I'm trying to put a searchbar inside a TableView which is a subview of a simple ViewController. The result compiled it's this: Screenshot
Now everything works and I can search correctly. The problem is the visual glitch I had when I search something: Screenshot
What I want it's just that the search bar goes to the top of the screen or better that my header don't disappear.
Set the frame of the searchBar with animation just to the top of the screen when search bar start begin editing (when keyboard appears). just like that-
-(void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar{
CGRect frame=searchBar.frame;
frame.origin.y=0;
[UIView animateWithDuration:1.0 animations:^{
searchBar.frame=frame;
}];
}
Related
in my app im tapping on a navigation bar button and as a response i move the view beneath the navigation bar 60 px down (the delta var in the code), and under the view that moves down, appears a UITextField and at the same time show the keyboard.
that's how i achieve it:
-(void)btnSearch_Click:(id)sender{
float delta = _viewBtnSort.frame.size.height;
CGRect rect = rectSearch;
rect.origin.y += delta;
[UIView animateWithDuration:0.3f animations:^{
[_viewSearchResults setFrame:rect];
}completion:^(BOOL finished) {
[buttonSearch setEnabled:NO];
[_txtFieldSearch becomeFirstResponder];
}];}
Problem
it works fine for a few times and then for some unexplained reason(couldnt find so far why), when the keyboard appears it pushes my view back up i and i dont get the effect i want.
anybody got any ideas? thanks!
so i kept looking for a fix, and did it using this iOS8: What's going on with moving views during keyboard transitions? answer.
i changed my constraint instead of the frame and now it seems to work fine.
I'm using a UINavigationBar in a regular UIViewController (not a UINavigationController) and updating the contents of the navigation bar using setItems:animated, pushNavigationItem:animated and popNavigationItem:animated, with animated set to YES.
Works fine, except that I would like the crossfade animation of the navigation bar, rather than the built-in animation which "pushes" the previous bar to left or right.
So far the only way I can see how to do this would be to manually set the title, left and right contents of the bar, using setLeftBarButtonItems:animated, setRightBarButtonItems:animated and probably a custom view for the title with setTitleView so that I can do the crossfade.
Anybody has a better solutions to my problem?
Just tried this and it worked:
[UIView transitionWithView:self.navBar duration:2.0f options:UIViewAnimationOptionTransitionCrossDissolve animations:^{
myNavigationItem.leftBarButtonItem = newLeftItem;
myNavigationItem.rightBarButtonItem = newRightItem;
myNavigationItem.title = #"My New Title";
} completion:nil];
I have a UISegmentedControl set up in my XIB. I want it to appear on viewDidLoad and if the user taps the area of the screen it's in, and then to disappear if the user taps it again or to fade out if the user leaves it alone.
In looking around for how to manage this I've found a lot of stuff about fading UIViews, but not as much on fading individual subviews, and little at all on fading elements in the XIB. I tried to adapt the UIView stuff but failed.
How can I make this work?
EDIT: Okay, I've got the appearance at viewDidLoad and the fade out working. But when the user taps the area where the UISegmentedControl is (now invisible because alpha=0), nothing happens. This is the code I'm using:
- (IBAction)tapInvisibleSegContr
//This is connected to the UISegmentedControl with the action Touch Up Inside. Until now, the segmented control has been at alpha=0 since fading after viewDidLoad.
{
self.segContrAsOutlet.alpha=1.0;
[self fadeMethodThatWorksInViewDidLoad];
NSLog(#"Yup, tapped.");
}
I'm not even getting the NSLog. I've got the action hooked up to the UISegmentedControl, with the action Touch Up Inside. What am I missing?
If it is resident in a xib, just put his alpha to 0, do the properly connections: an Outlet and an IBAction for value changed
Then in the viwDidLoad right after [super viewDidLoad] write:
[UIView animateWithDuration:1 animations:^{self.mySegOutlet.alpha = 1;}];
Inside the IBAction right after you code the answer before the last } write:
[UIView animateWithDuration:1 animations:^{self.mySegOutlet.alpha = 0;}];
This is the easiest method.
Bye
In the xib set your control's alpha to 0.0, then use UIView animation methods to animate its alpha to 1.0. For example:
[UIView animateWithDuration:1.0 animations:^{
self.segmentedControl.alpha = 1.0f;
}];
EDIT: To your problem with not getting the action called, try attaching it for the value changed control event - I don't think UISegmentedControl sends for touch up inside.
I am using the code snippet from Tito to add a custom button to my tab bar:
https://github.com/tciuro/CustomTabBar
(Subclassing UITabbarController and adding a custom button using
// .. created a UIButton *button
[self.view addSubview:button];
)
This works great with my storyboard-based app except for the case of a subview within a navigation controller with the option "Hides bottom bar on push" enabled.
This hides the tab bar as promised, but not the custom button.
Seems like the button should be added as a subview to the tab bar itself?
I tried this ugly code which did not even make the button show up:
for(UIView *view in self.view.subviews)
{
if([view isKindOfClass:[UITabBar class]])
{
[view addSubview:button];
break;
}
}
Any ideas?
UPDATE:
My solution:
In my ApplicationDelegate i define the following methods, which i call whenever needed in the viewWillAppear or viewWillDisappear methods:
-(void)hideCenterButton:(BOOL)animated
{
if(animated){
[UIView animateWithDuration:0.3
delay:0.0f
options:UIViewAnimationCurveLinear
animations:^{
CGRect frame = self.centerButton.frame;
frame.origin.x = -100;
self.centerButton.frame = frame;
}
completion:^(BOOL finished){
}];
}
}
-(void)showCenterButton:(BOOL)animated
{
if(animated){
[UIView animateWithDuration:0.35
delay:0.0f
options:UIViewAnimationCurveLinear
animations:^{
CGRect frame = self.centerButton.frame;
frame.origin.x = (self.view.superview.frame.size.width / 2) - (self.centerButton.frame.size.width / 2);
self.centerButton.frame = frame;
}
completion:^(BOOL finished){
}];
}
}
I had to set the animation's duration to 0.35s to get a smooth effect in harmony with the tab bar.
Why don't you make button your tabbar's part.
tabBarController.tabBar.addSubView(yourButton)
everything would be solve. cheers!
One easy way to handle this would be to create an instance of the button in .h of your file.
UIButton *customTabButton;
When calling the hides bottom bar on push set the button property to hidden and reset it again in the other views if the bottom bar is visible.
shareFbButton.hidden=YES;
You can check this is the viewDidLoad of all the files and put this line of code if needed to make sure you are displaying the button and hiding the button on all the pages you need.
if(self.tabBarController.tabBar.isHidden){
// set or reset the custom button visibility here
}
This is one way.
I think there are 2 ways you can got with this.
1) try to get the button into a view that is above the old top view controller and the tab bar BUT below the new top view controller that is pushed.
2) animate away the button when the new view controller is pushed.
The first will require mucking with the iOS proprietary view hierarchy which is undocumented, unsupported and could change anytime.
The second will be a matter of making the animation appear smooth enough for your user not to notice. It's not entirely a matter of behaving perfect, just appearing appropriately.
I would personally recommend an animation of the the button disappearing (animate it's alpha to 0) and reappearing based on if your view controller that goes over the tab bar is appearing or disappearing.
The animation for a navigation is (I believe) 0.3 seconds. If the button is in the middle of the tab bar, you'll likely want it invisible as the animating in view controller reaches it (if not sooner) so something between 0.1 and 0.15 seconds could be used to animate it out.
Now this does not make the button behave exactly the same as the tab bar, but with the quickness of the transition being so short, it will be unnoticeable really to the user.
Now just to provide a question for you to ask yourself. Why do you need to push a view controller that overlaps the tab bar? Why is that more desirable/necessary than presenting a modal view controller? If you can strongly argue for it, keep at it and good luck, if it's not necessary however, you may be able to achieve the experience you want with a modal view controller.
Check this one to put a button on the UITabBar. See if it works after with hidesBottoBarWhenPushed.
Edit: just to be clearer on what I am looking to do. I have 1 view with button on it. When you press the button a new view transisions in with a flip. On the new view their are two switched that I set through code after the user has clicked the button. What I want to happen is that the switches are in their final spots, before the new view flips in. What happens is the new view flips in, and then the UIswitches flicker into place.
This is the code I have. I have tried setting the uiswitch on viewwillappear and viewdidload, but each time it comes over with the default setting from IB and switched after the UIview transition is complete. I want the switch to be set already, so that once the view "flip" is done, there is no more movement on the screen. Thanks.
//set the uiswitch before the transision
[self.settingsPage.myUISwitchThing setOn:NO animated:NO];
//transition by flip
[UIView transitionFromView:self.view toView:self.settingsPage.view duration:1.0 options:UIViewAnimationOptionTransitionFlipFromRight completion:^(BOOL done ) {
[self.view removeFromSuperview];
Looks like the issue was that I was trying to animate the switch movement when I was setting the switch value in the viewdidload. setting animated:NO has resolved the issue in the iPhone simulator. hopefully it will fix it on the device when I can test it at home later.