UIImageView响应点击事件
2014-05-31 16:49
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方法1:
UIImageView *testImageView = [[UIImageView alloc] init......................
testImageView.userInteractionEnabled = YES;
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[testImageViewaddGestureRecognizer:singleTap];
[singleTap release];
- (void)handleSingleTap:(UIGestureRecognizer *)gestureRecognizer {
//do some method.....
}
方法2:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [[event allTouches] anyObject];
if ([touch view] != UIImageView)
{
//do some method.....
}
}
只要在上面的方法中加入处理事件就OK了。
======================
获取点击事件来源
1.绑定点击事件
[BTBook setUserInteractionEnabled:YES];
[BTBook setTag:1000];
UITapGestureRecognizer *singleTap3 = [[UITapGestureRecognizer alloc] initWithTarget:selfaction:@selector(GoThisPic:)];
[BTBook addGestureRecognizer:singleTap3];
[singleTap3 release];
2,获得事件源
-(void)GoThisPic:(UIGestureRecognizer *)gestureRecognizer
{
UIImageView *view = [gestureRecognizer view];
int tagvalue = view.tag;
}
当有多个同类型点击事件时,可以利用事件源得到对应的view。
例如:
int photosCount = [tphotosList count];
for (int i=0; i<photosCount; i++) {
NSString *photoUrl = [tphotosList objectAtIndex:i];
//66.67 * 4
int linenum = i / 4;
int rownum = i % 4;
EGOImageView *egoivVgirlPhoto = [[EGOImageView alloc] initWithPlaceholderImage:[UIImage imageNamed:@"loading.png"]];
[egoivVgirlPhoto setTag:i];
[egoivVgirlPhoto setFrame:CGRectMake(10+66.67*rownum, 30+10+66.67*linenum, 65, 65)];
[egoivVgirlPhoto setImageURL:[NSURL URLWithString:photoUrl]];
[egoivVgirlPhoto setUserInteractionEnabled:YES];
UITapGestureRecognizer *touchVgirlPhotoGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(touchPhotoAction:)];
[egoivVgirlPhoto addGestureRecognizer:touchVgirlPhotoGesture];
[touchVgirlPhotoGesture release];
[self.contentView addSubview:egoivVgirlPhoto];
[egoivVgirlPhoto release];
}
-(void)touchPhotoAction:(UIGestureRecognizer *)gestureRecognizer{
UIView *egoivPhotoView = [gestureRecognizer view];
int tPhotoIndex = [egoivPhotoView tag];
NSLog(@"tPhotoIndex: %d", tPhotoIndex);
if ([delegate respondsToSelector:@selector(doTouchPhoto:)]) {
[delegate doTouchPhoto:tPhotoIndex];
}
}
UIImageView *testImageView = [[UIImageView alloc] init......................
testImageView.userInteractionEnabled = YES;
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[testImageViewaddGestureRecognizer:singleTap];
[singleTap release];
- (void)handleSingleTap:(UIGestureRecognizer *)gestureRecognizer {
//do some method.....
}
方法2:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [[event allTouches] anyObject];
if ([touch view] != UIImageView)
{
//do some method.....
}
}
只要在上面的方法中加入处理事件就OK了。
======================
获取点击事件来源
1.绑定点击事件
[BTBook setUserInteractionEnabled:YES];
[BTBook setTag:1000];
UITapGestureRecognizer *singleTap3 = [[UITapGestureRecognizer alloc] initWithTarget:selfaction:@selector(GoThisPic:)];
[BTBook addGestureRecognizer:singleTap3];
[singleTap3 release];
2,获得事件源
-(void)GoThisPic:(UIGestureRecognizer *)gestureRecognizer
{
UIImageView *view = [gestureRecognizer view];
int tagvalue = view.tag;
}
当有多个同类型点击事件时,可以利用事件源得到对应的view。
例如:
int photosCount = [tphotosList count];
for (int i=0; i<photosCount; i++) {
NSString *photoUrl = [tphotosList objectAtIndex:i];
//66.67 * 4
int linenum = i / 4;
int rownum = i % 4;
EGOImageView *egoivVgirlPhoto = [[EGOImageView alloc] initWithPlaceholderImage:[UIImage imageNamed:@"loading.png"]];
[egoivVgirlPhoto setTag:i];
[egoivVgirlPhoto setFrame:CGRectMake(10+66.67*rownum, 30+10+66.67*linenum, 65, 65)];
[egoivVgirlPhoto setImageURL:[NSURL URLWithString:photoUrl]];
[egoivVgirlPhoto setUserInteractionEnabled:YES];
UITapGestureRecognizer *touchVgirlPhotoGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(touchPhotoAction:)];
[egoivVgirlPhoto addGestureRecognizer:touchVgirlPhotoGesture];
[touchVgirlPhotoGesture release];
[self.contentView addSubview:egoivVgirlPhoto];
[egoivVgirlPhoto release];
}
-(void)touchPhotoAction:(UIGestureRecognizer *)gestureRecognizer{
UIView *egoivPhotoView = [gestureRecognizer view];
int tPhotoIndex = [egoivPhotoView tag];
NSLog(@"tPhotoIndex: %d", tPhotoIndex);
if ([delegate respondsToSelector:@selector(doTouchPhoto:)]) {
[delegate doTouchPhoto:tPhotoIndex];
}
}
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