I want to have a button that says "WARN" and when the user pushes the button a pin will drop down on his location. But I can't figure out how to do that. It must be possible to halve multiple pins at the map, so the last annotation dropped doesn't diseppear when a new user presses the "WARN" button. Can somebody help me with this code please?
You should check out this example from Apple's documentation:
http://developer.apple.com/library/ios/#samplecode/MapCallouts/Introduction/Intro.html#//apple_ref/doc/uid/DTS40009746
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I'm trying to make a Cocoa app with buttons that run simple command line scripts.
I can't seem to figure out how to add the action to my button.
I've read some docs that suggest holding down option and dragging the button into controller code but I think they are out of date. Can someone suggest how to get there from this screenshot?
You need to first select your button, then hold the control ⌃ button on your keyboard and then drag that across to your view controller. That will then give you the option of what to name your method etc.
Actually I had the same problem and the root cause was just the drag method. From the descriptions I had assumed that I need to press CTL and then drag while having the left mouse button pressed. This did not work at all (in my environment). Then I noticed that "it works" with the right mouse button. But the result was not correct. (E.g. I could not get "Action"). Finally I found: I have to use the right mouse button only for dragging without holding CTL. Then I got the correct result.
I was wondering if there is a possibility to fire the tapOnCalloutAccessoryControl method for a marker in code? For instance, I have list of all the markers, and when a user clicks a marker in the list, I zoom to that location, but I would love to get the callout to popup. Is this possible? Thank you.
Getting the callout to pop is different from the accessory control. The latter is the (typically chevron-image) control in the callout once it is popped up, the "go to more detail" button, basically.
To get a callout to popup, check out -[RMMapView selectAnnotation:] and friends.
I want to create a 4 character custom password entry like the iPhone lock screen page. It's going to have a custom designed keyboard pinpad, but thats not the question. I have 4 boxes for the entry of the pin, and each box is separated and has its own custom design. I currently have a clear UITextView on top of each box. However, I'm not really sure how to link all these together so that when I enter a number in the first box, it automatically advances to the next box so I can type the next number. After the last number has been entered, it should automatically check to see if the password is correct and if so do some action. What is the best way to do this?
When implementing UITextFieldDelegate you should check on textField:shouldChangeCharactersInRange:replacementString:
and you can move keyboard focus to next UITextField via BecomeFirstResponder documentation
So on last UITextField you will hide keyboard and disable all UITextboxes automatically, but If I were you, I would prefer to provide button to start checking pin (to let user correct pin if mistyped)
I am having download icon on my page i want that when the user takes his finger over the button a tooltip should show as showing download in text.
is there any option in iphone to show a tooltip???
Dan is absolutely right on how to do it but I'd answer you should rethink your design to not need the tooltip at all.
There's a reason that there isn't one by default - what if the user presses down on the button to see what it does, reads the tooltip and realises that's not what they want. They then have to be very careful not to let go while still over the button or it will press and do the wrong thing. (And most users don't know that they can press down over a button, move their finger off it and release it to cancel the press.)
You should rethink your design to make it obvious what the buttons do without the user having to interact with them first.
However, if you definitely still want a tooltip, Dan's method is fine.
Nothing built-in, no. If you think about it, generally a tooltip appears when you mouse over the target item. There's no "mousing over" with a touch interface.
You can definitely roll your own, though. Start by placing a view containing your tooltip contents exactly where you want it with an alpha of 0%. Make a custom button with no content that outlines your download icon, and hook its "touch down inside" action to a method that animates the tooltip view to an alpha of 100%. Hook your button's "touch up inside" , "touch down outside" and "touch up outside" actions (and maybe some others--you might want to experiment with that) to a method that animates the tooltip view back to an alpha of 0%.
There isn't native support for this in iOS. But you can create your own.
I ended up creating my custom tooltip/popover class.
Can be initalised with any content view and dynamically adjusts it's frame.
Hope it helps.
https://github.com/akeara/AKETooltip
i would like to create a UIButton it will zoom in when mouse over it,can anyone tell me which event can do this
There is no mouse, only touches. How can you hover over a button without tapping it on a touch based interface? I dont think it works the way you think it does.
Hop into interface builder. Drop in a button and look in the attribute window.
You'll see the section that has Title: Image: Background. If you click on the drop down that says 'ALL', you can select several button states and set them accordingly. Use the highlighted state for when the user presses down on the button.
This should get you to understand how it works. You can dig into the docs to find out how to do it programaticaly from there.
Hover on the iPhone is a touch. Unless you're tracking where the finger is and you want objects to react when you enter their bounds. But the highlighted state should get you there.