I am working to force a view into landscape mode, and have picked up all kinds of cool tips to make this happen, but am stuck on one item that is left on the screen.
I have my XIB file laid out in landscape, and in my code I create the view controller normally:
RedeemViewController *aViewController = [[RedeemViewController alloc] initWithNibName:#"RedeemViewController" bundle:nil];
aViewController.hidesBottomBarWhenPushed = YES;
aViewController.wantsFullScreenLayout = YES;
[[self navigationController] pushViewController:aViewController animated:YES];
Inside the controller viewDidLoad I complete the following:
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeRight];
[[self navigationController] setNavigationBarHidden:YES animated:YES];
[UIView beginAnimations:#"View Flip" context:nil];
[UIView setAnimationDuration:.75];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
if (self.interfaceOrientation == UIInterfaceOrientationPortrait) {
self.view.transform = CGAffineTransformIdentity;
self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(90));
self.view.bounds = CGRectMake(0.0, 0.0, 480, 320);
}
[UIView commitAnimations];
What I end up with is a perfectly rotated view, with a grey vertical bar on the left side (see pic).
alt text http://taxhelp.net/vert_bar.png
So to the question, how do I get rid of the bar?
Edit: I am pretty sure this is the navigation bar that is not being hidden.
Your bounds rectangle is created with the origin at (0, -20). Change that to (0, 0) and you should be rid of the offset and have the view filling the screen.
Related
I'm animating a UINavigationController navigation bar and toolbar on and off screen. That works as expected -- but the view contained between them doesn't change size smoothly.
The bars animate on and off as they should, but the navigation view between them jumps from the reduced size (when both bars are visible) to the full screen size (when they're hidden).
Purely as a guess, I've tried this:
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1.0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[[self navigationController] setNavigationBarHidden:YES animated:YES];
[[self navigationController] setToolbarHidden:YES];
[UIView commitAnimations];
...but it doesn't make any difference.
Is there any way to get the navigation view to change size smoothly?
I can solve the problem by using animated:NO so that everything jumps, but that looks ugly.
Thanks in advance.
What I did to create a smooth view transition:
1) In Interface Builder, the view which basically in between of the navbar and toolbar, should not automatically resize its content (eg a picture) so I unticked Autoresize Subviews flag
2) Then created the following touch handler for the hide/unhide event. The key point is using the
[UIView transitionWithView:self.view
duration:UINavigationControllerHideShowBarDuration
options:UIViewAnimationOptionCurveLinear
animations:^
{
/* Put other animation code here ;) */
}];
code snippet to add extra animation for the built-in hide/unhide animations.
Originally I tried simple: hide/unhide the two bars and let iOS resize the inner view. The result (on Simulator) was disappointing, it was not smooth. If I did only one bar hide, it did well the view resizing, but not with two bars in the code.
So here's the full touchedBegun event handler which does the trick:
- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
AppDelegate *app = (AppDelegate*) [[UIApplication sharedApplication] delegate];
if (blVisible) {
[app.navigationController setToolbarHidden:YES animated:YES];
[app.navigationController setNavigationBarHidden:YES animated:YES];
[UIView transitionWithView:self.view
duration:UINavigationControllerHideShowBarDuration
options:UIViewAnimationOptionCurveLinear
animations:^
{
/* Put other animation code here ;) */
self.img.frame = CGRectMake(0, 0, 320, 480);
}
completion:^(BOOL finished)
{
}];
} else {
[app.navigationController setToolbarHidden:NO animated:YES];
[app.navigationController setNavigationBarHidden:NO animated:YES];
[UIView transitionWithView:self.view
duration:UINavigationControllerHideShowBarDuration
options:UIViewAnimationOptionCurveLinear
animations:^
{
/* Put other animation code here ;) */
self.img.frame = CGRectMake(0, 0, 320, 387);
}
completion:^(BOOL finished)
{
}];
}
blVisible = !blVisible;
}
One small comment: it is smooth now, but in Simulator what I see is that iOS somehow hides/unhides the two bars not in-sync so the view resize is not perfectly timed. Pls check on device too.
If you want more perfect solution I think you have to implement the bars for your own to fully controll their hiding/unhiding effect...
Within that animation block, you could try setting the frame of your in-between view to what it should be after the bars are hidden. That should make the transition smooth.
May be this Question may be duplicate but i really need your help..
UIWindow *window = [[[UIApplication sharedApplication] delegate] window];
NewFeedDetailVC *nextViewController = [[NewFeedDetailVC alloc] initWithNibName:#"NewFeedDetailVC" bundle:[NSBundle mainBundle]];
nextViewController.originRect = imgFrame;
nextViewController.currentscrolloffset=aStylizedView.contentOffset.y;
[window addSubview:nextViewController.view];
[UIView animateWithDuration:0.5
animations:^{
nextViewController.view.frame = CGRectMake(0, 20, 320, ScreenHeight-20);
}
completion:^(BOOL finished){
}];
above is demo code i have tried to make zoom animation before push ..
imgFrame is image on which user will tap
When user click right top orange (four square) button ,and code as below
[UIView animateWithDuration:0.5
animations:^{
self.view.frame=self.originRect;
}
completion:^(BOOL finished){
[test removeFromSuperview];
[self.view removeFromSuperview];
}];
view should be pop out with zoom in animation to there parent frame but i am not able to perform smooth transition and image suppose to be same as parent frame and just black view is scaling to original frame, and another issue is you can observe animation is not clipping out in navigation control even if Its frame is clipping in original scroll view.
Thanks
I have a view controller....when the user presses a button I want a black screen to fade in over the top and a uiactivityindicator to appear on top of the faded screen.
How can I get this animated fade in effect?
-(IBAction) loginToApp:(id)sender{
//fade in view
}
Add another view over the top of your view, colored solid black. You can do it in IB or programatically, just make sure it has a higher z-order (is on top). Make its alpha = 0. Then:
-(IBAction) loginToApp:(id)sender{
[UIView animateWithDuration:1.5 animations:^{ myview.alpha = 1.0; }]
}
...obviously you need an outlet or variable myview connected to that view. 1.5 = seconds. Change for your needs.
Sure you can. You can create the overlay view however you wish, but this will work (assuming you create appropriate instance variables somewhere). My code was in my view controller, so [self view] returns the view I want to shade over.
shadeView = [[UIView alloc] initWithFrame:[[self view] bounds]];
shadeView.backgroundColor = [UIColor blackColor];
shadeView.alpha = 0.0f;
spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorStyleWhiteLarge];
spinner.center = CGPointMake(CGRectGetMidX([shadeView bounds]),
CGRectGetMidY([shadeView bounds]));
[shadeView addSubview:spinner];
[[self view] addSubview:shadeView];
To present:
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:2.0];
[spinner startAnimating];
shadeView.alpha = 0.7f;
[UIView commitAnimations];
And to hide:
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1.0];
[spinner stopAnimating];
shadeView.alpha = 0.0f;
[UIView commitAnimations];
I want to fade the whole screen (including navigation bar) to black when a user presses a button on a uinavigationcontroler, before showing a new view. (i don't want to push this new view, for various reasons).
How would I achieve this?
EDIT
Thanks to Mac and Eiko, I have figured it out. Here's the code I used. Not sure if it is optimal, but it does the trick.
// this is called from a programmatically constructed button.
// change (void) to (IBAction) if linking from IB.
- (void)fadeAndShow:(id)sender
{
// blackView is a #property which has been #synthesize-d
// do I really need to alloc and init this?
blackView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
blackView.alpha = 0.0;
[blackView setBackgroundColor:[UIColor blackColor]];
[self.navigationController.navigationBar.superview addSubview:blackView];
[UIView beginAnimations:#"fadeAway" context:NULL];
[UIView setAnimationDelegate:self];
[UIView setAnimationDuration:0.75];
[UIView setAnimationDidStopSelector:#selector(showNewScreen:finished:context:)];
blackView.alpha = 1.0;
[UIView commitAnimations];
}
-(void)showNewScreen:(NSString *)animationID finished:(BOOL)finished context:(void *)context
{
// I guess you could fade in somewhere in the new view controller.
// don't know how to fade back in this view tho... viewDidAppear?
NewViewController *controller = [[NewViewController alloc] initWithNibName:#"NewView" bundle:nil];
[self.navigationController setNavigationBarHidden:YES];
controller.hidesBottomBarWhenPushed = YES;
[[self navigationController] pushViewController:controller animated:NO];
[blackView removeFromSuperview];
[controller release];
}
Off the top of my head (I haven't actually tested the following at all):
-(IBAction) buttonClicked:(id) sender
{
[UIView beginAnimations:#"myAnimation" context:nil];
[UIView setAnimationDuration:ANIMATION_DURATION];
blackView.alpha = 1.0;
[UIView commitAnimations];
}
Create a UIView in the navigationbar's superview (which I'm assuming is window-sized) that is the same size as the window.
Set that view's backgroundColor to [UIColor blackColor], and its alpha to 0.0.
In your button handler do something like the above (assuming your new UIView is blackView and ANIMATION_DURATION is your desired animation time in seconds).
Then, add your new view on top.
EDIT: too quick for me Eiko! Also, code at the top since the ordered list seems to screw around with the code formatting - sorry the answer reads a little odd.
You can add a black coloured UIView in screen size on top of your current view, and animate its alpha from 0 to 1. When the animation is done, add your new view. You can remove the black one then. Animate from 1 to 0 for the opposite effect - going from black to the content).
I am working to force a view into landscape mode, and have picked up all kinds of cool tips to make this happen, but am stuck on one item that is left on the screen.
I have my XIB file laid out in landscape, and in my code I create the view controller normally:
RedeemViewController *aViewController = [[RedeemViewController alloc] initWithNibName:#"RedeemViewController" bundle:nil];
aViewController.hidesBottomBarWhenPushed = YES;
aViewController.wantsFullScreenLayout = YES;
[[self navigationController] pushViewController:aViewController animated:YES];
Inside the controller viewDidLoad I complete the following:
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeRight];
[[self navigationController] setNavigationBarHidden:YES animated:YES];
[UIView beginAnimations:#"View Flip" context:nil];
[UIView setAnimationDuration:.75];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
if (self.interfaceOrientation == UIInterfaceOrientationPortrait) {
self.view.transform = CGAffineTransformIdentity;
self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(90));
self.view.bounds = CGRectMake(0.0, 0.0, 480, 320);
}
[UIView commitAnimations];
What I end up with is a perfectly rotated view, with a grey vertical bar on the left side (see pic).
alt text http://taxhelp.net/vert_bar.png
So to the question, how do I get rid of the bar?
Edit: I am pretty sure this is the navigation bar that is not being hidden.
This is a duplicate of another post, with some modified code, the other question was being answered with the bug.
Remove the navigation bar from Interface Builder or see if its being left behind by one of your other controllers.
I lost a few days on a similar problem because I didn't realize that one of my navbars was not being removed when another controller with a nav bar was being pushed onto another controller with a navbar. ;)