我正在动态创建 UILabel,然后将它们的标签保存在 NSMutableArray 中。然后我有一种方法可以检测这些 UILabel 上的点击(点击)。基本上,当单击已动态生成的 UILabel 时,我希望将其删除而不删除其他标签。但是,将来我可能想做更多而不是删除。但此刻我觉得我陷入了死胡同,试图找到一种方法来做到这一点。有任何想法吗?
这是我的代码:
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
// set corner radius
coverview.hidden=YES;
labeltextfield.hidden=YES;
textcreate.hidden=YES;
labeltags = [NSMutableArray array];
labeltext = [NSMutableArray array];
}
-(IBAction)removeboard
{
[labeltextfield resignFirstResponder];
}
-(void)showtextcreator {
// Create bg cover
coverview.hidden=NO;
labeltextfield.hidden=NO;
textcreate.hidden=NO;
//Make sure creating screen is always on top
[self.view bringSubviewToFront:coverview];
[self.view bringSubviewToFront:labeltextfield];
[self.view bringSubviewToFront:textcreate];
}
-(void)createtext {
NSInteger obj = [labeltags count] +1 ;
[labeltags addObject:[NSNumber numberWithInteger:0]];
int posx = arc4random() % 300 ;
int posy = arc4random() % 400 ;
int frame = arc4random() % 400 ;
NSString *txt = labeltextfield.text;
// NSString *framename = (@"frame%i",frame);
[labeltext addObject:txt];
[labeltags addObject:[NSNumber numberWithInteger:0]];
CGRect labelframe = CGRectMake( posx, posy, 100, 30);
label = [[UILabel alloc] initWithFrame: labelframe];
[label setText: [NSString stringWithFormat:@"%@", txt]];
[label setTextColor: [UIColor orangeColor]];
label.backgroundColor = [UIColor clearColor];
label.tag=obj;
[self.view addSubview: label];
label.userInteractionEnabled = YES;
UIPanGestureRecognizer *gesture = [[UIPanGestureRecognizer alloc]
initWithTarget:self
action:@selector(labelDragged:)];
[label addGestureRecognizer:gesture];
UITapGestureRecognizer *recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction)];
[label addGestureRecognizer:recognizer];
coverview.hidden=YES;
labeltextfield.hidden=YES;
textcreate.hidden=YES;
}
- (void)labelDragged:(UIPanGestureRecognizer *)gesture
{
label = (UILabel *)gesture.view;
CGPoint translation = [gesture translationInView:label];
// move label
label.center = CGPointMake(label.center.x + translation.x,
label.center.y + translation.y);
// reset translation
[gesture setTranslation:CGPointZero inView:label];
}
- (void)tapAction {
UILabel *labelnew = (UILabel *)[self.view viewWithTag:1];
NSLog(@"Text is %@",labelnew.text);
}