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PORemove Buttons Dynamically with an Array
 

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    <p>I have a view that has labels being dynamically added by the user. If the use would like to edit any of the labels, they press a button and all the labels get highlighted with a delete button and move button. (Editing is another bridge I’ll cross later).</p> <p>My issue is: What is the best way to turn the buttons on and off? I have a method that turns the buttons on… but I am at a loss as to how I turn them off when done editing. Do I need to tag my buttons and then just ‘hide them’? Or do I just remove them all totally? How do I parse all the buttons that are turned on then, turn them off. Do I need to put them in an array as well? The labels are tagged with unique numbers so I know which label is which. </p> <p>Any thoughts? Guidance? If I am doing it all wrong please tell me. </p> <p>Here is a couple methods I have: </p> <pre><code>- (void) showEditableText { // Parse the array of labels if(textArray.count &gt; 0){ for(UILabel *label in textArray){ //Add Delete Button UIImage * delButtonImage = [UIImage imageNamed:@"GUI_Delete.png"]; UIButton * delThisButton = [[UIButton alloc] initWithFrame:CGRectMake(label.frame.origin.x - delButtonImage.size.width, label.frame.origin.y - delButtonImage.size.height, delButtonImage.size.width, delButtonImage.size.height)]; [delThisButton setBackgroundImage:delButtonImage forState:UIControlStateNormal]; [delThisButton addTarget:self action:@selector(deleteThisLabel:) forControlEvents:UIControlEventTouchUpInside]; [self addSubview:delThisButton]; //Add a move button UIImage * moveButtonImage = [UIImage imageNamed:@"GUI_Move.png"]; UIButton * moveThisButton = [[UIButton alloc] initWithFrame:CGRectMake((label.frame.origin.x + label.frame.size.width + moveButtonImage.size.width), label.frame.origin.y - moveButtonImage.size.height, moveButtonImage.size.width, moveButtonImage.size.height)]; [moveThisButton setBackgroundImage:moveButtonImage forState:UIControlStateNormal]; [moveThisButton addTarget:self action:@selector(moveThisLabel:) forControlEvents:UIControlEventTouchUpInside]; [self addSubview:moveThisButton]; //Make the text highlighed label.highlighted = YES; label.backgroundColor = [UIColor colorWithRed:203/255.0f green:230/255.0f blue:239/255.0f alpha:1]; label.highlightedTextColor = [UIColor redColor]; } } } - (void) doneEditingText { if(textArray.count &gt; 0){ for(UILabel *label in textArray){ //THIS IS WHERE I AM STUCK? WHAT DO I DO? label.highlighted = NO; label.backgroundColor = [UIColor clearColor]; } } } </code></pre>
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    1. COYou can create and delete buttons as you need them, or you can hide/unhide them. Depends mostly on whether a fixed set of them will work (hide/unhide) or whether the number (and maybe style) is dynamic (create/delete). All buttons can be pointed to the same touch event methods (use the button @ call parm to tell them apart). Put the button @s in an array to make it easier to sort them out.
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