex setText:@"A"];
[circleView addSubview:circleIndex];
UIView *exitView = [[UIView alloc] initWithFrame:CGRectMake(78,5,20,20)];
exitView.layer.cornerRadius = 10;
exitView.backgroundColor = [[UIColor redColor] colorWithAlphaComponent:1];
exitView.layer.borderColor = [[UIColor whiteColor] CGColor];
exitView.layer.borderWidth = 2;
UILabel* exitLabel = [[UILabel alloc] init];
exitLabel.frame = CGRectMake(5, 0.5, 25, 20);
[exitLabel setFont:[UIFont fontWithName:@"Arial-BoldMT" size:25]];
[exitLabel setTextColor:[UIColor whiteColor]];
[exitLabel setBackgroundColor:[UIColor clearColor]];
[exitLabel setText:@"-"];
[exitView addSubview:exitLabel];
[circleView addSubview:exitView];
UIView *alertView = [[UIView alloc]initWithFrame:CGRectMake(40, 80, 944, 600)];
[exitView setUserInteractionEnabled:YES];
UILongPressGestureRecognizer *longPress =
[[UILongPressGestureRecognizer alloc] initWithTarget:self
action:@selector(handleLongPress:)];
[circleView addGestureRecognizer:longPress];
UITapGestureRecognizer *singlePress =
[[UITapGestureRecognizer alloc] initWithTarget:self
action:@selector(handleSinglePress:)];
[exitView addGestureRecognizer:singlePress];
//[longPress release];
[circleView bringSubviewToFront:exitView];
[alertView addSubview:circleView];
[self addSubview:alertView];
}
return self;
}
//The event handling method
- (void)handleLongPress:(UILongPressGestureRecognizer *)recognizer{
//CGPoint location = [recognizer locationInView:[recognizer.view superview]];
if ( recognizer.state == UIGestureRecognizerStateEnded ) {
//[circleView removeFromSuperview];
[self shakeView:recognizer.view];
}
}
- (void)handleSinglePress:(UITapGestureRecognizer *)recognizer{
//CGPoint location = [recognizer locationInView:[recognizer.view superview]];
if ( recognizer.state == UIGestureRecognizerStateEnded ) {
[recognizer.view.superview removeFromSuperview];
}
}
- (void)shakeView:(UIView *)viewToShake
{
CGFloat t = 2.0;
CGAffineTransform translateRight = CGAffineTransformTranslate(CGAffineTransformIdentity, t, 0.0);
CGAffineTransform translateLeft = CGAffineTransformTranslate(CGAffineTransformIdentity, -t, 0.0);
viewToShake.transform = translateLeft;
[UIView animateWithDuration:0.07 delay:0.0 options:UIViewAnimationOptionAutoreverse|UIViewAnimationOptionRepeat animations:^{
[UIView setAnimationRepeatCount:200.0];
viewToShake.transform = translateRight;
} completion:^(BOOL finished) {
if (finished) {
[UIView animateWithDuration:0.05 delay:0.0 options:UIViewAnimationOptionBeginFromCurrentState animations:^{
viewToShake.transform = CGAffineTransformIdentity;
} completion:NULL];
}
}];
}