How to Add image into UIActionSheet?
Try this:
(void)willPresentActionSheet:(UIActionSheet *)actionSheet{
UIImageView* df = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"yourpic.png"]];
df.center
[actionSheet addSubview:df];
//scale image aspect to fit image view
df.contentMode = UIViewContentModeScaleAspectFit;
//change width of frame
CGRect frame = df.frame;
frame.size.width = 50;
df.frame = frame;
}
It will resize it as shown.
Related
I'm trying to load an image, then grab the size of it so that I can use it in a resizing algorithm.
when I use the following code in ViewdidLoad
UIImage *image = [UIImage imageNamed:#"photo1.png"];
self.imageView = [[UIImageView alloc] initWithImage:image];
[self.scrollView addSubview:self.imageView];
self.imageView.frame = (CGRect){.origin=CGPointMake(0.0f, 0.0f), .size=image.size};
I then need to grab the frame from viewwillappear
CGSize trial = self.imageView.frame.size;
CGRect scrollViewFrame = self.scrollView.frame;
This is what I get.
Why is the scrollviewframe have a size of 0,0?
I have cells in UITableView, I have made custom frame for the label on cell and this frame is resize according to the text.
But my problem is that how I can show those texts inside the bubble (image) as the text size increase the bubble image size also increases.
Try this code for image you use :
- (UIImage *)stretchableImageWithLeftCapWidth:(NSInteger)leftCapWidth topCapHeight:(NSInteger)topCapHeight
Try this:
In Custom Cell.m file :
bgImageView = [[UIImageView alloc] initWithFrame:CGRectMake(10, 30, 80, 40)];
[self.contentView addSubview:bgImageView];
messageContentView = [[UITextView alloc] init];
messageContentView.backgroundColor = [UIColor clearColor];
messageContentView.editable = NO;
messageContentView.scrollEnabled = NO;
[messageContentView sizeToFit];
[self.contentView addSubview:messageContentView];
And in tableView:cellForRowAtindexPath method:
static CGFloat padding = 20.0;
CGSize textSize = {260.0 , 10000.0};
CGSize size = [message sizeWithFont:[UIFont boldSystemFontOfSize:13] constrainedToSize:textSize lineBreakMode:UILineBreakModeWordWrap];
size.width += (padding/2);
UIImage *bgImage = nil;
if([sender isEqualToString:#"you"])
{
bgImage = [[UIImage imageNamed:#"orange.png"] stretchableImageWithLeftCapWidth:24 topCapHeight:15];
[cell.messageContentView setFrame: CGRectMake(padding, padding*2, size.width, size.height)];
[cell.bgImageView setFrame:CGRectMake(cell.messageContentView.frame.origin.x - padding/2,cell.messageContentView.frame.origin.y - padding/2,size.width+padding, size.height+padding)];
}
else
{
bgImage = [[UIImage imageNamed:#"aqua.png"] stretchableImageWithLeftCapWidth:24 topCapHeight:15];
[cell.messageContentView setFrame:CGRectMake(320 - size.width - padding,padding*2,size.width, size.height)];
[cell.bgImageView setFrame:CGRectMake(cell.messageContentView.frame.origin.x - padding/2, cell.messageContentView.frame.origin.y - padding/2,size.width+padding,size.height+padding)];
}
cell.bgImageView.image = bgImage;
you can stretch the image with caps, depending on your image shape it could work
You can use this code
//Your image view
UIImageView *imageView;
//Your image
UIImage *image;
//Left cap is the space you dont wanna stretch on the left side and right side of the image
int leftCap = 20;
//Left cap is the space you dont wanna stretch on the top side and bottom side of the image
int topCap = 20;
//this will only stretch the inner side of the image
imageView.image = [image stretchableImageWithLeftCapWidth:leftCap topCapHeight:topCap];
for more information check this tutorial
- (void)viewDidLoad
{
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(tapDetected:)];
tapGesture.numberOfTapsRequired = 1;
tapGesture.numberOfTouchesRequired = 1;
scrollView = [[UIScrollView alloc] initWithFrame:self.view.frame];
int numberOfImages = 32;
CGFloat currentX = 0.0f;
for (int i=1; i <= numberOfImages; i++) {
// create image
NSString *imageName = [NSString stringWithFormat:#"page-%d.jpg", i];
UIImage *image = [UIImage imageNamed:imageName];
imageView = [[UIImageView alloc] initWithImage:image];
// put image on correct position
CGRect rect = imageView.frame;
rect.origin.x = currentX;
imageView.frame = rect;
// update currentX
currentX +=454; //mageView.frame.size.width;
[scrollView addSubview:imageView];
[imageView release];
}
[scrollView addGestureRecognizer:tapGesture];
scrollView.contentSize = CGSizeMake(currentX, 800);
scrollView.pagingEnabled=YES;
scrollView.userInteractionEnabled = YES;
scrollView.maximumZoomScale = 15;
scrollView.minimumZoomScale = 0.5;
scrollView.bounces = NO;
scrollView.bouncesZoom = NO;
scrollView.delegate = self;
scrollView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin;
[self.view addSubview:scrollView];
[scrollView release];
[super viewDidLoad];
}
}
in above code when i apply zoom or tap event with a single image then it work for that. But when same event apply for array of image then not working. why is it happened?
Its quiet complex to implement zoom in this kind of image flow. Anyway i wil suggest you one idea,
Add the gesture to each imageView. In the method, add a new scrollview, with the respective imageView.. then implement zoom.
EDIT:
In the tapgesture method,
1.Find out the which imageView is visible at that time.
2.Then create a new scrollview,with that single imageview.
3.Implement zoom functionality in that new scrollview.
4.During zoom out,If the new scrollview size is equal to the actual value,remove the new scrollview fro the super view so that the array of images is visible.
Simplest way is create a big wrapper view first, and insert it into ScrollView.
And then add all your imageViews to the wrapper view.
I already have a custom UIAlertView and in which i want to add UIImageView for adding custom UIAlertView.
I have already added UIImageView with array and start animating it but it doesn't work. If you want, I can post the code.
Please help me ASAP. I'm stuck :(
Here is code
- (id)initWithImage:(UIImage *)image text:(NSString *)text
{
//CGSize imageSize = self.backgroundImage.size;
CGRect frame = [[UIScreen mainScreen] bounds];
width = frame.size.width;
height = frame.size.height;
if (self = [super init])
{
loadtext = [[UILabel alloc]initWithFrame:CGRectZero];
loadtext.textColor = [UIColor blackColor];
loadtext.backgroundColor = [UIColor whiteColor];
[self addSubview:loadtext];
//Create the first status image and the indicator view
UIImage *statusImage = [UIImage imageNamed:#"status1.png"];
activityImageView = [[UIImageView alloc]
initWithImage:statusImage];
//Add more images which will be used for the animation
activityImageView.animationImages = [NSArray arrayWithObjects:
[UIImage imageNamed:#"status1.png"],
[UIImage imageNamed:#"status2.png"],
[UIImage imageNamed:#"status3.png"],
[UIImage imageNamed:#"status4.png"],
[UIImage imageNamed:#"status5.png"],
[UIImage imageNamed:#"status6.png"],
[UIImage imageNamed:#"status7.png"],
nil];
//Set the duration of the animation (play with it
//until it looks nice for you)
activityImageView.animationDuration = 1.0;
//Position the activity image view somewhere in
//the middle of your current view
activityImageView.frame = CGRectZero;
//Start the animation
[activityImageView startAnimating];
//Add your custom activity indicator to your current view
[self addSubview:activityImageView];
//self.backgroundImage = image;
}
return self;
}
- (void) layoutSubviews{
//lblUserName.transform = CGAffineTransformMake;
//[lblUserName sizeToFit];
CGRect textRect = activityImageView.frame;
textRect.origin.x = (CGRectGetWidth(self.bounds) - CGRectGetWidth(textRect))/2;
textRect.origin.y = (CGRectGetHeight(self.bounds) - CGRectGetHeight(textRect))/2;
textRect.origin.x -= 100.0;
textRect.origin.y -= 60.0;
textRect.size.height = 30;
textRect.size.width = self.bounds.size.width - 50;
activityImageView.frame = textRect;
}
This code started working. But now this UIImageView is taking my whole screen and coming in front of UIAlertView. Though i give 10px height and width. It shows same. Can anyone help please?
Thanks,
Anks
Yes, you can add image view - in custom alert-view. instead of taking as UIView custom class, need to take UIImage-View & you can use image-view properties.
Change activityImageView.frame = CGRectZero;
to some custom frame.
eg:
activityImageView.frame = CGRectMake(0,0,100,100);
I need to create a horizontal UIScrollView which to hold hundreds of thumbnail images, just like a slide of thumbnails.
For example, there will be 10 thumbnails showing in a single screen, each of them are horizontally adjacent to each other.
My problem is that I don't know how to make a horizontal UIScrollView to hold the multiple thumbnails which showing at the same time ?
A sample photo is as below. See the bottom part of the screen.
Thanks.
You can add all the thumbnails programatically to your scrollview and use the setContentSize method of UIScrollView. you have to pass 2 values in contentOffset. 1 for width and 1 for height. Please follow link to explore more on this. If you need further help please leave a comment.
Hope it helps.
Please consider Following example.
- (void)setupHorizontalScrollView
{
scrollView.delegate = self;
[self.scrollView setBackgroundColor:[UIColor blackColor]];
[scrollView setCanCancelContentTouches:NO];
scrollView.indicatorStyle = UIScrollViewIndicatorStyleWhite;
scrollView.clipsToBounds = NO;
scrollView.scrollEnabled = YES;
scrollView.pagingEnabled = YES;
NSUInteger nimages = 0;
NSInteger tot=0;
CGFloat cx = 0;
for (; ; nimages++) {
NSString *imageName = [NSString stringWithFormat:#"image%d.jpg", (nimages + 1)];
UIImage *image = [UIImage imageNamed:imageName];
if (tot==15) {
break;
}
if (4==nimages) {
nimages=0;
}
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
CGRect rect = imageView.frame;
rect.size.height = 40;
rect.size.width = 40;
rect.origin.x = cx;
rect.origin.y = 0;
imageView.frame = rect;
[scrollView addSubview:imageView];
[imageView release];
cx += imageView.frame.size.width+5;
tot++;
}
self.pageControl.numberOfPages = nimages;
[scrollView setContentSize:CGSizeMake(cx, [scrollView bounds].size.height)];
}
I suggest you to look at nimbus
Check out bjhomer's HSImageSidebarView project. It lets you load a scrollview horizontally or vertically and load in the images. Super easy to implement.
First of all, at storyboard drag and drop the scroll view and make the outlet of scrollview named scrollView. Two array one is mutable and one is immutable.
#property(nonatomic,strong)IBOutlet UIScrollView *scrollView;
#property(nonatomic,strong)NSMutableArray *images;
#property(nonatomic,strong)NSArray *imagesName;
The immutable array only store the images which we want to show on the scroll view.Make sure UIscrollview delegate is defined.
In viewcontoller.m file in didload function do following code:
imagesName = [[NSArray alloc]initWithObjects:#"centipede.jpg",#"ladybug.jpg",#"potatoBug.jpg",#"wolfSpider.jpg", #"ladybug.jpg",#"potatoBug.jpg",#"centipede.jpg",#"wolfSpider.jpg",nil];
// mutable array used to show the images on scrollview dynamic becaus after one
// image when scroll other will come
images = [[NSMutableArray alloc]init];
scrollView.delegate = self;
scrollView.scrollEnabled = YES;
int scrollWidth = 120;
scrollView.contentSize = CGSizeMake(scrollWidth,80);
int xOffset = 0;
//the loop go till all images will load
for(int index=0; index < [imagesName count]; index++)
{
UIImageView *img = [[UIImageView alloc] init];
// make the imageview object because in scrollview we need image
img.frame = CGRectMake(5+xOffset, 0, 160, 110);
// the offset represent the values, used so that topleft for each image will
// change with(5+xOffset, 0)and the bottomright(160, 110)
NSLog(#"image: %#",[imagesName objectAtIndex:index]);
img.image = [UIImage imageNamed:[imagesName objectAtIndex:index]];
// The image will put on the img object
[images insertObject:img atIndex:index];
// Put the img object at the images array which is mutable array
scrollView.contentSize = CGSizeMake(scrollWidth+xOffset,110);
//scroll view size show after 125 width the scroll view enabled
[scrollView addSubview:[images objectAtIndex:index]];
// set images on scroll view
xOffset += 170;
}
You can calculate content size width of the scrollview as width = number of images * size of each image. Then set contentSize of the scrollview to this width and the height that you want (scrollView.contentSize = CGSizeMake(width, height))