I have created a UIView.I want to subview the view to the appdelegate window
UIView *newView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 1048, 748)];
AppDelegate *appdelegate = [[UIApplication sharedApplication]delegate];
[appdelegate.window addSubview:newView];
This helps me to subview a view to the window.But the view is in portrait mode.I need the view to be in landscape mode .How can I set the view to the landscape mode? and I want the Red color view to completely cover the white view.how can I do so?
RedColor is the newView
white is present viewController
if we add any object to window and then we want to change the orientation then we must use transform methods.
#define DegreesToRadians(degrees) (degrees *M_PI /180)
add above line
CGAffineTransform newTransform;
UIDeviceOrientation orientation = [UIDevice currentDevice].orientation;
switch (orientation)
{
case UIInterfaceOrientationPortraitUpsideDown:
newTransform = CGAffineTransformMakeRotation(-DegreesToRadians(180));
txt.transform = newTransform;
txt.frame = CGRectMake(0, 0, 320, 480);
break;
case UIInterfaceOrientationLandscapeLeft:
newTransform = CGAffineTransformMakeRotation(DegreesToRadians(-90));
txt.transform = newTransform;
txt.frame = CGRectMake(0, 0, 320, 480);
break;
case UIInterfaceOrientationLandscapeRight:
newTransform = CGAffineTransformMakeRotation(DegreesToRadians(90));
txt.transform = newTransform;
txt.frame = CGRectMake(0, 0, 320, 480);
break;
default:
newTransform = CGAffineTransformMakeRotation(-DegreesToRadians(0));
txt.transform = newTransform;
txt.frame = CGRectMake(0, 0, 320, 480);
break;
}
here txt is object name,try in this way.
Related
I want to add some UILabels on top of my UIImagePickerController's custom OverlayView but can't seem to get it working.
Here is my code.
-(IBAction)getPhoto:(id)sender{
picker = [[UIImagePickerController alloc] init];
picker.allowsEditing = NO;
picker.sourceType = UIImagePickerControllerSourceTypeCamera ;
picker.showsCameraControls = NO;
self.picker.navigationBarHidden = YES;
self.picker.toolbarHidden = YES;
OverlayView = [[OverlayView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width,1024)];
UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(OverlayView.frame.size.height/2, OverlayView.frame.size.width/2, 30, 100)];
label.textColor = [UIColor whiteColor];
label.text = #"find Me";
[self.OverlayView addSubview:label];
[self.OverlayView bringSubviewToFront:label];
picker.cameraOverlayView = OverlayView;
CGSize screenSize = [[UIScreen mainScreen] bounds].size; // 320 x 568
float scale = screenSize.height / screenSize.width*3/4; // screen height divided by the pickerController height ... or: 568 / ( 320*4/3 )
CGAffineTransform translate=CGAffineTransformMakeTranslation(0,(screenSize.height - screenSize.width*4/3)*0.5);
CGAffineTransform fullScreen=CGAffineTransformMakeScale(scale, scale);
picker.cameraViewTransform =CGAffineTransformConcat(fullScreen, translate);
[self presentViewController: picker animated:YES completion:NULL];
}
the overview shows up and it is full screen but no label
any ideas
Your label is just offscreen, check its frame
You can place it for instance like that, at least it will be visible
self.overlayView = [[OverlayView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(self.overlayView.frame.size.width/2, self.overlayView.frame.size.height/2, 30, 100)];
when i shift from portrait mode to landscape mode the view should expand widely but the length should be the same and in scrollview so that when i scroll the fullcontents should be displayed:
if (([[UIDevice currentDevice]orientation] == UIInterfaceOrientationLandscapeLeft) ||
([[UIDevice currentDevice]orientation] == UIInterfaceOrientationLandscapeRight))
{
UIScrollView *scrollView=[[UIScrollView alloc] init];
UIView *view1 = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 480, 480)];
view1 = self.view;
[scrollView addSubview:view1];
scrollView.frame = CGRectMake(0, 0, 480, 480);
scrollView.contentSize = CGSizeMake(480, 480);
scrollView.delegate = self;
scrollView.alwaysBounceVertical = YES;
[self.view addSubview:scrollView];
}
if(([[UIDevice currentDevice]orientation] == UIInterfaceOrientationLandscapeLeft) || ([[UIDevice currentDevice]orientation] == UIInterfaceOrientationLandscapeRight)) {
UIScrollView * scrollView=[[UIScrollView alloc] init]; UIView *view1 = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 480, 480)];
view1 = self.view; [scrollView addSubview:view1]; scrollView.frame = CGRectMake(0, 0, 480, 480);
scrollView.contentSize = CGSizeMake(480, 480); scrollView.delegate = self;
scrollView.alwaysBounceVertical = YES; [self.view addSubview:scrollView];
}
Please update your question with more information for example - what is and is not working? Don't add updates as comments, edit your question.
In your existing code, at least this is wrong/confused:
UIView *view1 = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 480, 480)];
view1 = self.view;
you are assigning a pointer to a new view in the first line, then reassigning it to your existing self.view in the second line. Then here:
[self.view addSubview:scrollView];
you are adding a scrollview containing a content view to that same content view. That's not going to work.
As a cleaner solution, why don't you set up your scrollview/subview combo for both orientations. Then when you rotate, you just need to alter your scrollview's contentsize.
For the normal upright orientation:
self.scrollview.contentSize = self.scrollview.bounds.size;
For landscape:
self.scrollview.contentSize =
CGSizeMake(self.scrollView.bounds.size.width, self.contentView.bounds.size.height
(assuming your content is in a view called contentView contained inside your scrollView)
You should be able to get the contentOffset to work correctly for both orientations in the storyboard, but if not your can set it in code for each orientation.
This code does the following: It takes a 'snapshot' of a NavigationController meant to disappear. Then the snapshot is added to the view of a container view controller, slides away and reveals the new NavigationController. To create the 'Pop-Out-Effect' the midAnFrame makes the view a bit bigger than the actual view. After that postAnFrame provides the sliding out of the container view's frame. Works great, the only problem is that the subviews of animationContainer don't resize like their superView during the animation.
- (void)bringUpSettingsNavigationController {
CGFloat gradientWidth = 20;
CGFloat frameIncrease = 10;
CGRect preAnFrame = CGRectMake(- gradientWidth, 0, self.view.frame.size.width + gradientWidth, self.view.frame.size.height);
CGRect midAnFrame = CGRectMake(-(frameIncrease + gradientWidth), - frameIncrease, preAnFrame.size.width + (2*frameIncrease), preAnFrame.size.height + (2*frameIncrease));
CGRect postAnFrame = CGRectMake(midAnFrame.size.width, midAnFrame.origin.y, midAnFrame.size.width, midAnFrame.size.height);
UIView *animationContainer = [[UIView alloc]initWithFrame:preAnFrame];
animationContainer.backgroundColor = [UIColor clearColor];
animationContainer.autoresizesSubviews = YES;
self.topImageView = [[UIImageView alloc]initWithImage:[self topImageFromView:self.view]];
self.topImageView.frame = CGRectMake(gradientWidth, 0, preAnFrame.size.width - gradientWidth, preAnFrame.size.height);
[animationContainer addSubview:self.topImageView];
self.topImageView.clipsToBounds = YES;
UIView *gradientView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, gradientWidth, preAnFrame.size.height)];
CAGradientLayer *gradientLayer = [CAGradientLayer layer];
gradientLayer.frame = gradientView.bounds;
gradientLayer.colors = [NSArray arrayWithObjects:(id)[[UIColor clearColor] CGColor], (id)[[UIColor colorWithWhite:0 alpha:.5] CGColor], nil];
gradientLayer.startPoint = CGPointMake(0, 0.5);
gradientLayer.endPoint = CGPointMake(1.0, 0.5);
[gradientView.layer insertSublayer:gradientLayer atIndex:0];
gradientView.backgroundColor = [UIColor clearColor];
[animationContainer addSubview:gradientView];
gradientView.clipsToBounds = YES;
[self.view addSubview:animationContainer];
BYSettingsNavigationController *settingsNavigationController = [[BYSettingsNavigationController alloc]initWithRootViewController:[[BYSettingsViewController alloc]init]];
[self addChildViewController:settingsNavigationController];
settingsNavigationController.view.frame = self.view.bounds;
[self.view insertSubview:settingsNavigationController.view belowSubview:animationContainer];
[settingsNavigationController didMoveToParentViewController:self];
[UIView animateWithDuration:0.2 animations:^{
animationContainer.frame = midAnFrame;
} completion:^(BOOL finished) {
[UIView animateWithDuration:.5 animations:^{
animationContainer.frame = postAnFrame;
} completion:^(BOOL finished) {
[self.topImageView removeFromSuperview];
[gradientView removeFromSuperview];
self.topImageView = nil;
}];
}];
[self.currentNavigationController willMoveToParentViewController:nil];
[self.currentNavigationController.view removeFromSuperview];
[self.currentNavigationController removeFromParentViewController];
}
Thanks in advance for your ideas and have a great 2013!
Dario
What your doing is not zooming in , your just changing the frame size.
To zoom in you need to change the transformation of the view.
What you need to do is something along this line:
view.transform = CGAffineTransformMakeScale (2.0 , 2.0);
for example to zoom X2
I used the below codes
CGRect scrollserviceViewFrame1 = CGRectMake(60,610, 650, 150);
//CGRect scrollViewFrame =[[UIScreen mainScreen] applicationFrame];
//UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:scrollViewFrame];
UIScrollView *servicescrollView1 = [[UIScrollView alloc] initWithFrame:scrollserviceViewFrame1];
[self.view addSubview:servicescrollView1];
//scrollView.backgroundColor=[UIColor greenColor];
[servicescrollView1 setBackgroundColor:[UIColor redColor]];
[servicescrollView1 setCanCancelContentTouches:NO];
//scrollView.indicatorStyle = UIScrollViewIndicatorStyleBlack;
servicescrollView1.clipsToBounds = YES; // default is NO, we want to restrict drawing within our scrollview
servicescrollView1.scrollEnabled = YES;
servicescrollView1.autoresizesSubviews=YES;
[servicescrollView1 setContentSize: CGSizeMake(1050, 100)];
//scrollView.delegate = self;
servicescrollView1.pagingEnabled = YES;
servicescrollView1.showsHorizontalScrollIndicator = NO;
[servicescrollView1 scrollRectToVisible:CGRectMake(servicescrollView1.frame.size.width, 0, self.view.frame.size.width, self.view.frame.size.height) animated:YES];
NSLog(#" scroll view width :%i ",servicescrollView1.frame.size.width);
NSLog(#"scroll view height :%i ",self.view.frame.size.height);
NSLog(#"self view width :%i",self.view.frame.size.width);
CGRect CGRectZero = CGRectMake(60,710,200, 100);
UIView* myserviceView1 = [[UIView alloc] initWithFrame: CGRectZero];
myserviceView1.backgroundColor=[UIColor blackColor];
[servicescrollView1 addSubview:myserviceView1];
[myserviceView1 release];
[servicescrollView1 release];
The scroll view is created , butcannot add the UIVIew to scrollview...
Any suggestions for solving this query???
Thanks in advance
Near the bottom of your code where you create myserviceView1, you (attempt to) reset a constant (CGRectZero).
And then when you create your myserviceView1 UIView, you're giving it a frame size of {0, 0, 0, 0}.
I have two images:
Help-Portrait.png (320 x 480)
Help-Landscape.png (480 x 320)
When a user clicks the help button on any view, they need to be presented with the correct image, which should also rotate when the device does. I have tried adding the imageView to both the window, and the navigation controller view.
For some reason I am having issues with this.
Could anyone shed light on what I am doing wrong?
UIImage *image = nil;
CGRect frame;
if (UIInterfaceOrientationIsPortrait([[UIApplication sharedApplication] statusBarOrientation])) {
image = [UIImage imageNamed:#"Help-Portrait.png"];
frame = CGRectMake(0, 0, 320, 480);
} else {
image = [UIImage imageNamed:#"Help-Landscape.png"];
frame = CGRectMake(0, 0, 480, 320);
}
if (!helpImageView) {
helpImageView = [[UIImageView alloc] initWithFrame:frame];
helpImageView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
helpImageView.image = image;
}
[[UIApplication sharedApplication] setStatusBarHidden:YES];
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(helpImageTapped:)];
helpImageView.userInteractionEnabled = YES;
[helpImageView addGestureRecognizer:tap];
[self.view addSubview:helpImageView];
[tap release];
willRotateToInterfaceOrientation:
if(helpImageView) {
[(id)[UIApplication sharedApplication] setStatusBarHidden:NO animated:YES];
if (UIInterfaceOrientationIsPortrait(toInterfaceOrientation)) {
helpImageView.image = [UIImage imageNamed:#"Help-Portrait.png"];
} else {
helpImageView.image = [UIImage imageNamed:#"Help-Landscape.png"];
}
}
When you rotate the device the image and the frame don't change, and you end up with two thirds of the portrait image displayed on the left part of the screen.
What I want is it for it to show the correct image for the orientation, the right way up. Also I would like animation for the image rotation, but thats a side issue
The place where you need to adjust your button image is in your ViewController's shouldAutorotateToInterfaceOrientation method (documentation linked for you).
Do something like:
- (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation
{
UIImage *image = NULL;
if (UIInterfaceOrientationIsPortrait(interfaceOrientation))
{
image = [UIImage imageNamed:#"Help-Portrait.png"];
} else {
image = [UIImage imageNamed:#"Help-Landscape.png"];
}
[yourButton setImage: image forState: UIControlStateNormal]
return YES;
}
Michael Dautermann's answer looks to have almost all the answer, but I'm opposed to using shouldAutorotateToInterfaceOrientation. This method is designed only to determine if a rotation should or should not occur, nothing else.
You should use either didRotateFromInterfaceOrientation: willAnimateRotationToInterfaceOrientation:duration instead.
didRotateFromInterfaceOrientation: - interfaceOrientation is already set on your UIViewController so you can get the current orientation. In this case the rotation animation is already complete.
willAnimateRotationToInterfaceOrientation:duration - The benefit of this method is execution time. You are inside the rotation animation so you won't have the less than pretty effects which happens when you change UI either after the rotation animation completes.
Got it working, with this code:
- (void)showHelpImage {
NSString *imageName = #"Help_Portrait.png";
CGRect imageFrame = CGRectMake(0, 0, 320, 480);
helpImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:imageName]];
helpImageView.frame = imageFrame;
[self.view addSubview:helpImageView];
[self updateHelpImageForOrientation:self.interfaceOrientation];
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(helpImageTapped:)];
helpImageView.userInteractionEnabled = YES;
[helpImageView addGestureRecognizer:tap];
[self.view addSubview:helpImageView];
[tap release];
}
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
[self updateHelpImageForOrientation:toInterfaceOrientation];
}
- (void)updateHelpImageForOrientation:(UIInterfaceOrientation)orientation {
NSString *imageName = nil;
CGRect imageFrame = helpImageView.frame;
if (orientation == UIInterfaceOrientationPortrait || orientation == UIInterfaceOrientationPortraitUpsideDown) {
imageName = #"Help_Portrait.png";
imageFrame = CGRectMake( 0, 0, 320, 480);
} else if (orientation == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight) {
imageName = #"Help_Landscape.png";
imageFrame = CGRectMake( 0, 0, 480, 320);
}
helpImageView.image = [UIImage imageNamed:imageName];
helpImageView.frame = imageFrame;
}
Got the idea from:
http://www.dobervich.com/2010/10/22/fade-out-default-ipad-app-image-with-proper-orientation/