ibaction

Should I put IBActions in the header file or not?

北城以北 提交于 2019-12-01 23:15:41
问题 Given that iOS SDK 6.1 is used in Xcode 4.6.3 , does it make a difference to declare the method signature of IBAction in a header file or not? Without putting the method declaration in the header file, the app is still able to compile and run without problems. However, the method cannot be seen in a storyboard. Are there any hidden issues of not declaring the method in the header file? Is there a memory consumption difference? 回答1: The entire point of an IBAction method is to be a public

How to connect outlets and actions in Swift / MacOS programaticly

别等时光非礼了梦想. 提交于 2019-12-01 20:31:31
I have a simple example. I connected the left button1 and label1 with ctrl-draging it to the contollerclass. How can I do the same for the right button2 label2 programaticly (without ctrl-draging) That´s my code: class ViewController: NSViewController { @IBOutlet weak var label1: NSTextField! //connected with ctrl-drag @IBOutlet weak var button1: NSButton! //connected with ctrl-drag @IBOutlet weak var label2: NSTextField! //not yet connected @IBOutlet weak var button2: NSButton! //not yet connected @IBAction func button1Pressed(_ sender: Any) //connected with ctrl-drag { label1.stringValue =

Should I put IBActions in the header file or not?

懵懂的女人 提交于 2019-12-01 20:28:11
Given that iOS SDK 6.1 is used in Xcode 4.6.3 , does it make a difference to declare the method signature of IBAction in a header file or not? Without putting the method declaration in the header file, the app is still able to compile and run without problems. However, the method cannot be seen in a storyboard. Are there any hidden issues of not declaring the method in the header file? Is there a memory consumption difference? The entire point of an IBAction method is to be a public connection point in Interface Builder (using Storyboards or not). The word IBAction itself is #define d as void

How do I name and link an IBAction button created in a storyboard

江枫思渺然 提交于 2019-12-01 19:50:39
I named the button "Reminders" Apparently it was supposed to link itself to the files but nothing showed up in mine. I have created a button in the storyboard but I don't know how to link it to a .m or .h file. I'm really new to this and still learning. Am I supposed to change the settings of the button and what code do I write in the files to make it work? Thanks a heap! Here is how you add an IBOutlet to a header or a .m file: Open your storyboard editor on one window. Position it in such a way that the button is visible Open the header or the .m file in another window. Position the text in

UIButton not responding after animation

我怕爱的太早我们不能终老 提交于 2019-12-01 03:12:57
问题 I would prefer first download the project from below link and then continue with question (only 36kb) Download Link At start what I have is like below. When I click My Office button, I am calling action actionSeenButton which will print NSLog(@"actionSeenButton"); - (IBAction)actionSeenButton:(id)sender { NSLog(@"actionSeenButton"); } This works perfect. When I click, Show hidden button, I am sliding view by 100 and showing the image and buttons that I have at the top, as shown in below image

Using IBAction Buttons to Zoom MapView

a 夏天 提交于 2019-11-30 13:51:20
I have an issue. My current location is displayed and centered in a map view however the map region doesn't get zoomed in to. I tried taking Rob's advice by taking span and region out of the didUpdateToLocation method but I must not have implemented it right. I don't think it's recognizing my call to setRegion in viewDidLoad and my buttons aren't being recognized. Please check my code below and point out the mistake(s). My goal is to be able to zoom in and out of my location using the IBAction buttons. .h - (IBAction)zoomIn:(id)sender; - (IBAction)zoomOut:(id)sender; .m in viewDidLoad double

Use IBAction from UIButton inside custom cell in main view controller

随声附和 提交于 2019-11-30 13:24:22
问题 I have created a custom cell with its own .m, .h and .xib file. In the cell, I have a UIButton that I added to the xib in IB. I can receive the IBAction from the UIButton in this custom cell's .m, but really, I'd like to be forwarding that button press to the main view .m that is hosting the table (and so custom cell) and use an action there. I've spent the last 4 hours attempting various ways of doing this - should I be using NSNotificationCenter? (I've tried Notifications lots but can't get

Connect object in .xib to existing IBAction

谁都会走 提交于 2019-11-30 09:02:40
问题 I am quite new to iOS Programming. This is my question: I want to connect a new object to an existing IBAction method. For example, I want to buttons to perform the same function. But when I "control-drag" it, it will always ask me to insert as a new method. How can I add to the existing one instead of creating a new one? Snapshot in XCode 回答1: In your xib editor, you can see the File's Owner . Just right click the button to see the black popup as shown in the image below. Then drag the empty

Use IBAction from UIButton inside custom cell in main view controller

对着背影说爱祢 提交于 2019-11-30 07:26:21
I have created a custom cell with its own .m, .h and .xib file. In the cell, I have a UIButton that I added to the xib in IB. I can receive the IBAction from the UIButton in this custom cell's .m, but really, I'd like to be forwarding that button press to the main view .m that is hosting the table (and so custom cell) and use an action there. I've spent the last 4 hours attempting various ways of doing this - should I be using NSNotificationCenter? (I've tried Notifications lots but can't get it to work and not sure if i should be persevering) Moonkid You need to use delegate in .h file of

Connect object in .xib to existing IBAction

烈酒焚心 提交于 2019-11-29 11:18:51
I am quite new to iOS Programming. This is my question: I want to connect a new object to an existing IBAction method. For example, I want to buttons to perform the same function. But when I "control-drag" it, it will always ask me to insert as a new method. How can I add to the existing one instead of creating a new one? Snapshot in XCode In your xib editor, you can see the File's Owner . Just right click the button to see the black popup as shown in the image below. Then drag the empty dot to the File's Owner tab and release the drag action. You'll see a popup of all existing IBAction s.