I am trying to add UIImageView along with text for UISegmentedControl. Please Note that I don't want to set image as background and I have already got segmented control in IB. What I have tried so far is:
for (id segment in [segmentControl subviews])
{
for (id label in [segment subviews])
{
if ([label isKindOfClass:[UILabel class]])
{
float width = ((UILabel*)label).bounds.size.width;
UIImageView *image = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"Arrow-down.png"]];
image.frame = CGRectMake(width + 2, 15 , 32, 32);
((UILabel*)label).frame = CGRectMake(((UILabel*)label).frame.origin.x,((UILabel*)label).frame.origin.y, width + image.frame.size.width + 5, ((UILabel*)label).frame.size.height);
[(UILabel*)label insertSubview:image atIndex:0];
}
}
}
Please can someone guide me? Thanks.
Try this,
You can directly set backgoundcolor of uilabel
((UILabel*)label).backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"Arrow-down.png"]];
Related
Every time you click on the create button 4 rows of images are created. I'm using this technique for the game mastermind. When you click on the clear button every imageview has to be set to nil, but now only the last created 4 imageviews are set to nil. Any help would be appreciated!
- (IBAction)create {
_imgView1 = [[UIImageView alloc] initWithFrame:CGRectMake(134, y, 30, 30)];
_imgView2 = [[UIImageView alloc] initWithFrame:CGRectMake(170, y, 30, 30)];
_imgView3 = [[UIImageView alloc] initWithFrame:CGRectMake(206, y, 30, 30)];
_imgView4 = [[UIImageView alloc] initWithFrame:CGRectMake(241, y, 30, 30)];
_imgView1.image = [UIImage imageNamed:[textfield_code objectAtIndex:0]];
_imgView2.image = [UIImage imageNamed:[textfield_code objectAtIndex:1]];
_imgView3.image = [UIImage imageNamed:[textfield_code objectAtIndex:2]];
_imgView4.image = [UIImage imageNamed:[textfield_code objectAtIndex:3]];
[self.view addSubview:_imgView1];
[self.view addSubview:_imgView2];
[self.view addSubview:_imgView3];
[self.view addSubview:_imgView4];
y += 41;
}
- (IBAction)clear {
[_imgView1 setImage:nil];
[_imgView2 setImage:nil];
[_imgView3 setImage:nil];
[_imgView4 setImage:nil];
}
enumerate the view's subviews
for(UIImageView *v in self.view.subviews) {
if([v isKindOfClass:[UIImageView class]) {
[v setImage:nil];
}
}
BUT this is 'dangerous' as it removes ANY image view there is. it'd be better to use tags too.
e.g.
define it as #define MyTag 100
and when will creating v.tag = MyTag
and then in the loop check it if(v.tag == MyTag)
I am looking for an example that show just vertical scrolling in iPhone.
The Apple supplied Scrolling example allows swiping of images left to
right.
Example Link
Example Link
I want to have my images scroll top to bottom like Instagram
App.
I research about it and found lots of example, but they all show
horizontal scrolling.
Example
Example
Example
Does anyone know how to do this?
I appreciate if you send me a link to a tutorial.
Hi i solved your problem with apple code,
just change the function with
- (void)layoutScrollImages
{
UIImageView *view = nil;
NSArray *subviews = [scrollView1 subviews];
// reposition all image subviews in a horizontal serial fashion
CGFloat curXLoc = 0;
for (view in subviews)
{
if ([view isKindOfClass:[UIImageView class]] && view.tag > 0)
{
CGRect frame = view.frame;
frame.origin = CGPointMake(0,curXLoc);
view.frame = frame;
curXLoc += (kScrollObjHeight);
}
}
// set the content size so it can be scrollable
[scrollView1 setContentSize:CGSizeMake(([scrollView1 bounds].size.width),kNumImages * kScrollObjHeight)];
}
or if you want sample then i will give you
For your purpose refer your link:
http://idevzilla.com/2010/09/16/uiscrollview-a-really-simple-tutorial/
There is a code like:
scroll.contentSize = CGSizeMake(self.view.frame.size.width * numberOfViews, self.view.frame.size.height);
For horizontal scrolling you need to set the width of contentSize property to a higher value than the scroll view's frame width. Likewise for vertical scrolling you need to set the height of contentSize property to a higher value than the scroll view's frame height.
Reference
In the above code it can be done like:
scroll.contentSize = CGSizeMake(self.view.frame.size.width, numberOfViews * self.view.frame.size.height);
You can use the following code to scroll images from top to bottom and vice versa.!!
- (void)viewDidLoad
{
//....
UISwipeGestureRecognizer *recognizer;
//for scrolling up
recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(SwipeUp)]; // calling method SwipeUp
[recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)];
[[self view] addGestureRecognizer:recognizer];
//for scrolling down
UISwipeGestureRecognizer *recognizer1;
recognizer1 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(SwipeDown)]; //calling method SwipeDown
[recognizer1 setDirection:(UISwipeGestureRecognizerDirectionDown)];
[[self view] addGestureRecognizer:recognizer1];
}
//Initialise and synthesise IBOutlet UIImageView *bgImage;
-(IBAction)SwipeUp
{
[bgImage setImage:[UIImage imageNamed:#"yourImage1"] ];
bgImage.opaque=YES;
[self.view addSubview:bgImage];
}
-(IBAction)SwipeDown
{
[bgImage setImage:[UIImage imageNamed:#"yourImage2"] ];
bgImage.opaque=YES;
[self.view addSubview:bgImage];
}
I don't know if I understood correctly what you want to accomplish but basically you can set the position of you scrollView using setContentOffset.
CGPoint bottomOffset = CGPointMake(0, scrollView.contentSize.height - self.scrollView.bounds.size.height);
[scrollView setContentOffset:bottomOffset animated:YES];
There are several ways of doing this for example:
Using the UITableView with Custom cell
Adding UIScrollingView & adding the content/images & increasing the
height of scrollview according to number of objects in array.
Here is the code snippet which creates a 2*2 Grid for images :
//Over here adding the image names into the Array
NSMutableArray *imageArray=[[NSMutableArray alloc]init];
[Arr addObject:[UIImage imageNamed:#"image_1.png"]];
[Arr addObject:[UIImage imageNamed:#"image_2.png"]];
[Arr addObject:[UIImage imageNamed:#"image_3.png"]];
[Arr addObject:[UIImage imageNamed:#"image_4.png"]];
[Arr addObject:[UIImage imageNamed:#"image_5.png"]];
// Initlaizing the ScrollView & setting the frame :
scrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 0,320, 460)];
[scrollView setBackgroundColor:[UIColor clearColor]];
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.showsVerticalScrollIndicator = NO;
int row = 0;
int column = 0;
for(int i = 0; i < imageArray.count; i++) {
UIButton * button = [UIButton buttonWithType:UIButtonTypeCustom];
button.backgroundColor=[UIColor clearColor];
button.frame = CGRectMake(column*160+0,row*210+10, 160, 190);
[button setImage:[imageArray objectAtIndex:i] forState:UIControlStateNormal];
[button setBackgroundColor:[UIColor clearColor]];
[button addTarget:self action:#selector(chooseCustomImageTapped:) forControlEvents:UIControlEventTouchUpInside];
button.tag = i;
[view1 addSubview:button];
if (column == 1) {
column = 0;
row++;
} else {
column++;
}
}
[scrollView setContentSize:CGSizeMake(320, (row+1) * 210)];
[self.view addSubview:view1];
//Here is the method used for Tapping :
- (IBAction)chooseCustomImageTapped:(id)sender
{
}
Now,once the scrollView is ready for Vertical scrolling, you can do your own customization accordingly. I hope this would work for you.
I have a problem, how i can show the line between check mark and move at the time of tableview edit. like same as in below image.
explain the process or else if possible please send me to example code.
Thanks in advance.
Look at this :
Declare BOOL checkMark; in .h
check its value.
// This all code in Cell For Row At IndexPath :
for (UIView *ObView in [cell.contentView subviews])
{
[ObView removeFromSuperview];
}
if(checkMark == YES) // you can check here by imdexPath.row.
{
UILabel *lbl = [[UILabel alloc]initWithFrame:CGRectMake(10,5,150,30)];
lbl.text = #"";
[cell.contentView addSubview:lbl];
UIImageView *CheckImage = [[UIImageView alloc]initWithFrame:CGRectMake(160,5,20,20)];
CheckImage.image = [UIImage imageNamed:#""];
[cell.contentView addSubview:CheckImage];
UIImageView *BarImage = [[UIImageView alloc]initWithFrame:CGRectMake(185,5,0.5,30)];
BarImage.image = [UIImage imageNamed:#""];
[cell.contentView addSubview:BarImage];
UIImageView *tblImage = [[UIImageView alloc]initWithFrame:CGRectMake(160,5,20,20)];
tblImage.image = [UIImage imageNamed:#""];
[cell.contentView addSubview:tblImage];
}
else
{
UILabel *lbl = [[UILabel alloc]initWithFrame:CGRectMake(10,5,150,30)];
lbl.text = #"";
[cell.contentView addSubview:lbl];
UIImageView *tblImage = [[UIImageView alloc]initWithFrame:CGRectMake(160,5,20,20)];
tblImage.image = [UIImage imageNamed:#""];
[cell.contentView addSubview:tblImage];
}
Note: frames are temporary.
SO you basically have a tableView and you want to add that image "|" in your tableViewCell when you are editing.
I would assume you already have editingEnabled for your tableView, and you will need to implement
- (void)setEditing:(BOOL)editing animated:(BOOL)animate
{
if (editing) {
// Configure self.tableView and individual cells and add the "|" as a subView.
// It will all be tricky, and you should be able to logically place the vertical bar
// But whatever you want to be in your EDIT mode, you will have to configure it here.
} else {
// Re-configure and implement the 'correct' cells back to normal tableView
}
}
Create a UIView with 1px as width and grey as backgroundColor, and add this to the right of check mark should be fine.
If you Edit option is an image then you can do the code like below to show a line.
Steps
1] First import QuartzCore/QuartzCore.h
2] set border width and border color property of your Edit image.
[editImageView.layer setBorderWidth:2.0];
[editImageView.layer setBorderColor:[[UIColor grayColor] CGColor]];
//If you putting a button for edit then also you can set the same. Just replace the editImageView with your editButton
Hope you get exact you want!:)
Take uiimageview in table cell and set its width to 1. Set height according to your tablename.cell.height.
It will definitely solve your problem
You can customize your tableview cell.Just add the subviews at the time of cell creation and put it hidden untill click on edit button.
I have a scrollview of images, I will like to tab them and will pushed to another view.
once i tab on the image, the whole view should push to another view.
From this View to another view
Detail view
Sorry for not asking the question clearly.
my scrollview
-(void)pictureScrolling
{
//init scrollview in location on screen
scrollview = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 100, 320, 290)];
scrollview.backgroundColor = [UIColor redColor];
//pass image filenames
NSMutableArray *fileNames = nearbyFrog.imageFiles; //[[[NSMutableArray alloc] init] autorelease];
//setup the array of uiimageviews
NSMutableArray *imgArray = [[NSMutableArray alloc] init];
UIImageView *imageView;
//loop through the array imgNames to add file names to imgArray
for (NSString *imageName in fileNames) {
imageView = [[UIImageView alloc] init];
imageView.image = [UIImage imageNamed:imageName];
imageView.contentMode = UIViewContentModeScaleAspectFit;
[imgArray addObject:imageView];
[imageView release];
}
CGSize pageSize = scrollview.frame.size;
NSUInteger page = 0;
for (UIView *viewForScrollView in imgArray) {
[scrollview addSubview:viewForScrollView];
viewForScrollView.frame = CGRectMake(pageSize.width * page++ +10, 0, pageSize.width -20 , pageSize.height);
// making use of the scrollView's frame size (pageSize) so we need to;
// +10 to left offset of image pos (1/2 the gap)
// -20 for UIImageView's width (to leave 10 gap at left and right)
}
//add scroll view to view
[self.view addSubview:scrollview];
scrollview.contentSize = CGSizeMake(pageSize.width * [imgArray count], pageSize.height);
//scrollview.contentSize = CGSizeMake(320 *viewcount + 20, 290 );
scrollview.showsHorizontalScrollIndicator =NO;
[scrollview setPagingEnabled:YES];
scrollview.delegate =self;
//paging function for scrollview
CGRect frame = [[UIScreen mainScreen] applicationFrame];
self.pageControl = [[[UIPageControl alloc] initWithFrame:CGRectMake(0, 100, 100, 50)] autorelease];
self.pageControl.center = CGPointMake(frame.size.width/2, frame.size.height-60);
self.pageControl.numberOfPages = [fileNames count];
[self.view addSubview:self.pageControl];
//handle Touch Even
[pageControl addTarget:self action:#selector(changePage:) forControlEvents:UIControlEventValueChanged];
[imgArray release];
}
anybody knows how to do it or can show me a tutorial?
Thanks
I think this is the best way to implement it
Create your own Custom UIImageView class. This is required to store an additional property which will help you identify which image for clicked.
Create a delegate for that class which is called with the single tap event is raised in the UIImageView
Add the Images inside the scrollview using this custom class. The delegate of this class will tell you which image was tapped. You can use this to push a new view controller passing the image details (if necessary).
You can find some sample code in the ThumbImageView class in the scrollviewSuite sample
http://developer.apple.com/library/ios/#samplecode/ScrollViewSuite/Introduction/Intro.html#//apple_ref/doc/uid/DTS40008904-Intro-DontLinkElementID_2
i have an iPhone app in which i have several images. These images add in image view. That image view add sub view with scroll view. Now i want to add a transparent button on every image. How can i do that? I have shown my code below:
- (void)layoutScrollImages{
UIImageView *view = nil;
NSArray *subviews = [scrollView1 subviews];
// reposition all image subviews in a horizontal serial fashion
CGFloat curXLoc = 0;
for (view in subviews)
{
if ([view isKindOfClass:[UIImageView class]] && view.tag > 0)
{
CGRect frame = view.frame;
frame.origin = CGPointMake(curXLoc, 0);
view.frame = frame;
curXLoc += (kScrollWidth);
}
}
// set the content size so it can be scrollable
[scrollView1 setContentSize:CGSizeMake((kNoImages * 500), 700)];
}
- (void)viewDidLoad{
self.view.backgroundColor = [UIColor viewFlipsideBackgroundColor];
// 1. setup the scrollview for multiple images and add it to the view controller
//
// note: the following can be done in Interface Builder, but we show this in code for clarity
[scrollView1 setBackgroundColor:[UIColor blackColor]];
[scrollView1 setCanCancelContentTouches:NO];
scrollView1.indicatorStyle = UIScrollViewIndicatorStyleWhite;
scrollView1.clipsToBounds = YES; // default is NO, we want to restrict drawing within our scrollview
scrollView1.scrollEnabled = YES;
//imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"image0.jpg"]];
[scrollView1 addSubview:imageView];
[scrollView1 setContentSize:CGSizeMake(500,700)];
scrollView1.minimumZoomScale = 1;
scrollView1.maximumZoomScale = 3;
scrollView1.delegate = self;
[scrollView1 setScrollEnabled:YES];
// pagingEnabled property default is NO, if set the scroller will stop or snap at each photo
// if you want free-flowing scroll, don't set this property.
scrollView1.pagingEnabled = YES;
// load all the images from our bundle and add them to the scroll view
NSUInteger i;
for (i = 1; i <= kNoImages; i++)
{
NSString *imageName = [NSString stringWithFormat:#"page-%d.jpg", i];
UIImage *image = [UIImage imageNamed:imageName];
UIImageView *ImageView = [[UIImageView alloc] initWithImage:image];
// setup each frame to a default height and width, it will be properly placed when we call "updateScrollList"
CGRect rect = ImageView.frame;
rect.size.height = kScrollHeight;
rect.size.width = kScrollWidth;
ImageView.frame = rect;
ImageView.tag = i; // tag our images for later use when we place them in serial fashion
UIButton *btnView2= [UIButton buttonWithType:UIButtonTypeCustom];
[btnView2 setTitle:#"view" forState:UIControlStateNormal];
[btnView2 addTarget:self action:#selector(View:)forControlEvents:UIControlEventTouchDown];
[btnView2 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
btnView2.frame=CGRectMake(0,0,460,460 );
[scrollView1 addSubview:btnView2];
scrollView1.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin;
[scrollView1 addSubview:ImageView];
[ImageView release];
}
[self layoutScrollImages]; // now place the photos in serial layout within the scrollview
}
-(IBAction)View:(id)sender{
NSURL *imgUrl=[[NSURL alloc] initWithString:#"http://farm4.static.flickr.com/3567/3523321514_371d9ac42f.jpg"];
NSData *imgData = [NSData dataWithContentsOfURL:imgUrl];
UIImage *img = [UIImage imageWithData:imgData];
UIImageView *imgView = [[UIImageView alloc] initWithImage:img];
[self.view addSubview:imgView];
//[self.navigationController pushViewController:ivc animated:YES];
[imgUrl release];
}
Instead of adding Imageview and transparent button on top of Imageview. You can just add UIButton customtype and set button image to your image in your scrollview. There is no need to take imageview and UIButton both. Just take UIButton and setImage and you will be fine. I tried to give you sample code below from my app. Please modify it as per your need. I think it is what you need.
First of Take all constant in one of global file. I took it in en.lproj. like below.
"TotalThumbnailCount"="6";
"Coloumn"="2";
"ThumbnailHeight"="151";
"ThumbnailWidth"="151";
//Marging between two images
"MarginX" = "6";
"MarginY" = "6";
Then initialize all your local varaibles from global variables. like below
-(void)PopulateVariables{
TotalThumbnail = [NSLocalizedString(#"TotalThumbnailCount",nil) intValue];
Colomn = [NSLocalizedString(#"Coloumn",nil) intValue];
ThumbnailHeight = [NSLocalizedString(#"ThumbnailHeight",nil) intValue];
ThumbnailWidth = [NSLocalizedString(#"ThumbnailWidth",nil) intValue];
MarginX = [NSLocalizedString(#"MarginX",nil) intValue];
MarginY= [NSLocalizedString(#"MarginY",nil) intValue];
}
Now, you should initiate your thumbnail images using UIButton from below function.
-(void)PopulateThumbnails
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
XCordinate=MarginX;
YCordinate = MarginY;file:
for(int i=1; i <=TotalThumbnail;i++){
UIButton *btnMenu = [UIButton buttonWithType:UIButtonTypeCustom];
//NSData *data =UIImageJPEGRepresentation(, 1);
[btnMenu setBackgroundImage:[UIImage imageNamed:[NSString stringWithFormat:#"%d.png",i]] forState:UIControlStateNormal];
CGRect frame = btnMenu.frame;
frame.size.width=ThumbnailWidth;
frame.size.height=ThumbnailHeight;
frame.origin.x=XCordinate;
frame.origin.y=YCordinate;
btnMenu.frame=frame;
btnMenu.tag=i;
btnMenu.alpha = 1;
[btnMenu addTarget:self action:#selector(btnSelected:) forControlEvents:UIControlEventTouchUpInside];
[scrollView addSubview:btnMenu];
XCordinate = btnMenu.frame.origin.x + btnMenu.frame.size.width + MarginX;
if(i%Colomn==0)
{
XPosition = XCordinate;
YCordinate = btnMenu.frame.origin.y + btnMenu.frame.size.height + MarginY;
XCordinate = MarginX;
}
}
[pool release];
}
And then set your scrollview contentsize
scrollView.contentSize = CGSizeMake(XPosition, YCordinate);
When some one tap on any image it will goes in below event.
-(IBAction)btnSelected:(id)sender{
UIButton *btnSelected = sender;
switch (btnSelected.tag) {
}
Let me know if I miss anything and if you don't understand.. Hope this help.
You can add UITapGestureRecognizer to each image:
UITapGestureRecognizer *tapGesture = [[[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(tapAction:)] autorelease];
[imageView addGestureRecognizer:tapGesture];
[self.view addSubview:imageView];
When you create your imageview, create a uibutton and add it as a subview to the imageview.
Set the properties of the button to be custom type. Also set the frame of the button same as that of the imageview.
button = [UIButton buttonWithType:UIButtonTypeCustom];
Google how to create a uibutton programatically. You can then add the necessary selectors to handle button press events.
Alternatively you can create a element in Interfacebuilder. A custom class which has a uiimageview and clear uibutton. You can then use this element to add to your uiscrollview.