I'm having trouble getting this animation for swiping up or down to work.
Here is my code so far. It only animates but object does not work when swiping on screen.
ViewController.m
// notificationView
//
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
NotificationView *notifications= [[NotificationView alloc] initWithFrame:CGRectMake(200,200,200,200)];
notifications.backgroundColor =[ UIColor blueColor];
[self.view addSubview:notifications];
UISwipeGestureRecognizer *swipeUp = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:
#selector(swipeUp:)];
[notifications addGestureRecognizer:swipeUp];
swipeUp.direction=UISwipeGestureRecognizerDirectionUp;
UISwipeGestureRecognizer *swipeDown=[[UISwipeGestureRecognizer alloc]initWithTarget:self action:
#selector(swipeDown:)];
swipeDown.direction=UISwipeGestureRecognizerDirectionDown;
[notifications addGestureRecognizer:swipeDown];
[UIView animateWithDuration:0.5 animations:^{
notifications.center=CGPointMake(150,150);}]; };
-(void) swipeUp:(id) sender {
UISwipeGestureRecognizer *swipe = (UISwipeGestureRecognizer *) sender;}
-(void) swipeDown:(id) sender { }
#end
Try this its work perfect.
- (void)viewDidLoad {
[super viewDidLoad];
notifications = [[UIView alloc] initWithFrame:CGRectMake(200,200,200,200)];
notifications.backgroundColor =[ UIColor blueColor];
[self.view addSubview:notifications];
UISwipeGestureRecognizer *swipeUp = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:
#selector(swipeUp:)];
[notifications addGestureRecognizer:swipeUp];
swipeUp.direction=UISwipeGestureRecognizerDirectionUp;
UISwipeGestureRecognizer *swipeDown=[[UISwipeGestureRecognizer alloc]initWithTarget:self action:
#selector(swipeDown:)];
swipeDown.direction=UISwipeGestureRecognizerDirectionDown;
[notifications addGestureRecognizer:swipeDown];
[UIView animateWithDuration:0.5 animations:^{
notifications.center=CGPointMake(150,150);
}];
}
-(void) swipeUp:(id) sender {
[self animationOfObject:150 yVlaue:150];
}
-(void) swipeDown:(id) sender {
[self animationOfObject:150 yVlaue:300];
}
-(void)animationOfObject:(float)xValue yVlaue:(float)yValue
{
[UIView animateWithDuration:0.5 animations:^{
notifications.center=CGPointMake(xValue,yValue);
}];
}
Related
I created a UIView in a separate class, and I am trying to animate it in my ViewController. It is supposed to work like the notification screen on the iPhone that appears when you swipe down, and then you can swipe it back up.
I can get my custom view to swipe down, but when I try to swipe it back up, the swipe up gesture is not being initiated.
I am a novice, so any help is greatly appreciated!
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
NotificationView *notificationView = [[NotificationView alloc]init];
[self.view addSubview:notificationView];
UISwipeGestureRecognizer *swipeDownGestureRecognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:#selector(swipeDown:)];
swipeDownGestureRecognizer.direction = UISwipeGestureRecognizerDirectionDown;
UISwipeGestureRecognizer *swipeUpGestureRecognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:#selector(swipeUp:)];
swipeUpGestureRecognizer.direction = UISwipeGestureRecognizerDirectionUp;
[self.view addGestureRecognizer:swipeDownGestureRecognizer];
[notificationView addGestureRecognizer:swipeUpGestureRecognizer];
}
-(void) swipeUp: (UISwipeGestureRecognizer *) recognizer{
UIView *notificationView = [[NotificationView alloc]init];
notificationView = recognizer.view;
[UIView animateWithDuration:2.0 animations:^{
notificationView.frame = CGRectMake(0, 0, 414, 723);
}];
}
-(void) swipeDown: (UISwipeGestureRecognizer *) recognizer{
UIView *notificationView = [[NotificationView alloc]init];
notificationView = recognizer.view;
[UIView animateWithDuration:2.0 animations:^{
notificationView.frame = CGRectMake(0, 723, 414, 723);
}];
}
notificationView in ViewDidLoad should be assigned to the viewControllers property, and you should not alloc init views in the gesture recognizer actions.
You should create a property with your notificationView and keep a reference to it, and not create a new one over and over.
#property (strong, nonatomic) NotificationView *notificationView;
And in your viewDidLoad:
_notificationView = [[NotificationView alloc] init];
// Important line to solve your problems on gestures not fired off on your notification view
_notificationView.userInteractionEnabled = YES;
[self.view addSubview:_notificationView];
and simply change:
-(void)swipeDown:(UISwipeGestureRecognizer *)recognizer {
[UIView animateWithDuration:2.0 animations:^{
_notificationView.frame = CGRectMake(0, 723, 414, 723);
}];
}
You should look into a tutorial on how properties work.
And you should look into This Thread to avoid animations getting called multiple times etc by handling gesture states.
I want to implement slide menu in my iOS app like drawer (Andriod). I went through a tutorial, but all of them are using third party libraries. Is there any possibility to create a custom slide menu. I tried to create it with the following code, but it's only working with xib file:
- (IBAction)sidemenu:(id)sender
{
[UIView animateWithDuration:0.50f animations:^{
view.frame = self.view.frame;
} completion:^(BOOL finished) {
swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(SwipGestureLeftAction:)];
swipeLeft.direction = UISwipeGestureRecognizerDirectionLeft;
[self.view addGestureRecognizer:swipeLeft];
}];
}
- (void)SwipGestureAction
{
UISwipeGestureRecognizer *swiperight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(SwipGestureRightAction:)];
swiperight.direction = UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:swiperight];
}
#pragma mark AddSwipeGestureLeftAndRight
- (void)SwipGestureRightAction:(UISwipeGestureRecognizer *)swipeRight
{
[UIView animateWithDuration:0.50f animations:^{
view.frame = self.view.frame;
} completion:^(BOOL finished) {
swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(SwipGestureLeftAction:)];
swipeLeft.direction = UISwipeGestureRecognizerDirectionLeft;
[self.view addGestureRecognizer:swipeLeft];
}];
}
- (void)SwipGestureLeftAction:(UISwipeGestureRecognizer *)swipeRight
{
[UIView animateWithDuration:0.50f animations:^{
[view setFrame:CGRectMake(self.view.frame.origin.x - self.view.frame.size.width, self.view.frame.origin.y, self.view.frame.size.width, self.view.frame.size.height)];
} completion:^(BOOL finished){
[self.view removeGestureRecognizer:swipeLeft];
}];
}
Here is what I have for you:
I made a super class for all my slide menus in all projects. It manages the showing and hiding of the slide menu, and handles orientation changes. It slides in from left on top of the current view, and it partially obscures the remainder of the view with a dark transparent background.
If you ever need other behaviour (like pushing out the current view) just override the animation part.
My slide menu is a Singleton because in our applications we only use one slide menu on every screen.
#import <UIKit/UIKit.h>
#interface IS_SlideMenu_View : UIView <UIGestureRecognizerDelegate>
{
UIView* transparentBgView;
BOOL hidden;
int lastOrientation;
}
#property (strong, nonatomic) UIView *menuContainerV;
+ (id)sharedInstance;
- (BOOL)isShown;
- (void)hideSlideMenu;
- (void)showSlideMenu;
#end
#import "IS_SlideMenu_View.h"
#implementation IS_SlideMenu_View
+ (id)sharedInstance
{
static id _sharedInstance = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
_sharedInstance = [[[self class] alloc] init];
});
return _sharedInstance;
}
- (instancetype)initWithFrame:(CGRect)frame
{
frame = [[[UIApplication sharedApplication] delegate] window].frame;
self = [super initWithFrame:frame];
if (self) {
self.backgroundColor = [UIColor clearColor];
transparentBgView = [[UIView alloc] initWithFrame:frame];
[transparentBgView setBackgroundColor:[UIColor colorWithRed:0 green:0 blue:0 alpha:0.6]];
[transparentBgView setAlpha:0];
transparentBgView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(gestureRecognized:)];
UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(gestureRecognized:)];
[transparentBgView addGestureRecognizer:tap];
[transparentBgView addGestureRecognizer:pan];
[self addSubview:transparentBgView];
frame.size.width = 280;
self.menuContainerV = [[UIView alloc] initWithFrame:frame];
CALayer *l = self.menuContainerV.layer;
l.shadowColor = [UIColor blackColor].CGColor;
l.shadowOffset = CGSizeMake(10, 0);
l.shadowOpacity = 1;
l.masksToBounds = NO;
l.shadowRadius = 10;
self.menuContainerV.autoresizingMask = UIViewAutoresizingFlexibleHeight;
[self addSubview: self.menuContainerV];
hidden = YES;
}
//----- SETUP DEVICE ORIENTATION CHANGE NOTIFICATION -----
UIDevice *device = [UIDevice currentDevice];
[device beginGeneratingDeviceOrientationNotifications];
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc addObserver:self selector:#selector(orientationChanged:) name:UIDeviceOrientationDidChangeNotification object:device];
lastOrientation = [[UIDevice currentDevice] orientation];
return self;
}
//********** ORIENTATION CHANGED **********
- (void)orientationChanged:(NSNotification *)note
{
UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
if(orientation == UIDeviceOrientationPortrait || orientation == UIDeviceOrientationLandscapeLeft || orientation == UIDeviceOrientationLandscapeRight){
NSLog(#"%ld",orientation);
if(!hidden && lastOrientation != orientation){
[self hideSlideMenu];
hidden = YES;
lastOrientation = orientation;
}
}
}
- (void)showSlideMenu {
UIWindow* window = [[[UIApplication sharedApplication] delegate] window];
self.frame = CGRectMake(0, 0, window.frame.size.width, window.frame.size.height);
[self.menuContainerV setTransform:CGAffineTransformMakeTranslation(-window.frame.size.width, 0)];
[window addSubview:self];
// [[UIApplication sharedApplication] setStatusBarHidden:YES];
[UIView animateWithDuration:0.5 animations:^{
[self.menuContainerV setTransform:CGAffineTransformIdentity];
[transparentBgView setAlpha:1];
} completion:^(BOOL finished) {
NSLog(#"Show complete!");
hidden = NO;
}];
}
- (void)gestureRecognized:(UIGestureRecognizer *)recognizer
{
if ([recognizer isKindOfClass:[UITapGestureRecognizer class]]) {
[self hideSlideMenu];
} else if ([recognizer isKindOfClass:[UIPanGestureRecognizer class]]) {
static CGFloat startX;
if (recognizer.state == UIGestureRecognizerStateBegan) {
startX = [recognizer locationInView:self.window].x;
} else
if (recognizer.state == UIGestureRecognizerStateChanged) {
CGFloat touchLocX = [recognizer locationInView:self.window].x;
if (touchLocX < startX) {
[self.menuContainerV setTransform:CGAffineTransformMakeTranslation(touchLocX - startX, 0)];
}
} else
if (recognizer.state == UIGestureRecognizerStateEnded) {
[self hideSlideMenu];
}
}
}
- (void)hideSlideMenu
{
UIWindow* window = [[[UIApplication sharedApplication] delegate] window];
window.backgroundColor = [UIColor clearColor];
[UIView animateWithDuration:0.5 animations:^{
[self.menuContainerV setTransform:CGAffineTransformMakeTranslation(-self.window.frame.size.width, 0)];
[transparentBgView setAlpha:0];
} completion:^(BOOL finished) {
[self removeFromSuperview];
[self.menuContainerV setTransform:CGAffineTransformIdentity];
// [[UIApplication sharedApplication] setStatusBarHidden:NO];
hidden = YES;
NSLog(#"Hide complete!");
}];
}
- (BOOL)isShown
{
return !hidden;
}
#end
Subclasses only need to add subviews to the menuContainerV view, and manage them.
An example:
I created a subclass that has an header view and a table view as its content. I created the content view in a xib, and the owner of the xib is this subclass. This way I can bind outlets to the xib.
#import "IS_SlideMenu_View.h"
#interface CC_SlideMenu_View : IS_SlideMenu_View<UITableViewDelegate, UITableViewDataSource>
#property (weak, nonatomic) IBOutlet UIView *headerView;
#property (weak, nonatomic) IBOutlet UITableView *tableView;
...
#end
When the slide menu gets instantiated I load the xib and add the content view to the menuContainerV view.
#import "CC_SlideMenu_View.h"
#implementation CC_SlideMenu_View
- (instancetype)init
{
self = [super init];
if (self) {
UIView *v = [[[NSBundle mainBundle] loadNibNamed:#"CC_SlideMenu_View" owner:self options:nil] firstObject];
v.frame = self.menuContainerV.bounds;
[self.menuContainerV addSubview:v];
self.tableView.backgroundColor = [UIColor darkGrayColor];
}
return self;
}
...
#end
The result is something like this.
I have a uiimageview in my detail view, and I want to make it so that when I tap on the image, it opens the image full screen. However, my code below doesn't seem to be working. Any idea what I seem to be doing wrong?
FullViewController.h
#interface FullArticleViewController : UIViewController <UINavigationControllerDelegate, UIImagePickerControllerDelegate, UIGestureRecognizerDelegate>
{
IBOutlet UITapGestureRecognizer *tap;
IBOutlet UIScrollView *scroller;
IBOutlet UILabel *firstnameLabel;
IBOutlet UILabel *bodyLabel;
IBOutlet UILabel *descriptionLabel;
BOOL isFullScreen;
CGRect prevFrame;
}
FullViewController.m
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
if ([[articleDetail objectForKey:#"ytID"] isEqualToString:#"none"]) {
featureImage.userInteractionEnabled = YES;
NSString *imageUrl = [NSString stringWithFormat:#"image/%#",cellImageLink];
[self.featureImage sd_setImageWithURL:[NSURL URLWithString:imageUrl]];
[scroller setScrollEnabled:YES];
featureImage.userInteractionEnabled = YES;
[scroller bringSubviewToFront:featureImage];
UITapGestureRecognizer *tapgesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(imgToFullScreen)];
[tapgesture setNumberOfTapsRequired:1];
[featureImage addGestureRecognizer:tap];
}
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch;
{
BOOL shouldReceiveTouch = YES;
if (gestureRecognizer == tap) {
shouldReceiveTouch = (touch.view == featureImage);
}
return shouldReceiveTouch;
}
-(void)imgToFullScreen{
if (!isFullScreen) {
[UIView animateWithDuration:0.5 delay:0 options:0 animations:^{
//save previous frame
prevFrame = featureImage.frame;
[featureImage setFrame:[[UIScreen mainScreen] bounds]];
}completion:^(BOOL finished){
isFullScreen = true;
}];
return;
} else {
[UIView animateWithDuration:0.5 delay:0 options:0 animations:^{
[featureImage setFrame:prevFrame];
}completion:^(BOOL finished){
isFullScreen = false;
}];
return;
}
}
Edit: See code updated above, and hierarchy below
Try this in your viewDidLoad: method:
[featureImage setUserInteractionEnables:YES];
UITapGestureRecognizer *tapgesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(imgToFullScreen)];
[tapgesture setNumberOfTapsRequired:1];
[featureImage addGestureRecognizer:tapgesture];
In the code below, the subview (cloud) oscillates on the location given.
On tapping that subview while oscillation, it moves out of the bounds to the right side, then moves in from the left.
But the tap gesture is not working on the whole subview, it works only on the right-side end of the oscillating subView.
I want slide out and in of cloud to work, whenever the whole subview of cloud is tapped.
Below is code of .h and .m file respectively.
File : OscillatingCloudsViewController.h
#import <UIKit/UIKit.h>
#import <QuartzCore/QuartzCore.h>
#interface OscillatingCloudsViewController : UIViewController
{
IBOutlet UIView *movingCloud1;
UIImage *cldImg;
}
- (IBAction)animateCloud;
- (IBAction)animateCloudBegin;
#end
File : OscillatingCloudsViewController.m
#import "OscillatingCloudsViewController.h"
#implementation OscillatingCloudsViewController
- (void) viewWillAppear:(BOOL)animated
{
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(tapGestureAnimateCloud)];
tapGesture.numberOfTapsRequired = 1;
tapGesture.numberOfTouchesRequired = 1;
tapGesture.cancelsTouchesInView = YES;
[movingCloud1 addGestureRecognizer:tapGesture];
movingCloud1.userInteractionEnabled = YES;
[super viewWillAppear:
animated];
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self animateCloud];
}
- (IBAction) animateCloud
{
cldImg = [UIImage imageNamed:#"cloud1.png"];
movingCloud1=[[UIView alloc]initWithFrame:CGRectMake(50, 50, cldImg.size.width, cldImg.size.height)];
[movingCloud1 setBackgroundColor:[UIColor colorWithPatternImage:cldImg]];
[self.view addSubview:movingCloud1];
movingCloud1.userInteractionEnabled = YES;
[self viewWillAppear:YES];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:5];
[UIView setAnimationRepeatCount:HUGE_VALF];
[UIView setAnimationRepeatAutoreverses:YES];
CGPoint pos = movingCloud1.center;
pos.x = 220.0f;
movingCloud1.center = pos;
[UIView commitAnimations];
}
- (void) animateCloudHidden
{
[movingCloud1 setHidden:YES];
}
- (IBAction)animateCloudBegin
{
movingCloud1.frame = CGRectMake(-100, 50, cldImg.size.width, cldImg.size.height);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[UIView setAnimationRepeatCount:1];
[UIView setAnimationRepeatAutoreverses:NO];
CGPoint pos = movingCloud1.center;
pos.x = cldImg.size.width;
movingCloud1.center = pos;
[UIView commitAnimations];
}
- (IBAction) tapGestureAnimateCloud
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:2];
[UIView setAnimationRepeatCount:1];
[UIView setAnimationRepeatAutoreverses:NO];
movingCloud1.center = CGPointMake(1100.0f, 81.5f);
[UIView commitAnimations];
[self performSelector:#selector(animateCloudBegin) withObject:nil afterDelay:2.0f];
[self performSelector:#selector(animateCloudHidden) withObject:nil afterDelay:3.0f];
[self performSelector:#selector(animateCloud) withObject:nil afterDelay:3.0f];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#end
I have understood your problem. In viewwillApper you are assing the Gesture and in inside animateCloud method your allocating your movingCloud1 UIView.
For implementing this you need to fallow the bello steps.
In ViewdidLoad you need to allocate and add the movingCloud1 view to you self.view.
After add the Gesture to movingCloud1 view.
Your tapGesture will work now. So inside your tapgesture method just you need to set the animation for your movingCloud1 view
I have a lot of trouble to accomplish this task on an ipad : when double tape on an image switch this image to full screen and when double taping again come back to the original display, same thing using pinching. I'm using UIGestureRecognizer to try to do this. Thanks for your help.
GesturesViewController.h
#import <UIKit/UIKit.h>
#interface GesturesViewController : UIViewController
<UIActionSheetDelegate>{
IBOutlet UIImageView *imageView;
}
#property (nonatomic, retain) UIImageView *imageView;
#end
GesturesViewController.m
#import "GesturesViewController.h"
#import "GesturesAppDelegate.h"
#implementation GesturesViewController
#synthesize imageView;
CGRect originalFrame,fullScreenFrame;
BOOL isFullScreenMode;
- (void)viewDidLoad {
// Loading test image
imageView.image = [UIImage imageNamed:#"image1.jpg"];
//---tap gesture---
isFullScreenMode = NO;
originalFrame = CGRectMake(imageView.frame.origin.x,imageView.frame.origin.y,imageView.frame.size.width,imageView.frame.size.height);
//changes
fullScreenFrame = CGRectMake(0,0,768,1004);
UITapGestureRecognizer *tapGesture =
[[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(handleTapGesture:)];
tapGesture.numberOfTapsRequired = 2;
[imageView addGestureRecognizer:tapGesture];
[tapGesture release];
//---pinch gesture---
UIPinchGestureRecognizer *pinchGesture =
[[UIPinchGestureRecognizer alloc] initWithTarget:self action:#selector(handlePinchGesture:)];
[imageView addGestureRecognizer:pinchGesture];
[pinchGesture release];
[super viewDidLoad];
}
//---handle tap gesture---
-(IBAction) handleTapGesture:(UIGestureRecognizer *) sender {
// HOW TO ACCOMPLISH THIS PART
if (isFullScreenMode)
[imageView setFrame:originalFrame];
else
[imageView setFrame:fullScreenFrame];
[imageView setCenter:CGPointMake(self.view.frame.size.width/2,self.view.frame.size.height/2)];
isFullScreenMode = !isFullScreenMode;
NSLog(#"Image View : %#",imageView);
}
//---handle pinch gesture---
-(IBAction) handlePinchGesture:(UIGestureRecognizer *) sender {
CGFloat factor = [(UIPinchGestureRecognizer *) sender scale];
if (sender.state == UIGestureRecognizerStateEnded){
// HOW TO ACCOMPLISH THIS ---
if (factor > 1 && !isFullScreenMode) {
//---pinching in---
[imageView setFrame:fullScreenFrame];
} else {
//---pinching out---
[imageView setFrame:originalFrame];
}
isFullScreenMode = !isFullScreenMode;
[imageView setCenter:CGPointMake(self.view.frame.size.width/2,self.view.frame.size.height/2)];
}
NSLog(#"Image View : %#",imageView);
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[images release];
[imageView release];
[super dealloc];
}
#end
Thanks.
- (void)toggleZoom:(UITapGestureRecognizer *)gestureRecognizer
{
if (proxyView)
{
CGRect frame =
[proxyView.superview
convertRect:self.view.frame
fromView:self.view.window];
self.view.frame = frame;
CGRect proxyViewFrame = proxyView.frame;
[proxyView.superview addSubview:self.view];
[proxyView removeFromSuperview];
[proxyView autorelease];
proxyView = nil;
self.view.frame = proxyViewFrame;
}
else
{
proxyView = [[UIView alloc] initWithFrame:self.view.frame];
proxyView.hidden = YES;
proxyView.autoresizingMask = self.view.autoresizingMask;
[self.view.superview addSubview:proxyView];
CGRect frame =
[self.view.window
convertRect:self.view.frame
fromView:proxyView.superview];
[self.view.window addSubview:self.view];
self.view.frame = frame;
self.view.frame = self.view.window.bounds;
}
}
I have selected only necessary portion of the code...... its from ZoomingViewController....
If you see its same as we have discussed earlier..... but with few improvements.......
For doing this you have to first store your original frame size somewhere globally so that you can reassing it later on.
you need create two global frames
CGRect originalFrame, fullScreenFrame;
//in viewDidLoad initialize these frames... originalFrame with imageView frame and
fullScreenFrame with the iPad window coordinates........ but remeber this can distort the
aspect ratio so just calculate the aspect ratio of original image by using its height and
width and accordingly create the full screen frame for the image.......
and just assign these frames in your gesture action.
Thanks,
in
viewDidLoad
originalFrame = imageView.frame;
or
originalFrame = CGRectMake(imageView.frame.origin.x,imageView.frame.origin.y,imageView.frame.size.width,imageView.frame.size.height);
appDelegate <----- get the instance of your appdelegate object so that we can retrieve the window object.......
UIWindow *tempWindow = [appDelegate window];
fullScreenFrame = CGRectMake(tempWindow .frame.origin.x,tempWindow .frame.origin.y,tempWindow .frame.size.width,tempWindow.frame.size.height);
//**in event just set frame of the imageView-- for knowing the current state-- whether its fullScreen or original frame we need to have a flag........it should be global...
so declare a global flag ....BOOL isFullScreenMode and initialize it as NO in
viewDidLoad
isFullScreenMode = NO;
in gesture actions just check this flag and write following...
if (isFullScreenMode)
[imageView setFrame:originalFrame];
else
[imageView setFrame:fullScreenFrame];
isFullScreenMode = !isFullScreenMode;
#implementation ImageFullScreen
#synthesize myImage;
#import "GesturesViewController.h"
#import "GesturesAppDelegate.h"
#implementation GesturesViewController
#synthesize imageView;
CGRect originalFrame,fullScreenFrame;
BOOL isFullScreenMode;
- (void)viewDidLoad {
// Loading test image
imageView.image = [UIImage imageNamed:#"image1.jpg"];
//---tap gesture---
isFullScreenMode = NO;
originalFrame = CGRectMake(imageView.frame.origin.x,imageView.frame.origin.y,imageView.frame.size.width,imageView.frame.size.height);
//changes
fullScreenFrame = CGRectMake(0,0,768,1004);
UITapGestureRecognizer *tapGesture =
[[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(handleTapGesture:)];
tapGesture.numberOfTapsRequired = 2;
[imageView addGestureRecognizer:tapGesture];
[tapGesture release];
//---pinch gesture---
UIPinchGestureRecognizer *pinchGesture =
[[UIPinchGestureRecognizer alloc] initWithTarget:self action:#selector(handlePinchGesture:)];
[imageView addGestureRecognizer:pinchGesture];
[pinchGesture release];
[super viewDidLoad];
}
//---handle tap gesture---
-(IBAction) handleTapGesture:(UIGestureRecognizer *) sender {
// HOW TO ACCOMPLISH THIS PART
if (isFullScreenMode)
[imageView setFrame:originalFrame];
else
[imageView setFrame:fullScreenFrame];
[imageView setCenter:CGPointMake(self.view.frame.size.width/2,self.view.frame.size.height/2)];
isFullScreenMode = !isFullScreenMode;
NSLog(#"Image View : %#",imageView);
}
//---handle pinch gesture---
-(IBAction) handlePinchGesture:(UIGestureRecognizer *) sender {
CGFloat factor = [(UIPinchGestureRecognizer *) sender scale];
if (sender.state == UIGestureRecognizerStateEnded){
// HOW TO ACCOMPLISH THIS ---
if (factor > 1 && !isFullScreenMode) {
//---pinching in---
[imageView setFrame:fullScreenFrame];
} else {
//---pinching out---
[imageView setFrame:originalFrame];
}
isFullScreenMode = !isFullScreenMode;
[imageView setCenter:CGPointMake(self.view.frame.size.width/2,self.view.frame.size.height/2)];
}
NSLog(#"Image View : %#",imageView);
}