good morning,
i have a problem when i tried to pass to a full screen by clicking on the zoom button.In fact when i tapped the button displays a video and a toolbar that allows to move in the video. it's seems worked perfectly but i discovered that when I move through the slider to a level almost 60% I can not move forward or backward.
i think that the problem is due to layout setting.
this the code :
- (void)changeFullScreen:(BOOL)isFullScreen index:(int)index{
if (isFullScreen == YES) {
CGAffineTransform affineTransforme = CGAffineTransformMakeRotation(M_PI_2);
//CGFloat scale = [UIScreen mainScreen].bounds.size.height / [UIScreen mainScreen].bounds.size.width;
//affineTransforme = CGAffineTransformScale(affineTransforme,scale , scale);
NSIndexPath *indexPath = [NSIndexPath indexPathForItem:index inSection:0];
EMPOIVideoCell *cell = [poiTableView cellForRowAtIndexPath:indexPath];
tmpVideoPlayerview = [cell.containerView viewWithTag:101];
//tmpVideoPlayerview.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
tmpVideoPlayerview.transform = affineTransforme; //CGAffineTransformTranslate(affineTransforme, 190, 0);
fullScreenView = [[UIViewController alloc] init];
tmpVideoPlayerview.frame = CGRectMake(-248, 0, fullScreenView.view.bounds.size.height , fullScreenView.view.bounds.size.width);
tmpVideoPlayerview.videoContainer.frame = tmpVideoPlayerview.frame;
tmpVideoPlayerview.videoContainer.layer.frame = tmpVideoPlayerview.frame;
playerLayer = [AVPlayerLayer playerLayerWithPlayer:tmpVideoPlayerview.videoPlayer];
playerLayer.frame = tmpVideoPlayerview.videoContainer.bounds;
[tmpVideoPlayerview.avPlayerLayer removeFromSuperlayer];
[tmpVideoPlayerview.videoContainer.layer addSublayer:playerLayer];
tmpVideoPlayerview.contentMode = UIViewContentModeScaleToFill;
//[tmpVideoPlayerview updateConstraints];
[tmpVideoPlayerview setNeedsLayout] ;
[tmpVideoPlayerview layoutIfNeeded];
fullScreenView.view.clipsToBounds = YES;
[fullScreenView.view addSubview:tmpVideoPlayerview];
[self addChildViewController:fullScreenView];
[self.view addSubview:fullScreenView.view];
//[fullScreenView.view updateConstraints];
//[fullScreenView.view layoutIfNeeded];
[[UIApplication sharedApplication] setStatusBarHidden:YES];
}
photo to explain the situation
Related
For some strange reason, my UITextView's text appears cropped when the scrollofset is set.
Here's what it looks like:
This happens after doing:
textview.contentInset = UIEdgeInsetsZero;
[textview setContentOffset:CGPointMake(0, startypos + offset_yshift) animated:NO];
I tried manually setting contentSize.height, but that introduced another strange behavior, where the content offset seems to be ignored..
''Edit'': This is the code used to instantiate the textfield:
CGRect myImageRect = CGRectMake(-50.0f, -50.0f, 40.0f, 40.0f);
textview = [[UITextView alloc] initWithFrame: myImageRect];
textview.autocapitalizationType = UITextAutocapitalizationTypeNone;
[textview setScrollEnabled:YES];
textview.hidden = YES;
textview.contentInset = UIEdgeInsetsZero;
textview.opaque = NO;
textview.backgroundColor = [UIColor clearColor];
textview.textColor = [UIColor colorWithWhite:1 alpha:1];
textview.textAlignment = NSTextAlignmentCenter;
textview.frame = CGRectMake(0, 0, 250, 30);
textview.scrollEnabled = NO;
And the "update" code that checks the content positioning every frame:
// setting the actual size here
UITextPosition * pos = [textview positionFromPosition: textview.endOfDocument offset:nil];
CGRect therect = [textview caretRectForPosition:pos];
CGRect frame = textview.frame;
if([textview.text length] == 0){
frame.size.height = 30;
} else {
frame.size.height = therect.origin.y + therect.size.height;
}
// and here, we're changing the frame variable's height to max to 50
if(frame.size.height > 50){
frame.size.height = 50;
}
frame.size.width = desiredwidth; // some other variable
textview.frame = frame;
/*
... snip, unrelated code ...
*/
// later on
textview.contentInset = UIEdgeInsetsZero;
[textview setContentOffset:CGPointMake(0, startypos + offset_yshift) animated:NO];
As you can imagine, the setContentOffset bit there is what's causing the issue.
What is going on?
please try this from prev post
CGPoint offset = CGPointMake(0, self.textView.contentSize.height - self.textView.frame.size.height);
[self.textView setContentOffset: CGPointMake(0,0) animated:NO];
or
[self.textView setContentOffset:bottomOffset animated:YES];
[post]: UITextView contentOffset on iOS 7 "prev post"\
I ran into a very similar issue in iOS7 with UITextField - looks almost exactly the same. Mine had to do with content insets as well.
The solution (for me) - was to eliminate the UITextField from nib/storyboard and instantiate it and add it to the view purely from code. Behavior worked as expected afterwards.
I don't know what was up other than it probably being a iOS7 / XCode 5 bug... Curious to know if that solves it for you too.
My thougts would be, to adjust the size of the UITextView based on its content.
Like asked here: how-do-i-size-a-uitextview-to-its-content
Code taken from jhibberd ´s answer
- (void)textViewDidChange::(UITextView *)textView
{
CGFloat fixedWidth = textView.frame.size.width;
CGSize newSize = [textView sizeThatFits:CGSizeMake(fixedWidth, MAXFLOAT)];
CGRect newFrame = textView.frame;
newFrame.size = CGSizeMake(fmaxf(newSize.width, fixedWidth), newSize.height);
textView.frame = newFrame;
}
I want to animate a UIImageView left to right with UIPageControl. I have this code but it seems a bit odd...Specifically because what would I do when I reach image 3? I would have to return and that would mess up the mathematical calculations of the views in the pageControl array the way I have it set up:
-(void)createUIViews{
UIImage *image1 = [UIImage imageNamed:#"GiftCard.png"];
firstView = [[UIImageView alloc] initWithImage:image1];
firstView.backgroundColor = [UIColor grayColor];
firstView.tag = 1;
firstView.autoresizingMask = (UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin);
[self.view addSubview:firstView];
CGRect newFrame = firstView.frame;
newFrame.origin.x += 40; // shift right by 50pts
newFrame.origin.y += 40;
[UIView animateWithDuration:1.0
animations:^{
firstView.frame = newFrame;
}];
UIImage *image2 = [UIImage imageNamed:#"MyCard.png"];
secondView = [[UIImageView alloc] initWithImage:image2];
secondView.backgroundColor = [UIColor grayColor];
secondView.tag = 1;
secondView.autoresizingMask = (UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin);
UIImage *image3 = [UIImage imageNamed:#"GiftCard.png"];
thirdView = [[UIImageView alloc] initWithImage:image3];
thirdView.backgroundColor = [UIColor grayColor];
thirdView.tag = 1;
thirdView.autoresizingMask = (UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin);
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self createUIViews];
// Set up the views array with 3 UIImageViews
views = [[NSArray alloc] initWithObjects:firstView, secondView, thirdView, nil];
// Set pageControl's numberOfPages to 3
self.pageControl.numberOfPages = [views count];
// Set pageControl's currentPage to 0
self.pageControl.currentPage = 0;
// Call changePage each time value of pageControl changes
[self.pageControl addTarget:self action:#selector(changePage:) forControlEvents:UIControlEventValueChanged];
}
- (IBAction) changePage:(id)sender {
NSLog(#"pageControl position %d", [self.pageControl currentPage]);
int oldPageControlPosition = [self.pageControl currentPage] - 1;
NSLog(#"old pageControl position %d", oldPageControlPosition);
//0 Get the currentview as referenced by pageControl
UIImageView *oldView = [views objectAtIndex:oldPageControlPosition];
//NSLog(#"views objectAtIndex = %#",[views objectAtIndex:[self.pageControl currentPage]]);
//1 Animate out the old view
CGRect oldViewFrame = oldView.frame;
oldViewFrame.origin.x -= 300;
[UIView animateWithDuration:2.0
delay: 0.5
options: UIViewAnimationOptionCurveEaseIn
animations:^{
oldView.frame = oldViewFrame;
}
completion:nil];
//3 Get next view from array
UIImageView *nextView = [views objectAtIndex:[self.pageControl currentPage]];
//4 Add it to mainview
[self.view addSubview:nextView];
//5 Animate in
CGRect nextViewFrame = nextView.frame;
nextViewFrame.origin.x += 40; // shift right by 50pts
nextViewFrame.origin.y += 40;
[UIView animateWithDuration:1.0
animations:^{
nextView.frame = nextViewFrame;
}];
}
When I reach the end, I try to return, the last position is 2 and oldPosition at that time is 1. Which is correct, array goes from 0 to 1 to 2 for a total of 3 positions. But when I return, the log displays position as 1 instead of 2, which is fine, because I reversed...but old position shows 0 instead of 2.
I couldnt get it to determine direction so I ended up using gesture recognizers with swipe left and swipe right instances. Here is the code:
//Help determine direction of swipe
UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(swipeNext:)];
swipeLeft.direction = UISwipeGestureRecognizerDirectionLeft;
[self.scrollView addGestureRecognizer:swipeLeft];
UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(swipePrev:)];
swipeRight.direction = UISwipeGestureRecognizerDirectionRight;
[self.scrollView addGestureRecognizer:swipeRight];
Here is my horizontal UIPickerView (by rotate & scale the ori UIpicker) : htp://s7.postimage.org/qzez9d0pn/Original.png
And now, what I want to do is cut off these two spaces : http://s7.postimage.org/bryzp08uz/Process.png
To have this better look result : http://s7.postimage.org/6ulf3w6vv/Result.png
Somebody please help me how to do it...?
my rotate & scale code :
thePickerView.delegate = self;
thePickerView.showsSelectionIndicator =YES;
thePickerView.center = CGPointMake(xVar, yVar); // position
CGAffineTransform rotate = CGAffineTransformMakeRotation(-3.14/2); // rotate
rotate = CGAffineTransformScale(rotate, 0.1, 1); // scale
[thePickerView setTransform:rotate];
UILabel *theview[num];
CGAffineTransform rotateItem = CGAffineTransformMakeRotation(3.14/2);
for (int i=0;i<num;i++) {
theview[i] = [[UILabel alloc] init];
theview[i].text = [NSString stringWithFormat:#"%d",i+1];
theview[i].textColor = [UIColor blackColor];
theview[i].frame = CGRectMake(0,0, 100, 100);
theview[i].backgroundColor = [UIColor clearColor];
theview[i].textAlignment = UITextAlignmentCenter;
theview[i].shadowColor = [UIColor whiteColor];
theview[i].shadowOffset = CGSizeMake(-1,-1);
theview[i].adjustsFontSizeToFitWidth = YES;
theview[i].transform = CGAffineTransformScale(rotateItem, 1, 10);
}
itemArray = [[NSMutableArray alloc] init];
for (int j=0;j<num;j++) {[itemArray addObject:theview[j]];}
[thePickerView selectRow:row inComponent:0 animated:NO];
[self.view addSubview:thePickerView];
My temporary solution while searching & waiting for better coding answer is create an overlay background image then transparent the desire space of PickerView =.=
I have one view controller in which I have added UIScrollView & UIImageView programatically. I have added UIPichGestureRecognizer to the UIImageView. My UIImageView is added to UIScrollView as a subview.
My problem is when I try to pinch the image , it zoom in. But when I release the touches from screen it again come to its default size. I can not find the error in code. Please help me.
Below is my code
- (void)createUserInterface {
scrollViewForImage = [[UIScrollView alloc]initWithFrame:CGRectMake(20.0f, 60.0f, 280.0f, 200.0f)];
scrollViewForImage.userInteractionEnabled = YES;
scrollViewForImage.multipleTouchEnabled = YES;
scrollViewForImage.backgroundColor = [UIColor redColor];
scrollViewForImage.autoresizesSubviews = YES;
scrollViewForImage.maximumZoomScale = 1;
scrollViewForImage.minimumZoomScale = .50;
scrollViewForImage.clipsToBounds = YES;
scrollViewForImage.delegate = self;
scrollViewForImage.bouncesZoom = YES;
scrollViewForImage.contentMode = UIViewContentModeScaleToFill;
[self.contentView addSubview:scrollViewForImage];
imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0.0f, 0.0f, 280.0f, 200.0f)];
[imageView setBackgroundColor:[UIColor clearColor]];
imageView.userInteractionEnabled = YES;
imageView.multipleTouchEnabled = YES;
UIPinchGestureRecognizer *pinchRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:#selector(pinch:)];
[pinchRecognizer setDelegate:self];
[imageView addGestureRecognizer:pinchRecognizer];
//[self.contentView addSubview:imageView];
[self.scrollViewForImage addSubview:imageView];
scrollViewForImage.contentSize = CGSizeMake(imageView.frame.size.width , imageView.frame.size.height);
}
-(UIView *) viewForZoomingInScrollView:(UIScrollView *)inScroll {
return imageView;
}
-(void)pinch:(id)sender {
[self.view bringSubviewToFront:[(UIPinchGestureRecognizer*)sender view]];
if([(UIPinchGestureRecognizer*)sender state] == UIGestureRecognizerStateEnded) {
lastScale = 1.0;
return;
}
CGFloat scale = 1.0 - (lastScale - [(UIPinchGestureRecognizer*)sender scale]);
CGAffineTransform currentTransform = [(UIPinchGestureRecognizer*)sender view].transform;
CGAffineTransform newTransform = CGAffineTransformScale(currentTransform, scale, scale);
[[(UIPinchGestureRecognizer*)sender view] setTransform:newTransform];
lastScale = [(UIPinchGestureRecognizer*)sender scale];
}
From what I can see the problem lies here:
scrollViewForImage.maximumZoomScale = 1;
You are setting the maximum zoom scale of the image to 1 x its full size. This means once you finish pinching the image, it will scale back to 1 x its size.
If you want to be able to zoom the image to a larger size, try settings this value to be higher than 1. e.g.
scrollViewForImage.maximumZoomScale = 3;
I'm trying to make a view looking almost like the info-view in appStore, with text on the first half of the view and images on the second half. I've tried to use a scrollview in another scrollview. The first view (containing a textview on the top half and a scrollview on the bottom half) scrolls nice, but the scrollview at the bottom (containing several imageviews) doesn't scroll.
Any ideas how to make the second scrollview to scroll?
scrollView is the view containing a textview and a scrollview.
imageScrollView is the view with the imageviews.
[scrollView setContentSize:CGSizeMake(320, 585)];
[imageScrollView setContentSize:CGSizeMake(1520, 400)];
I recently figured it out myself, but forgot to post the answer. The problem was that I set the sizes of the scrollviews in .xib to the same sizes as in the code. When I changed it to 320,416 and 320,400 I was able to scroll them with the setContentSize. In the imageScrollView I then added images along the x-axis (first image at 0, second at image width + a small space and so on). Hope this could help someone.
HERE IS CODE OF scroll-view display images from Documents Directory ByType .png Images who seved by user from Iphone Photo Gallery
- (void)viewDidLoad {
int scrollviewwidh = 120;
self.view.backgroundColor = [UIColor darkTextColor];
hiImage = [[UIImageView alloc]initWithFrame:CGRectMake(10, 10, 300, 240)];
hiImage.backgroundColor = [UIColor blackColor];
hiImage.userInteractionEnabled = YES;
[hiImage.layer setBorderColor:[UIColor blackColor].CGColor];
[hiImage.layer setBorderWidth:2.01f];
[self.view addSubview:hiImage];
[hiImage release];
scroll=[[UIScrollView alloc]initWithFrame:CGRectMake(0, 260, 320, 110)];
[self.view addSubview:scroll];
scroll.showsHorizontalScrollIndicator = NO;
scroll.pagingEnabled=YES;
scroll.delegate=self;
scroll.contentSize=CGSizeMake(scrollviewwidh,80);
scroll.showsVerticalScrollIndicator =YES;
scroll.backgroundColor = [UIColor darkTextColor];
}
-(void) viewWillAppear:(BOOL)animated{
self.fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES);
self.documentsDir = [paths objectAtIndex:0];
NSLog(#"the ----------- %#",documentsDir);
for (UIButton * img in self.scroll.subviews) {
[img removeFromSuperview];
img = nil;
}
int xoffcet = 0;
int col = 0;
int scrollviewwidh = 120;
for (NSString* fileName in [self.fileManager contentsOfDirectoryAtPath: self.documentsDir error:nil]){
if ( [fileName rangeOfString:#".png"].location != NSNotFound ) {
NSLog(#"add %#", fileName);
UIImage* img = [UIImage imageWithContentsOfFile:
[self.documentsDir stringByAppendingPathComponent:fileName]
];
imgView = [[UIButton alloc] init];
[imgView setImage:img forState:UIControlStateNormal];
[imgView addTarget:self action:#selector(imageViewClicked:) forControlEvents:UIControlEventTouchUpInside];
[imgView.layer setBorderColor:[UIColor lightGrayColor].CGColor];
[imgView.layer setBorderWidth:1.0f];
imgView.bounds = CGRectMake(10,10, 50, 50);
imgView.frame = CGRectMake(5+xoffcet, 0, 160, 110);
scroll.contentSize =CGSizeMake(scrollviewwidh+xoffcet,110);
[scroll addSubview:imgView];
[imgView release];
xoffcet +=170;
}
if (col++>1) {
//row++;
col = 0;
}
}
self.title = #"saved Photo";
// [scroll release];
[super viewDidLoad];
// scroll.pagingEnabled = YES;
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:
UIBarButtonSystemItemCancel
target:self
action:#selector(photogallary:)];
}
-(IBAction)imageViewClicked:(UIButton *)sender{
for (NSString* fileName in [self.fileManager contentsOfDirectoryAtPath: self.documentsDir error:nil]){
if ( [fileName rangeOfString:#".png"].location != NSNotFound ) {
NSLog(#"add %#", fileName);
UIImage* img = [UIImage imageWithContentsOfFile:
[self.documentsDir stringByAppendingPathComponent:fileName]];
hiImage.image = img;
}
}
}
All The Very Best i Hope its useful Thank You If Thats code Help please give Your Feedback