Now, I have sort of asked this question already, but this time it's a little different. Since my last question, I have received several answers and excellent advice, and I did some extensive research as well. I am using xcode, and coding for iOS 6.
My question specifically is how do I keep my button in a temporary "selected" state when pressed? Like I want it to stay pressed through the duration of the sound and then switch back to the default image.
My button is mostly linked up through interface builder, because it's easy and less code to write. I have the sound coded in my button's IBAction to play when pressed and I have the second image that it changes to when pressed, however the Image isn't set in my code it is set in Interface Builder.
I've seen several code that seems like it would work wonders if I knew how to correctly input it. Which leads me to a second part of my question.
Can someone help me set it up?
for example:
[btnClear setBackgroundImage:[UIImage imageNamed:#"blue_button.png"]
forState:UIControlStateHighlighted];
This seems like it would do the trick in my head. I just don't know which variable of mine to replace "btnClear" with and setBackgroundImage isn't showing up as a command.
On my other question I received and answer in the form of a comment that made the most sense but they didn't elaborate, it was:
"you can set image for Selected state of your button, and on touchUpInside set property selected = YES.
So I have the image I want in the selected state, and my button is linked for touchUpInside, but the only "property" or action it has is to play the sound, and because my button's images are set in Interface Builder I'm not really sure how I can set selected = YES without coding a new class which sets up the image.
Now if that's what I have to do, that's fine, but I need some guidance setting that up I am highly familiar with Objective-C it's just I'm new to these default classes in the iOS SDK I'm still getting a hold of things and having to refer to tutorials every now and again.
Here's a link to my other question if it helps:
How do I make a button stay pressed?
Again, I already have everything set up regarding the Image in Interface Builder, I'm just not sure how to fit the selected state option it into my already existing button action.
Thank you!
I think what you may be looking for is a button property:
#property (nonatomic, weak) IBOutlet UIButton *button;
(Or with a more descriptive name!) Hook this up to your button in Interface Builder. Then when you want to switch to the selected image (which you said is already in IB, right?), simply do this:
self.button.selected = YES;
And to turn back to the default image:
self.button.selected = NO;
Related
I have problem when in iOS settings is enabled this setting "Button Shapes"
It causing this underline in application (first picture with enabled setting, second without)
Any idea how to programatically or in storyboard disable it?
I tried attributed text but I get same result :(
I'm newbie in Swift.
Thanks for help!
It's not a problem. You should not make any attempt to counter any accessibility changes set by the user. They are there for a reason.
This is an answer by user4291543 from this question Remove underline on UIButton in iOS 7
[yourBtnHere setBackgroundImage:[[UIImage alloc] init] forState:UIControlStateNormal];
I found this answer works with SWFrameButton
And for all the others saying "Don't Do This", SWFrameButton is a very good example of when you would want to do this. I also think the OP's situation is a perfectly valid scenario as well...
I totally agree with #maddy's comment:
It's not a problem. You should not make any attempt to counter any accessibility changes set by the user. They are there for a reason.
But I did stumble on a way to accomplish the task at hand...
In addition to a UIButton, you'll also need to make a .png file that contains nothing (meaning the entire contents have an opacity of 0%). Go ahead and load that into your xcode project's assets.
Now go ahead and set the Button's Background to that image you just provided. (In my case, I called it clear) This will remove the underline from the button's text. However, now you can't see the boundaries of the button. This can be solved by changing the Background of the button's View. Go ahead and select any color for the View's Background property and now the background of the View visibly defines the button's boundaries. You're able to see this because your clear.png has an opacity of 0%.
see the Attributes inspector for UIButton here.
Rather than trying to defeat the underline by going to make a label perform some action via UITapGestureRecognizer, this allows you to still use a UIButton. Keeping inline with accessibility features to mark buttons for people that want to do that.
You could create a custom button class with a label (with clear color). If you set the text of this label instead it shouldn`t get an underline.
Are you sure you want to do that?
Apple added an accessibility feature to mark buttons for people that want to do that. Apple will probably reject your app because it defeats a system function meant to help the disabled.
I found the solution. All you have to do is set a picture as the background of the button. just pick a picture with the same color as the button you created.
I am new to ios, and trying to change a simple button text from implementation side in an action.
I have tried two of these: while one of them works, the other one doesnt !
self.Btn_Analyse.titleLabel.text = #"Stop Anlaysing"; // didnt work
And...
[self.Btn_Analyse setTitle:#"Deneme" forState:UIControlStateNormal]; //worked
why doesnt the first one work?
PS: I have connected the button as IBOutlet
Why are you telling us what worked?
If it worked then there isn't a problem.
Anyway, the reason the first one didn't work is because a button is not just a label. It has various states and each state can have different properties.
You set the image for the state. You set the title for the state. etc...
Then with different states you can have different properties.
UIButton sets the title on its own, so if you directly change the text in label, button changes it back.
That's because button can have different titles for different states (label can't do that), and sets the appropriate one automatcally.
First of all, sorry for the title and asking this incredibly question but I simply couldn't figure it out. Also, since it is not related to code, I don't have code to show
I am working on an app and using iOS7 and I created a button from IB, set its background image to an image I designed. Connected it with header and set its touch up inside action as an IBAction
Yet, here is my problem. Whenever I click on the button, as an effect the image fades half transparent. I do not want this default attribute. I checked all the states on IB (highlighted, disabled, selected) and couldn't figure it out.
If I create the same button programmatically, only the text color changes, however when I set the background image, image fades (perhaps to indicate the button being pressed). How can I remove this effect?
A bit late but I believe this would solve the problem
in the xib file, set the button's type to Custom.
My button was set to system and when pressed on, it shows transparency and has a little fade in effect. Once I changed it to custom this effect is gone.
This cannot be changed once button is created. only in xib or when the button is first created.
have you tried this one yourButton.adjustsImageWhenHighlighted = NO?
If you set same background-image/background-color for every buttons states in IB (highlight, disable, selected) you will not get any fading in UIBUtton when you press it. You can set text color for every states also. If needed you can set different colors for every state and check the press action.
Hope the answered you expect. Thanks
Storyboard Solution
1:set button type to custom
2:uncheck "Highlighted adjusts Image"
If you want fading in & out effect your UIButton Type Should be a system, not custom.
Now I know this question may sound like a duplicate, but I doubt it seeing as I've researched and none of the possible duplicates answer my question. If it is a duplicate and it's been answered by all means show me the way!
But my question doesn't deal so much with a button changing an image, more so the button is the image.
So my button is an image and when pressed a sound plays and then the image changes until the sound is done. My problem is I can't get the image to change.
Now I have tried this method thinking that I could press my button and my new image would cover up my button until the sound was done:
UIImage *dolDerp = [UIImage imageNamed:#"dolphin2.png"];
[imageview setImage:dolDerp];
I have an outlet set up and it's connected to an image view object and then the action is connected to the button, so in theory when the button is pressed the new image should take over the screen. Now obviously the code needs to be tweaked so the button would go away after a few seconds when the sound is played, but my problem is I can't even get the button to display. I also would prefer to just have the button objects image change if possible?
If anyone could offer some help it's much appreciated!
the best thing is in Interface Builder assign the two images to the button Normal/Selected states.
in code just use this line:
myButton.selected = YES;
//or
myButton.selected = NO;
What #Mahmoud Fayez suggested is good. In code, the proper way to set a buttons image/background image is [button setImage:image forState:UIControlStateNormal] or the similar method for setBackgroundImage
If you are using IB though, it is indeed best to set the different images for different states in IB, then change the buttons state (which will then change the buttons image) in code.
I'm trying to build a simple peg jumping game (see: http://cl.ly/2x0v1V3z351t0j3d3y0L).
My plan is to make each "peg" a UIButton and toggle the UIButton states for the different images that need to be displayed at different times during the game. Using the default states for UIButton gets me pretty far but I need to add one extra state beyond the default 4.
How would I go about doing this? I figure I will need to sub class UIButton to create a custom UIButton object but this is where I get stuck. I can't find any resources on adding new button states. Is this something that is possible?
This link below was a major help to me implementing my own custom button. I basically took that guy's code and made it ARC compatible, but the basic principle in what he's done really works great!
Custom Button States
Subclass UIBUtton and add a custom state variable, then use the setter to change the image that is shown.