I have scoured the documentation and google for a solution but none was found.
Simply: I want to pass data to a function, when a button is pressed.
Issue: The buttons are dynamically created, so the data must be presented when the button is built.
The code looks like this;
myButton = widget.newButton({
x = width * 0.875,
y = height * heightChange,
width = width * 0.18,
height = height * 0.09,
defaultFile = "Assets/Images/button_up.png",
overFile = "Assets/Images/button_down.png",
onEvent = func_myFunction
})
But I want to do something like;
onEvent = func_myFunction("My Data")
or
onEvent = func_myFunction, myData
neither of which work. Any ideas?
It's simple you just need to add an eventlistener to the end of your code so when it's clicked your data would execute.
myButton = widget.newButton({
x = width * 0.875,
y = height * heightChange,
width = width * 0.18,
height = height * 0.09,
defaultFile = "Assets/Images/button_up.png",
overFile = "Assets/Images/button_down.png",
onEvent = func_myFunction
})
myButton:addEventListener("touch",onEvent);
I hope this fixes your problem.
Related
i have 3 types of string labels, "loading...", "loading, please wait" and "it's taking more than we expected, sorry...". I want to adjust the height of the IULabel and center in the frame. I'm using this:
labelTitle = new UILabel (new CGRect (
frame.Width / 4,
frame.Height / 2 + Dimensions.margin_small,
frame.Width/2,
40
));
labelTitle.StyleTitle ();
labelTitle.TextAlignment = UITextAlignment.Center;
labelTitle.LineBreakMode = UILineBreakMode.WordWrap;
labelTitle.Lines = 0;
But don't know how to resize the height
try this.
labelTitle = new UILabel ();
labelTitle.StyleTitle ();
labelTitle.TextAlignment = UITextAlignment.Center;
labelTitle.LineBreakMode = UILineBreakMode.WordWrap;
labelTitle.Lines = 0;
And now give the label center point.
I'm trying to make some UIImageViews in Xcode that fill the screen based on different conditions. For example, I might have a 3x3 square of images that have to fill the screen, or a 4x4 square that must fill the screen, based on different initial conditions. Every time I try to accomplish this, the ImageViews just end up being the same size for both conditions. I've tried many different solutions but the one I'm currently trying is:
if fieldDimensions == 3 {
let spacing = screenWidth / 16
let boxsize = screenWidth / 4
let xadjust = spacing / 2 //Value to help align view
let interval = spacing + boxsize
Button1Image.translatesAutoresizingMaskIntoConstraints = false
button1height.constant = boxsize
button1width.constant = boxsize
button2height.constant = boxsize
button2width.constant = boxsize
}
else if fieldDimensions == 4 {
let spacing = screenWidth / 20
let boxsize = screenWidth * 3/16
let interval = spacing + boxsize
button1height.constant = boxsize
button1width.constant = boxsize
button2height.constant = boxsize
button2width.constant = box size
All of the button heights and widths are linked to the height and width constraints in the storyboard (I just control-dragged them). Any help would be really appreciated, I've been working on this problem for almost a week now, thanks!!
I am a newbie to ios development and am fairly confused about how to position a UI Text field in swift. I am working with sprite kit and am creating a gaem that involves inputing a quadratic equation. I want to position my text fields along side my labels so it say y=_x^2+x+. When I run the following code, my text fields are in the top left corner! What should I do?
override func didMoveToView(view: SKView) {
self.backgroundColor = SKColor.blueColor()
//create y = label
let yLabel = SKLabelNode(fontNamed:"Note-Worthy-Bold")
yLabel.text = "Y = ";
yLabel.fontColor = SKColor.redColor()
yLabel.fontSize = 30;
yLabel.position = CGPoint(x:CGRectGetMidX(self.frame)-300, y:CGRectGetMidY(self.frame)+100);
self.addChild(yLabel)
//create text fielld for coefiecent of x^2 variable
var xSqrCoefInput = UITextField(frame:CGRectMake(10, 10, 30, 10))
xSqrCoefInput.backgroundColor = UIColor.orangeColor()
self.view?.addSubview(xSqrCoefInput)
//create x^2 Label
let xSqrLabel = SKLabelNode(fontNamed:"Note-Worthy-Bold")
xSqrLabel.text = "x^2+";
xSqrLabel.fontColor = SKColor.redColor()
xSqrLabel.fontSize = 30;
xSqrLabel.position = CGPoint(x:CGRectGetMidX(self.frame)-150, y:CGRectGetMidY(self.frame)+100);
self.addChild(xSqrLabel)
//create text fielld for coefiecent of x variable
var xCoefInput = UITextField(frame:CGRectMake(10, 10, 30, 10))
self.view?.addSubview(xCoefInput)
xCoefInput.backgroundColor = UIColor.orangeColor()
//create x label
let xLabel = SKLabelNode(fontNamed:"Note-Worthy-Bold")
xLabel.text = "x+";
xLabel.fontColor = SKColor.redColor()
xLabel.fontSize = 30;
xLabel.position = CGPoint(x:CGRectGetMidX(self.frame)-0, y:CGRectGetMidY(self.frame)+100);
self.addChild(xLabel)
//create text fielld for constant
var constantInput = UITextField(frame:CGRectMake(10, 10, 30, 10))
self.view?.addSubview(constantInput)
constantInput.backgroundColor = UIColor.orangeColor()
}
CGRectMake takes in 4 parameters.
CGRectMake(x position, y position, width, height)
The default starting position is the top-left corner. Your current textfield position is (10,10), so basically you just have to change the x and y positions for all the textfields.
var xSqrCoefInput = UITextField(frame:CGRectMake(10, 10, 30, 10))
If you wish to place the textfield next to the labels, it would be best to get the position of the labels and set the position from there.
I am trying to move a display object that is hiding over the right side of the screen, into the scene. It works wonderfully with images (i.e. the background), but not with texts (the coords seem correct from debugging them with print(), but they never display, I already tried the obj:toFront).
I thought that they may work inside display objects, so I put everything in a display Object: Nothing. Just the text? Neither. Anyone knows why/how to override this?
function tscreen:init()
local textGroup = display.newGroup()
local menuBackground = self:getBtn("src/bgMenu.png")
menuBackground.isVisible = false
menuBackground.anchorX = 0.5
menuBackground.anchorY = 0.5
self.menuBackground = menuBackground
local optionsText = {
parent = textGroup,
text = "Hello World",
x = centerX,
y = centerY,
width = 128,
font = native.systemFontBold,
fontSize = 14,
align = "center"
}
local workText = display.newText( optionsText )
workText:setFillColor( 1, 0, 0 )
setPos(textGroup, W, 0)
--setPos() is a custom function that assigns x and y coords
textGroup.isVisible = false
self.textGroup = textGroup
end
function tscreen:show()
local menuBackground = self.menuBackground
local textGroup = self.textGroup
local inTime = 1200
setPos(menuBackground, 2*W + centerX, centerY)
menuBackground.isVisible = true
setPos(textGroup, W, 0)
textGroup.isVisible = true
self:cancelTween(menuBackground)
self:cancelTween(textGroup)
menuBackground.tween = transition.to(menuBackground, {time = inTime, transition = easing.outExpo, x = centerX,
onComplete = function()
tscreen:cancelTween(menuBackground)
end
})
textGroup.tween = transition.to(textGroup, {time = inTime, transition = easing.outExpo, x = 0,
onComplete = function()
tscreen:cancelTween(textGroup)
print(getPos(textGroup), textGroup.width, textGroup.height)
end
})
end
I have the starters edition of Corona, so I don't have the recently implemented Composer API.
Maybe this isn't the most appropriate site to post this query since there already is a Corona SDK forum, but I'm trying anyway.
I'm not seeing anything wrong, but a group should not be necessary. Verify that the text can be seen ever: in the init(), do
local optionsText = {
text = "Hello World",
x = 0,
y = 100,
}
local workText = display.newText( optionsText )
workText:setFillColor( 1, 1, 1 )
If you can't see the text then something else is going on, maybe your init() is not being called or such. Once you see it, change the parameters to what you want (fill color etc), and test. If still works, add a transition, right after, in the init():
local easeXto100 = {
time = 2000,
transition = easing.outExpo,
x = 100,
onComplete = function() print('did you see text move from x=0 to 100?') end
}
transition.to(workText, easeXto100)
If you see it move, then move the relevant parts of code to your show(), if now it disappears this will give you clue.
I created a scroll view in corona sdk,but i have some problem with it i need it only to scroll horizontally. Any Help?
local widget = require("widget")
local rect1 = display.newRect(20,100,150,100)
local rect2 = display.newRect(200,100,150,100)
local rect3 = display.newRect(380,100,150,100)
local rect4 = display.newRect(580,100,150,100)
local rect5 = display.newRect(780,100,150,100)
local scrollView = widget.newScrollView{ left = 0, width = 0, height = 200, }
scrollView:insert(rect1);
scrollView:insert(rect2);
scrollView:insert(rect3);
scrollView:insert(rect4);
scrollView:insert(rect5);
According to Corona SDK API, you can do the following :
scrollView.verticalScrollDisabled = true
local scrollView = widget.newScrollView{ left = 0, width = 0, height = 200, verticalScrollDisabled = true,}