I am customizing MFMailComposeViewController it is working fine in ios 5.0 and ios 5.1 but not working properly in ios 6. The custom send and cancel button does not appear in mailcontroller.
My code is :
sendBtn = mailer.navigationBar.topItem.rightBarButtonItem;
cancelBtn = mailer.navigationBar.topItem.leftBarButtonItem;
[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:#"navigation.png"] forBarMetrics:UIBarMetricsDefault];
UINavigationItem *mailVCNavItem = [mailer.navigationBar.items objectAtIndex:0];
// Get the old bar button item to fetch the action and target.
UIBarButtonItem *oldCancelBarButton = [mailVCNavItem leftBarButtonItem];
// Create your new custom bar button item.
// In my case I have UIButton with image set as a custom view within a bar button item.
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
[backButton setImage:[UIImage imageNamed:#"cancel-button-hover.png"] forState:UIControlStateNormal];
[backButton addTarget:oldCancelBarButton.target action:oldCancelBarButton.action forControlEvents:UIControlEventTouchUpInside];
[backButton setFrame:CGRectMake(0, 0, 55, 28)];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
UIButton *sendbtn = [UIButton buttonWithType:UIButtonTypeCustom];
[sendbtn setImage:[UIImage imageNamed:#"send-btnComment.png"] forState:UIControlStateNormal];
[sendbtn addTarget:self action:#selector(sendMail:) forControlEvents:UIControlEventTouchUpInside];
[sendbtn setFrame:CGRectMake(0, 0, 55, 28)];
self.navigationItem.rightBarButtonItem =[[UIBarButtonItem alloc] initWithCustomView:sendbtn];
MFMailComposeViewController and the related Facebook and Twitter sharing views are implemented through remote view controllers in iOS 6. This means that the controllers are run in another process and it is no longer possible to customize them by accessing their properties or subviews directly. You can still do so through UIAppearence though, but what you are trying to with replacing the buttons is no longer possible in iOS 6.
Related
Here is my navigation bar
I had a problem about changing vertical position of Settings UIBarButtonItem on my navigation bar. I would like to move the button item "Settings" down
Here is my code
UIBarButtonItem *settingsItem = [[UIBarButtonItem alloc] initWithTitle:#"Settings" style:UIBarButtonItemStylePlain target:self action:nil];
self.navItem.rightBarButtonItem = settingsItem;
[[UIBarButtonItem appearance] setTitlePositionAdjustment:UIOffsetMake(0,-10) forBarMetrics:UIBarMetricsDefault];
I had tried it again and again. It seemed that it's not work
Could anyone suggest me how to move the button item "Settings" down ?
You can easily add a Custom Button to your NavigationBarItem, Here is the way,
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; //create custom Button
[button setTitle:#"Settings" forState:UIControlStateNormal];
[button.titleLabel setFont:[UIFont systemFontOfSize:14.0]];
[button setTitleColor:[UIColor colorWithRed:179.0/255.0 green:40.0/255.0 blue:18.0/255.0 alpha:1] forState:UIControlStateNormal];
button.frame = CGRectMake(0, 0, 50, 20); //Button frame
[button addTarget:self action:#selector(yourCustomSelectorHere) forControlEvents:UIControlEventTouchUpInside]; //Add action method to the button here
UIView *backButtonView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 63, 33)];
backButtonView.bounds = CGRectOffset(backButtonView.bounds, -14, -7);
[backButtonView addSubview:button];
UIBarButtonItem *barBtnItem = [[UIBarButtonItem alloc]initWithCustomView: backButtonView]; //set button as UIBarButtonItem
self.navigationItem.rightBarButtonItem = barBtnItem; //set barBtnItem to rightBarButtonItem
By changing backButtonView.bounds values you can change the origin of the Button
Cited from apple's documentation on UIAppearance protocol
iOS applies appearance changes when a view enters a window, it doesn’t
change the appearance of a view that’s already in a window.
So if your code of setting UIBarButtonItem's appearance is after the navigationItem assignment code. It won't work
Is it possible to change the back button on a UINavigationBar and change the title?
When I try to set the customView property, I get an image right next to the default button.
I use this code
self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithImage:backButtonImage landscapeImagePhone:nil style:UIBarButtonItemStylePlain target:nil action:nil];
I want the title to be "Back" which is easy enough to do in Storyboard. But the problem is that no matter if I use code above or use customView property, the default back button remains.
You can add a UIImage to the UIButton. And, then use it as a custom back button. Here's a quick example:
// Custom image
UIImage *backButtonImage = [UIImage imageNamed:#"button-background-image.png"];
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
[backButton setFrame:CGRectMake(0, 0, 100, 30)];
[backButton setBackgroundImage:backButtonImage forState:UIControlStateNormal];
// Custom title
[backButton setTitle:#"Back" forState:UIControlStateNormal];
[backButton setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
[backButton addTarget:self action:#selector(barPayButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
[backButton setShowsTouchWhenHighlighted:NO];
UIBarButtonItem *buttonOnBar =[[UIBarButtonItem alloc] initWithCustomView:backButton];
self.navigationItem.leftBarButtonItem = buttonOnBar;
Note: You will loose the chevron (system-provided back arrow) which was introduced in iOS7. It goes as a title and chevron together presenting your previous view controller.
Update:
You can also use UIEdgeInsets to resize your image intelligently.
UIEdgeInsets edgeInsets = UIEdgeInsetsMake(0, 0, 15, 10);
UIImage *backButtonImage = [[UIImage imageNamed:#"button-background-image.png"] resizableImageWithCapInsets:edgeInsets];
You can achieve what you want by setting the navigationItem.leftBarButtonItem of the view controller that's being pushed to the custom bar button item with the look you want. Good Luck!
My app has simple viewControll(XIB, no storyboard) with 6 sub views
When user click on buttons sub view bring in front of current view (by using call [self.view bringSubviewToFront:usageView];)
App working fine on IOS 6 and 7 but I facing issue on IOS 8.
When I click on buttons for bring sub view in front sub view come up with like below image
Navigation bar right side buttons "Done" show improper, its hide only in iOS 8
Please help me for this issue I am new in IOS development. If your required any more information please comment.
Add this in viewDidLoad method of this viewController and customise it like you want
UIImage *backButtonImage = [UIImage imageNamed:#"Back_A.png"];
UIImage *backButtonImage1 = [UIImage imageNamed:#"Back_B.png"];
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
[backButton setImage:backButtonImage
forState:UIControlStateNormal];
[backButton setImage:backButtonImage1
forState:UIControlStateSelected];
[backButton setImage:backButtonImage1
forState:UIControlStateHighlighted];
backButton.frame = CGRectMake(0, 0, 55, 45);
[backButton addTarget:self
action:#selector(goBack)
forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *backBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
self.navigationItem.rightBarButtonItem = backBarButtonItem;
With frame you can show the button where you want.
I'm trying to create a back bar button programmatically, similar to the iOS 7 default back button. But when I add my back bar button to the navigation item. The Chevron plus is missing. How can I achieve this?
UIImage* image_back = [UIImage imageNamed:#"leftarrow.png"];
CGRect backframe = CGRectMake(15, 5, 15,21);
UIButton *backbutton = [[UIButton alloc] initWithFrame:backframe];
[backbutton setBackgroundImage:image_back forState:UIControlStateNormal];
[backbutton addTarget:self action:#selector(Btn_back:)
forControlEvents:UIControlEventTouchUpInside];
[backbutton setShowsTouchWhenHighlighted:YES];
UIBarButtonItem *backbarbutton =[[UIBarButtonItem alloc] initWithCustomView:backbutton];
self.navigationItem.leftBarButtonItem=backbarbutton;
[backbutton release];
-(IBAction)Btn_back:(id)sender
{
[self.navigationController popViewControllerAnimated:YES];
}
I am making a custom bar buttons for uinavigationbar, I am using following code
UIImageView *backImgView= [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"chk_back.png"]]; [backImgView setUserInteractionEnabled:YES];
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithCustomView:backImgView];
[backButton setTarget:self];
[backButton setAction:#selector(BackBtn)];
checkIn_NavBar.topItem.leftBarButtonItem = backButton;
The problem is it is not calling its action. What i am doing wrong?
From Apple documentation:
Initializes a new item using the specified custom view.
- (id)initWithCustomView:(UIView *)customView
Parameters
customView
A custom view representing the item.
Return Value
Newly initialized item with the specified properties.
Discussion:
The bar button item created by this method does not call the action method of its target in response to user interactions. Instead, the bar button item expects the specified custom view to handle any user interactions and provide an appropriate response.
Solution: "Create button with your background image (set action to this button) and init bar button with this button". For example:
UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
btn.frame = CGRectMake(0,0,25,25)
[btn setBackgroundImage:[UIImage imageNamed:#"chk_back.png"] forState:UIControlStateNormal];
[btn addTarget:self action:#selector(BackBtn) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *barBtn = [[UIBarButtonItem alloc] initWithCustomView:btn];
I accomplished this using following code:
UIButton *nxtBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[nxtBtn setImage:[UIImage imageNamed:#"chk_next.png"] forState:UIControlStateNormal];
[nxtBtn addTarget:self action:#selector(NextBtn) forControlEvents:UIControlEventTouchUpInside];
[nxtBtn setFrame:CGRectMake(0, 0, 64, 31)];
UIBarButtonItem *nextButton = [[UIBarButtonItem alloc] initWithCustomView:nxtBtn];
checkIn_NavBar.topItem.rightBarButtonItem=nextButton;