I have a problem with changing images in the scrollview, the scrollview problem is that depending on the action that makes me have to change the image that contains other, as I do not change the picture or the array of images, I need help, thanks
- (void)viewDidLoad
{
[super viewDidLoad];
NSMutableArray *imgNames = [[NSMutableArray alloc] initWithObjects:#"cooper.png", #"cabrio.png",#"country.png", nil];
NSMutableArray *imgArray = [[NSMutableArray alloc] init];
UIImageView *tempImageView;
for(NSString *name in imgNames) {
tempImageView = [[UIImageView alloc] init];
tempImageView.contentMode = UIViewContentModeScaleAspectFit;
tempImageView.image = [UIImage imageNamed:name];
[imgArray addObject:tempImageView];
}
CGSize pageSize = scrollView.frame.size;
NSUInteger page = 0;
for(UIView *view in imgArray) {
[scrollView addSubview:view];
view.frame = CGRectMake(pageSize.width * page++ + 10, 0, pageSize.width - 20, pageSize.height);
}
scrollView.contentSize = CGSizeMake(pageSize.width * [imgArray count], pageSize.height);
}
- (IBAction)btnAction:(id)sender {
NSMutableArray *imgNames = [[NSMutableArray alloc] initWithObjects:#"hello.png", #"bye.png",#"trues.png", nil];
NSMutableArray *imgArray = [[NSMutableArray alloc] init];
UIImageView *tempImageView;
for(NSString *name in imgNames) {
tempImageView = [[UIImageView alloc] init];
tempImageView.contentMode = UIViewContentModeScaleAspectFit;
tempImageView.image = [UIImage imageNamed:name];
[imgArray addObject:tempImageView];
}
CGSize pageSize = scrollView.frame.size;
NSUInteger page = 0;
for(UIView *view in imgArray) {
[scrollView addSubview:view];
view.frame = CGRectMake(pageSize.width * page++ + 10, 0, pageSize.width - 20, pageSize.height);
}
scrollView.contentSize = CGSizeMake(pageSize.width * [imgArray count], pageSize.height);
}
}
You can directly set the image alone if UIImageView is already allocated in viewDidLoad like,
for(UIImageView *view in imgArray) {
view.image = [UIImage imageNamed:[imgNames objectAtIndex:[imgArray indexOfObject:view]]]
}
Related
I have four images on a viewcontroller.On the click of those images a newViewController i.e. LargeImageViewController opens. On the LargeImageViewController there is ScrollView which does horizontal scrolling. On click of every button the images on LargeImageViewController starts from image1 ,then shows image2,then image 3,then image 4.
I want that if image 2 is clicked then the images on LargeImageViewController should start image2,then image 3,then image 4.....but when it goes to previous image then it should show image 4,image3,image 2 and image1 also.
How this can be achieved??
Code that I am using are as follows:
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
// int pageCount=4;
NSArray *imgArray = [self.tripDetails valueForKey:#"Flightimageurl"];
width = [UIScreen mainScreen].bounds.size.width;
height = [UIScreen mainScreen].bounds.size.height;
_scroller = [[UIScrollView alloc]initWithFrame:
CGRectMake(0,64,width,height)];
_scroller.contentSize=CGSizeMake([imgArray count]*_scroller.bounds.size.width,_scroller.bounds.size.height);
CGRect ViewSize=_scroller.bounds;
for(int i=0;i<[imgArray count];i++)
{
UIImageView *imgView1=[[UIImageView alloc]initWithFrame:ViewSize];
NSString *ImageURL = [imgArray objectAtIndex:i];
NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:ImageURL]];
imgView1.image=[UIImage imageWithData:imageData];
[_scroller addSubview:imgView1];
[self.view addSubview:_scroller];
ViewSize =CGRectOffset(ViewSize,_scroller.bounds.size.width,0);
}
}
Kindly help with suggesting the changes.
-(void)singleTapping:(UIGestureRecognizer *)recognizer {
int imageTag = (int) recognizer.view.tag;
NSDictionary *dictCurrentWish = [arrLatestScrollData objectAtIndex:pageNumberSaved];
scrollimagePostView = [[UIScrollView alloc] initWithFrame:CGRectMake(0,0, kSCREEN_WIDTH, kSCREEN_HEIGHT)];
scrollimagePostView.pagingEnabled=YES;
scrollimagePostView.delegate=self;
UITapGestureRecognizer *gr = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(handleGesture:)];
[scrollimagePostView addGestureRecognizer:gr];
NSMutableArray *arrTotalImages = [[NSMutableArray alloc]initWithCapacity:0];
[arrTotalImages addObject:[dictCurrentWish objectForKey:#"pic1"]];
[arrTotalImages addObject:[dictCurrentWish objectForKey:#"pic2"]];
[arrTotalImages addObject:[dictCurrentWish objectForKey:#"pic3"]];
[arrTotalImages addObject:[dictCurrentWish objectForKey:#"pic4"]];
int x=0;
CGRect innerScrollFrame = scrollimagePostView.bounds;
for (int i=0; i<arrTotalImages.count; i++) {
imgViewPost=[[UIImageView alloc]initWithFrame:CGRectMake(x, 60, kSCREEN_WIDTH,kSCREEN_HEIGHT-90)];
NSString *strImage =[NSString stringWithFormat:#"%#", [arrTotalImages objectAtIndex:i]];
NSString *strURL=[strImage stringByReplacingOccurrencesOfString:#" " withString:#"%20"];
NSURL* urlAddress1 = [[NSURL alloc] initWithString:strURL];
[imgViewPost sd_setImageWithURL:urlAddress1 placeholderImage:wishPlaceHolderImage];
imgViewPost.contentMode = UIViewContentModeScaleAspectFit;
imgViewPost.tag = VIEW_FOR_ZOOM_TAG;
UIScrollView *pageScrollView = [[UIScrollView alloc]
initWithFrame:innerScrollFrame];
pageScrollView.minimumZoomScale = 1.0f;
pageScrollView.maximumZoomScale = 6.0f;
pageScrollView.zoomScale = 1.0f;
pageScrollView.contentSize = imgViewPost.bounds.size;
pageScrollView.delegate = self;
pageScrollView.showsHorizontalScrollIndicator = NO;
pageScrollView.showsVerticalScrollIndicator = NO;
[pageScrollView addSubview:imgViewPost];
[scrollimagePostView addSubview:imgViewPost];
x=x+kSCREEN_WIDTH;
if (i < 2) {
innerScrollFrame.origin.x += innerScrollFrame.size.width;
}
}
scrollimagePostView.contentSize = CGSizeMake(x, scrollimagePostView.frame.size.height );
scrollimagePostView.backgroundColor = [UIColor blackColor];
[self.view addSubview:scrollimagePostView];
[scrollimagePostView setContentOffset:CGPointMake(scrollimagePostView.frame.size.width*(imageTag-1), 0.0f) animated:NO];
btnCloseFullIMageView = [[UIButton alloc]initWithFrame:CGRectMake(kSCREEN_WIDTH-80, 25, 70, 25)];
[btnCloseFullIMageView setTitle:#"Close" forState:UIControlStateNormal];
[btnCloseFullIMageView setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
btnCloseFullIMageView.backgroundColor = [UIColor blackColor];
btnCloseFullIMageView.layer.borderColor = [UIColor whiteColor].CGColor;
btnCloseFullIMageView.layer.borderWidth = 0.5;
btnCloseFullIMageView.layer.cornerRadius = 3.0;
btnCloseFullIMageView.clipsToBounds = TRUE;
[btnCloseFullIMageView addTarget:self action:#selector(closeFullImageView:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btnCloseFullIMageView];
}
I have four images on a Viewcontroller A .On the click of those images Viewcontroller B having UIScrollView presents that has image view and it shows all those four imgaes....Image1 ,image 2,image 3,image 4.
I want that when image 2 is clicked then image 2 appeas as the first image on Viewcontroller B ,then image 3,then image 4...Also,when user moves left then it shows previous images including image1 too.
I have searched a lot but couldn't find solution to this problem Kindly.help
The code I have used are as follows:
- (void)viewDidLoad {
[super viewDidLoad];
width = [UIScreen mainScreen].bounds.size.width;
height = [UIScreen mainScreen].bounds.size.height;
_scroller = [[UIScrollView alloc]initWithFrame:
CGRectMake(0,64,width,height)];
_scroller.contentSize=CGSizeMake(pageCount*_scroller.bounds.size.width,_scroller.bounds.size.height);
_scroller.pagingEnabled=YES;
_scroller.showsHorizontalScrollIndicator=YES;
CGRect ViewSize=_scroller.bounds;
NSArray *imgArray = [self.tripDetails valueForKey:#"Flightimageurl"];
for(int i=0;i<[imgArray count];i++)
{
UIImageView *imgView1=[[UIImageView alloc]initWithFrame:ViewSize];
NSString *ImageURL = [imgArray objectAtIndex:i];
NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:ImageURL]];
imgView1.image=[UIImage imageWithData:imageData];
[_scroller addSubview:imgView1];
[self.view addSubview:_scroller];
ViewSize =CGRectOffset(ViewSize,_scroller.bounds.size.width,0);
}
}
Use This Code It will be helpful to you
-(void)singleTapping:(UIGestureRecognizer *)recognizer {
int imageTag = (int) recognizer.view.tag;
NSDictionary *dictCurrentWish = [arrLatestScrollData objectAtIndex:pageNumberSaved];
scrollimagePostView = [[UIScrollView alloc] initWithFrame:CGRectMake(0,0, kSCREEN_WIDTH, kSCREEN_HEIGHT)];
scrollimagePostView.pagingEnabled=YES;
scrollimagePostView.delegate=self;
UITapGestureRecognizer *gr = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(handleGesture:)];
[scrollimagePostView addGestureRecognizer:gr];
NSMutableArray *arrTotalImages = [[NSMutableArray alloc]initWithCapacity:0];
[arrTotalImages addObject:[dictCurrentWish objectForKey:#"pic1"]];
[arrTotalImages addObject:[dictCurrentWish objectForKey:#"pic2"]];
[arrTotalImages addObject:[dictCurrentWish objectForKey:#"pic3"]];
[arrTotalImages addObject:[dictCurrentWish objectForKey:#"pic4"]];
int x=0;
CGRect innerScrollFrame = scrollimagePostView.bounds;
for (int i=0; i<arrTotalImages.count; i++) {
imgViewPost=[[UIImageView alloc]initWithFrame:CGRectMake(x, 60, kSCREEN_WIDTH,kSCREEN_HEIGHT-90)];
NSString *strImage =[NSString stringWithFormat:#"%#", [arrTotalImages objectAtIndex:i]];
NSString *strURL=[strImage stringByReplacingOccurrencesOfString:#" " withString:#"%20"];
NSURL* urlAddress1 = [[NSURL alloc] initWithString:strURL];
[imgViewPost sd_setImageWithURL:urlAddress1 placeholderImage:wishPlaceHolderImage];
imgViewPost.contentMode = UIViewContentModeScaleAspectFit;
imgViewPost.tag = VIEW_FOR_ZOOM_TAG;
UIScrollView *pageScrollView = [[UIScrollView alloc]
initWithFrame:innerScrollFrame];
pageScrollView.minimumZoomScale = 1.0f;
pageScrollView.maximumZoomScale = 6.0f;
pageScrollView.zoomScale = 1.0f;
pageScrollView.contentSize = imgViewPost.bounds.size;
pageScrollView.delegate = self;
pageScrollView.showsHorizontalScrollIndicator = NO;
pageScrollView.showsVerticalScrollIndicator = NO;
[pageScrollView addSubview:imgViewPost];
[scrollimagePostView addSubview:imgViewPost];
x=x+kSCREEN_WIDTH;
if (i < 2) {
innerScrollFrame.origin.x += innerScrollFrame.size.width;
}
}
scrollimagePostView.contentSize = CGSizeMake(x, scrollimagePostView.frame.size.height );
scrollimagePostView.backgroundColor = [UIColor blackColor];
[self.view addSubview:scrollimagePostView];
[scrollimagePostView setContentOffset:CGPointMake(scrollimagePostView.frame.size.width*(imageTag-1), 0.0f) animated:NO];
btnCloseFullIMageView = [[UIButton alloc]initWithFrame:CGRectMake(kSCREEN_WIDTH-80, 25, 70, 25)];
[btnCloseFullIMageView setTitle:#"Close" forState:UIControlStateNormal];
[btnCloseFullIMageView setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
btnCloseFullIMageView.backgroundColor = [UIColor blackColor];
btnCloseFullIMageView.layer.borderColor = [UIColor whiteColor].CGColor;
btnCloseFullIMageView.layer.borderWidth = 0.5;
btnCloseFullIMageView.layer.cornerRadius = 3.0;
btnCloseFullIMageView.clipsToBounds = TRUE;
[btnCloseFullIMageView addTarget:self action:#selector(closeFullImageView:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btnCloseFullIMageView];
}
Does anyone know why is appearing white part? My View is already gray, but gets two white pieces
whites: Arrow and final Popover!
[UPDATE]
this is the code that calls the popover and makes the arrow points to the button that was clicked!
- (void) buttonFilter {
if (viewFilter == #"Artistas") {
content = [self.storyboard instantiateViewControllerWithIdentifier:#"TipoArtistaViewController"]; // MUDAR PARA O NOVO FILTRO DE ARTISTAS
} else if (viewFilter == #"Músicas") {
content = [self.storyboard instantiateViewControllerWithIdentifier:#"CategoriaViewController"];
}
[self callFilter:btnFilter Filter:content];
}
- (void)callFilter:(id)sender Filter:(UIViewController *) content{
self.currentPop = popoverController;
popoverController = [[WYPopoverController alloc] initWithContentViewController:content];
UIButton * bt = (UIButton * )sender;
UIView *view = [bt valueForKey:#"view"];
popoverController.popoverContentSize = CGSizeMake(320, 180);
popoverController.delegate = self;
[popoverController presentPopoverFromRect:view.bounds inView:view permittedArrowDirections:WYPopoverArrowDirectionAny animated:YES];
}
the next is where to mount the session:
//extend and collpase
- (void)setupViewController {
categoriaBD = [categoriaDAO selectCategoria];
self.data = [[NSMutableArray alloc] init];
for (int i = 0; i < [categoriaBD count]; i++)
{
NSMutableDictionary * teste = [categoriaBD objectForKey:[NSString stringWithFormat:#"%i", i]];
ID = [[teste objectForKey:#"1"] integerValue];
subcategoriaBD = [categoriaDAO selectSubCategoriaByCategoriaID:ID];
NSMutableArray* section = [[NSMutableArray alloc] init];
for (int j = 0; j < [subcategoriaBD count]; j++)
{
NSMutableDictionary * subCat = [subcategoriaBD objectForKey:[NSString stringWithFormat:#"%i", j]];
[section addObject:[NSString stringWithFormat:[subCat objectForKey:#"1"]]];
}
[self.data addObject:section];
}
self.headers = [[NSMutableArray alloc] init];
for (int i = 0; i < [categoriaBD count]; i++)
{
NSString *inStr = [NSString stringWithFormat: #"%i", (int)i];
nomeCategoria = [categoriaBD objectForKey:inStr];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(5, 5, 310, 40)];
[label setText:[nomeCategoria objectForKey:#"2"]];
UIView* header = [[UIView alloc] init];
[header setBackgroundColor:[UIColor colorWithRed:(226/255.0) green:(226/255.0) blue:(226/255.0) alpha:1]];
[header addSubview:label];
[self.headers addObject:header];
}
}
You can to create a custom UIPopoverBackgroundView subclass that sets the properties of the arrow you want.
popoverController.popoverBackgroundViewClass = [MyPopoverBackgroundView class];
I am trying to show no. of images in different image view. if i have 3 image then i want show in 3 diff. UIImageView in my View. Here is my code that only shows one image. What have i missed here?
NSArray * _thumbnails = _claimReport.photos.allObjects;
if (_thumbnails.count >0)
{
NSMutableArray *imageViews = [[NSMutableArray alloc] init];
for (int i =1; i<_thumbnails.count; i++)
{
UIImageView *newImageViews = [[UIImageView alloc]initWithFrame:CGRectMake(40, 1700*i+20, 670, 700)];
LAPhoto *photo = [_thumbnails objectAtIndex:i];
[newImageViews setImage:[UIImage imageWithData:photo.photo]];
NSLog(#" newImageViews %# ",newImageViews);
[imageViews addObject:newImageViews];
[self.formView addSubview:newImageViews];
}
NSLog(#"Count %d" , imageViews.count);
}
You can add the images in a scroll view:
self.scrollView = [[UIScrollView alloc]initWithFrame:self.view.bounds];
[self.formView addSubview:self.scrollView];
NSArray * _thumbnails = _claimReport.photos.allObjects;
if (_thumbnails.count >0)
{
NSMutableArray *imageViews = [[NSMutableArray alloc] init];
for (int i =0; i<_thumbnails.count; i++)
{
UIImageView *newImageViews = [[UIImageView alloc]initWithFrame:CGRectMake(40, 800*i+20, 670, 700)];
LAPhoto *photo = [_thumbnails objectAtIndex:i];
[newImageViews setImage:[UIImage imageWithData:photo.photo]];
NSLog(#" newImageViews %# ",newImageViews);
[imageViews addObject:newImageViews];
self.scrollView.contentSize = CGSizeMake(670, 800 *i + 800);
[self.scrollView addSubview:newImageViews];
}
NSLog(#"Count %d" , imageViews.count);
}
How would you change this method to allow images to be in via an array rather than colors? As I have mySQL database which passing in urls which are assigned as NSStrings in xcode which are stored in an array.
Idea being that each view has set background image from the mySQL database.
- (void)viewDidLoad
{
[super viewDidLoad];
NSArray *colors = [NSArray arrayWithObjects:[UIColor redColor], [UIColor blueColor],
[UIColor greenColor],[UIColor yellowColor] , nil];
for (int i = 0; i < colors.count; i++) {
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * i;
frame.size = self.scrollView.frame.size;
self.scrollView.pagingEnabled = YES;
UIView *subview = [[UIView alloc] initWithFrame:frame];
subview.backgroundColor = [colors objectAtIndex:i];
[self.scrollView addSubview:subview];
}
self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * colors.count, self.scrollView.frame.size.height);
}
I made a try with (introNames is class where id and names of images are held from the mySQL database. The imageArray was created in the above code class and nsstrings from introNames were assigned to it).
- (void)viewDidLoad
{
[super viewDidLoad];
for (int i = 0; i < imageArray.count; i++) {
introImages *snap = [imageArray objectAtIndex:i];
imageName2 = snap.imageName;
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * i;
frame.size = self.scrollView.frame.size;
self.scrollView.pagingEnabled = YES;
UIView *subview = [[UIView alloc] initWithFrame:frame];
UIImageView *backgroundView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:imageName2]];
[subview addSubview:backgroundView];
[self.scrollView addSubview:subview];
}
self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * imageArray.count, self.scrollView.frame.size.height);
}
This is the working data retrieval system.
-(void) retrieveData
{
NSURL *url = [NSURL URLWithString:getDataUrl];
NSData *data = [NSData dataWithContentsOfURL:url];
if (data) {
jsonConnection = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];
imageArray = [[NSMutableArray alloc]init];
for (int i = 0; i < jsonConnection.count; i++)
{
NSString *pID = [[jsonConnection objectAtIndex:i] objectForKey:#"id"];
NSString *pName = [[jsonConnection objectAtIndex:i] objectForKey:#"ImagesURL"];
introImages *myImages = [[introImages alloc]initWithimageID:pID andimageName:pName];
[imageArray addObject:myImages];
}
}
else {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:nil message:#"Something is wrong with your internet connection" delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];
}
Any ideas would be great :)
If you are not using iOS6+ in you app use this class PSTCollectionView
and if you are using iOS6 and above use UICollectionView Class Reference