I want to put a custom button as right navigation bar button item. Here is the code:
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setImage:[UIImage imageNamed:#"my.png"] forState:UIControlStateNormal];
[button addTarget:self action:#selector(filterResult) forControlEvents:UIControlEventTouchUpInside];
[button setFrame:CGRectMake(0, 0, 50, 50)];
self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:button] autorelease];
The problem is that I can see only the image and not the button around it like it comes for UIBarButtonSystemItemAdd or other types.
What should I do?
[button setImage:[UIImage imageNamed:#"my.png"] forState:UIControlStateNormal];
replaces the entire image for the specified state. You have to draw the full own image and not only the icon on it (or whatever you want).
Related
I made a custom button with a custom image. Then I tried to set the title of it, but it didn't work. Here is the button's code
- (void)viewDidLoad
{
UIImage *backButtonImage = [UIImage imageNamed:#"button.png"];
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
[backButton setImage:backButtonImage forState:UIControlStateNormal];
[backButton setTitleColor:[UIColor colorWithRed:0.49 green:0 blue:0 alpha:1] forState:UIControlStateNormal];
[backButton setTitle:#"DONE" forState:UIControlStateNormal];
backButton.frame = CGRectMake(0, 0, backButtonImage.size.width, backButtonImage.size.height);
[backButton addTarget:self action:#selector(goBackOne) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
self.navigationItem.hidesBackButton = YES;//hide original back button
}
But it still looks like this
You should use the backgroundImage property if you want the image to appear underneath the text:
[backButton setBackgroundImage:backButtonImage forState:UIControlStateNormal];
If you use the image property, the image will push the text out of the way (it works when you want to show a small image and text side by side)
Try backButton.text = #"DONE".
Edit: Try changing this line:
[backButton setTitle:#"DONE" forState:UIControlStateNormal];
to
[backButton setText:#"DONE" forState:UIControlStateNormal];
I have made at least 10 buttons for my navigation bar, but it never seems to work right.
The rounded edges get pixelated. I cant have that in an app, so can anyone tell me how to make a good icon that looks like an apple one? Also what is the proper size? The code in the app for the button is
UIButton *backbtn = [UIButton buttonWithType:UIButtonTypeCustom];
backbtn.frame = CGRectMake(0, 0, 55, 30);
[backbtn setBackgroundImage:[UIImage imageNamed:#"button.png"] forState:UIControlStateNormal];
[backbtn addTarget:self action:#selector(goBackOne) forControlEvents:UIControlEventTouchUpInside]; forState:UIControlStateNormal ];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backbtn];//set new button
self.navigationItem.hidesBackButton = YES;//hide original back button
Try this code:
UIImage *backButtonImage = [UIImage imageNamed:#"backButton.png"];
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
[backButton setImage:backButtonImage forState:UIControlStateNormal];
backButton.frame = CGRectMake(0, 0, backButtonImage.size.width, backButtonImage.size.height);
[backButton addTarget:self action:#selector(back) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *customBackBarItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
self.navigationItem.leftBarButtonItem = customBackBarItem;
and, the back method:
-(void)back {
[self.navigationController popViewControllerAnimated:YES];
}
The code above just set the image for normal state. You can also set highlighted state for a better appearance. Add some codes Like:
UIImage *backButtonImageHighlighted = [UIImage imageNamed:#"backButtonHighlighted.png"];
[backButton setImage:backButtonImageHighlighted forState:UIControlStateHighlighted];
I have to create a UIBarButton on the having a globe and a text "Map" written on it.
What I have done:
I have added a UIButton with the image of the globe as backgroundImage.
Set the text on the button.
Then created a UIBarButton initWithCustomView from the above button.
Given it style as Bordered.
Result:
Now what i got is a plane button with the globe image stretched on that which is overlapping with the Text in it.
I have searched for this a lot but i only found links which show the image in background and the text above the button. Nothing like the image and text together.
Can anyone help me in creating it the way it is shown in the attachment.
Try this :
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setTitle:#"Title" forState:UIControlStateNormal];
UIImage *butImage_on = [[UIImage imageNamed:#"closebutton_on.png"] stretchableImageWithLeftCapWidth:10 topCapHeight:10];
UIImage *butImage_over = [[UIImage imageNamed:#"closebutton_over.png"] stretchableImageWithLeftCapWidth:10 topCapHeight:10];
[button setBackgroundImage:butImage_on forState:UIControlStateNormal];
[button setBackgroundImage:butImage_over forState:UIControlStateHighlighted];
[button setImage:[UIImage imageNamed:#"globe.png"] forState:UIControlStateNormal];
[button addTarget:self action:#selector(closeProfilePage) forControlEvents:UIControlEventTouchUpInside];
button.frame = CGRectMake(0, 0, 61, 30);
[button setTitleEdgeInsets:UIEdgeInsetsMake(0, -15, 0, 2)];
[button setImageEdgeInsets:UIEdgeInsetsMake(30,
20,
0,
20)];
UIBarButtonItem *backButton = [[[UIBarButtonItem alloc] initWithCustomView:button] autorelease];
self.navigationItem.leftBarButtonItem = backButton;
Note: you need to manage insets according to your requirements.
Use image with #2x. if your graphices are high resolution. according to 640 X 960 px;:-
UIView *parentView1 = [[UIView alloc] initWithFrame:CGRectMake(0, 6,51, 44)];
UIButton *btnBack = [[UIButton alloc] initWithFrame:CGRectMake(0, 6, 51, 30)];
[btnBack setBackgroundImage:[UIImage imageNamed:#"back#2x.png"] forState:UIControlStateNormal];
[btnBack addTarget:self action:#selector(backButtonClicked) forControlEvents:UIControlEventTouchUpInside];
[parentView1 addSubview:btnBack];
[btnBack release];
UIBarButtonItem *homeBarButtomItem2 = [[UIBarButtonItem alloc] initWithCustomView:parentView1];
[parentView1 release];
[self.navigationItem setLeftBarButtonItem:homeBarButtomItem2];
[homeBarButtomItem2 release];
NOTE: I can get this to work by switching leftbarbuttonitem to rightbarbutton item in my barbutton and barbutton2 methods. I'm just curious to know why it won't work normally!
For some strange reason, my leftbarbuttonitem is showing, but my rightbarbuttonitem just never pops up! Here's my code
-(void)barButton {
image = [UIImage imageNamed:#"BBut.png"];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setBackgroundImage: [image stretchableImageWithLeftCapWidth:7.0 topCapHeight:0.0] forState:UIControlStateNormal];
[button setBackgroundImage: [[UIImage imageNamed: #"BBut.png"] stretchableImageWithLeftCapWidth:7.0 topCapHeight:0.0] forState:UIControlStateHighlighted];
[button addTarget:self action:#selector(showlocations:) forControlEvents:UIControlEventTouchUpInside];
button.frame= CGRectMake(3.0, 0.0, image.size.width+1, image.size.height+0);
UIView *v=[[UIView alloc] initWithFrame:CGRectMake(3.0, 0.0, image.size.width+1, image.size.height) ];
[v addSubview:button];
UIBarButtonItem *modal = [[UIBarButtonItem alloc] initWithCustomView:v];
self.navigation.leftBarButtonItem = modal;
-(void)barButton2 {
image2 = [UIImage imageNamed:#"Refresh.png"];
UIButton *button2 = [UIButton buttonWithType:UIButtonTypeCustom];
[button2 setBackgroundImage: [image2 stretchableImageWithLeftCapWidth:0.0 topCapHeight:0.0] forState:UIControlStateNormal];
[button2 setBackgroundImage: [[UIImage imageNamed: #"Refresh.png"] stretchableImageWithLeftCapWidth:0.0 topCapHeight:0.0] forState:UIControlStateHighlighted];
// [button2 addTarget:self action:#selector(viewDidLoad) forControlEvents:UIControlEventTouchUpInside];
button2.frame= CGRectMake(281.0, 5.0, image2.size.width, image2.size.height);
UIView *v2=[[UIView alloc] initWithFrame:CGRectMake(281.0, 5.0, image2.size.width, image2.size.height) ];
[v2 addSubview:button2];
UIBarButtonItem *refresh = [[UIBarButtonItem alloc] initWithCustomView:v2]; self.navigation.rightBarButtonItem = refresh;
NSLog(#"THE ACTION HAS BEEN RECIEVED!"); }
In my ViewDidLoad Method, I have this:
[self barButton2];
[self barButton];
The action does go through and I do receive my NSLog method. Does anyone know why this is happening? The Left Bar Button always shows up and if I change the the first barbutton to rightbarbuttonitem and change the barbutton2 to leftbarbutton item, and then change the CGRect coords, it works, and that's what I'm using right now to get it to work, but why is this happening? Thanks in advance.
You don't see the right button because you are drawing it outside the screen.
The button2 X coordinate is set to 281.0 and its parent view X coordinate is also set at 281.0. As a result your button is in x = 562, meaning it is outside the screen.
Set your button2 X coordinate to 0 and see if that helps:
button2.frame= CGRectMake(0.0, 5.0, image2.size.width, image2.size.height);
You seem to be creating a new view with each action and adding a button. So, you never see both buttons. You will need to access the same view in both the actions to make sure you add two button subviews.
I'm trying to change a UIImage in a UIButton, when highlighted. The UIButton is situated in a UINavigationController.
I have the following code:
UIView *containingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 28, 28)];
UIButton *barUIButton = [UIButton buttonWithType:UIButtonTypeCustom];
[barUIButton setImage:[UIImage imageNamed:#"Add.png"] forState:UIControlStateNormal];
barUIButton.imageView.contentMode = UIViewContentModeScaleAspectFit;
barUIButton.frame = CGRectMake(-9, 0, 28, 28);
[barUIButton addTarget:self action:#selector(addButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
[barUIButton setImage:[UIImage imageNamed:#"AddHighlighted.png"] forState:UIControlStateSelected | UIControlStateHighlighted];
[containingView addSubview:barUIButton];
UIBarButtonItem *containingBarButton = [[[UIBarButtonItem alloc] initWithCustomView:containingView] autorelease];
self.navigationItem.rightBarButtonItem = containingBarButton;
Instead of the new image showing when highlighted, there is just a black shadow around the existing image.
Why is this?
It looks like the UIButton instance isn't getting highlighted or selected on the touch down event. This is probably because UIBarButtonItem instances don't act like normal buttons; in fact, they're not even UIButton subclasses.
There is a workaround. If you keep a reference to your UIButton in an instance variable, you can add code to change the button's image:
[barUIButton addTarget:self action:#selector(pressDown:) forControlEvents:UIControlEventTouchDown];
[barUIButton addTarget:self action:#selector(pressUp:) forControlEvents:UIControlEventTouchUp];
In pressDown: and pressUp:, you can set the
-(void)pressDown:(id)sender
{
[barUIButton setImage:[UIImage imageNamed:#"Add.png"] forState:UIControlStateNormal];
}
And similarly for pressUp:.