I need to make my grouped UITableView backgroundColor transparent.
So i write following code. That is work in iOS 6. But in iOS 5, it doesn't work.
self.tbView.backgroundView = nil;
How to do that in iOS 5.
Are you setting [self.tbView setBackgroundColor:[UIColor clearColor]];?
If not, you need to add that or you won't get a transparent backgorund color.
You Need to put background Nil code into ViewDidLoad this is working fine in my Code. Hope this Helps you.
[tbl_My_Table setBackgroundView:nil];
[tbl_My_Table setBackgroundView:[[[UIView alloc] init] autorelease]];
I got it answer.
We need to add two lines of codes for both iOS 6 and iOS 5.
Here is codes.
self.tblPreferences.backgroundView = nil;
self.myTable.backgroundColor = [UIColor clearColor];
That is working both iOS 5 and 6.
Related
My iOS app is in Arabic (right-to-left) language only. Prior to iOS 9 the views layout and view animations were all by default left-to-right. So, I had customised the complete app and had reversed the default behaviour e.g. back button in navigation bar was set to be on the right instead of default left.
But now when the app is compiled using latest SDK (Xcode 7 beta 4), everything is the opposite of what I need.
Is there any simple way to force the app to show views and behave like iOS 8 and 7?
I searched and found a solution but it involves changing the constraints(Uncheck the "Respect language direction") for all views. But this is not a feasible solution in large projects.
This is a screenshot after compiling with Xcode 7 beta 4.
and this is a screenshot when compiled with Xcode 6.
Edit: The following code may cause unexpected behavior as #wakachamo pointed out. So, please watch out for issues e.g. Interactive pop gesture doesn't work, alertviews don't show, etc. Its better to follow the instruction provided by #wakachamo if this doesn't work for you
Add this to app delegate didFinishLaunchingWithOptions method.
[[UIView appearance] setSemanticContentAttribute:UISemanticContentAttributeForceLeftToRight];
Also add guard to support earlier version so that the property doesn't cause any crash.
if([[[UIView alloc] init] respondsToSelector:#selector(setSemanticContentAttribute:)]) {
[[UIView appearance] setSemanticContentAttribute:UISemanticContentAttributeForceLeftToRight];
}
[[UIView alloc] init] instead of [UIView appearance] because respondsToSelector is not currently working with [UIView appearance] for setSemanticContentAttribute. You can also add iOS 9 Check
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
if(SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(#"9.0")) {
[[UIView appearance] setSemanticContentAttribute:UISemanticContentAttributeForceLeftToRight];
}
i found the correct way from Apple Developer Forums
here iOS 9 beta - UIAlertController is not working
just add this code to make alertview work with it
if(SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(#"9.0")) {
[[UIView appearance] setSemanticContentAttribute:UISemanticContentAttributeForceLeftToRight];
[[UIView appearanceWhenContainedIn:[UIAlertController class], nil] setSemanticContentAttribute:UISemanticContentAttributeUnspecified];
[[UIView appearanceWhenContainedIn:[UIAlertView class], nil] setSemanticContentAttribute:UISemanticContentAttributeUnspecified];
}
I know its too late to answer. But I have figured it out (Only the navigation bar issue).
The answer is adapted from #Kamran Kan. Thanks #Kamran.
Jus replace the UIView with UINavigationBar in #Kamran's answer. then the code will be as follows.
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
if(SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(#"9.0")) {
[[UINavigationBar appearance] setSemanticContentAttribute:UISemanticContentAttributeForceLeftToRight];
}
Since it is only effect the UINavigationBar, the other controls won't effect. So the UIAlertView is working fine...
There is no easy way. It's recommended that you migrate to standard API as much as possible long-term.
Another approach is to set the semanticContentAttribute of all the affected views to UISemanticContentAttributeForceLeftToRight, but this is just as feasible as setting all your constraints to use Left/Right instead of Leading/Trailing. In addition to this, you'll also have to gate these calls around an availability check if you're targeting iOS <9.
SWIFT 2 Code
if #available(iOS 9.0, *) {
myView.semanticContentAttribute = .ForceLeftToRight
}
For SWIFT 3
if #available(iOS 10.0, *) {
UIView.appearance().semanticContentAttribute = .forceLeftToRight
}
Use Storyboard and choose for each specific view controllers
Semantic->Force Left-to-Right.
In the IOS 7 UILocalizedIndexedCollation are looking very odd and i would like to customise the background color and text color, i have googled everywhere but no success, If somebody able to get something on this please help me
self.tableView.sectionIndexColor = [UIColor darkGrayColor];
self.tableView.sectionIndexBackgroundColor = [UIColor clearColor];
this truly help by "rmaddy"
UILocalizedIndexedCollation has no public properties for setting its appearance, which means that you cannot customize it in a direct way.
Compare the two screenshots:
Done on iOS 7.0 simulator
And the one done on iOS 7.0.3 iPhone 4S:
Same code here and there and same stuff! Any idea why the translucency is gone on the real device?
I have this code to simulate it (I know it's probably awkward and not right but that's how it is):
topMenuView = [[UIView alloc] initWithFrame:CGRectMake(self.view.frame.origin.x, 0, self.view.frame.size.width, TOP_BAR_ORIG_HEIGHT)];
topMenuView.clipsToBounds = YES;
UIToolbar *topMenuViewBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, -4, self.view.frame.size.width, TOP_BAR_ORIG_HEIGHT + 4)];
topMenuViewBar.barStyle = UIBarStyleDefault;
topMenuViewBar.barTintColor = [BSFunctions getColorFromHex:#"1ea6ff"];
const CGFloat statusBarHeight = 20;
UIView *underlayView = [[UIView alloc] initWithFrame:CGRectMake(0, -statusBarHeight, topMenuViewBar.frame.size.width, topMenuViewBar.frame.size.height + statusBarHeight)];
[underlayView setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
[underlayView setBackgroundColor:[BSFunctions getColorFromHex:#"1ea6ff"]];
[underlayView setAlpha:0.36f];
[topMenuViewBar insertSubview:underlayView atIndex:1];
UIView *underlayView2 = [[UIView alloc] initWithFrame:CGRectMake(0, -statusBarHeight, topMenuViewBar.frame.size.width, topMenuViewBar.frame.size.height + statusBarHeight)];
[underlayView2 setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
[underlayView2 setBackgroundColor:[BSFunctions getColorFromHex:#"0291ff"]];
[underlayView2 setAlpha:0.36f];
[topMenuViewBar insertSubview:underlayView2 atIndex:2];
[topMenuView addSubview:topMenuViewBar];
[self.view addSubview:topMenuView];
The main point is it used to work before on the device! But after iOS 7.0.3 came out it changed. I'm noticing the same behavior in Facebook and Fitocracy iOS apps.
UPDATE
On Xcode 5.0.1 with iOS 7.0.3 simulator we have this (which is different from the first image on iOS 7.0 simulator as you can see):
OK, so after having played around with the colours a bit more, I managed to get a similar sort of appearance with the blur!
Previously, I was setting a barTintColor on the navigation bar appearance which had the following values:
R:17
G:63
B:95
A:1
This was fine in iOS < 7.0.3, and the output color in the nav bar (with the blur effect) was actually:
R:62
G:89
B:109
Since iOS 7.0.3, the barTintColor seems to take into account the alpha value of the color we set. This meant that the nav bar was actually outputting a solid color 17,63,95, and there was no blur effect.
The key to getting the blur effect back is setting an alpha < 1 in the barTintColor.
After lots of guess work and trying different RGB values, I managed to get the exact same RGB output from the nav (and tab) bar, using the following RGBA:
R:4.5
G:61.6
B:98
A:0.65
It does not look like there's a magic ratio to apply to the previous color to obtain the new one.
Anyway I've actually rejected the binary that got approved this afternoon, and have re-submitted with these new values so that user's don't get an ugly app :)
Hope this helps.
At this point in time I'd like to keep my code compatible with Xcode 4, therefore I don't want to upgrade my nib files.
However, I can't change the UISegmentedControl control tint colour and use the new iOS7 version of the control without upgrading the nib file.
I've seen ..
[NSUserDefaults standardUserDefaults] setObject:#Yes forKey#"UIUseLegacyUID"]
Which will keep iOS6 layout, I'm not sure if there is an future version or whether this would help?
With Xcode 5, you can change your XIB to use the property of Xcode 4 and iOS 6.
By default you have:
But, you can change the property for Xcode 4.6 and iOS 6:
You can change the tint color in the code like this:
UISegmentedControl *segmentedControl = ...;
// For backwards compatibility
if ([segmentedControl respondsToSelector:#selector(tintColor)])
{
segmentedControl.tintColor = [UIColor redColor];
}
You can set different segment image and color for each segment. For color you may use:
//get the subviews of the segmentedcontrol
NSArray *arri = [segmentedControl subviews];
//change the color of every subview(segment) you have
[[arri objectAtIndex:0] setTintColor:[UIColor redColor]];
[[arri objectAtIndex:1] setTintColor:[UIColor greenColor]];
I have made a tab bar iOS project, when I received the request to change the tab bar's background image to a custom image. The project is developed for iOS 4.x, so the iOS5's
[tabBar setTabBarBackgroundImage:[UIImage imageNamed:#"custom.jpg"]] does not work. Can you suggest me some simple solutions (if there is any possibility, I would not like to change the entire project)?
Edit:
Only three lines of code can resolve all:
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"customImage.png"]];
[self.tabBarController.tabBar insertSubview:imageView atIndex:0];
[imageView release];
A possible solution would be to put an UIView with your background image exactly behind the UITabBar. Then lower the opacity of your tabbar to 0.5 so you can see the background-image coming through.
UIView *bckgrndView = [[UIView alloc] initWithFrame:CGRectMake(tabbar.frame.coords.x, tabbar.frame.coords.y, tabbar.frame.size.width, tabbar.frame.size.height)];
[bckgrndView setBackgroundImage:[UIImage imageNamed:#"custom.jpg"]];
[tabbar.superView insertSubView:bckgrndView belowSubview:tabbar];
tabbar.alpha = 0.5;
[bckgrndView release];
Sorry if my code contains some errors. I tried doing this by heart... But you'll catch the drift.
I have answered similar kind of question here. Hope it will help.
Check out NGTabBarController, an open source tab bar replacement with customizable background image.