Is there a built in badge icon like the info icon so that I can show status updates on other views in my app? It's easy enough to duplicate manually but I'd like to use a built in resource if it's available.
Check out CustomBadge, the site is in German, but theres sample source code there.
You can also steal a badge from a tabbar view like this:
.h
IBOutlet UITabBarItem *tabbarItem;
UIView *badgeView;
.m
badgeView = [[UIView alloc] initWithFrame:CGRectMake(25,100, 32, 32)];
badgeView.backgroundColor = [UIColor clearColor];
badgeView.clipsToBounds = NO;
[badgeView addSubview:[((UIView *)[tabbar.subviews objectAtIndex:0]).subviews objectAtIndex:0]];
and to set the value for that badge:
tabbarItem.badgeValue = unreadCount;
Note that you don't have to use a UITabbar thats visible in your app, you are simple stealing the badge resource.
I'm sure it's not available for developers since Apple doesn't like to reuse assets for different purposes. Those badges have one definitive and simple purpose -- show the number of updates on the app icon. That's the only purpose they serve.
Related
I need to see the HomeScreen from the UIWindow by making the UIWindow background as transparent. How to achieve this ?
I have tried with [UIColor ClearColor]; But its displaying BlackColor only.
It's not possible to see the homescreen inside your app. Apple did this to save power (who needs to render the homescreen while he's using an app) and to prevent devs from irritating users by making them think they are on their homescreen.
This is not good to do but its necessary then i think you use like below might be userful to you
self.window.backgroundColor = [UIColor colorWithRed:55.0f green:55.0f blue:55.0 alpha:0.05];
I have a need to use a custom background for the UINavigationBar in a MFMailComposeViewController. Previously I was using a category on UINavigationBar to achieve this throughout my app, but Apple specifically requests that you do not do this. Additionally this may or may not work in future versions of iOS that are currently under NDA.
I am now using a subclass of UINavigationBar to achieve the look I'm after in the rest of the app, but I can't see any way to use this with the MFMailComposeViewController. Any ideas?
Note: I'm aware of methods to do this in a future version of iOS, but this needs to be built against a current version (4.3) of the SDK.
I just ran across this -- you can dynamically inject the class a view controller uses using object_setClass.
#import <objc/runtime.h>
object_setClass(mailController.navigationBar, [YourNavigationBarSubClass class]);
You can customize the nav bar's titleView with a custom view using the code below. Expanding upon this idea, you may be able to resize the titleView to cover the entire navigation bar and use a custom background in that to simulate a custom navbar background.
The only possible sticky part I can think of is that you need to make sure the titleView sits behind the buttons in the toolbar.
Once you have your MFMailComposerViewController reference, here is the code to customize the titleView:
[self presentModalViewController:controller animated:YES];
UIView *backgroundView = [[UIView alloc] initWithFrame:CGRectMake(//set size to navbar size)];
[backgroundView setBackgroundColor:[UIColor colorWithPatternImage://your custom image ]];
controller.topViewController.navigationItem.titleView = backgroundView ;
[controller release];
The mail composition interface itself is not customizable and must not be modified by your application.
check apple reference for more info...
http://developer.apple.com/library/ios/#documentation/MessageUI/Reference/MFMailComposeViewController_class/Reference/Reference.html
but we can customizable the mail composition as given oin the above answer....
After some hacking and testing, still not manage to customize the button. But this is the closest I can get, by setting the tint color of mail controller.
Try accessing them through mailController.navigationBar.items, which is an array of the bar items.
MFMailComposeViewController *mailController = [[MFMailComposeViewController alloc] init];
mailController.mailComposeDelegate = self;
mailController.navigationBar.tintColor = [UIColor brownColor];
Although it would be nice to get more control over the appearance, I don't think there is a clean method. When you cant change it...hide it:
NSDictionary *attributes = #{NSForegroundColorAttributeName: [UIColor clearColor]};
[[UINavigationBar appearance] setTitleTextAttributes:attributes];
I have seen many times waiting panels (panels with a uiactivityindicatorview) black/dark with some transparency and white labels.
Like this one :
I guess it is a standard element.
Where can I find it?
Try This. it's the best solution I came across to show the activity. MBProgressHUD
MBProgressHUD looks nice. You might want to check out http://code.google.com/p/toast-notifications-ios/ too.
There's no iOS component that does this.
If you don't want to include an external library just for this one component then you can do it using UI components.
/* Warning, typed from memory */
// Create the UIView that's the background
UIView *pleaseWaitView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 80)];
[pleaseWaitView setBackgroundColor:[UIColor colorWithWhite:0.5 alpha:0.5]];
[[pleaseWaitView layer] setCornerRadius:5.0f];
// And create an activity indicator
UIActivityIndicator *i = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
[i startAnimating];
[pleaseWaitView addSubview:i];
[i release];
// Add it to the main view (in the middle)
[pleaseWaitView setCenter:CGPointMake(self.view.bounds.size.width/2, self.view.bounds.size.height/2)];
[self.view addSubview:pleaseWaitView];
You can add a UILabel with whatever text you want (in your case, 'Authenticating') in the same way as you added the activity indicator.
The tricky part is setting the corner radius - you will probably need this at the top of your .m file :
#import <QuartzCore/QuartzCore.h>
NB You can do this in interface builder as well if you want (apart from the corner radius bit!) ;)
I answered a question that included an overlay like this. I included the code and the overlay image you need to do it with. Take a look at this answer and take a look at the screen shot it created. I use this overlay as I send email in the background so you will want to edit the code to do your function but the overlay code is already in place.
Locking the Fields in MFMailComposeViewController
Happy Coding!
Check out DSActivityView. I've successfully used it in a few of my projects.
As by now there is no standard UIElement for that in iOS.
But checkout this library:
Does anyone know how can we send mail without presenting the MFMailComposerView?
OR
Is there any way I can add a background image on the MFMailComposerView?
I tried changing the backgroud color. it doesn't work.
Only thing i could do was change the navigationBar Tint color
Code:
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
picker.navigationBar.tintColor=[UIColor blackColor];
picker.view.backgroundColor=[UIColor brownColor];
Thanks in advance!
From the apple documentation:
Important: The mail composition interface itself is not customizable and must not be modified by your application. In addition, after presenting the interface, your application is not allowed to make further changes to the email content. The user may still edit the content using the interface, but programmatic changes are ignored. Thus, you must set the values of content fields before presenting the interface.
I don't think it's possible, or even if possible, it would be probably rejected by AppStore.
In my code I am using a UISegmentedControl as a "button" with only ONE segment and the momentary property set to YES. In versions of the SDK prior to iOS 4, this was not a problem, but it appears that now iOS 4 requires that there be at least 2 segments. The following code throws an exception:
NSArray *titles = [NSArray arrayWithObject:#"Button Title"];
myButton = [[UISegmentedControl alloc] initWithItems:titles];
and now in Interface Builder you cannot even create a UISegmentedControl with less than 2 segments. It logs the following error when building:
"The number of segments property of a segmented control must be greater than or equal to 2."
I'm kinda stumped. Any work arounds for this? I tried to create a UISegmentedControl with two buttons and then remove one programmatically and that "works" as it doesn't cause the app to crash. I get a button in iOS 3 and nothing in iOS 4. Any ideas?
Have you tried this:
[myButton removeAllSegments];
[myButton insertSegmentWithTitle:#"Press this" atIndex:0 animated:NO];
Really strange. It still works fine for me both in iOS4 simulator and device (this is a real working snippet from my code):
NSArray *laterContent = [NSArray arrayWithObjects: #"Maybe later", nil];
UISegmentedControl *later = [[UISegmentedControl alloc] initWithItems:laterContent];
CGRect frame = CGRectMake( 20,
98,
self.alert.bounds.size.width/2 - 30,
30);
later.frame = frame;
later.selectedSegmentIndex = -1;
[later addTarget:self action:#selector(laterAction:) forControlEvents:UIControlEventValueChanged];
later.segmentedControlStyle = UISegmentedControlStyleBar;
later.tintColor = [UIColor colorWithRed:130.0f/255.0f green:74.0f/255.0f blue:54.0f/255.0f alpha:0.8f];
later.momentary = YES;
later.alpha = 0.9;
It's not exactly a code-related solution but: I hit a similar issue and ended up drawing my own similar looking resources in Photoshop. It was not terribly difficult to do and removed a particular bad "code smell", IMO.
I found if you have a previous project with a single-segment UISegmentedControl, you can open both that project and your new one in Interface Builder and drag (or copy/paste) the single-segment UISegmentedControl to your new view controller. It will work fine in both your app and Interface Builder, just don't change the number of segments from 1 to anything else as it won't let you go back. I'm using Xcode 4.6.2 and iOS 6.
The editor in Interface Builder won't let you change the number of segments to be less than 1, but you can make a segmented control in IB by editing the .xib xml manually.
Right click on the .xib containing the segmented control
Choose Open As -> Source Code from the popup menu.
Find "<segments> which is the beginning of the xml array of segments. The whole thing should look like:
<segments>
<segment title="Segment 1 Title"/>
<segment title="Segment 2 Title"/>
</segments>
Just delete <segment title="Segment 2 Title"/> so there is only one segment element.
Right click the .xib again and choose Open As -> Interface Builder - iOS to go back to interface builder.
You should also probably set the segmented control to "momentary" mode.
I don't get any errors compiling or running this. Of course, this is a hack, and may break things in some circumstances or in a future iOS release.
Well two possibilities:
1) Create a button and the set background image as the single dot of the UISegmentedControl
If your SegmentedControl is a class variable just replace the #property
#property (nonatomic, retain) IBOutlet UIButton *button;
In the viewDidLoad-function add the following
-(void) viewDidLoad
{
[super viewDidLoad];
...
self.button = [UIButton alloc] init];
[self.button setBackgroundImage:[UIImage imageNamed:#"segmentedDot.png"] forState:(UIControlState)UIControlStateNormal];
}
2) Set the amount of segments to three of your UISegmentedControl and afterwards set the width to 20 - now only the dot in the middle will be shown.
Dont forget, if the user interacts with the UISegmentedControl, set the currentElement again to the second segment, else the dot will be in light grey instead of white state.
3) Place a button or a small view over the unwanted second dot of the UISegmentedControl in InterfaceBuilder. Make sure the backgroundcolor is even.
When you are using a button set the state for "user interaction" in attribute inspector to disabled. As type I would chose "custom" since you won't have some borders in your button ;)
Now male again sure, that always the first dot is the active Element.
However I think solution one should be the way you should go, since Apple thought something about it, when they disabled the 1-dot-SegmentedControl. Since you are using the Control as a button the Element you are looking fpr should be a button. ;)
There's no workaround in iOS 4. If you need this functionality, file a bug (enhancement request) at bugreport.apple.com.
You can also use removeSegmentAtIndex:animated:. If you create a segmented control in a storyboard or xib with two segments, you can remove one like this:
[self.sortButton removeSegmentAtIndex:1 animated:NO];