复制UIView

Question

I can't figure out how could I duplicate UIView with its contents. Or is it even possible?

I have made and UIView with a label and a button inside a .xib file. Now I wish to copy this view n times only with different label text.

I'm trying to do this like this, but such way I only get the last object shown. _view1 is IBOutlet just like _view1Label .

    NSMutableArray *Info = [[NSMutableArray alloc]initWithCapacity:number.intValue];
    for(int i = 0; i != number.intValue; i++)
    {
        NSString *number = [NSString stringWithFormat:@"Zona%i ",[[NSUserDefaults standardUserDefaults] stringForKey:@"ObjectNumber"].intValue];
        NSString *zona = [NSString stringWithFormat:@"%@%i",number, i+1];
        NSString *parinkta = [[NSUserDefaults standardUserDefaults] stringForKey:zona];
        _view1Label.text = parinkta;
        _view1.hidden = false;
        CGRect newrect = CGRectMake(_view1.frame.origin.x, _view1.frame.origin.y + (80 * i), _view1.frame.size.width, _view1.frame.size.height);
        _view1.frame = newrect;
        [Info addObject:_view1];
    }
    for(int i = 0; i != number.intValue; i++)
    {
        UIView *add = [Info objectAtIndex:i];
        [self.view addSubview:add];
    }

I guess you'll get the idea what I am trying to do, maybe my idea of doing this is totaly wrong, so could anyone help me get on the path on this ?

Answer 1

Load the view multiple times from the nib, adjusting the label contents on each copy you load. This is much easier, shorter, less prone to error than trying to copy the UIView contents in-memory which you're trying to do.

Here's an example of using UINib to access the nib contents:

 UINib *nib = [UINib nibWithNibName:@"nibName" bundle:nil];
 NSArray *nibContents = [nib instantiateWithOwner:nil options:nil];

 // Now nibContents contains the top level items from the nib.
 // So a solitary top level UIView will be accessible
 // as [nibContents objectAtIndex:0]

 UIView *view = (UIView *)[nibContents objectAtIndex:0];

 // assumes you've set the tag of your label to '1' in interface builder
 UILabel *label = (UILabel *)[view viewWithTag:1];
 label.text = @"My new text";

So just repeat the above code for each nib instance you want.

Answer 2

如果要显示n视图，则必须创建n次视图，在第一个for循环中，不能将单个视图放置在多个位置

Answer 3

If you are created the first view through code then you can use the following method.

Change your for loop like:

for(int i = 0; i != number.intValue; i++)
    {
        NSString *number = [NSString stringWithFormat:@"Zona%i ",[[NSUserDefaults standardUserDefaults] stringForKey:@"ObjectNumber"].intValue];
        NSString *zona = [NSString stringWithFormat:@"%@%i",number, i+1];
        NSString *parinkta = [[NSUserDefaults standardUserDefaults] stringForKey:zona];
        UIView *tempView = [[UIView alloc] init];
        UILabel *tempLabel = [[UILabel alloc] init];
        tempLabel.frame = _view1Label.frame;
        tempLabel.text = _view1Label.text;
        [tempView addSubview: tempLabel];
        tempView.frame = _view1.frame;
        _view1Label.text = parinkta;
        _view1.hidden = false;
        CGRect newrect = CGRectMake(_view1.frame.origin.x, _view1.frame.origin.y + (80 * i), _view1.frame.size.width, _view1.frame.size.height);
        _view1.frame = newrect;
        [Info addObject:tempView];
    }